Merge branches/quickjs to trunk. This is the way.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3621 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/libuv/src/unix/aix-common.c

@@ -0,0 +1,89 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+
+#include <procinfo.h>
+
+#include <ctype.h>
+
+extern char* original_exepath;
+extern uv_mutex_t process_title_mutex;
+extern uv_once_t process_title_mutex_once;
+extern void init_process_title_mutex_once(void);
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  uint64_t G = 1000000000;
+  timebasestruct_t t;
+  read_wall_time(&t, TIMEBASE_SZ);
+  time_base_to_time(&t, TIMEBASE_SZ);
+  return (uint64_t) t.tb_high * G + t.tb_low;
+}
+
+
+/*
+ * We could use a static buffer for the path manipulations that we need outside
+ * of the function, but this function could be called by multiple consumers and
+ * we don't want to potentially create a race condition in the use of snprintf.
+ * There is no direct way of getting the exe path in AIX - either through /procfs
+ * or through some libc APIs. The below approach is to parse the argv[0]'s pattern
+ * and use it in conjunction with PATH environment variable to craft one.
+ */
+int uv_exepath(char* buffer, size_t* size) {
+  int res;
+  char args[UV__PATH_MAX];
+  size_t cached_len;
+  struct procsinfo pi;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+  if (original_exepath != NULL) {
+    cached_len = strlen(original_exepath);
+    *size -= 1;
+    if (*size > cached_len)
+      *size = cached_len;
+    memcpy(buffer, original_exepath, *size);
+    buffer[*size] = '\0';
+    uv_mutex_unlock(&process_title_mutex);
+    return 0;
+  }
+  uv_mutex_unlock(&process_title_mutex);
+  pi.pi_pid = getpid();
+  res = getargs(&pi, sizeof(pi), args, sizeof(args));
+
+  if (res < 0)
+    return UV_EINVAL;
+
+  return uv__search_path(args, buffer, size);
+}

deps/libuv/src/unix/android-ifaddrs.c

@@ -0,0 +1,713 @@
+/*
+Copyright (c) 2013, Kenneth MacKay
+Copyright (c) 2014, Emergya (Cloud4all, FP7/2007-2013 grant agreement #289016)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "uv/android-ifaddrs.h"
+#include "uv-common.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <net/if_arp.h>
+#include <netinet/in.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_packet.h>
+
+typedef struct NetlinkList
+{
+    struct NetlinkList *m_next;
+    struct nlmsghdr *m_data;
+    unsigned int m_size;
+} NetlinkList;
+
+static int netlink_socket(pid_t *p_pid)
+{
+    struct sockaddr_nl l_addr;
+    socklen_t l_len;
+
+    int l_socket = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+    if(l_socket < 0)
+    {
+        return -1;
+    }
+
+    memset(&l_addr, 0, sizeof(l_addr));
+    l_addr.nl_family = AF_NETLINK;
+    if(bind(l_socket, (struct sockaddr *)&l_addr, sizeof(l_addr)) < 0)
+    {
+        close(l_socket);
+        return -1;
+    }
+
+    l_len = sizeof(l_addr);
+    if(getsockname(l_socket, (struct sockaddr *)&l_addr, &l_len) < 0)
+    {
+        close(l_socket);
+        return -1;
+    }
+    *p_pid = l_addr.nl_pid;
+
+    return l_socket;
+}
+
+static int netlink_send(int p_socket, int p_request)
+{
+    char l_buffer[NLMSG_ALIGN(sizeof(struct nlmsghdr)) + NLMSG_ALIGN(sizeof(struct rtgenmsg))];
+
+    struct nlmsghdr *l_hdr;
+    struct rtgenmsg *l_msg;
+    struct sockaddr_nl l_addr;
+
+    memset(l_buffer, 0, sizeof(l_buffer));
+
+    l_hdr = (struct nlmsghdr *)l_buffer;
+    l_msg = (struct rtgenmsg *)NLMSG_DATA(l_hdr);
+
+    l_hdr->nlmsg_len = NLMSG_LENGTH(sizeof(*l_msg));
+    l_hdr->nlmsg_type = p_request;
+    l_hdr->nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
+    l_hdr->nlmsg_pid = 0;
+    l_hdr->nlmsg_seq = p_socket;
+    l_msg->rtgen_family = AF_UNSPEC;
+
+    memset(&l_addr, 0, sizeof(l_addr));
+    l_addr.nl_family = AF_NETLINK;
+    return (sendto(p_socket, l_hdr, l_hdr->nlmsg_len, 0, (struct sockaddr *)&l_addr, sizeof(l_addr)));
+}
+
+static int netlink_recv(int p_socket, void *p_buffer, size_t p_len)
+{
+    struct sockaddr_nl l_addr;
+    struct msghdr l_msg;
+
+    struct iovec l_iov;
+    l_iov.iov_base = p_buffer;
+    l_iov.iov_len = p_len;
+
+    for(;;)
+    {
+        int l_result;
+        l_msg.msg_name = (void *)&l_addr;
+        l_msg.msg_namelen = sizeof(l_addr);
+        l_msg.msg_iov = &l_iov;
+        l_msg.msg_iovlen = 1;
+        l_msg.msg_control = NULL;
+        l_msg.msg_controllen = 0;
+        l_msg.msg_flags = 0;
+        l_result = recvmsg(p_socket, &l_msg, 0);
+
+        if(l_result < 0)
+        {
+            if(errno == EINTR)
+            {
+                continue;
+            }
+            return -2;
+        }
+
+        /* Buffer was too small */
+        if(l_msg.msg_flags & MSG_TRUNC)
+        {
+            return -1;
+        }
+        return l_result;
+    }
+}
+
+static struct nlmsghdr *getNetlinkResponse(int p_socket, pid_t p_pid, int *p_size, int *p_done)
+{
+    size_t l_size = 4096;
+    void *l_buffer = NULL;
+
+    for(;;)
+    {
+        int l_read;
+
+        uv__free(l_buffer);
+        l_buffer = uv__malloc(l_size);
+        if (l_buffer == NULL)
+        {
+            return NULL;
+        }
+
+        l_read = netlink_recv(p_socket, l_buffer, l_size);
+        *p_size = l_read;
+        if(l_read == -2)
+        {
+            uv__free(l_buffer);
+            return NULL;
+        }
+        if(l_read >= 0)
+        {
+            struct nlmsghdr *l_hdr;
+            for(l_hdr = (struct nlmsghdr *)l_buffer; NLMSG_OK(l_hdr, (unsigned int)l_read); l_hdr = (struct nlmsghdr *)NLMSG_NEXT(l_hdr, l_read))
+            {
+                if((pid_t)l_hdr->nlmsg_pid != p_pid || (int)l_hdr->nlmsg_seq != p_socket)
+                {
+                    continue;
+                }
+
+                if(l_hdr->nlmsg_type == NLMSG_DONE)
+                {
+                    *p_done = 1;
+                    break;
+                }
+
+                if(l_hdr->nlmsg_type == NLMSG_ERROR)
+                {
+                    uv__free(l_buffer);
+                    return NULL;
+                }
+            }
+            return l_buffer;
+        }
+
+        l_size *= 2;
+    }
+}
+
+static NetlinkList *newListItem(struct nlmsghdr *p_data, unsigned int p_size)
+{
+    NetlinkList *l_item = uv__malloc(sizeof(NetlinkList));
+    if (l_item == NULL)
+    {
+        return NULL;
+    }
+
+    l_item->m_next = NULL;
+    l_item->m_data = p_data;
+    l_item->m_size = p_size;
+    return l_item;
+}
+
+static void freeResultList(NetlinkList *p_list)
+{
+    NetlinkList *l_cur;
+    while(p_list)
+    {
+        l_cur = p_list;
+        p_list = p_list->m_next;
+        uv__free(l_cur->m_data);
+        uv__free(l_cur);
+    }
+}
+
+static NetlinkList *getResultList(int p_socket, int p_request, pid_t p_pid)
+{
+    int l_size;
+    int l_done;
+    NetlinkList *l_list;
+    NetlinkList *l_end;
+
+    if(netlink_send(p_socket, p_request) < 0)
+    {
+        return NULL;
+    }
+
+    l_list = NULL;
+    l_end = NULL;
+
+    l_done = 0;
+    while(!l_done)
+    {
+        NetlinkList *l_item;
+
+        struct nlmsghdr *l_hdr = getNetlinkResponse(p_socket, p_pid, &l_size, &l_done);
+        /* Error */
+        if(!l_hdr)
+        {
+            freeResultList(l_list);
+            return NULL;
+        }
+
+        l_item = newListItem(l_hdr, l_size);
+        if (!l_item)
+        {
+            freeResultList(l_list);
+            return NULL;
+        }
+        if(!l_list)
+        {
+            l_list = l_item;
+        }
+        else
+        {
+            l_end->m_next = l_item;
+        }
+        l_end = l_item;
+    }
+    return l_list;
+}
+
+static size_t maxSize(size_t a, size_t b)
+{
+    return (a > b ? a : b);
+}
+
+static size_t calcAddrLen(sa_family_t p_family, int p_dataSize)
+{
+    switch(p_family)
+    {
+        case AF_INET:
+            return sizeof(struct sockaddr_in);
+        case AF_INET6:
+            return sizeof(struct sockaddr_in6);
+        case AF_PACKET:
+            return maxSize(sizeof(struct sockaddr_ll), offsetof(struct sockaddr_ll, sll_addr) + p_dataSize);
+        default:
+            return maxSize(sizeof(struct sockaddr), offsetof(struct sockaddr, sa_data) + p_dataSize);
+    }
+}
+
+static void makeSockaddr(sa_family_t p_family, struct sockaddr *p_dest, void *p_data, size_t p_size)
+{
+    switch(p_family)
+    {
+        case AF_INET:
+            memcpy(&((struct sockaddr_in*)p_dest)->sin_addr, p_data, p_size);
+            break;
+        case AF_INET6:
+            memcpy(&((struct sockaddr_in6*)p_dest)->sin6_addr, p_data, p_size);
+            break;
+        case AF_PACKET:
+            memcpy(((struct sockaddr_ll*)p_dest)->sll_addr, p_data, p_size);
+            ((struct sockaddr_ll*)p_dest)->sll_halen = p_size;
+            break;
+        default:
+            memcpy(p_dest->sa_data, p_data, p_size);
+            break;
+    }
+    p_dest->sa_family = p_family;
+}
+
+static void addToEnd(struct ifaddrs **p_resultList, struct ifaddrs *p_entry)
+{
+    if(!*p_resultList)
+    {
+        *p_resultList = p_entry;
+    }
+    else
+    {
+        struct ifaddrs *l_cur = *p_resultList;
+        while(l_cur->ifa_next)
+        {
+            l_cur = l_cur->ifa_next;
+        }
+        l_cur->ifa_next = p_entry;
+    }
+}
+
+static int interpretLink(struct nlmsghdr *p_hdr, struct ifaddrs **p_resultList)
+{
+    struct ifaddrs *l_entry;
+
+    char *l_index;
+    char *l_name;
+    char *l_addr;
+    char *l_data;
+
+    struct ifinfomsg *l_info = (struct ifinfomsg *)NLMSG_DATA(p_hdr);
+
+    size_t l_nameSize = 0;
+    size_t l_addrSize = 0;
+    size_t l_dataSize = 0;
+
+    size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg));
+    struct rtattr *l_rta;
+    for(l_rta = IFLA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
+    {
+        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
+        switch(l_rta->rta_type)
+        {
+            case IFLA_ADDRESS:
+            case IFLA_BROADCAST:
+                l_addrSize += NLMSG_ALIGN(calcAddrLen(AF_PACKET, l_rtaDataSize));
+                break;
+            case IFLA_IFNAME:
+                l_nameSize += NLMSG_ALIGN(l_rtaSize + 1);
+                break;
+            case IFLA_STATS:
+                l_dataSize += NLMSG_ALIGN(l_rtaSize);
+                break;
+            default:
+                break;
+        }
+    }
+
+    l_entry = uv__malloc(sizeof(struct ifaddrs) + sizeof(int) + l_nameSize + l_addrSize + l_dataSize);
+    if (l_entry == NULL)
+    {
+        return -1;
+    }
+    memset(l_entry, 0, sizeof(struct ifaddrs));
+    l_entry->ifa_name = "";
+
+    l_index = ((char *)l_entry) + sizeof(struct ifaddrs);
+    l_name = l_index + sizeof(int);
+    l_addr = l_name + l_nameSize;
+    l_data = l_addr + l_addrSize;
+
+    /* Save the interface index so we can look it up when handling the
+     * addresses.
+     */
+    memcpy(l_index, &l_info->ifi_index, sizeof(int));
+
+    l_entry->ifa_flags = l_info->ifi_flags;
+
+    l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg));
+    for(l_rta = IFLA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
+    {
+        void *l_rtaData = RTA_DATA(l_rta);
+        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
+        switch(l_rta->rta_type)
+        {
+            case IFLA_ADDRESS:
+            case IFLA_BROADCAST:
+            {
+                size_t l_addrLen = calcAddrLen(AF_PACKET, l_rtaDataSize);
+                makeSockaddr(AF_PACKET, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize);
+                ((struct sockaddr_ll *)l_addr)->sll_ifindex = l_info->ifi_index;
+                ((struct sockaddr_ll *)l_addr)->sll_hatype = l_info->ifi_type;
+                if(l_rta->rta_type == IFLA_ADDRESS)
+                {
+                    l_entry->ifa_addr = (struct sockaddr *)l_addr;
+                }
+                else
+                {
+                    l_entry->ifa_broadaddr = (struct sockaddr *)l_addr;
+                }
+                l_addr += NLMSG_ALIGN(l_addrLen);
+                break;
+            }
+            case IFLA_IFNAME:
+                strncpy(l_name, l_rtaData, l_rtaDataSize);
+                l_name[l_rtaDataSize] = '\0';
+                l_entry->ifa_name = l_name;
+                break;
+            case IFLA_STATS:
+                memcpy(l_data, l_rtaData, l_rtaDataSize);
+                l_entry->ifa_data = l_data;
+                break;
+            default:
+                break;
+        }
+    }
+
+    addToEnd(p_resultList, l_entry);
+    return 0;
+}
+
+static struct ifaddrs *findInterface(int p_index, struct ifaddrs **p_links, int p_numLinks)
+{
+    int l_num = 0;
+    struct ifaddrs *l_cur = *p_links;
+    while(l_cur && l_num < p_numLinks)
+    {
+        char *l_indexPtr = ((char *)l_cur) + sizeof(struct ifaddrs);
+        int l_index;
+        memcpy(&l_index, l_indexPtr, sizeof(int));
+        if(l_index == p_index)
+        {
+            return l_cur;
+        }
+
+        l_cur = l_cur->ifa_next;
+        ++l_num;
+    }
+    return NULL;
+}
+
+static int interpretAddr(struct nlmsghdr *p_hdr, struct ifaddrs **p_resultList, int p_numLinks)
+{
+    struct ifaddrmsg *l_info = (struct ifaddrmsg *)NLMSG_DATA(p_hdr);
+    struct ifaddrs *l_interface = findInterface(l_info->ifa_index, p_resultList, p_numLinks);
+
+    size_t l_nameSize = 0;
+    size_t l_addrSize = 0;
+
+    int l_addedNetmask = 0;
+
+    size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg));
+    struct rtattr *l_rta;
+    struct ifaddrs *l_entry;
+
+    char *l_name;
+    char *l_addr;
+
+    for(l_rta = IFA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
+    {
+        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
+        if(l_info->ifa_family == AF_PACKET)
+        {
+            continue;
+        }
+
+        switch(l_rta->rta_type)
+        {
+            case IFA_ADDRESS:
+            case IFA_LOCAL:
+                l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
+                if((l_info->ifa_family == AF_INET || l_info->ifa_family == AF_INET6) && !l_addedNetmask)
+                {
+                    /* Make room for netmask */
+                    l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
+                    l_addedNetmask = 1;
+                }
+                break;
+            case IFA_BROADCAST:
+                l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
+                break;
+            case IFA_LABEL:
+                l_nameSize += NLMSG_ALIGN(l_rtaDataSize + 1);
+                break;
+            default:
+                break;
+        }
+    }
+
+    l_entry = uv__malloc(sizeof(struct ifaddrs) + l_nameSize + l_addrSize);
+    if (l_entry == NULL)
+    {
+        return -1;
+    }
+    memset(l_entry, 0, sizeof(struct ifaddrs));
+    l_entry->ifa_name = (l_interface ? l_interface->ifa_name : "");
+
+    l_name = ((char *)l_entry) + sizeof(struct ifaddrs);
+    l_addr = l_name + l_nameSize;
+
+    l_entry->ifa_flags = l_info->ifa_flags;
+    if(l_interface)
+    {
+        l_entry->ifa_flags |= l_interface->ifa_flags;
+    }
+
+    l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg));
+    for(l_rta = IFA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
+    {
+        void *l_rtaData = RTA_DATA(l_rta);
+        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
+        switch(l_rta->rta_type)
+        {
+            case IFA_ADDRESS:
+            case IFA_BROADCAST:
+            case IFA_LOCAL:
+            {
+                size_t l_addrLen = calcAddrLen(l_info->ifa_family, l_rtaDataSize);
+                makeSockaddr(l_info->ifa_family, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize);
+                if(l_info->ifa_family == AF_INET6)
+                {
+                    if(IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)l_rtaData) || IN6_IS_ADDR_MC_LINKLOCAL((struct in6_addr *)l_rtaData))
+                    {
+                        ((struct sockaddr_in6 *)l_addr)->sin6_scope_id = l_info->ifa_index;
+                    }
+                }
+
+                /* Apparently in a point-to-point network IFA_ADDRESS contains
+                 * the dest address and IFA_LOCAL contains the local address
+                 */
+                if(l_rta->rta_type == IFA_ADDRESS)
+                {
+                    if(l_entry->ifa_addr)
+                    {
+                        l_entry->ifa_dstaddr = (struct sockaddr *)l_addr;
+                    }
+                    else
+                    {
+                        l_entry->ifa_addr = (struct sockaddr *)l_addr;
+                    }
+                }
+                else if(l_rta->rta_type == IFA_LOCAL)
+                {
+                    if(l_entry->ifa_addr)
+                    {
+                        l_entry->ifa_dstaddr = l_entry->ifa_addr;
+                    }
+                    l_entry->ifa_addr = (struct sockaddr *)l_addr;
+                }
+                else
+                {
+                    l_entry->ifa_broadaddr = (struct sockaddr *)l_addr;
+                }
+                l_addr += NLMSG_ALIGN(l_addrLen);
+                break;
+            }
+            case IFA_LABEL:
+                strncpy(l_name, l_rtaData, l_rtaDataSize);
+                l_name[l_rtaDataSize] = '\0';
+                l_entry->ifa_name = l_name;
+                break;
+            default:
+                break;
+        }
+    }
+
+    if(l_entry->ifa_addr && (l_entry->ifa_addr->sa_family == AF_INET || l_entry->ifa_addr->sa_family == AF_INET6))
+    {
+        unsigned l_maxPrefix = (l_entry->ifa_addr->sa_family == AF_INET ? 32 : 128);
+        unsigned l_prefix = (l_info->ifa_prefixlen > l_maxPrefix ? l_maxPrefix : l_info->ifa_prefixlen);
+        unsigned char l_mask[16] = {0};
+        unsigned i;
+        for(i=0; i<(l_prefix/8); ++i)
+        {
+            l_mask[i] = 0xff;
+        }
+        if(l_prefix % 8)
+        {
+            l_mask[i] = 0xff << (8 - (l_prefix % 8));
+        }
+
+        makeSockaddr(l_entry->ifa_addr->sa_family, (struct sockaddr *)l_addr, l_mask, l_maxPrefix / 8);
+        l_entry->ifa_netmask = (struct sockaddr *)l_addr;
+    }
+
+    addToEnd(p_resultList, l_entry);
+    return 0;
+}
+
+static int interpretLinks(int p_socket, pid_t p_pid, NetlinkList *p_netlinkList, struct ifaddrs **p_resultList)
+{
+
+    int l_numLinks = 0;
+    for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next)
+    {
+        unsigned int l_nlsize = p_netlinkList->m_size;
+        struct nlmsghdr *l_hdr;
+        for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize))
+        {
+            if((pid_t)l_hdr->nlmsg_pid != p_pid || (int)l_hdr->nlmsg_seq != p_socket)
+            {
+                continue;
+            }
+
+            if(l_hdr->nlmsg_type == NLMSG_DONE)
+            {
+                break;
+            }
+
+            if(l_hdr->nlmsg_type == RTM_NEWLINK)
+            {
+                if(interpretLink(l_hdr, p_resultList) == -1)
+                {
+                    return -1;
+                }
+                ++l_numLinks;
+            }
+        }
+    }
+    return l_numLinks;
+}
+
+static int interpretAddrs(int p_socket, pid_t p_pid, NetlinkList *p_netlinkList, struct ifaddrs **p_resultList, int p_numLinks)
+{
+    for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next)
+    {
+        unsigned int l_nlsize = p_netlinkList->m_size;
+        struct nlmsghdr *l_hdr;
+        for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize))
+        {
+            if((pid_t)l_hdr->nlmsg_pid != p_pid || (int)l_hdr->nlmsg_seq != p_socket)
+            {
+                continue;
+            }
+
+            if(l_hdr->nlmsg_type == NLMSG_DONE)
+            {
+                break;
+            }
+
+            if(l_hdr->nlmsg_type == RTM_NEWADDR)
+            {
+                if (interpretAddr(l_hdr, p_resultList, p_numLinks) == -1)
+                {
+                    return -1;
+                }
+            }
+        }
+    }
+    return 0;
+}
+
+int getifaddrs(struct ifaddrs **ifap)
+{
+    int l_socket;
+    int l_result;
+    int l_numLinks;
+    pid_t l_pid;
+    NetlinkList *l_linkResults;
+    NetlinkList *l_addrResults;
+
+    if(!ifap)
+    {
+        return -1;
+    }
+    *ifap = NULL;
+
+    l_socket = netlink_socket(&l_pid);
+    if(l_socket < 0)
+    {
+        return -1;
+    }
+
+    l_linkResults = getResultList(l_socket, RTM_GETLINK, l_pid);
+    if(!l_linkResults)
+    {
+        close(l_socket);
+        return -1;
+    }
+
+    l_addrResults = getResultList(l_socket, RTM_GETADDR, l_pid);
+    if(!l_addrResults)
+    {
+        close(l_socket);
+        freeResultList(l_linkResults);
+        return -1;
+    }
+
+    l_result = 0;
+    l_numLinks = interpretLinks(l_socket, l_pid, l_linkResults, ifap);
+    if(l_numLinks == -1 || interpretAddrs(l_socket, l_pid, l_addrResults, ifap, l_numLinks) == -1)
+    {
+        l_result = -1;
+    }
+
+    freeResultList(l_linkResults);
+    freeResultList(l_addrResults);
+    close(l_socket);
+    return l_result;
+}
+
+void freeifaddrs(struct ifaddrs *ifa)
+{
+    struct ifaddrs *l_cur;
+    while(ifa)
+    {
+        l_cur = ifa;
+        ifa = ifa->ifa_next;
+        uv__free(l_cur);
+    }
+}

deps/libuv/src/unix/async.c

@@ -0,0 +1,253 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/* This file contains both the uv__async internal infrastructure and the
+ * user-facing uv_async_t functions.
+ */
+
+#include "uv.h"
+#include "internal.h"
+#include "atomic-ops.h"
+
+#include <errno.h>
+#include <stdio.h>  /* snprintf() */
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sched.h>  /* sched_yield() */
+
+#ifdef __linux__
+#include <sys/eventfd.h>
+#endif
+
+static void uv__async_send(uv_loop_t* loop);
+static int uv__async_start(uv_loop_t* loop);
+
+
+int uv_async_init(uv_loop_t* loop, uv_async_t* handle, uv_async_cb async_cb) {
+  int err;
+
+  err = uv__async_start(loop);
+  if (err)
+    return err;
+
+  uv__handle_init(loop, (uv_handle_t*)handle, UV_ASYNC);
+  handle->async_cb = async_cb;
+  handle->pending = 0;
+
+  QUEUE_INSERT_TAIL(&loop->async_handles, &handle->queue);
+  uv__handle_start(handle);
+
+  return 0;
+}
+
+
+int uv_async_send(uv_async_t* handle) {
+  /* Do a cheap read first. */
+  if (ACCESS_ONCE(int, handle->pending) != 0)
+    return 0;
+
+  /* Tell the other thread we're busy with the handle. */
+  if (cmpxchgi(&handle->pending, 0, 1) != 0)
+    return 0;
+
+  /* Wake up the other thread's event loop. */
+  uv__async_send(handle->loop);
+
+  /* Tell the other thread we're done. */
+  if (cmpxchgi(&handle->pending, 1, 2) != 1)
+    abort();
+
+  return 0;
+}
+
+
+/* Only call this from the event loop thread. */
+static int uv__async_spin(uv_async_t* handle) {
+  int i;
+  int rc;
+
+  for (;;) {
+    /* 997 is not completely chosen at random. It's a prime number, acyclical
+     * by nature, and should therefore hopefully dampen sympathetic resonance.
+     */
+    for (i = 0; i < 997; i++) {
+      /* rc=0 -- handle is not pending.
+       * rc=1 -- handle is pending, other thread is still working with it.
+       * rc=2 -- handle is pending, other thread is done.
+       */
+      rc = cmpxchgi(&handle->pending, 2, 0);
+
+      if (rc != 1)
+        return rc;
+
+      /* Other thread is busy with this handle, spin until it's done. */
+      cpu_relax();
+    }
+
+    /* Yield the CPU. We may have preempted the other thread while it's
+     * inside the critical section and if it's running on the same CPU
+     * as us, we'll just burn CPU cycles until the end of our time slice.
+     */
+    sched_yield();
+  }
+}
+
+
+void uv__async_close(uv_async_t* handle) {
+  uv__async_spin(handle);
+  QUEUE_REMOVE(&handle->queue);
+  uv__handle_stop(handle);
+}
+
+
+static void uv__async_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
+  char buf[1024];
+  ssize_t r;
+  QUEUE queue;
+  QUEUE* q;
+  uv_async_t* h;
+
+  assert(w == &loop->async_io_watcher);
+
+  for (;;) {
+    r = read(w->fd, buf, sizeof(buf));
+
+    if (r == sizeof(buf))
+      continue;
+
+    if (r != -1)
+      break;
+
+    if (errno == EAGAIN || errno == EWOULDBLOCK)
+      break;
+
+    if (errno == EINTR)
+      continue;
+
+    abort();
+  }
+
+  QUEUE_MOVE(&loop->async_handles, &queue);
+  while (!QUEUE_EMPTY(&queue)) {
+    q = QUEUE_HEAD(&queue);
+    h = QUEUE_DATA(q, uv_async_t, queue);
+
+    QUEUE_REMOVE(q);
+    QUEUE_INSERT_TAIL(&loop->async_handles, q);
+
+    if (0 == uv__async_spin(h))
+      continue;  /* Not pending. */
+
+    if (h->async_cb == NULL)
+      continue;
+
+    h->async_cb(h);
+  }
+}
+
+
+static void uv__async_send(uv_loop_t* loop) {
+  const void* buf;
+  ssize_t len;
+  int fd;
+  int r;
+
+  buf = "";
+  len = 1;
+  fd = loop->async_wfd;
+
+#if defined(__linux__)
+  if (fd == -1) {
+    static const uint64_t val = 1;
+    buf = &val;
+    len = sizeof(val);
+    fd = loop->async_io_watcher.fd;  /* eventfd */
+  }
+#endif
+
+  do
+    r = write(fd, buf, len);
+  while (r == -1 && errno == EINTR);
+
+  if (r == len)
+    return;
+
+  if (r == -1)
+    if (errno == EAGAIN || errno == EWOULDBLOCK)
+      return;
+
+  abort();
+}
+
+
+static int uv__async_start(uv_loop_t* loop) {
+  int pipefd[2];
+  int err;
+
+  if (loop->async_io_watcher.fd != -1)
+    return 0;
+
+#ifdef __linux__
+  err = eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
+  if (err < 0)
+    return UV__ERR(errno);
+
+  pipefd[0] = err;
+  pipefd[1] = -1;
+#else
+  err = uv__make_pipe(pipefd, UV__F_NONBLOCK);
+  if (err < 0)
+    return err;
+#endif
+
+  uv__io_init(&loop->async_io_watcher, uv__async_io, pipefd[0]);
+  uv__io_start(loop, &loop->async_io_watcher, POLLIN);
+  loop->async_wfd = pipefd[1];
+
+  return 0;
+}
+
+
+int uv__async_fork(uv_loop_t* loop) {
+  if (loop->async_io_watcher.fd == -1) /* never started */
+    return 0;
+
+  uv__async_stop(loop);
+
+  return uv__async_start(loop);
+}
+
+
+void uv__async_stop(uv_loop_t* loop) {
+  if (loop->async_io_watcher.fd == -1)
+    return;
+
+  if (loop->async_wfd != -1) {
+    if (loop->async_wfd != loop->async_io_watcher.fd)
+      uv__close(loop->async_wfd);
+    loop->async_wfd = -1;
+  }
+
+  uv__io_stop(loop, &loop->async_io_watcher, POLLIN);
+  uv__close(loop->async_io_watcher.fd);
+  loop->async_io_watcher.fd = -1;
+}

deps/libuv/src/unix/atomic-ops.h

@@ -0,0 +1,61 @@
+/* Copyright (c) 2013, Ben Noordhuis <info@bnoordhuis.nl>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef UV_ATOMIC_OPS_H_
+#define UV_ATOMIC_OPS_H_
+
+#include "internal.h"  /* UV_UNUSED */
+
+#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+#include <atomic.h>
+#endif
+
+UV_UNUSED(static int cmpxchgi(int* ptr, int oldval, int newval));
+UV_UNUSED(static void cpu_relax(void));
+
+/* Prefer hand-rolled assembly over the gcc builtins because the latter also
+ * issue full memory barriers.
+ */
+UV_UNUSED(static int cmpxchgi(int* ptr, int oldval, int newval)) {
+#if defined(__i386__) || defined(__x86_64__)
+  int out;
+  __asm__ __volatile__ ("lock; cmpxchg %2, %1;"
+                        : "=a" (out), "+m" (*(volatile int*) ptr)
+                        : "r" (newval), "0" (oldval)
+                        : "memory");
+  return out;
+#elif defined(__MVS__)
+  unsigned int op4;
+  if (__plo_CSST(ptr, (unsigned int*) &oldval, newval,
+                (unsigned int*) ptr, *ptr, &op4))
+    return oldval;
+  else
+    return op4;
+#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+  return atomic_cas_uint((uint_t *)ptr, (uint_t)oldval, (uint_t)newval);
+#else
+  return __sync_val_compare_and_swap(ptr, oldval, newval);
+#endif
+}
+
+UV_UNUSED(static void cpu_relax(void)) {
+#if defined(__i386__) || defined(__x86_64__)
+  __asm__ __volatile__ ("rep; nop");  /* a.k.a. PAUSE */
+#elif (defined(__arm__) && __ARM_ARCH >= 7) || defined(__aarch64__)
+  __asm__ volatile("yield");
+#endif
+}
+
+#endif  /* UV_ATOMIC_OPS_H_ */

deps/libuv/src/unix/bsd-ifaddrs.c

@@ -0,0 +1,163 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <errno.h>
+#include <stddef.h>
+
+#include <ifaddrs.h>
+#include <net/if.h>
+#if !defined(__CYGWIN__) && !defined(__MSYS__)
+#include <net/if_dl.h>
+#endif
+
+#if defined(__HAIKU__)
+#define IFF_RUNNING IFF_LINK
+#endif
+
+static int uv__ifaddr_exclude(struct ifaddrs *ent, int exclude_type) {
+  if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)))
+    return 1;
+  if (ent->ifa_addr == NULL)
+    return 1;
+#if !defined(__CYGWIN__) && !defined(__MSYS__)
+  /*
+   * If `exclude_type` is `UV__EXCLUDE_IFPHYS`, just see whether `sa_family`
+   * equals to `AF_LINK` or not. Otherwise, the result depends on the operation
+   * system with `AF_LINK` or `PF_INET`.
+   */
+  if (exclude_type == UV__EXCLUDE_IFPHYS)
+    return (ent->ifa_addr->sa_family != AF_LINK);
+#endif
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__DragonFly__) || \
+    defined(__HAIKU__)
+  /*
+   * On BSD getifaddrs returns information related to the raw underlying
+   * devices.  We're not interested in this information.
+   */
+  if (ent->ifa_addr->sa_family == AF_LINK)
+    return 1;
+#elif defined(__NetBSD__) || defined(__OpenBSD__)
+  if (ent->ifa_addr->sa_family != PF_INET &&
+      ent->ifa_addr->sa_family != PF_INET6)
+    return 1;
+#endif
+  return 0;
+}
+
+int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
+  struct ifaddrs* addrs;
+  struct ifaddrs* ent;
+  uv_interface_address_t* address;
+#if !(defined(__CYGWIN__) || defined(__MSYS__))
+  int i;
+#endif
+
+  *count = 0;
+  *addresses = NULL;
+
+  if (getifaddrs(&addrs) != 0)
+    return UV__ERR(errno);
+
+  /* Count the number of interfaces */
+  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
+    if (uv__ifaddr_exclude(ent, UV__EXCLUDE_IFADDR))
+      continue;
+    (*count)++;
+  }
+
+  if (*count == 0) {
+    freeifaddrs(addrs);
+    return 0;
+  }
+
+  /* Make sure the memory is initiallized to zero using calloc() */
+  *addresses = uv__calloc(*count, sizeof(**addresses));
+
+  if (*addresses == NULL) {
+    freeifaddrs(addrs);
+    return UV_ENOMEM;
+  }
+
+  address = *addresses;
+
+  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
+    if (uv__ifaddr_exclude(ent, UV__EXCLUDE_IFADDR))
+      continue;
+
+    address->name = uv__strdup(ent->ifa_name);
+
+    if (ent->ifa_addr->sa_family == AF_INET6) {
+      address->address.address6 = *((struct sockaddr_in6*) ent->ifa_addr);
+    } else {
+      address->address.address4 = *((struct sockaddr_in*) ent->ifa_addr);
+    }
+
+    if (ent->ifa_netmask == NULL) {
+      memset(&address->netmask, 0, sizeof(address->netmask));
+    } else if (ent->ifa_netmask->sa_family == AF_INET6) {
+      address->netmask.netmask6 = *((struct sockaddr_in6*) ent->ifa_netmask);
+    } else {
+      address->netmask.netmask4 = *((struct sockaddr_in*) ent->ifa_netmask);
+    }
+
+    address->is_internal = !!(ent->ifa_flags & IFF_LOOPBACK);
+
+    address++;
+  }
+
+#if !(defined(__CYGWIN__) || defined(__MSYS__))
+  /* Fill in physical addresses for each interface */
+  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
+    if (uv__ifaddr_exclude(ent, UV__EXCLUDE_IFPHYS))
+      continue;
+
+    address = *addresses;
+
+    for (i = 0; i < *count; i++) {
+      if (strcmp(address->name, ent->ifa_name) == 0) {
+        struct sockaddr_dl* sa_addr;
+        sa_addr = (struct sockaddr_dl*)(ent->ifa_addr);
+        memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
+      }
+      address++;
+    }
+  }
+#endif
+
+  freeifaddrs(addrs);
+
+  return 0;
+}
+
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses,
+                                 int count) {
+  int i;
+
+  for (i = 0; i < count; i++) {
+    uv__free(addresses[i].name);
+  }
+
+  uv__free(addresses);
+}

deps/libuv/src/unix/bsd-proctitle.c

@@ -0,0 +1,100 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <sys/types.h>
+#include <unistd.h>
+
+
+static uv_mutex_t process_title_mutex;
+static uv_once_t process_title_mutex_once = UV_ONCE_INIT;
+static char* process_title;
+
+
+static void init_process_title_mutex_once(void) {
+  if (uv_mutex_init(&process_title_mutex))
+    abort();
+}
+
+
+void uv__process_title_cleanup(void) {
+  /* TODO(bnoordhuis) uv_mutex_destroy(&process_title_mutex)
+   * and reset process_title_mutex_once?
+   */
+}
+
+
+char** uv_setup_args(int argc, char** argv) {
+  process_title = argc > 0 ? uv__strdup(argv[0]) : NULL;
+  return argv;
+}
+
+
+int uv_set_process_title(const char* title) {
+  char* new_title;
+
+  new_title = uv__strdup(title);
+  if (new_title == NULL)
+    return UV_ENOMEM;
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+
+  uv__free(process_title);
+  process_title = new_title;
+  setproctitle("%s", title);
+
+  uv_mutex_unlock(&process_title_mutex);
+
+  return 0;
+}
+
+
+int uv_get_process_title(char* buffer, size_t size) {
+  size_t len;
+
+  if (buffer == NULL || size == 0)
+    return UV_EINVAL;
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+
+  if (process_title != NULL) {
+    len = strlen(process_title) + 1;
+
+    if (size < len) {
+      uv_mutex_unlock(&process_title_mutex);
+      return UV_ENOBUFS;
+    }
+
+    memcpy(buffer, process_title, len);
+  } else {
+    len = 0;
+  }
+
+  uv_mutex_unlock(&process_title_mutex);
+
+  buffer[len] = '\0';
+
+  return 0;
+}

deps/libuv/src/unix/cygwin.c

@@ -0,0 +1,53 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <sys/sysinfo.h>
+#include <unistd.h>
+
+int uv_uptime(double* uptime) {
+  struct sysinfo info;
+
+  if (sysinfo(&info) < 0)
+    return UV__ERR(errno);
+
+  *uptime = info.uptime;
+  return 0;
+}
+
+int uv_resident_set_memory(size_t* rss) {
+  /* FIXME: read /proc/meminfo? */
+  *rss = 0;
+  return 0;
+}
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  /* FIXME: read /proc/stat? */
+  *cpu_infos = NULL;
+  *count = 0;
+  return UV_ENOSYS;
+}
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}

deps/libuv/src/unix/darwin-proctitle.c

@@ -0,0 +1,192 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <dlfcn.h>
+#include <errno.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <TargetConditionals.h>
+
+#if !TARGET_OS_IPHONE
+#include "darwin-stub.h"
+#endif
+
+
+static int uv__pthread_setname_np(const char* name) {
+  char namebuf[64];  /* MAXTHREADNAMESIZE */
+  int err;
+
+  strncpy(namebuf, name, sizeof(namebuf) - 1);
+  namebuf[sizeof(namebuf) - 1] = '\0';
+
+  err = pthread_setname_np(namebuf);
+  if (err)
+    return UV__ERR(err);
+
+  return 0;
+}
+
+
+int uv__set_process_title(const char* title) {
+#if TARGET_OS_IPHONE
+  return uv__pthread_setname_np(title);
+#else
+  CFStringRef (*pCFStringCreateWithCString)(CFAllocatorRef,
+                                            const char*,
+                                            CFStringEncoding);
+  CFBundleRef (*pCFBundleGetBundleWithIdentifier)(CFStringRef);
+  void *(*pCFBundleGetDataPointerForName)(CFBundleRef, CFStringRef);
+  void *(*pCFBundleGetFunctionPointerForName)(CFBundleRef, CFStringRef);
+  CFTypeRef (*pLSGetCurrentApplicationASN)(void);
+  OSStatus (*pLSSetApplicationInformationItem)(int,
+                                               CFTypeRef,
+                                               CFStringRef,
+                                               CFStringRef,
+                                               CFDictionaryRef*);
+  void* application_services_handle;
+  void* core_foundation_handle;
+  CFBundleRef launch_services_bundle;
+  CFStringRef* display_name_key;
+  CFDictionaryRef (*pCFBundleGetInfoDictionary)(CFBundleRef);
+  CFBundleRef (*pCFBundleGetMainBundle)(void);
+  CFDictionaryRef (*pLSApplicationCheckIn)(int, CFDictionaryRef);
+  void (*pLSSetApplicationLaunchServicesServerConnectionStatus)(uint64_t,
+                                                                void*);
+  CFTypeRef asn;
+  int err;
+
+  err = UV_ENOENT;
+  application_services_handle = dlopen("/System/Library/Frameworks/"
+                                       "ApplicationServices.framework/"
+                                       "Versions/A/ApplicationServices",
+                                       RTLD_LAZY | RTLD_LOCAL);
+  core_foundation_handle = dlopen("/System/Library/Frameworks/"
+                                  "CoreFoundation.framework/"
+                                  "Versions/A/CoreFoundation",
+                                  RTLD_LAZY | RTLD_LOCAL);
+
+  if (application_services_handle == NULL || core_foundation_handle == NULL)
+    goto out;
+
+  *(void **)(&pCFStringCreateWithCString) =
+      dlsym(core_foundation_handle, "CFStringCreateWithCString");
+  *(void **)(&pCFBundleGetBundleWithIdentifier) =
+      dlsym(core_foundation_handle, "CFBundleGetBundleWithIdentifier");
+  *(void **)(&pCFBundleGetDataPointerForName) =
+      dlsym(core_foundation_handle, "CFBundleGetDataPointerForName");
+  *(void **)(&pCFBundleGetFunctionPointerForName) =
+      dlsym(core_foundation_handle, "CFBundleGetFunctionPointerForName");
+
+  if (pCFStringCreateWithCString == NULL ||
+      pCFBundleGetBundleWithIdentifier == NULL ||
+      pCFBundleGetDataPointerForName == NULL ||
+      pCFBundleGetFunctionPointerForName == NULL) {
+    goto out;
+  }
+
+#define S(s) pCFStringCreateWithCString(NULL, (s), kCFStringEncodingUTF8)
+
+  launch_services_bundle =
+      pCFBundleGetBundleWithIdentifier(S("com.apple.LaunchServices"));
+
+  if (launch_services_bundle == NULL)
+    goto out;
+
+  *(void **)(&pLSGetCurrentApplicationASN) =
+      pCFBundleGetFunctionPointerForName(launch_services_bundle,
+                                         S("_LSGetCurrentApplicationASN"));
+
+  if (pLSGetCurrentApplicationASN == NULL)
+    goto out;
+
+  *(void **)(&pLSSetApplicationInformationItem) =
+      pCFBundleGetFunctionPointerForName(launch_services_bundle,
+                                         S("_LSSetApplicationInformationItem"));
+
+  if (pLSSetApplicationInformationItem == NULL)
+    goto out;
+
+  display_name_key = pCFBundleGetDataPointerForName(launch_services_bundle,
+                                                    S("_kLSDisplayNameKey"));
+
+  if (display_name_key == NULL || *display_name_key == NULL)
+    goto out;
+
+  *(void **)(&pCFBundleGetInfoDictionary) = dlsym(core_foundation_handle,
+                                     "CFBundleGetInfoDictionary");
+  *(void **)(&pCFBundleGetMainBundle) = dlsym(core_foundation_handle,
+                                 "CFBundleGetMainBundle");
+  if (pCFBundleGetInfoDictionary == NULL || pCFBundleGetMainBundle == NULL)
+    goto out;
+
+  *(void **)(&pLSApplicationCheckIn) = pCFBundleGetFunctionPointerForName(
+      launch_services_bundle,
+      S("_LSApplicationCheckIn"));
+
+  if (pLSApplicationCheckIn == NULL)
+    goto out;
+
+  *(void **)(&pLSSetApplicationLaunchServicesServerConnectionStatus) =
+      pCFBundleGetFunctionPointerForName(
+          launch_services_bundle,
+          S("_LSSetApplicationLaunchServicesServerConnectionStatus"));
+
+  if (pLSSetApplicationLaunchServicesServerConnectionStatus == NULL)
+    goto out;
+
+  pLSSetApplicationLaunchServicesServerConnectionStatus(0, NULL);
+
+  /* Check into process manager?! */
+  pLSApplicationCheckIn(-2,
+                        pCFBundleGetInfoDictionary(pCFBundleGetMainBundle()));
+
+  asn = pLSGetCurrentApplicationASN();
+
+  err = UV_EBUSY;
+  if (asn == NULL)
+    goto out;
+
+  err = UV_EINVAL;
+  if (pLSSetApplicationInformationItem(-2,  /* Magic value. */
+                                       asn,
+                                       *display_name_key,
+                                       S(title),
+                                       NULL) != noErr) {
+    goto out;
+  }
+
+  uv__pthread_setname_np(title);  /* Don't care if it fails. */
+  err = 0;
+
+out:
+  if (core_foundation_handle != NULL)
+    dlclose(core_foundation_handle);
+
+  if (application_services_handle != NULL)
+    dlclose(application_services_handle);
+
+  return err;
+#endif  /* !TARGET_OS_IPHONE */
+}

deps/libuv/src/unix/darwin-stub.h

@@ -0,0 +1,113 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_DARWIN_STUB_H_
+#define UV_DARWIN_STUB_H_
+
+#include <stdint.h>
+
+struct CFArrayCallBacks;
+struct CFRunLoopSourceContext;
+struct FSEventStreamContext;
+struct CFRange;
+
+typedef double CFAbsoluteTime;
+typedef double CFTimeInterval;
+typedef int FSEventStreamEventFlags;
+typedef int OSStatus;
+typedef long CFIndex;
+typedef struct CFArrayCallBacks CFArrayCallBacks;
+typedef struct CFRunLoopSourceContext CFRunLoopSourceContext;
+typedef struct FSEventStreamContext FSEventStreamContext;
+typedef uint32_t FSEventStreamCreateFlags;
+typedef uint64_t FSEventStreamEventId;
+typedef unsigned CFStringEncoding;
+typedef void* CFAllocatorRef;
+typedef void* CFArrayRef;
+typedef void* CFBundleRef;
+typedef void* CFDataRef;
+typedef void* CFDictionaryRef;
+typedef void* CFMutableDictionaryRef;
+typedef struct CFRange CFRange;
+typedef void* CFRunLoopRef;
+typedef void* CFRunLoopSourceRef;
+typedef void* CFStringRef;
+typedef void* CFTypeRef;
+typedef void* FSEventStreamRef;
+
+typedef uint32_t IOOptionBits;
+typedef unsigned int io_iterator_t;
+typedef unsigned int io_object_t;
+typedef unsigned int io_service_t;
+typedef unsigned int io_registry_entry_t;
+
+
+typedef void (*FSEventStreamCallback)(const FSEventStreamRef,
+                                      void*,
+                                      size_t,
+                                      void*,
+                                      const FSEventStreamEventFlags*,
+                                      const FSEventStreamEventId*);
+
+struct CFRunLoopSourceContext {
+  CFIndex version;
+  void* info;
+  void* pad[7];
+  void (*perform)(void*);
+};
+
+struct FSEventStreamContext {
+  CFIndex version;
+  void* info;
+  void* pad[3];
+};
+
+struct CFRange {
+  CFIndex location;
+  CFIndex length;
+};
+
+static const CFStringEncoding kCFStringEncodingUTF8 = 0x8000100;
+static const OSStatus noErr = 0;
+
+static const FSEventStreamEventId kFSEventStreamEventIdSinceNow = -1;
+
+static const int kFSEventStreamCreateFlagNoDefer = 2;
+static const int kFSEventStreamCreateFlagFileEvents = 16;
+
+static const int kFSEventStreamEventFlagEventIdsWrapped = 8;
+static const int kFSEventStreamEventFlagHistoryDone = 16;
+static const int kFSEventStreamEventFlagItemChangeOwner = 0x4000;
+static const int kFSEventStreamEventFlagItemCreated = 0x100;
+static const int kFSEventStreamEventFlagItemFinderInfoMod = 0x2000;
+static const int kFSEventStreamEventFlagItemInodeMetaMod = 0x400;
+static const int kFSEventStreamEventFlagItemIsDir = 0x20000;
+static const int kFSEventStreamEventFlagItemModified = 0x1000;
+static const int kFSEventStreamEventFlagItemRemoved = 0x200;
+static const int kFSEventStreamEventFlagItemRenamed = 0x800;
+static const int kFSEventStreamEventFlagItemXattrMod = 0x8000;
+static const int kFSEventStreamEventFlagKernelDropped = 4;
+static const int kFSEventStreamEventFlagMount = 64;
+static const int kFSEventStreamEventFlagRootChanged = 32;
+static const int kFSEventStreamEventFlagUnmount = 128;
+static const int kFSEventStreamEventFlagUserDropped = 2;
+
+#endif  /* UV_DARWIN_STUB_H_ */

deps/libuv/src/unix/darwin.c

@@ -0,0 +1,371 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <stdint.h>
+#include <errno.h>
+
+#include <dlfcn.h>
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+#include <mach-o/dyld.h> /* _NSGetExecutablePath */
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <unistd.h>  /* sysconf */
+
+#if !TARGET_OS_IPHONE
+#include "darwin-stub.h"
+#endif
+
+static uv_once_t once = UV_ONCE_INIT;
+static uint64_t (*time_func)(void);
+static mach_timebase_info_data_t timebase;
+
+typedef unsigned char UInt8;
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  loop->cf_state = NULL;
+
+  if (uv__kqueue_init(loop))
+    return UV__ERR(errno);
+
+  return 0;
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+  uv__fsevents_loop_delete(loop);
+}
+
+
+static void uv__hrtime_init_once(void) {
+  if (KERN_SUCCESS != mach_timebase_info(&timebase))
+    abort();
+
+  time_func = (uint64_t (*)(void)) dlsym(RTLD_DEFAULT, "mach_continuous_time");
+  if (time_func == NULL)
+    time_func = mach_absolute_time;
+}
+
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  uv_once(&once, uv__hrtime_init_once);
+  return time_func() * timebase.numer / timebase.denom;
+}
+
+
+int uv_exepath(char* buffer, size_t* size) {
+  /* realpath(exepath) may be > PATH_MAX so double it to be on the safe side. */
+  char abspath[PATH_MAX * 2 + 1];
+  char exepath[PATH_MAX + 1];
+  uint32_t exepath_size;
+  size_t abspath_size;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  exepath_size = sizeof(exepath);
+  if (_NSGetExecutablePath(exepath, &exepath_size))
+    return UV_EIO;
+
+  if (realpath(exepath, abspath) != abspath)
+    return UV__ERR(errno);
+
+  abspath_size = strlen(abspath);
+  if (abspath_size == 0)
+    return UV_EIO;
+
+  *size -= 1;
+  if (*size > abspath_size)
+    *size = abspath_size;
+
+  memcpy(buffer, abspath, *size);
+  buffer[*size] = '\0';
+
+  return 0;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  vm_statistics_data_t info;
+  mach_msg_type_number_t count = sizeof(info) / sizeof(integer_t);
+
+  if (host_statistics(mach_host_self(), HOST_VM_INFO,
+                      (host_info_t)&info, &count) != KERN_SUCCESS) {
+    return UV_EINVAL;  /* FIXME(bnoordhuis) Translate error. */
+  }
+
+  return (uint64_t) info.free_count * sysconf(_SC_PAGESIZE);
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  uint64_t info;
+  int which[] = {CTL_HW, HW_MEMSIZE};
+  size_t size = sizeof(info);
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+void uv_loadavg(double avg[3]) {
+  struct loadavg info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_LOADAVG};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return;
+
+  avg[0] = (double) info.ldavg[0] / info.fscale;
+  avg[1] = (double) info.ldavg[1] / info.fscale;
+  avg[2] = (double) info.ldavg[2] / info.fscale;
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  mach_msg_type_number_t count;
+  task_basic_info_data_t info;
+  kern_return_t err;
+
+  count = TASK_BASIC_INFO_COUNT;
+  err = task_info(mach_task_self(),
+                  TASK_BASIC_INFO,
+                  (task_info_t) &info,
+                  &count);
+  (void) &err;
+  /* task_info(TASK_BASIC_INFO) cannot really fail. Anything other than
+   * KERN_SUCCESS implies a libuv bug.
+   */
+  assert(err == KERN_SUCCESS);
+  *rss = info.resident_size;
+
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  time_t now;
+  struct timeval info;
+  size_t size = sizeof(info);
+  static int which[] = {CTL_KERN, KERN_BOOTTIME};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  now = time(NULL);
+  *uptime = now - info.tv_sec;
+
+  return 0;
+}
+
+static int uv__get_cpu_speed(uint64_t* speed) {
+  /* IOKit */
+  void (*pIOObjectRelease)(io_object_t);
+  kern_return_t (*pIOMasterPort)(mach_port_t, mach_port_t*);
+  CFMutableDictionaryRef (*pIOServiceMatching)(const char*);
+  kern_return_t (*pIOServiceGetMatchingServices)(mach_port_t,
+                                                 CFMutableDictionaryRef,
+                                                 io_iterator_t*);
+  io_service_t (*pIOIteratorNext)(io_iterator_t);
+  CFTypeRef (*pIORegistryEntryCreateCFProperty)(io_registry_entry_t,
+                                                CFStringRef,
+                                                CFAllocatorRef,
+                                                IOOptionBits);
+
+  /* CoreFoundation */
+  CFStringRef (*pCFStringCreateWithCString)(CFAllocatorRef,
+                                            const char*,
+                                            CFStringEncoding);
+  CFStringEncoding (*pCFStringGetSystemEncoding)(void);
+  UInt8 *(*pCFDataGetBytePtr)(CFDataRef);
+  CFIndex (*pCFDataGetLength)(CFDataRef);
+  void (*pCFDataGetBytes)(CFDataRef, CFRange, UInt8*);
+  void (*pCFRelease)(CFTypeRef);
+
+  void* core_foundation_handle;
+  void* iokit_handle;
+  int err;
+
+  kern_return_t kr;
+  mach_port_t mach_port;
+  io_iterator_t it;
+  io_object_t service;
+
+  mach_port = 0;
+
+  err = UV_ENOENT;
+  core_foundation_handle = dlopen("/System/Library/Frameworks/"
+                                  "CoreFoundation.framework/"
+                                  "Versions/A/CoreFoundation",
+                                  RTLD_LAZY | RTLD_LOCAL);
+  iokit_handle = dlopen("/System/Library/Frameworks/IOKit.framework/"
+                        "Versions/A/IOKit",
+                        RTLD_LAZY | RTLD_LOCAL);
+
+  if (core_foundation_handle == NULL || iokit_handle == NULL)
+    goto out;
+
+#define V(handle, symbol)                                                     \
+  do {                                                                        \
+    *(void **)(&p ## symbol) = dlsym((handle), #symbol);                      \
+    if (p ## symbol == NULL)                                                  \
+      goto out;                                                               \
+  }                                                                           \
+  while (0)
+  V(iokit_handle, IOMasterPort);
+  V(iokit_handle, IOServiceMatching);
+  V(iokit_handle, IOServiceGetMatchingServices);
+  V(iokit_handle, IOIteratorNext);
+  V(iokit_handle, IOObjectRelease);
+  V(iokit_handle, IORegistryEntryCreateCFProperty);
+  V(core_foundation_handle, CFStringCreateWithCString);
+  V(core_foundation_handle, CFStringGetSystemEncoding);
+  V(core_foundation_handle, CFDataGetBytePtr);
+  V(core_foundation_handle, CFDataGetLength);
+  V(core_foundation_handle, CFDataGetBytes);
+  V(core_foundation_handle, CFRelease);
+#undef V
+
+#define S(s) pCFStringCreateWithCString(NULL, (s), kCFStringEncodingUTF8)
+
+  kr = pIOMasterPort(MACH_PORT_NULL, &mach_port);
+  assert(kr == KERN_SUCCESS);
+  CFMutableDictionaryRef classes_to_match
+      = pIOServiceMatching("IOPlatformDevice");
+  kr = pIOServiceGetMatchingServices(mach_port, classes_to_match, &it);
+  assert(kr == KERN_SUCCESS);
+  service = pIOIteratorNext(it);
+
+  CFStringRef device_type_str = S("device_type");
+  CFStringRef clock_frequency_str = S("clock-frequency");
+
+  while (service != 0) {
+    CFDataRef data;
+    data = pIORegistryEntryCreateCFProperty(service,
+                                            device_type_str,
+                                            NULL,
+                                            0);
+    if (data) {
+      const UInt8* raw = pCFDataGetBytePtr(data);
+      if (strncmp((char*)raw, "cpu", 3) == 0 ||
+          strncmp((char*)raw, "processor", 9) == 0) {
+        CFDataRef freq_ref;
+        freq_ref = pIORegistryEntryCreateCFProperty(service,
+                                                    clock_frequency_str,
+                                                    NULL,
+                                                    0);
+        if (freq_ref) {
+          uint32_t freq;
+          CFIndex len = pCFDataGetLength(freq_ref);
+          CFRange range;
+          range.location = 0;
+          range.length = len;
+
+          pCFDataGetBytes(freq_ref, range, (UInt8*)&freq);
+          *speed = freq;
+          pCFRelease(freq_ref);
+          pCFRelease(data);
+          break;
+        }
+      }
+      pCFRelease(data);
+    }
+
+    service = pIOIteratorNext(it);
+  }
+
+  pIOObjectRelease(it);
+
+  err = 0;
+out:
+  if (core_foundation_handle != NULL)
+    dlclose(core_foundation_handle);
+
+  if (iokit_handle != NULL)
+    dlclose(iokit_handle);
+
+  mach_port_deallocate(mach_task_self(), mach_port);
+
+  return err;
+}
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
+               multiplier = ((uint64_t)1000L / ticks);
+  char model[512];
+  size_t size;
+  unsigned int i;
+  natural_t numcpus;
+  mach_msg_type_number_t msg_type;
+  processor_cpu_load_info_data_t *info;
+  uv_cpu_info_t* cpu_info;
+  uint64_t cpuspeed;
+  int err;
+
+  size = sizeof(model);
+  if (sysctlbyname("machdep.cpu.brand_string", &model, &size, NULL, 0) &&
+      sysctlbyname("hw.model", &model, &size, NULL, 0)) {
+    return UV__ERR(errno);
+  }
+
+  err = uv__get_cpu_speed(&cpuspeed);
+  if (err < 0)
+    return err;
+
+  if (host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &numcpus,
+                          (processor_info_array_t*)&info,
+                          &msg_type) != KERN_SUCCESS) {
+    return UV_EINVAL;  /* FIXME(bnoordhuis) Translate error. */
+  }
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
+  if (!(*cpu_infos)) {
+    vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type);
+    return UV_ENOMEM;
+  }
+
+  *count = numcpus;
+
+  for (i = 0; i < numcpus; i++) {
+    cpu_info = &(*cpu_infos)[i];
+
+    cpu_info->cpu_times.user = (uint64_t)(info[i].cpu_ticks[0]) * multiplier;
+    cpu_info->cpu_times.nice = (uint64_t)(info[i].cpu_ticks[3]) * multiplier;
+    cpu_info->cpu_times.sys = (uint64_t)(info[i].cpu_ticks[1]) * multiplier;
+    cpu_info->cpu_times.idle = (uint64_t)(info[i].cpu_ticks[2]) * multiplier;
+    cpu_info->cpu_times.irq = 0;
+
+    cpu_info->model = uv__strdup(model);
+    cpu_info->speed = cpuspeed/1000000;
+  }
+  vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type);
+
+  return 0;
+}

deps/libuv/src/unix/dl.c

@@ -0,0 +1,80 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <dlfcn.h>
+#include <errno.h>
+#include <string.h>
+#include <locale.h>
+
+static int uv__dlerror(uv_lib_t* lib);
+
+
+int uv_dlopen(const char* filename, uv_lib_t* lib) {
+  dlerror(); /* Reset error status. */
+  lib->errmsg = NULL;
+  lib->handle = dlopen(filename, RTLD_LAZY);
+  return lib->handle ? 0 : uv__dlerror(lib);
+}
+
+
+void uv_dlclose(uv_lib_t* lib) {
+  uv__free(lib->errmsg);
+  lib->errmsg = NULL;
+
+  if (lib->handle) {
+    /* Ignore errors. No good way to signal them without leaking memory. */
+    dlclose(lib->handle);
+    lib->handle = NULL;
+  }
+}
+
+
+int uv_dlsym(uv_lib_t* lib, const char* name, void** ptr) {
+  dlerror(); /* Reset error status. */
+  *ptr = dlsym(lib->handle, name);
+  return uv__dlerror(lib);
+}
+
+
+const char* uv_dlerror(const uv_lib_t* lib) {
+  return lib->errmsg ? lib->errmsg : "no error";
+}
+
+
+static int uv__dlerror(uv_lib_t* lib) {
+  const char* errmsg;
+
+  uv__free(lib->errmsg);
+
+  errmsg = dlerror();
+
+  if (errmsg) {
+    lib->errmsg = uv__strdup(errmsg);
+    return -1;
+  }
+  else {
+    lib->errmsg = NULL;
+    return 0;
+  }
+}

deps/libuv/src/unix/freebsd.c

@@ -0,0 +1,282 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+
+#include <paths.h>
+#include <sys/user.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <vm/vm_param.h> /* VM_LOADAVG */
+#include <time.h>
+#include <stdlib.h>
+#include <unistd.h> /* sysconf */
+#include <fcntl.h>
+
+#ifndef CPUSTATES
+# define CPUSTATES 5U
+#endif
+#ifndef CP_USER
+# define CP_USER 0
+# define CP_NICE 1
+# define CP_SYS 2
+# define CP_IDLE 3
+# define CP_INTR 4
+#endif
+
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  return uv__kqueue_init(loop);
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+}
+
+int uv_exepath(char* buffer, size_t* size) {
+  char abspath[PATH_MAX * 2 + 1];
+  int mib[4];
+  size_t abspath_size;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC;
+  mib[2] = KERN_PROC_PATHNAME;
+  mib[3] = -1;
+
+  abspath_size = sizeof abspath;
+  if (sysctl(mib, ARRAY_SIZE(mib), abspath, &abspath_size, NULL, 0))
+    return UV__ERR(errno);
+
+  assert(abspath_size > 0);
+  abspath_size -= 1;
+  *size -= 1;
+
+  if (*size > abspath_size)
+    *size = abspath_size;
+
+  memcpy(buffer, abspath, *size);
+  buffer[*size] = '\0';
+
+  return 0;
+}
+
+uint64_t uv_get_free_memory(void) {
+  int freecount;
+  size_t size = sizeof(freecount);
+
+  if (sysctlbyname("vm.stats.vm.v_free_count", &freecount, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) freecount * sysconf(_SC_PAGESIZE);
+
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  unsigned long info;
+  int which[] = {CTL_HW, HW_PHYSMEM};
+
+  size_t size = sizeof(info);
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+void uv_loadavg(double avg[3]) {
+  struct loadavg info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_LOADAVG};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return;
+
+  avg[0] = (double) info.ldavg[0] / info.fscale;
+  avg[1] = (double) info.ldavg[1] / info.fscale;
+  avg[2] = (double) info.ldavg[2] / info.fscale;
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  struct kinfo_proc kinfo;
+  size_t page_size;
+  size_t kinfo_size;
+  int mib[4];
+
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC;
+  mib[2] = KERN_PROC_PID;
+  mib[3] = getpid();
+
+  kinfo_size = sizeof(kinfo);
+
+  if (sysctl(mib, ARRAY_SIZE(mib), &kinfo, &kinfo_size, NULL, 0))
+    return UV__ERR(errno);
+
+  page_size = getpagesize();
+
+#ifdef __DragonFly__
+  *rss = kinfo.kp_vm_rssize * page_size;
+#else
+  *rss = kinfo.ki_rssize * page_size;
+#endif
+
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  int r;
+  struct timespec sp;
+  r = clock_gettime(CLOCK_MONOTONIC, &sp);
+  if (r)
+    return UV__ERR(errno);
+
+  *uptime = sp.tv_sec;
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
+               multiplier = ((uint64_t)1000L / ticks), cpuspeed, maxcpus,
+               cur = 0;
+  uv_cpu_info_t* cpu_info;
+  const char* maxcpus_key;
+  const char* cptimes_key;
+  const char* model_key;
+  char model[512];
+  long* cp_times;
+  int numcpus;
+  size_t size;
+  int i;
+
+#if defined(__DragonFly__)
+  /* This is not quite correct but DragonFlyBSD doesn't seem to have anything
+   * comparable to kern.smp.maxcpus or kern.cp_times (kern.cp_time is a total,
+   * not per CPU). At least this stops uv_cpu_info() from failing completely.
+   */
+  maxcpus_key = "hw.ncpu";
+  cptimes_key = "kern.cp_time";
+#else
+  maxcpus_key = "kern.smp.maxcpus";
+  cptimes_key = "kern.cp_times";
+#endif
+
+#if defined(__arm__) || defined(__aarch64__)
+  /* The key hw.model and hw.clockrate are not available on FreeBSD ARM. */
+  model_key = "hw.machine";
+  cpuspeed = 0;
+#else
+  model_key = "hw.model";
+
+  size = sizeof(cpuspeed);
+  if (sysctlbyname("hw.clockrate", &cpuspeed, &size, NULL, 0))
+    return -errno;
+#endif
+
+  size = sizeof(model);
+  if (sysctlbyname(model_key, &model, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  size = sizeof(numcpus);
+  if (sysctlbyname("hw.ncpu", &numcpus, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
+  if (!(*cpu_infos))
+    return UV_ENOMEM;
+
+  *count = numcpus;
+
+  /* kern.cp_times on FreeBSD i386 gives an array up to maxcpus instead of
+   * ncpu.
+   */
+  size = sizeof(maxcpus);
+  if (sysctlbyname(maxcpus_key, &maxcpus, &size, NULL, 0)) {
+    uv__free(*cpu_infos);
+    return UV__ERR(errno);
+  }
+
+  size = maxcpus * CPUSTATES * sizeof(long);
+
+  cp_times = uv__malloc(size);
+  if (cp_times == NULL) {
+    uv__free(*cpu_infos);
+    return UV_ENOMEM;
+  }
+
+  if (sysctlbyname(cptimes_key, cp_times, &size, NULL, 0)) {
+    uv__free(cp_times);
+    uv__free(*cpu_infos);
+    return UV__ERR(errno);
+  }
+
+  for (i = 0; i < numcpus; i++) {
+    cpu_info = &(*cpu_infos)[i];
+
+    cpu_info->cpu_times.user = (uint64_t)(cp_times[CP_USER+cur]) * multiplier;
+    cpu_info->cpu_times.nice = (uint64_t)(cp_times[CP_NICE+cur]) * multiplier;
+    cpu_info->cpu_times.sys = (uint64_t)(cp_times[CP_SYS+cur]) * multiplier;
+    cpu_info->cpu_times.idle = (uint64_t)(cp_times[CP_IDLE+cur]) * multiplier;
+    cpu_info->cpu_times.irq = (uint64_t)(cp_times[CP_INTR+cur]) * multiplier;
+
+    cpu_info->model = uv__strdup(model);
+    cpu_info->speed = cpuspeed;
+
+    cur+=CPUSTATES;
+  }
+
+  uv__free(cp_times);
+  return 0;
+}
+
+
+int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
+#if __FreeBSD__ >= 11
+  return sendmmsg(fd, mmsg, vlen, /* flags */ 0);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
+#if __FreeBSD__ >= 11
+  return recvmmsg(fd, mmsg, vlen, 0 /* flags */, NULL /* timeout */);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}

deps/libuv/src/unix/fsevents.c

@@ -0,0 +1,923 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#if TARGET_OS_IPHONE || MAC_OS_X_VERSION_MAX_ALLOWED < 1070
+
+/* iOS (currently) doesn't provide the FSEvents-API (nor CoreServices) */
+/* macOS prior to 10.7 doesn't provide the full FSEvents API so use kqueue */
+
+int uv__fsevents_init(uv_fs_event_t* handle) {
+  return 0;
+}
+
+
+int uv__fsevents_close(uv_fs_event_t* handle) {
+  return 0;
+}
+
+
+void uv__fsevents_loop_delete(uv_loop_t* loop) {
+}
+
+#else /* TARGET_OS_IPHONE */
+
+#include "darwin-stub.h"
+
+#include <dlfcn.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+static const int kFSEventsModified =
+    kFSEventStreamEventFlagItemChangeOwner |
+    kFSEventStreamEventFlagItemFinderInfoMod |
+    kFSEventStreamEventFlagItemInodeMetaMod |
+    kFSEventStreamEventFlagItemModified |
+    kFSEventStreamEventFlagItemXattrMod;
+
+static const int kFSEventsRenamed =
+    kFSEventStreamEventFlagItemCreated |
+    kFSEventStreamEventFlagItemRemoved |
+    kFSEventStreamEventFlagItemRenamed;
+
+static const int kFSEventsSystem =
+    kFSEventStreamEventFlagUserDropped |
+    kFSEventStreamEventFlagKernelDropped |
+    kFSEventStreamEventFlagEventIdsWrapped |
+    kFSEventStreamEventFlagHistoryDone |
+    kFSEventStreamEventFlagMount |
+    kFSEventStreamEventFlagUnmount |
+    kFSEventStreamEventFlagRootChanged;
+
+typedef struct uv__fsevents_event_s uv__fsevents_event_t;
+typedef struct uv__cf_loop_signal_s uv__cf_loop_signal_t;
+typedef struct uv__cf_loop_state_s uv__cf_loop_state_t;
+
+enum uv__cf_loop_signal_type_e {
+  kUVCFLoopSignalRegular,
+  kUVCFLoopSignalClosing
+};
+typedef enum uv__cf_loop_signal_type_e uv__cf_loop_signal_type_t;
+
+struct uv__cf_loop_signal_s {
+  QUEUE member;
+  uv_fs_event_t* handle;
+  uv__cf_loop_signal_type_t type;
+};
+
+struct uv__fsevents_event_s {
+  QUEUE member;
+  int events;
+  char path[1];
+};
+
+struct uv__cf_loop_state_s {
+  CFRunLoopRef loop;
+  CFRunLoopSourceRef signal_source;
+  int fsevent_need_reschedule;
+  FSEventStreamRef fsevent_stream;
+  uv_sem_t fsevent_sem;
+  uv_mutex_t fsevent_mutex;
+  void* fsevent_handles[2];
+  unsigned int fsevent_handle_count;
+};
+
+/* Forward declarations */
+static void uv__cf_loop_cb(void* arg);
+static void* uv__cf_loop_runner(void* arg);
+static int uv__cf_loop_signal(uv_loop_t* loop,
+                              uv_fs_event_t* handle,
+                              uv__cf_loop_signal_type_t type);
+
+/* Lazy-loaded by uv__fsevents_global_init(). */
+static CFArrayRef (*pCFArrayCreate)(CFAllocatorRef,
+                                    const void**,
+                                    CFIndex,
+                                    const CFArrayCallBacks*);
+static void (*pCFRelease)(CFTypeRef);
+static void (*pCFRunLoopAddSource)(CFRunLoopRef,
+                                   CFRunLoopSourceRef,
+                                   CFStringRef);
+static CFRunLoopRef (*pCFRunLoopGetCurrent)(void);
+static void (*pCFRunLoopRemoveSource)(CFRunLoopRef,
+                                      CFRunLoopSourceRef,
+                                      CFStringRef);
+static void (*pCFRunLoopRun)(void);
+static CFRunLoopSourceRef (*pCFRunLoopSourceCreate)(CFAllocatorRef,
+                                                    CFIndex,
+                                                    CFRunLoopSourceContext*);
+static void (*pCFRunLoopSourceSignal)(CFRunLoopSourceRef);
+static void (*pCFRunLoopStop)(CFRunLoopRef);
+static void (*pCFRunLoopWakeUp)(CFRunLoopRef);
+static CFStringRef (*pCFStringCreateWithFileSystemRepresentation)(
+    CFAllocatorRef,
+    const char*);
+static CFStringEncoding (*pCFStringGetSystemEncoding)(void);
+static CFStringRef (*pkCFRunLoopDefaultMode);
+static FSEventStreamRef (*pFSEventStreamCreate)(CFAllocatorRef,
+                                                FSEventStreamCallback,
+                                                FSEventStreamContext*,
+                                                CFArrayRef,
+                                                FSEventStreamEventId,
+                                                CFTimeInterval,
+                                                FSEventStreamCreateFlags);
+static void (*pFSEventStreamFlushSync)(FSEventStreamRef);
+static void (*pFSEventStreamInvalidate)(FSEventStreamRef);
+static void (*pFSEventStreamRelease)(FSEventStreamRef);
+static void (*pFSEventStreamScheduleWithRunLoop)(FSEventStreamRef,
+                                                 CFRunLoopRef,
+                                                 CFStringRef);
+static int (*pFSEventStreamStart)(FSEventStreamRef);
+static void (*pFSEventStreamStop)(FSEventStreamRef);
+
+#define UV__FSEVENTS_PROCESS(handle, block)                                   \
+    do {                                                                      \
+      QUEUE events;                                                           \
+      QUEUE* q;                                                               \
+      uv__fsevents_event_t* event;                                            \
+      int err;                                                                \
+      uv_mutex_lock(&(handle)->cf_mutex);                                     \
+      /* Split-off all events and empty original queue */                     \
+      QUEUE_MOVE(&(handle)->cf_events, &events);                              \
+      /* Get error (if any) and zero original one */                          \
+      err = (handle)->cf_error;                                               \
+      (handle)->cf_error = 0;                                                 \
+      uv_mutex_unlock(&(handle)->cf_mutex);                                   \
+      /* Loop through events, deallocating each after processing */           \
+      while (!QUEUE_EMPTY(&events)) {                                         \
+        q = QUEUE_HEAD(&events);                                              \
+        event = QUEUE_DATA(q, uv__fsevents_event_t, member);                  \
+        QUEUE_REMOVE(q);                                                      \
+        /* NOTE: Checking uv__is_active() is required here, because handle    \
+         * callback may close handle and invoking it after it will lead to    \
+         * incorrect behaviour */                                             \
+        if (!uv__is_closing((handle)) && uv__is_active((handle)))             \
+          block                                                               \
+        /* Free allocated data */                                             \
+        uv__free(event);                                                      \
+      }                                                                       \
+      if (err != 0 && !uv__is_closing((handle)) && uv__is_active((handle)))   \
+        (handle)->cb((handle), NULL, 0, err);                                 \
+    } while (0)
+
+
+/* Runs in UV loop's thread, when there're events to report to handle */
+static void uv__fsevents_cb(uv_async_t* cb) {
+  uv_fs_event_t* handle;
+
+  handle = cb->data;
+
+  UV__FSEVENTS_PROCESS(handle, {
+    handle->cb(handle, event->path[0] ? event->path : NULL, event->events, 0);
+  });
+}
+
+
+/* Runs in CF thread, pushed event into handle's event list */
+static void uv__fsevents_push_event(uv_fs_event_t* handle,
+                                    QUEUE* events,
+                                    int err) {
+  assert(events != NULL || err != 0);
+  uv_mutex_lock(&handle->cf_mutex);
+
+  /* Concatenate two queues */
+  if (events != NULL)
+    QUEUE_ADD(&handle->cf_events, events);
+
+  /* Propagate error */
+  if (err != 0)
+    handle->cf_error = err;
+  uv_mutex_unlock(&handle->cf_mutex);
+
+  uv_async_send(handle->cf_cb);
+}
+
+
+/* Runs in CF thread, when there're events in FSEventStream */
+static void uv__fsevents_event_cb(const FSEventStreamRef streamRef,
+                                  void* info,
+                                  size_t numEvents,
+                                  void* eventPaths,
+                                  const FSEventStreamEventFlags eventFlags[],
+                                  const FSEventStreamEventId eventIds[]) {
+  size_t i;
+  int len;
+  char** paths;
+  char* path;
+  char* pos;
+  uv_fs_event_t* handle;
+  QUEUE* q;
+  uv_loop_t* loop;
+  uv__cf_loop_state_t* state;
+  uv__fsevents_event_t* event;
+  FSEventStreamEventFlags flags;
+  QUEUE head;
+
+  loop = info;
+  state = loop->cf_state;
+  assert(state != NULL);
+  paths = eventPaths;
+
+  /* For each handle */
+  uv_mutex_lock(&state->fsevent_mutex);
+  QUEUE_FOREACH(q, &state->fsevent_handles) {
+    handle = QUEUE_DATA(q, uv_fs_event_t, cf_member);
+    QUEUE_INIT(&head);
+
+    /* Process and filter out events */
+    for (i = 0; i < numEvents; i++) {
+      flags = eventFlags[i];
+
+      /* Ignore system events */
+      if (flags & kFSEventsSystem)
+        continue;
+
+      path = paths[i];
+      len = strlen(path);
+
+      if (handle->realpath_len == 0)
+        continue; /* This should be unreachable */
+
+      /* Filter out paths that are outside handle's request */
+      if (len < handle->realpath_len)
+        continue;
+
+      /* Make sure that realpath actually named a directory,
+       * (unless watching root, which alone keeps a trailing slash on the realpath)
+       * or that we matched the whole string */
+      if (handle->realpath_len != len &&
+          handle->realpath_len > 1 &&
+          path[handle->realpath_len] != '/')
+        continue;
+
+      if (memcmp(path, handle->realpath, handle->realpath_len) != 0)
+        continue;
+
+      if (!(handle->realpath_len == 1 && handle->realpath[0] == '/')) {
+        /* Remove common prefix, unless the watched folder is "/" */
+        path += handle->realpath_len;
+        len -= handle->realpath_len;
+
+        /* Ignore events with path equal to directory itself */
+        if (len <= 1 && (flags & kFSEventStreamEventFlagItemIsDir))
+          continue;
+
+        if (len == 0) {
+          /* Since we're using fsevents to watch the file itself,
+           * realpath == path, and we now need to get the basename of the file back
+           * (for commonality with other codepaths and platforms). */
+          while (len < handle->realpath_len && path[-1] != '/') {
+            path--;
+            len++;
+          }
+          /* Created and Removed seem to be always set, but don't make sense */
+          flags &= ~kFSEventsRenamed;
+        } else {
+          /* Skip forward slash */
+          path++;
+          len--;
+        }
+      }
+
+      /* Do not emit events from subdirectories (without option set) */
+      if ((handle->cf_flags & UV_FS_EVENT_RECURSIVE) == 0 && *path != '\0') {
+        pos = strchr(path + 1, '/');
+        if (pos != NULL)
+          continue;
+      }
+
+      event = uv__malloc(sizeof(*event) + len);
+      if (event == NULL)
+        break;
+
+      memset(event, 0, sizeof(*event));
+      memcpy(event->path, path, len + 1);
+      event->events = UV_RENAME;
+
+      if (0 == (flags & kFSEventsRenamed)) {
+        if (0 != (flags & kFSEventsModified) ||
+            0 == (flags & kFSEventStreamEventFlagItemIsDir))
+          event->events = UV_CHANGE;
+      }
+
+      QUEUE_INSERT_TAIL(&head, &event->member);
+    }
+
+    if (!QUEUE_EMPTY(&head))
+      uv__fsevents_push_event(handle, &head, 0);
+  }
+  uv_mutex_unlock(&state->fsevent_mutex);
+}
+
+
+/* Runs in CF thread */
+static int uv__fsevents_create_stream(uv_loop_t* loop, CFArrayRef paths) {
+  uv__cf_loop_state_t* state;
+  FSEventStreamContext ctx;
+  FSEventStreamRef ref;
+  CFAbsoluteTime latency;
+  FSEventStreamCreateFlags flags;
+
+  /* Initialize context */
+  memset(&ctx, 0, sizeof(ctx));
+  ctx.info = loop;
+
+  latency = 0.05;
+
+  /* Explanation of selected flags:
+   * 1. NoDefer - without this flag, events that are happening continuously
+   *    (i.e. each event is happening after time interval less than `latency`,
+   *    counted from previous event), will be deferred and passed to callback
+   *    once they'll either fill whole OS buffer, or when this continuous stream
+   *    will stop (i.e. there'll be delay between events, bigger than
+   *    `latency`).
+   *    Specifying this flag will invoke callback after `latency` time passed
+   *    since event.
+   * 2. FileEvents - fire callback for file changes too (by default it is firing
+   *    it only for directory changes).
+   */
+  flags = kFSEventStreamCreateFlagNoDefer | kFSEventStreamCreateFlagFileEvents;
+
+  /*
+   * NOTE: It might sound like a good idea to remember last seen StreamEventId,
+   * but in reality one dir might have last StreamEventId less than, the other,
+   * that is being watched now. Which will cause FSEventStream API to report
+   * changes to files from the past.
+   */
+  ref = pFSEventStreamCreate(NULL,
+                             &uv__fsevents_event_cb,
+                             &ctx,
+                             paths,
+                             kFSEventStreamEventIdSinceNow,
+                             latency,
+                             flags);
+  assert(ref != NULL);
+
+  state = loop->cf_state;
+  pFSEventStreamScheduleWithRunLoop(ref,
+                                    state->loop,
+                                    *pkCFRunLoopDefaultMode);
+  if (!pFSEventStreamStart(ref)) {
+    pFSEventStreamInvalidate(ref);
+    pFSEventStreamRelease(ref);
+    return UV_EMFILE;
+  }
+
+  state->fsevent_stream = ref;
+  return 0;
+}
+
+
+/* Runs in CF thread */
+static void uv__fsevents_destroy_stream(uv_loop_t* loop) {
+  uv__cf_loop_state_t* state;
+
+  state = loop->cf_state;
+
+  if (state->fsevent_stream == NULL)
+    return;
+
+  /* Stop emitting events */
+  pFSEventStreamStop(state->fsevent_stream);
+
+  /* Release stream */
+  pFSEventStreamInvalidate(state->fsevent_stream);
+  pFSEventStreamRelease(state->fsevent_stream);
+  state->fsevent_stream = NULL;
+}
+
+
+/* Runs in CF thread, when there're new fsevent handles to add to stream */
+static void uv__fsevents_reschedule(uv_fs_event_t* handle,
+                                    uv__cf_loop_signal_type_t type) {
+  uv__cf_loop_state_t* state;
+  QUEUE* q;
+  uv_fs_event_t* curr;
+  CFArrayRef cf_paths;
+  CFStringRef* paths;
+  unsigned int i;
+  int err;
+  unsigned int path_count;
+
+  state = handle->loop->cf_state;
+  paths = NULL;
+  cf_paths = NULL;
+  err = 0;
+  /* NOTE: `i` is used in deallocation loop below */
+  i = 0;
+
+  /* Optimization to prevent O(n^2) time spent when starting to watch
+   * many files simultaneously
+   */
+  uv_mutex_lock(&state->fsevent_mutex);
+  if (state->fsevent_need_reschedule == 0) {
+    uv_mutex_unlock(&state->fsevent_mutex);
+    goto final;
+  }
+  state->fsevent_need_reschedule = 0;
+  uv_mutex_unlock(&state->fsevent_mutex);
+
+  /* Destroy previous FSEventStream */
+  uv__fsevents_destroy_stream(handle->loop);
+
+  /* Any failure below will be a memory failure */
+  err = UV_ENOMEM;
+
+  /* Create list of all watched paths */
+  uv_mutex_lock(&state->fsevent_mutex);
+  path_count = state->fsevent_handle_count;
+  if (path_count != 0) {
+    paths = uv__malloc(sizeof(*paths) * path_count);
+    if (paths == NULL) {
+      uv_mutex_unlock(&state->fsevent_mutex);
+      goto final;
+    }
+
+    q = &state->fsevent_handles;
+    for (; i < path_count; i++) {
+      q = QUEUE_NEXT(q);
+      assert(q != &state->fsevent_handles);
+      curr = QUEUE_DATA(q, uv_fs_event_t, cf_member);
+
+      assert(curr->realpath != NULL);
+      paths[i] =
+          pCFStringCreateWithFileSystemRepresentation(NULL, curr->realpath);
+      if (paths[i] == NULL) {
+        uv_mutex_unlock(&state->fsevent_mutex);
+        goto final;
+      }
+    }
+  }
+  uv_mutex_unlock(&state->fsevent_mutex);
+  err = 0;
+
+  if (path_count != 0) {
+    /* Create new FSEventStream */
+    cf_paths = pCFArrayCreate(NULL, (const void**) paths, path_count, NULL);
+    if (cf_paths == NULL) {
+      err = UV_ENOMEM;
+      goto final;
+    }
+    err = uv__fsevents_create_stream(handle->loop, cf_paths);
+  }
+
+final:
+  /* Deallocate all paths in case of failure */
+  if (err != 0) {
+    if (cf_paths == NULL) {
+      while (i != 0)
+        pCFRelease(paths[--i]);
+      uv__free(paths);
+    } else {
+      /* CFArray takes ownership of both strings and original C-array */
+      pCFRelease(cf_paths);
+    }
+
+    /* Broadcast error to all handles */
+    uv_mutex_lock(&state->fsevent_mutex);
+    QUEUE_FOREACH(q, &state->fsevent_handles) {
+      curr = QUEUE_DATA(q, uv_fs_event_t, cf_member);
+      uv__fsevents_push_event(curr, NULL, err);
+    }
+    uv_mutex_unlock(&state->fsevent_mutex);
+  }
+
+  /*
+   * Main thread will block until the removal of handle from the list,
+   * we must tell it when we're ready.
+   *
+   * NOTE: This is coupled with `uv_sem_wait()` in `uv__fsevents_close`
+   */
+  if (type == kUVCFLoopSignalClosing)
+    uv_sem_post(&state->fsevent_sem);
+}
+
+
+static int uv__fsevents_global_init(void) {
+  static pthread_mutex_t global_init_mutex = PTHREAD_MUTEX_INITIALIZER;
+  static void* core_foundation_handle;
+  static void* core_services_handle;
+  int err;
+
+  err = 0;
+  pthread_mutex_lock(&global_init_mutex);
+  if (core_foundation_handle != NULL)
+    goto out;
+
+  /* The libraries are never unloaded because we currently don't have a good
+   * mechanism for keeping a reference count. It's unlikely to be an issue
+   * but if it ever becomes one, we can turn the dynamic library handles into
+   * per-event loop properties and have the dynamic linker keep track for us.
+   */
+  err = UV_ENOSYS;
+  core_foundation_handle = dlopen("/System/Library/Frameworks/"
+                                  "CoreFoundation.framework/"
+                                  "Versions/A/CoreFoundation",
+                                  RTLD_LAZY | RTLD_LOCAL);
+  if (core_foundation_handle == NULL)
+    goto out;
+
+  core_services_handle = dlopen("/System/Library/Frameworks/"
+                                "CoreServices.framework/"
+                                "Versions/A/CoreServices",
+                                RTLD_LAZY | RTLD_LOCAL);
+  if (core_services_handle == NULL)
+    goto out;
+
+  err = UV_ENOENT;
+#define V(handle, symbol)                                                     \
+  do {                                                                        \
+    *(void **)(&p ## symbol) = dlsym((handle), #symbol);                      \
+    if (p ## symbol == NULL)                                                  \
+      goto out;                                                               \
+  }                                                                           \
+  while (0)
+  V(core_foundation_handle, CFArrayCreate);
+  V(core_foundation_handle, CFRelease);
+  V(core_foundation_handle, CFRunLoopAddSource);
+  V(core_foundation_handle, CFRunLoopGetCurrent);
+  V(core_foundation_handle, CFRunLoopRemoveSource);
+  V(core_foundation_handle, CFRunLoopRun);
+  V(core_foundation_handle, CFRunLoopSourceCreate);
+  V(core_foundation_handle, CFRunLoopSourceSignal);
+  V(core_foundation_handle, CFRunLoopStop);
+  V(core_foundation_handle, CFRunLoopWakeUp);
+  V(core_foundation_handle, CFStringCreateWithFileSystemRepresentation);
+  V(core_foundation_handle, CFStringGetSystemEncoding);
+  V(core_foundation_handle, kCFRunLoopDefaultMode);
+  V(core_services_handle, FSEventStreamCreate);
+  V(core_services_handle, FSEventStreamFlushSync);
+  V(core_services_handle, FSEventStreamInvalidate);
+  V(core_services_handle, FSEventStreamRelease);
+  V(core_services_handle, FSEventStreamScheduleWithRunLoop);
+  V(core_services_handle, FSEventStreamStart);
+  V(core_services_handle, FSEventStreamStop);
+#undef V
+  err = 0;
+
+out:
+  if (err && core_services_handle != NULL) {
+    dlclose(core_services_handle);
+    core_services_handle = NULL;
+  }
+
+  if (err && core_foundation_handle != NULL) {
+    dlclose(core_foundation_handle);
+    core_foundation_handle = NULL;
+  }
+
+  pthread_mutex_unlock(&global_init_mutex);
+  return err;
+}
+
+
+/* Runs in UV loop */
+static int uv__fsevents_loop_init(uv_loop_t* loop) {
+  CFRunLoopSourceContext ctx;
+  uv__cf_loop_state_t* state;
+  pthread_attr_t attr_storage;
+  pthread_attr_t* attr;
+  int err;
+
+  if (loop->cf_state != NULL)
+    return 0;
+
+  err = uv__fsevents_global_init();
+  if (err)
+    return err;
+
+  state = uv__calloc(1, sizeof(*state));
+  if (state == NULL)
+    return UV_ENOMEM;
+
+  err = uv_mutex_init(&loop->cf_mutex);
+  if (err)
+    goto fail_mutex_init;
+
+  err = uv_sem_init(&loop->cf_sem, 0);
+  if (err)
+    goto fail_sem_init;
+
+  QUEUE_INIT(&loop->cf_signals);
+
+  err = uv_sem_init(&state->fsevent_sem, 0);
+  if (err)
+    goto fail_fsevent_sem_init;
+
+  err = uv_mutex_init(&state->fsevent_mutex);
+  if (err)
+    goto fail_fsevent_mutex_init;
+
+  QUEUE_INIT(&state->fsevent_handles);
+  state->fsevent_need_reschedule = 0;
+  state->fsevent_handle_count = 0;
+
+  memset(&ctx, 0, sizeof(ctx));
+  ctx.info = loop;
+  ctx.perform = uv__cf_loop_cb;
+  state->signal_source = pCFRunLoopSourceCreate(NULL, 0, &ctx);
+  if (state->signal_source == NULL) {
+    err = UV_ENOMEM;
+    goto fail_signal_source_create;
+  }
+
+  /* In the unlikely event that pthread_attr_init() fails, create the thread
+   * with the default stack size. We'll use a little more address space but
+   * that in itself is not a fatal error.
+   */
+  attr = &attr_storage;
+  if (pthread_attr_init(attr))
+    attr = NULL;
+
+  if (attr != NULL)
+    if (pthread_attr_setstacksize(attr, 4 * PTHREAD_STACK_MIN))
+      abort();
+
+  loop->cf_state = state;
+
+  /* uv_thread_t is an alias for pthread_t. */
+  err = UV__ERR(pthread_create(&loop->cf_thread, attr, uv__cf_loop_runner, loop));
+
+  if (attr != NULL)
+    pthread_attr_destroy(attr);
+
+  if (err)
+    goto fail_thread_create;
+
+  /* Synchronize threads */
+  uv_sem_wait(&loop->cf_sem);
+  return 0;
+
+fail_thread_create:
+  loop->cf_state = NULL;
+
+fail_signal_source_create:
+  uv_mutex_destroy(&state->fsevent_mutex);
+
+fail_fsevent_mutex_init:
+  uv_sem_destroy(&state->fsevent_sem);
+
+fail_fsevent_sem_init:
+  uv_sem_destroy(&loop->cf_sem);
+
+fail_sem_init:
+  uv_mutex_destroy(&loop->cf_mutex);
+
+fail_mutex_init:
+  uv__free(state);
+  return err;
+}
+
+
+/* Runs in UV loop */
+void uv__fsevents_loop_delete(uv_loop_t* loop) {
+  uv__cf_loop_signal_t* s;
+  uv__cf_loop_state_t* state;
+  QUEUE* q;
+
+  if (loop->cf_state == NULL)
+    return;
+
+  if (uv__cf_loop_signal(loop, NULL, kUVCFLoopSignalRegular) != 0)
+    abort();
+
+  uv_thread_join(&loop->cf_thread);
+  uv_sem_destroy(&loop->cf_sem);
+  uv_mutex_destroy(&loop->cf_mutex);
+
+  /* Free any remaining data */
+  while (!QUEUE_EMPTY(&loop->cf_signals)) {
+    q = QUEUE_HEAD(&loop->cf_signals);
+    s = QUEUE_DATA(q, uv__cf_loop_signal_t, member);
+    QUEUE_REMOVE(q);
+    uv__free(s);
+  }
+
+  /* Destroy state */
+  state = loop->cf_state;
+  uv_sem_destroy(&state->fsevent_sem);
+  uv_mutex_destroy(&state->fsevent_mutex);
+  pCFRelease(state->signal_source);
+  uv__free(state);
+  loop->cf_state = NULL;
+}
+
+
+/* Runs in CF thread. This is the CF loop's body */
+static void* uv__cf_loop_runner(void* arg) {
+  uv_loop_t* loop;
+  uv__cf_loop_state_t* state;
+
+  loop = arg;
+  state = loop->cf_state;
+  state->loop = pCFRunLoopGetCurrent();
+
+  pCFRunLoopAddSource(state->loop,
+                      state->signal_source,
+                      *pkCFRunLoopDefaultMode);
+
+  uv_sem_post(&loop->cf_sem);
+
+  pCFRunLoopRun();
+  pCFRunLoopRemoveSource(state->loop,
+                         state->signal_source,
+                         *pkCFRunLoopDefaultMode);
+
+  state->loop = NULL;
+
+  return NULL;
+}
+
+
+/* Runs in CF thread, executed after `uv__cf_loop_signal()` */
+static void uv__cf_loop_cb(void* arg) {
+  uv_loop_t* loop;
+  uv__cf_loop_state_t* state;
+  QUEUE* item;
+  QUEUE split_head;
+  uv__cf_loop_signal_t* s;
+
+  loop = arg;
+  state = loop->cf_state;
+
+  uv_mutex_lock(&loop->cf_mutex);
+  QUEUE_MOVE(&loop->cf_signals, &split_head);
+  uv_mutex_unlock(&loop->cf_mutex);
+
+  while (!QUEUE_EMPTY(&split_head)) {
+    item = QUEUE_HEAD(&split_head);
+    QUEUE_REMOVE(item);
+
+    s = QUEUE_DATA(item, uv__cf_loop_signal_t, member);
+
+    /* This was a termination signal */
+    if (s->handle == NULL)
+      pCFRunLoopStop(state->loop);
+    else
+      uv__fsevents_reschedule(s->handle, s->type);
+
+    uv__free(s);
+  }
+}
+
+
+/* Runs in UV loop to notify CF thread */
+int uv__cf_loop_signal(uv_loop_t* loop,
+                       uv_fs_event_t* handle,
+                       uv__cf_loop_signal_type_t type) {
+  uv__cf_loop_signal_t* item;
+  uv__cf_loop_state_t* state;
+
+  item = uv__malloc(sizeof(*item));
+  if (item == NULL)
+    return UV_ENOMEM;
+
+  item->handle = handle;
+  item->type = type;
+
+  uv_mutex_lock(&loop->cf_mutex);
+  QUEUE_INSERT_TAIL(&loop->cf_signals, &item->member);
+
+  state = loop->cf_state;
+  assert(state != NULL);
+  pCFRunLoopSourceSignal(state->signal_source);
+  pCFRunLoopWakeUp(state->loop);
+
+  uv_mutex_unlock(&loop->cf_mutex);
+
+  return 0;
+}
+
+
+/* Runs in UV loop to initialize handle */
+int uv__fsevents_init(uv_fs_event_t* handle) {
+  int err;
+  uv__cf_loop_state_t* state;
+
+  err = uv__fsevents_loop_init(handle->loop);
+  if (err)
+    return err;
+
+  /* Get absolute path to file */
+  handle->realpath = realpath(handle->path, NULL);
+  if (handle->realpath == NULL)
+    return UV__ERR(errno);
+  handle->realpath_len = strlen(handle->realpath);
+
+  /* Initialize event queue */
+  QUEUE_INIT(&handle->cf_events);
+  handle->cf_error = 0;
+
+  /*
+   * Events will occur in other thread.
+   * Initialize callback for getting them back into event loop's thread
+   */
+  handle->cf_cb = uv__malloc(sizeof(*handle->cf_cb));
+  if (handle->cf_cb == NULL) {
+    err = UV_ENOMEM;
+    goto fail_cf_cb_malloc;
+  }
+
+  handle->cf_cb->data = handle;
+  uv_async_init(handle->loop, handle->cf_cb, uv__fsevents_cb);
+  handle->cf_cb->flags |= UV_HANDLE_INTERNAL;
+  uv_unref((uv_handle_t*) handle->cf_cb);
+
+  err = uv_mutex_init(&handle->cf_mutex);
+  if (err)
+    goto fail_cf_mutex_init;
+
+  /* Insert handle into the list */
+  state = handle->loop->cf_state;
+  uv_mutex_lock(&state->fsevent_mutex);
+  QUEUE_INSERT_TAIL(&state->fsevent_handles, &handle->cf_member);
+  state->fsevent_handle_count++;
+  state->fsevent_need_reschedule = 1;
+  uv_mutex_unlock(&state->fsevent_mutex);
+
+  /* Reschedule FSEventStream */
+  assert(handle != NULL);
+  err = uv__cf_loop_signal(handle->loop, handle, kUVCFLoopSignalRegular);
+  if (err)
+    goto fail_loop_signal;
+
+  return 0;
+
+fail_loop_signal:
+  uv_mutex_destroy(&handle->cf_mutex);
+
+fail_cf_mutex_init:
+  uv__free(handle->cf_cb);
+  handle->cf_cb = NULL;
+
+fail_cf_cb_malloc:
+  uv__free(handle->realpath);
+  handle->realpath = NULL;
+  handle->realpath_len = 0;
+
+  return err;
+}
+
+
+/* Runs in UV loop to de-initialize handle */
+int uv__fsevents_close(uv_fs_event_t* handle) {
+  int err;
+  uv__cf_loop_state_t* state;
+
+  if (handle->cf_cb == NULL)
+    return UV_EINVAL;
+
+  /* Remove handle from  the list */
+  state = handle->loop->cf_state;
+  uv_mutex_lock(&state->fsevent_mutex);
+  QUEUE_REMOVE(&handle->cf_member);
+  state->fsevent_handle_count--;
+  state->fsevent_need_reschedule = 1;
+  uv_mutex_unlock(&state->fsevent_mutex);
+
+  /* Reschedule FSEventStream */
+  assert(handle != NULL);
+  err = uv__cf_loop_signal(handle->loop, handle, kUVCFLoopSignalClosing);
+  if (err)
+    return UV__ERR(err);
+
+  /* Wait for deinitialization */
+  uv_sem_wait(&state->fsevent_sem);
+
+  uv_close((uv_handle_t*) handle->cf_cb, (uv_close_cb) uv__free);
+  handle->cf_cb = NULL;
+
+  /* Free data in queue */
+  UV__FSEVENTS_PROCESS(handle, {
+    /* NOP */
+  });
+
+  uv_mutex_destroy(&handle->cf_mutex);
+  uv__free(handle->realpath);
+  handle->realpath = NULL;
+  handle->realpath_len = 0;
+
+  return 0;
+}
+
+#endif /* TARGET_OS_IPHONE */

deps/libuv/src/unix/getaddrinfo.c

@@ -0,0 +1,255 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/* Expose glibc-specific EAI_* error codes. Needs to be defined before we
+ * include any headers.
+ */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+
+#include "uv.h"
+#include "internal.h"
+#include "idna.h"
+
+#include <errno.h>
+#include <stddef.h> /* NULL */
+#include <stdlib.h>
+#include <string.h>
+#include <net/if.h> /* if_indextoname() */
+
+/* EAI_* constants. */
+#include <netdb.h>
+
+
+int uv__getaddrinfo_translate_error(int sys_err) {
+  switch (sys_err) {
+  case 0: return 0;
+#if defined(EAI_ADDRFAMILY)
+  case EAI_ADDRFAMILY: return UV_EAI_ADDRFAMILY;
+#endif
+#if defined(EAI_AGAIN)
+  case EAI_AGAIN: return UV_EAI_AGAIN;
+#endif
+#if defined(EAI_BADFLAGS)
+  case EAI_BADFLAGS: return UV_EAI_BADFLAGS;
+#endif
+#if defined(EAI_BADHINTS)
+  case EAI_BADHINTS: return UV_EAI_BADHINTS;
+#endif
+#if defined(EAI_CANCELED)
+  case EAI_CANCELED: return UV_EAI_CANCELED;
+#endif
+#if defined(EAI_FAIL)
+  case EAI_FAIL: return UV_EAI_FAIL;
+#endif
+#if defined(EAI_FAMILY)
+  case EAI_FAMILY: return UV_EAI_FAMILY;
+#endif
+#if defined(EAI_MEMORY)
+  case EAI_MEMORY: return UV_EAI_MEMORY;
+#endif
+#if defined(EAI_NODATA)
+  case EAI_NODATA: return UV_EAI_NODATA;
+#endif
+#if defined(EAI_NONAME)
+# if !defined(EAI_NODATA) || EAI_NODATA != EAI_NONAME
+  case EAI_NONAME: return UV_EAI_NONAME;
+# endif
+#endif
+#if defined(EAI_OVERFLOW)
+  case EAI_OVERFLOW: return UV_EAI_OVERFLOW;
+#endif
+#if defined(EAI_PROTOCOL)
+  case EAI_PROTOCOL: return UV_EAI_PROTOCOL;
+#endif
+#if defined(EAI_SERVICE)
+  case EAI_SERVICE: return UV_EAI_SERVICE;
+#endif
+#if defined(EAI_SOCKTYPE)
+  case EAI_SOCKTYPE: return UV_EAI_SOCKTYPE;
+#endif
+#if defined(EAI_SYSTEM)
+  case EAI_SYSTEM: return UV__ERR(errno);
+#endif
+  }
+  assert(!"unknown EAI_* error code");
+  abort();
+#ifndef __SUNPRO_C
+  return 0;  /* Pacify compiler. */
+#endif
+}
+
+
+static void uv__getaddrinfo_work(struct uv__work* w) {
+  uv_getaddrinfo_t* req;
+  int err;
+
+  req = container_of(w, uv_getaddrinfo_t, work_req);
+  err = getaddrinfo(req->hostname, req->service, req->hints, &req->addrinfo);
+  req->retcode = uv__getaddrinfo_translate_error(err);
+}
+
+
+static void uv__getaddrinfo_done(struct uv__work* w, int status) {
+  uv_getaddrinfo_t* req;
+
+  req = container_of(w, uv_getaddrinfo_t, work_req);
+  uv__req_unregister(req->loop, req);
+
+  /* See initialization in uv_getaddrinfo(). */
+  if (req->hints)
+    uv__free(req->hints);
+  else if (req->service)
+    uv__free(req->service);
+  else if (req->hostname)
+    uv__free(req->hostname);
+  else
+    assert(0);
+
+  req->hints = NULL;
+  req->service = NULL;
+  req->hostname = NULL;
+
+  if (status == UV_ECANCELED) {
+    assert(req->retcode == 0);
+    req->retcode = UV_EAI_CANCELED;
+  }
+
+  if (req->cb)
+    req->cb(req, req->retcode, req->addrinfo);
+}
+
+
+int uv_getaddrinfo(uv_loop_t* loop,
+                   uv_getaddrinfo_t* req,
+                   uv_getaddrinfo_cb cb,
+                   const char* hostname,
+                   const char* service,
+                   const struct addrinfo* hints) {
+  char hostname_ascii[256];
+  size_t hostname_len;
+  size_t service_len;
+  size_t hints_len;
+  size_t len;
+  char* buf;
+  long rc;
+
+  if (req == NULL || (hostname == NULL && service == NULL))
+    return UV_EINVAL;
+
+  /* FIXME(bnoordhuis) IDNA does not seem to work z/OS,
+   * probably because it uses EBCDIC rather than ASCII.
+   */
+#ifdef __MVS__
+  (void) &hostname_ascii;
+#else
+  if (hostname != NULL) {
+    rc = uv__idna_toascii(hostname,
+                          hostname + strlen(hostname),
+                          hostname_ascii,
+                          hostname_ascii + sizeof(hostname_ascii));
+    if (rc < 0)
+      return rc;
+    hostname = hostname_ascii;
+  }
+#endif
+
+  hostname_len = hostname ? strlen(hostname) + 1 : 0;
+  service_len = service ? strlen(service) + 1 : 0;
+  hints_len = hints ? sizeof(*hints) : 0;
+  buf = uv__malloc(hostname_len + service_len + hints_len);
+
+  if (buf == NULL)
+    return UV_ENOMEM;
+
+  uv__req_init(loop, req, UV_GETADDRINFO);
+  req->loop = loop;
+  req->cb = cb;
+  req->addrinfo = NULL;
+  req->hints = NULL;
+  req->service = NULL;
+  req->hostname = NULL;
+  req->retcode = 0;
+
+  /* order matters, see uv_getaddrinfo_done() */
+  len = 0;
+
+  if (hints) {
+    req->hints = memcpy(buf + len, hints, sizeof(*hints));
+    len += sizeof(*hints);
+  }
+
+  if (service) {
+    req->service = memcpy(buf + len, service, service_len);
+    len += service_len;
+  }
+
+  if (hostname)
+    req->hostname = memcpy(buf + len, hostname, hostname_len);
+
+  if (cb) {
+    uv__work_submit(loop,
+                    &req->work_req,
+                    UV__WORK_SLOW_IO,
+                    uv__getaddrinfo_work,
+                    uv__getaddrinfo_done);
+    return 0;
+  } else {
+    uv__getaddrinfo_work(&req->work_req);
+    uv__getaddrinfo_done(&req->work_req, 0);
+    return req->retcode;
+  }
+}
+
+
+void uv_freeaddrinfo(struct addrinfo* ai) {
+  if (ai)
+    freeaddrinfo(ai);
+}
+
+
+int uv_if_indextoname(unsigned int ifindex, char* buffer, size_t* size) {
+  char ifname_buf[UV_IF_NAMESIZE];
+  size_t len;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  if (if_indextoname(ifindex, ifname_buf) == NULL)
+    return UV__ERR(errno);
+
+  len = strnlen(ifname_buf, sizeof(ifname_buf));
+
+  if (*size <= len) {
+    *size = len + 1;
+    return UV_ENOBUFS;
+  }
+
+  memcpy(buffer, ifname_buf, len);
+  buffer[len] = '\0';
+  *size = len;
+
+  return 0;
+}
+
+int uv_if_indextoiid(unsigned int ifindex, char* buffer, size_t* size) {
+  return uv_if_indextoname(ifindex, buffer, size);
+}

deps/libuv/src/unix/getnameinfo.c

@@ -0,0 +1,121 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "uv.h"
+#include "internal.h"
+
+
+static void uv__getnameinfo_work(struct uv__work* w) {
+  uv_getnameinfo_t* req;
+  int err;
+  socklen_t salen;
+
+  req = container_of(w, uv_getnameinfo_t, work_req);
+
+  if (req->storage.ss_family == AF_INET)
+    salen = sizeof(struct sockaddr_in);
+  else if (req->storage.ss_family == AF_INET6)
+    salen = sizeof(struct sockaddr_in6);
+  else
+    abort();
+
+  err = getnameinfo((struct sockaddr*) &req->storage,
+                    salen,
+                    req->host,
+                    sizeof(req->host),
+                    req->service,
+                    sizeof(req->service),
+                    req->flags);
+  req->retcode = uv__getaddrinfo_translate_error(err);
+}
+
+static void uv__getnameinfo_done(struct uv__work* w, int status) {
+  uv_getnameinfo_t* req;
+  char* host;
+  char* service;
+
+  req = container_of(w, uv_getnameinfo_t, work_req);
+  uv__req_unregister(req->loop, req);
+  host = service = NULL;
+
+  if (status == UV_ECANCELED) {
+    assert(req->retcode == 0);
+    req->retcode = UV_EAI_CANCELED;
+  } else if (req->retcode == 0) {
+    host = req->host;
+    service = req->service;
+  }
+
+  if (req->getnameinfo_cb)
+    req->getnameinfo_cb(req, req->retcode, host, service);
+}
+
+/*
+* Entry point for getnameinfo
+* return 0 if a callback will be made
+* return error code if validation fails
+*/
+int uv_getnameinfo(uv_loop_t* loop,
+                   uv_getnameinfo_t* req,
+                   uv_getnameinfo_cb getnameinfo_cb,
+                   const struct sockaddr* addr,
+                   int flags) {
+  if (req == NULL || addr == NULL)
+    return UV_EINVAL;
+
+  if (addr->sa_family == AF_INET) {
+    memcpy(&req->storage,
+           addr,
+           sizeof(struct sockaddr_in));
+  } else if (addr->sa_family == AF_INET6) {
+    memcpy(&req->storage,
+           addr,
+           sizeof(struct sockaddr_in6));
+  } else {
+    return UV_EINVAL;
+  }
+
+  uv__req_init(loop, (uv_req_t*)req, UV_GETNAMEINFO);
+
+  req->getnameinfo_cb = getnameinfo_cb;
+  req->flags = flags;
+  req->type = UV_GETNAMEINFO;
+  req->loop = loop;
+  req->retcode = 0;
+
+  if (getnameinfo_cb) {
+    uv__work_submit(loop,
+                    &req->work_req,
+                    UV__WORK_SLOW_IO,
+                    uv__getnameinfo_work,
+                    uv__getnameinfo_done);
+    return 0;
+  } else {
+    uv__getnameinfo_work(&req->work_req);
+    uv__getnameinfo_done(&req->work_req, 0);
+    return req->retcode;
+  }
+}

deps/libuv/src/unix/haiku.c

@@ -0,0 +1,167 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <FindDirectory.h> /* find_path() */
+#include <OS.h>
+
+
+void uv_loadavg(double avg[3]) {
+  avg[0] = 0;
+  avg[1] = 0;
+  avg[2] = 0;
+}
+
+
+int uv_exepath(char* buffer, size_t* size) {
+  char abspath[B_PATH_NAME_LENGTH];
+  status_t status;
+  ssize_t abspath_len;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  status = find_path(B_APP_IMAGE_SYMBOL, B_FIND_PATH_IMAGE_PATH, NULL, abspath,
+                     sizeof(abspath));
+  if (status != B_OK)
+    return UV__ERR(status);
+
+  abspath_len = uv__strscpy(buffer, abspath, *size);
+  *size -= 1;
+  if (abspath_len >= 0 && *size > (size_t)abspath_len)
+    *size = (size_t)abspath_len;
+
+  return 0;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  status_t status;
+  system_info sinfo;
+
+  status = get_system_info(&sinfo);
+  if (status != B_OK)
+    return 0;
+
+  return (sinfo.max_pages - sinfo.used_pages) * B_PAGE_SIZE;
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  status_t status;
+  system_info sinfo;
+
+  status = get_system_info(&sinfo);
+  if (status != B_OK)
+    return 0;
+
+  return sinfo.max_pages * B_PAGE_SIZE;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  area_info area;
+  ssize_t cookie;
+  status_t status;
+  thread_info thread;
+
+  status = get_thread_info(find_thread(NULL), &thread);
+  if (status != B_OK)
+    return UV__ERR(status);
+
+  cookie = 0;
+  *rss = 0;
+  while (get_next_area_info(thread.team, &cookie, &area) == B_OK)
+    *rss += area.ram_size;
+
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  /* system_time() returns time since booting in microseconds */
+  *uptime = (double)system_time() / 1000000;
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  cpu_topology_node_info* topology_infos;
+  int i;
+  status_t status;
+  system_info system;
+  uint32_t topology_count;
+  uint64_t cpuspeed;
+  uv_cpu_info_t* cpu_info;
+
+  if (cpu_infos == NULL || count == NULL)
+    return UV_EINVAL;
+
+  status = get_cpu_topology_info(NULL, &topology_count);
+  if (status != B_OK)
+    return UV__ERR(status);
+
+  topology_infos = uv__malloc(topology_count * sizeof(*topology_infos));
+  if (topology_infos == NULL)
+    return UV_ENOMEM;
+
+  status = get_cpu_topology_info(topology_infos, &topology_count);
+  if (status != B_OK) {
+    uv__free(topology_infos);
+    return UV__ERR(status);
+  }
+
+  cpuspeed = 0;
+  for (i = 0; i < (int)topology_count; i++) {
+    if (topology_infos[i].type == B_TOPOLOGY_CORE) {
+      cpuspeed = topology_infos[i].data.core.default_frequency;
+      break;
+    }
+  }
+
+  uv__free(topology_infos);
+
+  status = get_system_info(&system);
+  if (status != B_OK)
+    return UV__ERR(status);
+
+  *cpu_infos = uv__calloc(system.cpu_count, sizeof(**cpu_infos));
+  if (*cpu_infos == NULL)
+    return UV_ENOMEM;
+
+  /* CPU time and model are not exposed by Haiku. */
+  cpu_info = *cpu_infos;
+  for (i = 0; i < (int)system.cpu_count; i++) {
+    cpu_info->model = uv__strdup("unknown");
+    cpu_info->speed = (int)(cpuspeed / 1000000);
+    cpu_info++;
+  }
+  *count = system.cpu_count;
+
+  return 0;
+}

deps/libuv/src/unix/ibmi.c

@@ -0,0 +1,501 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utmp.h>
+#include <libgen.h>
+
+#include <sys/protosw.h>
+#include <procinfo.h>
+#include <sys/proc.h>
+#include <sys/procfs.h>
+
+#include <ctype.h>
+
+#include <sys/mntctl.h>
+#include <sys/vmount.h>
+#include <limits.h>
+#include <strings.h>
+#include <sys/vnode.h>
+
+#include <as400_protos.h>
+#include <as400_types.h>
+
+char* original_exepath = NULL;
+uv_mutex_t process_title_mutex;
+uv_once_t process_title_mutex_once = UV_ONCE_INIT;
+
+typedef struct {
+  int bytes_available;
+  int bytes_returned;
+  char current_date_and_time[8];
+  char system_name[8];
+  char elapsed_time[6];
+  char restricted_state_flag;
+  char reserved;
+  int percent_processing_unit_used;
+  int jobs_in_system;
+  int percent_permanent_addresses;
+  int percent_temporary_addresses;
+  int system_asp;
+  int percent_system_asp_used;
+  int total_auxiliary_storage;
+  int current_unprotected_storage_used;
+  int maximum_unprotected_storage_used;
+  int percent_db_capability;
+  int main_storage_size;
+  int number_of_partitions;
+  int partition_identifier;
+  int reserved1;
+  int current_processing_capacity;
+  char processor_sharing_attribute;
+  char reserved2[3];
+  int number_of_processors;
+  int active_jobs_in_system;
+  int active_threads_in_system;
+  int maximum_jobs_in_system;
+  int percent_temporary_256mb_segments_used;
+  int percent_temporary_4gb_segments_used;
+  int percent_permanent_256mb_segments_used;
+  int percent_permanent_4gb_segments_used;
+  int percent_current_interactive_performance;
+  int percent_uncapped_cpu_capacity_used;
+  int percent_shared_processor_pool_used;
+  long main_storage_size_long;
+} SSTS0200;
+
+
+typedef struct {
+  char header[208];
+  unsigned char loca_adapter_address[12];
+} LIND0500;
+
+
+typedef struct {
+  int bytes_provided;
+  int bytes_available;
+  char msgid[7];
+} errcode_s;
+
+
+static const unsigned char e2a[256] = {
+    0, 1, 2, 3, 156, 9, 134, 127, 151, 141, 142, 11, 12, 13, 14, 15,
+    16, 17, 18, 19, 157, 133, 8, 135, 24, 25, 146, 143, 28, 29, 30, 31,
+    128, 129, 130, 131, 132, 10, 23, 27, 136, 137, 138, 139, 140, 5, 6, 7,
+    144, 145, 22, 147, 148, 149, 150, 4, 152, 153, 154, 155, 20, 21, 158, 26,
+    32, 160, 161, 162, 163, 164, 165, 166, 167, 168, 91, 46, 60, 40, 43, 33,
+    38, 169, 170, 171, 172, 173, 174, 175, 176, 177, 93, 36, 42, 41, 59, 94,
+    45, 47, 178, 179, 180, 181, 182, 183, 184, 185, 124, 44, 37, 95, 62, 63,
+    186, 187, 188, 189, 190, 191, 192, 193, 194, 96, 58, 35, 64, 39, 61, 34,
+    195, 97, 98, 99, 100, 101, 102, 103, 104, 105, 196, 197, 198, 199, 200, 201,
+    202, 106, 107, 108, 109, 110, 111, 112, 113, 114, 203, 204, 205, 206, 207, 208,
+    209, 126, 115, 116, 117, 118, 119, 120, 121, 122, 210, 211, 212, 213, 214, 215,
+    216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231,
+    123, 65, 66, 67, 68, 69, 70, 71, 72, 73, 232, 233, 234, 235, 236, 237,
+    125, 74, 75, 76, 77, 78, 79, 80, 81, 82, 238, 239, 240, 241, 242, 243,
+    92, 159, 83, 84, 85, 86, 87, 88, 89, 90, 244, 245, 246, 247, 248, 249,
+    48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 250, 251, 252, 253, 254, 255};
+
+
+static const unsigned char a2e[256] = {
+    0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15,
+    16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31,
+    64, 79, 127, 123, 91, 108, 80, 125, 77, 93, 92, 78, 107, 96, 75, 97,
+    240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 122, 94, 76, 126, 110, 111,
+    124, 193, 194, 195, 196, 197, 198, 199, 200, 201, 209, 210, 211, 212, 213, 214,
+    215, 216, 217, 226, 227, 228, 229, 230, 231, 232, 233, 74, 224, 90, 95, 109,
+    121, 129, 130, 131, 132, 133, 134, 135, 136, 137, 145, 146, 147, 148, 149, 150,
+    151, 152, 153, 162, 163, 164, 165, 166, 167, 168, 169, 192, 106, 208, 161, 7,
+    32, 33, 34, 35, 36, 21, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27,
+    48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62, 225,
+    65, 66, 67, 68, 69, 70, 71, 72, 73, 81, 82, 83, 84, 85, 86, 87,
+    88, 89, 98, 99, 100, 101, 102, 103, 104, 105, 112, 113, 114, 115, 116, 117,
+    118, 119, 120, 128, 138, 139, 140, 141, 142, 143, 144, 154, 155, 156, 157, 158,
+    159, 160, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183,
+    184, 185, 186, 187, 188, 189, 190, 191, 202, 203, 204, 205, 206, 207, 218, 219,
+    220, 221, 222, 223, 234, 235, 236, 237, 238, 239, 250, 251, 252, 253, 254, 255};
+
+
+static void iconv_e2a(unsigned char src[], unsigned char dst[], size_t length) {
+  size_t i;
+  for (i = 0; i < length; i++)
+    dst[i] = e2a[src[i]];
+}
+
+
+static void iconv_a2e(const char* src, unsigned char dst[], size_t length) {
+  size_t srclen;
+  size_t i;
+
+  srclen = strlen(src);
+  if (srclen > length)
+    abort();
+  for (i = 0; i < srclen; i++)
+    dst[i] = a2e[src[i]];
+  /* padding the remaining part with spaces */
+  for (; i < length; i++)
+    dst[i] = a2e[' '];
+}
+
+void init_process_title_mutex_once(void) {
+  uv_mutex_init(&process_title_mutex);
+}
+
+static int get_ibmi_system_status(SSTS0200* rcvr) {
+  /* rcvrlen is input parameter 2 to QWCRSSTS */
+  unsigned int rcvrlen = sizeof(*rcvr);
+  unsigned char format[8], reset_status[10];
+
+  /* format is input parameter 3 to QWCRSSTS */
+  iconv_a2e("SSTS0200", format, sizeof(format));
+  /* reset_status is input parameter 4 */
+  iconv_a2e("*NO", reset_status, sizeof(reset_status));
+
+  /* errcode is input parameter 5 to QWCRSSTS */
+  errcode_s errcode;
+
+  /* qwcrssts_pointer is the 16-byte tagged system pointer to QWCRSSTS */
+  ILEpointer __attribute__((aligned(16))) qwcrssts_pointer;
+
+  /* qwcrssts_argv is the array of argument pointers to QWCRSSTS */
+  void* qwcrssts_argv[6];
+
+  /* Set the IBM i pointer to the QSYS/QWCRSSTS *PGM object */
+  int rc = _RSLOBJ2(&qwcrssts_pointer, RSLOBJ_TS_PGM, "QWCRSSTS", "QSYS");
+
+  if (rc != 0)
+    return rc;
+
+  /* initialize the QWCRSSTS returned info structure */
+  memset(rcvr, 0, sizeof(*rcvr));
+
+  /* initialize the QWCRSSTS error code structure */
+  memset(&errcode, 0, sizeof(errcode));
+  errcode.bytes_provided = sizeof(errcode);
+
+  /* initialize the array of argument pointers for the QWCRSSTS API */
+  qwcrssts_argv[0] = rcvr;
+  qwcrssts_argv[1] = &rcvrlen;
+  qwcrssts_argv[2] = &format;
+  qwcrssts_argv[3] = &reset_status;
+  qwcrssts_argv[4] = &errcode;
+  qwcrssts_argv[5] = NULL;
+
+  /* Call the IBM i QWCRSSTS API from PASE */
+  rc = _PGMCALL(&qwcrssts_pointer, qwcrssts_argv, 0);
+
+  return rc;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  SSTS0200 rcvr;
+
+  if (get_ibmi_system_status(&rcvr))
+    return 0;
+
+  return (uint64_t)rcvr.main_storage_size * 1024ULL;
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  SSTS0200 rcvr;
+
+  if (get_ibmi_system_status(&rcvr))
+    return 0;
+
+  return (uint64_t)rcvr.main_storage_size * 1024ULL;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+void uv_loadavg(double avg[3]) {
+  SSTS0200 rcvr;
+
+  if (get_ibmi_system_status(&rcvr)) {
+    avg[0] = avg[1] = avg[2] = 0;
+    return;
+  }
+
+  /* The average (in tenths) of the elapsed time during which the processing
+   * units were in use. For example, a value of 411 in binary would be 41.1%.
+   * This percentage could be greater than 100% for an uncapped partition.
+   */
+  double processing_unit_used_percent =
+    rcvr.percent_processing_unit_used / 1000.0;
+
+  avg[0] = avg[1] = avg[2] = processing_unit_used_percent;
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  *rss = 0;
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  return UV_ENOSYS;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int numcpus, idx = 0;
+  uv_cpu_info_t* cpu_info;
+
+  *cpu_infos = NULL;
+  *count = 0;
+
+  numcpus = sysconf(_SC_NPROCESSORS_ONLN);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(uv_cpu_info_t));
+  if (!*cpu_infos) {
+    return UV_ENOMEM;
+  }
+
+  cpu_info = *cpu_infos;
+  for (idx = 0; idx < numcpus; idx++) {
+    cpu_info->speed = 0;
+    cpu_info->model = uv__strdup("unknown");
+    cpu_info->cpu_times.user = 0;
+    cpu_info->cpu_times.sys = 0;
+    cpu_info->cpu_times.idle = 0;
+    cpu_info->cpu_times.irq = 0;
+    cpu_info->cpu_times.nice = 0;
+    cpu_info++;
+  }
+  *count = numcpus;
+
+  return 0;
+}
+
+
+static int get_ibmi_physical_address(const char* line, char (*phys_addr)[6]) {
+  LIND0500 rcvr;
+  /* rcvrlen is input parameter 2 to QDCRLIND */
+  unsigned int rcvrlen = sizeof(rcvr);
+  unsigned char format[8], line_name[10];
+  unsigned char mac_addr[sizeof(rcvr.loca_adapter_address)];
+  int c[6];
+
+  /* format is input parameter 3 to QDCRLIND */
+  iconv_a2e("LIND0500", format, sizeof(format));
+
+  /* line_name is input parameter 4 to QDCRLIND */
+  iconv_a2e(line, line_name, sizeof(line_name));
+
+  /* err is input parameter 5 to QDCRLIND */
+  errcode_s err;
+
+  /* qwcrssts_pointer is the 16-byte tagged system pointer to QDCRLIND */
+  ILEpointer __attribute__((aligned(16))) qdcrlind_pointer;
+
+  /* qwcrssts_argv is the array of argument pointers to QDCRLIND */
+  void* qdcrlind_argv[6];
+
+  /* Set the IBM i pointer to the QSYS/QDCRLIND *PGM object */
+  int rc = _RSLOBJ2(&qdcrlind_pointer, RSLOBJ_TS_PGM, "QDCRLIND", "QSYS");
+
+  if (rc != 0)
+    return rc;
+
+  /* initialize the QDCRLIND returned info structure */
+  memset(&rcvr, 0, sizeof(rcvr));
+
+  /* initialize the QDCRLIND error code structure */
+  memset(&err, 0, sizeof(err));
+  err.bytes_provided = sizeof(err);
+
+  /* initialize the array of argument pointers for the QDCRLIND API */
+  qdcrlind_argv[0] = &rcvr;
+  qdcrlind_argv[1] = &rcvrlen;
+  qdcrlind_argv[2] = &format;
+  qdcrlind_argv[3] = &line_name;
+  qdcrlind_argv[4] = &err;
+  qdcrlind_argv[5] = NULL;
+
+  /* Call the IBM i QDCRLIND API from PASE */
+  rc = _PGMCALL(&qdcrlind_pointer, qdcrlind_argv, 0);
+  if (rc != 0)
+    return rc;
+
+  /* convert ebcdic loca_adapter_address to ascii first */
+  iconv_e2a(rcvr.loca_adapter_address, mac_addr,
+            sizeof(rcvr.loca_adapter_address));
+
+  /* convert loca_adapter_address(char[12]) to phys_addr(char[6]) */
+  int r = sscanf(mac_addr, "%02x%02x%02x%02x%02x%02x",
+                &c[0], &c[1], &c[2], &c[3], &c[4], &c[5]);
+
+  if (r == ARRAY_SIZE(c)) {
+    (*phys_addr)[0] = c[0];
+    (*phys_addr)[1] = c[1];
+    (*phys_addr)[2] = c[2];
+    (*phys_addr)[3] = c[3];
+    (*phys_addr)[4] = c[4];
+    (*phys_addr)[5] = c[5];
+  } else {
+    memset(*phys_addr, 0, sizeof(*phys_addr));
+    rc = -1;
+  }
+  return rc;
+}
+
+
+int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
+  uv_interface_address_t* address;
+  struct ifaddrs_pase *ifap = NULL, *cur;
+  int inet6, r = 0;
+
+  *count = 0;
+  *addresses = NULL;
+
+  if (Qp2getifaddrs(&ifap))
+    return UV_ENOSYS;
+
+  /* The first loop to get the size of the array to be allocated */
+  for (cur = ifap; cur; cur = cur->ifa_next) {
+    if (!(cur->ifa_addr->sa_family == AF_INET6 ||
+          cur->ifa_addr->sa_family == AF_INET))
+      continue;
+
+    if (!(cur->ifa_flags & IFF_UP && cur->ifa_flags & IFF_RUNNING))
+      continue;
+
+    (*count)++;
+  }
+
+  if (*count == 0) {
+    Qp2freeifaddrs(ifap);
+    return 0;
+  }
+
+  /* Alloc the return interface structs */
+  *addresses = uv__calloc(*count, sizeof(**addresses));
+  if (*addresses == NULL) {
+    Qp2freeifaddrs(ifap);
+    return UV_ENOMEM;
+  }
+  address = *addresses;
+
+  /* The second loop to fill in the array */
+  for (cur = ifap; cur; cur = cur->ifa_next) {
+    if (!(cur->ifa_addr->sa_family == AF_INET6 ||
+          cur->ifa_addr->sa_family == AF_INET))
+      continue;
+
+    if (!(cur->ifa_flags & IFF_UP && cur->ifa_flags & IFF_RUNNING))
+      continue;
+
+    address->name = uv__strdup(cur->ifa_name);
+
+    inet6 = (cur->ifa_addr->sa_family == AF_INET6);
+
+    if (inet6) {
+      address->address.address6 = *((struct sockaddr_in6*)cur->ifa_addr);
+      address->netmask.netmask6 = *((struct sockaddr_in6*)cur->ifa_netmask);
+      address->netmask.netmask6.sin6_family = AF_INET6;
+    } else {
+      address->address.address4 = *((struct sockaddr_in*)cur->ifa_addr);
+      address->netmask.netmask4 = *((struct sockaddr_in*)cur->ifa_netmask);
+      address->netmask.netmask4.sin_family = AF_INET;
+    }
+    address->is_internal = cur->ifa_flags & IFF_LOOPBACK ? 1 : 0;
+    if (!address->is_internal) {
+      int rc = get_ibmi_physical_address(address->name, &address->phys_addr);
+      if (rc != 0)
+        r = rc;
+    }
+
+    address++;
+  }
+
+  Qp2freeifaddrs(ifap);
+  return r;
+}
+
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses, int count) {
+  int i;
+
+  for (i = 0; i < count; ++i) {
+    uv__free(addresses[i].name);
+  }
+
+  uv__free(addresses);
+}
+
+char** uv_setup_args(int argc, char** argv) {
+  char exepath[UV__PATH_MAX];
+  char* s;
+  size_t size;
+
+  if (argc > 0) {
+    /* Use argv[0] to determine value for uv_exepath(). */
+    size = sizeof(exepath);
+    if (uv__search_path(argv[0], exepath, &size) == 0) {
+      uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+      uv_mutex_lock(&process_title_mutex);
+      original_exepath = uv__strdup(exepath);
+      uv_mutex_unlock(&process_title_mutex);
+    }
+  }
+
+  return argv;
+}
+
+int uv_set_process_title(const char* title) {
+  return 0;
+}
+
+int uv_get_process_title(char* buffer, size_t size) {
+  if (buffer == NULL || size == 0)
+    return UV_EINVAL;
+
+  buffer[0] = '\0';
+  return 0;
+}
+
+void uv__process_title_cleanup(void) {
+}

deps/libuv/src/unix/internal.h

@@ -0,0 +1,344 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_UNIX_INTERNAL_H_
+#define UV_UNIX_INTERNAL_H_
+
+#include "uv-common.h"
+
+#include <assert.h>
+#include <limits.h> /* _POSIX_PATH_MAX, PATH_MAX */
+#include <stdlib.h> /* abort */
+#include <string.h> /* strrchr */
+#include <fcntl.h>  /* O_CLOEXEC and O_NONBLOCK, if supported. */
+#include <stdio.h>
+#include <errno.h>
+#include <sys/socket.h>
+
+#if defined(__STRICT_ANSI__)
+# define inline __inline
+#endif
+
+#if defined(__linux__)
+# include "linux-syscalls.h"
+#endif /* __linux__ */
+
+#if defined(__MVS__)
+# include "os390-syscalls.h"
+#endif /* __MVS__ */
+
+#if defined(__sun)
+# include <sys/port.h>
+# include <port.h>
+#endif /* __sun */
+
+#if defined(_AIX)
+# define reqevents events
+# define rtnevents revents
+# include <sys/poll.h>
+#else
+# include <poll.h>
+#endif /* _AIX */
+
+#if defined(__APPLE__) && !TARGET_OS_IPHONE
+# include <AvailabilityMacros.h>
+#endif
+
+#if defined(PATH_MAX)
+# define UV__PATH_MAX PATH_MAX
+#else
+# define UV__PATH_MAX 8192
+#endif
+
+#if defined(__ANDROID__)
+int uv__pthread_sigmask(int how, const sigset_t* set, sigset_t* oset);
+# ifdef pthread_sigmask
+# undef pthread_sigmask
+# endif
+# define pthread_sigmask(how, set, oldset) uv__pthread_sigmask(how, set, oldset)
+#endif
+
+#define ACCESS_ONCE(type, var)                                                \
+  (*(volatile type*) &(var))
+
+#define ROUND_UP(a, b)                                                        \
+  ((a) % (b) ? ((a) + (b)) - ((a) % (b)) : (a))
+
+#define UNREACHABLE()                                                         \
+  do {                                                                        \
+    assert(0 && "unreachable code");                                          \
+    abort();                                                                  \
+  }                                                                           \
+  while (0)
+
+#define SAVE_ERRNO(block)                                                     \
+  do {                                                                        \
+    int _saved_errno = errno;                                                 \
+    do { block; } while (0);                                                  \
+    errno = _saved_errno;                                                     \
+  }                                                                           \
+  while (0)
+
+/* The __clang__ and __INTEL_COMPILER checks are superfluous because they
+ * define __GNUC__. They are here to convey to you, dear reader, that these
+ * macros are enabled when compiling with clang or icc.
+ */
+#if defined(__clang__) ||                                                     \
+    defined(__GNUC__) ||                                                      \
+    defined(__INTEL_COMPILER)
+# define UV_UNUSED(declaration)     __attribute__((unused)) declaration
+#else
+# define UV_UNUSED(declaration)     declaration
+#endif
+
+/* Leans on the fact that, on Linux, POLLRDHUP == EPOLLRDHUP. */
+#ifdef POLLRDHUP
+# define UV__POLLRDHUP POLLRDHUP
+#else
+# define UV__POLLRDHUP 0x2000
+#endif
+
+#ifdef POLLPRI
+# define UV__POLLPRI POLLPRI
+#else
+# define UV__POLLPRI 0
+#endif
+
+#if !defined(O_CLOEXEC) && defined(__FreeBSD__)
+/*
+ * It may be that we are just missing `__POSIX_VISIBLE >= 200809`.
+ * Try using fixed value const and give up, if it doesn't work
+ */
+# define O_CLOEXEC 0x00100000
+#endif
+
+typedef struct uv__stream_queued_fds_s uv__stream_queued_fds_t;
+
+/* loop flags */
+enum {
+  UV_LOOP_BLOCK_SIGPROF = 1
+};
+
+/* flags of excluding ifaddr */
+enum {
+  UV__EXCLUDE_IFPHYS,
+  UV__EXCLUDE_IFADDR
+};
+
+typedef enum {
+  UV_CLOCK_PRECISE = 0,  /* Use the highest resolution clock available. */
+  UV_CLOCK_FAST = 1      /* Use the fastest clock with <= 1ms granularity. */
+} uv_clocktype_t;
+
+struct uv__stream_queued_fds_s {
+  unsigned int size;
+  unsigned int offset;
+  int fds[1];
+};
+
+
+#if defined(_AIX) || \
+    defined(__APPLE__) || \
+    defined(__DragonFly__) || \
+    defined(__FreeBSD__) || \
+    defined(__FreeBSD_kernel__) || \
+    defined(__linux__) || \
+    defined(__OpenBSD__) || \
+    defined(__NetBSD__)
+#define uv__cloexec uv__cloexec_ioctl
+#define uv__nonblock uv__nonblock_ioctl
+#else
+#define uv__cloexec uv__cloexec_fcntl
+#define uv__nonblock uv__nonblock_fcntl
+#endif
+
+/* On Linux, uv__nonblock_fcntl() and uv__nonblock_ioctl() do not commute
+ * when O_NDELAY is not equal to O_NONBLOCK.  Case in point: linux/sparc32
+ * and linux/sparc64, where O_NDELAY is O_NONBLOCK + another bit.
+ *
+ * Libuv uses uv__nonblock_fcntl() directly sometimes so ensure that it
+ * commutes with uv__nonblock().
+ */
+#if defined(__linux__) && O_NDELAY != O_NONBLOCK
+#undef uv__nonblock
+#define uv__nonblock uv__nonblock_fcntl
+#endif
+
+/* core */
+int uv__cloexec_ioctl(int fd, int set);
+int uv__cloexec_fcntl(int fd, int set);
+int uv__nonblock_ioctl(int fd, int set);
+int uv__nonblock_fcntl(int fd, int set);
+int uv__close(int fd); /* preserves errno */
+int uv__close_nocheckstdio(int fd);
+int uv__close_nocancel(int fd);
+int uv__socket(int domain, int type, int protocol);
+ssize_t uv__recvmsg(int fd, struct msghdr *msg, int flags);
+void uv__make_close_pending(uv_handle_t* handle);
+int uv__getiovmax(void);
+
+void uv__io_init(uv__io_t* w, uv__io_cb cb, int fd);
+void uv__io_start(uv_loop_t* loop, uv__io_t* w, unsigned int events);
+void uv__io_stop(uv_loop_t* loop, uv__io_t* w, unsigned int events);
+void uv__io_close(uv_loop_t* loop, uv__io_t* w);
+void uv__io_feed(uv_loop_t* loop, uv__io_t* w);
+int uv__io_active(const uv__io_t* w, unsigned int events);
+int uv__io_check_fd(uv_loop_t* loop, int fd);
+void uv__io_poll(uv_loop_t* loop, int timeout); /* in milliseconds or -1 */
+int uv__io_fork(uv_loop_t* loop);
+int uv__fd_exists(uv_loop_t* loop, int fd);
+
+/* async */
+void uv__async_stop(uv_loop_t* loop);
+int uv__async_fork(uv_loop_t* loop);
+
+
+/* loop */
+void uv__run_idle(uv_loop_t* loop);
+void uv__run_check(uv_loop_t* loop);
+void uv__run_prepare(uv_loop_t* loop);
+
+/* stream */
+void uv__stream_init(uv_loop_t* loop, uv_stream_t* stream,
+    uv_handle_type type);
+int uv__stream_open(uv_stream_t*, int fd, int flags);
+void uv__stream_destroy(uv_stream_t* stream);
+#if defined(__APPLE__)
+int uv__stream_try_select(uv_stream_t* stream, int* fd);
+#endif /* defined(__APPLE__) */
+void uv__server_io(uv_loop_t* loop, uv__io_t* w, unsigned int events);
+int uv__accept(int sockfd);
+int uv__dup2_cloexec(int oldfd, int newfd);
+int uv__open_cloexec(const char* path, int flags);
+
+/* tcp */
+int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb);
+int uv__tcp_nodelay(int fd, int on);
+int uv__tcp_keepalive(int fd, int on, unsigned int delay);
+
+/* pipe */
+int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb);
+
+/* signal */
+void uv__signal_close(uv_signal_t* handle);
+void uv__signal_global_once_init(void);
+void uv__signal_loop_cleanup(uv_loop_t* loop);
+int uv__signal_loop_fork(uv_loop_t* loop);
+
+/* platform specific */
+uint64_t uv__hrtime(uv_clocktype_t type);
+int uv__kqueue_init(uv_loop_t* loop);
+int uv__platform_loop_init(uv_loop_t* loop);
+void uv__platform_loop_delete(uv_loop_t* loop);
+void uv__platform_invalidate_fd(uv_loop_t* loop, int fd);
+
+/* various */
+void uv__async_close(uv_async_t* handle);
+void uv__check_close(uv_check_t* handle);
+void uv__fs_event_close(uv_fs_event_t* handle);
+void uv__idle_close(uv_idle_t* handle);
+void uv__pipe_close(uv_pipe_t* handle);
+void uv__poll_close(uv_poll_t* handle);
+void uv__prepare_close(uv_prepare_t* handle);
+void uv__process_close(uv_process_t* handle);
+void uv__stream_close(uv_stream_t* handle);
+void uv__tcp_close(uv_tcp_t* handle);
+void uv__udp_close(uv_udp_t* handle);
+void uv__udp_finish_close(uv_udp_t* handle);
+uv_handle_type uv__handle_type(int fd);
+FILE* uv__open_file(const char* path);
+int uv__getpwuid_r(uv_passwd_t* pwd);
+int uv__search_path(const char* prog, char* buf, size_t* buflen);
+
+/* random */
+int uv__random_devurandom(void* buf, size_t buflen);
+int uv__random_getrandom(void* buf, size_t buflen);
+int uv__random_getentropy(void* buf, size_t buflen);
+int uv__random_readpath(const char* path, void* buf, size_t buflen);
+int uv__random_sysctl(void* buf, size_t buflen);
+
+#if defined(__APPLE__)
+int uv___stream_fd(const uv_stream_t* handle);
+#define uv__stream_fd(handle) (uv___stream_fd((const uv_stream_t*) (handle)))
+#else
+#define uv__stream_fd(handle) ((handle)->io_watcher.fd)
+#endif /* defined(__APPLE__) */
+
+#ifdef O_NONBLOCK
+# define UV__F_NONBLOCK O_NONBLOCK
+#else
+# define UV__F_NONBLOCK 1
+#endif
+
+int uv__make_pipe(int fds[2], int flags);
+
+#if defined(__APPLE__)
+
+int uv__fsevents_init(uv_fs_event_t* handle);
+int uv__fsevents_close(uv_fs_event_t* handle);
+void uv__fsevents_loop_delete(uv_loop_t* loop);
+
+#endif /* defined(__APPLE__) */
+
+UV_UNUSED(static void uv__update_time(uv_loop_t* loop)) {
+  /* Use a fast time source if available.  We only need millisecond precision.
+   */
+  loop->time = uv__hrtime(UV_CLOCK_FAST) / 1000000;
+}
+
+UV_UNUSED(static char* uv__basename_r(const char* path)) {
+  char* s;
+
+  s = strrchr(path, '/');
+  if (s == NULL)
+    return (char*) path;
+
+  return s + 1;
+}
+
+#if defined(__linux__)
+int uv__inotify_fork(uv_loop_t* loop, void* old_watchers);
+#endif
+
+typedef int (*uv__peersockfunc)(int, struct sockaddr*, socklen_t*);
+
+int uv__getsockpeername(const uv_handle_t* handle,
+                        uv__peersockfunc func,
+                        struct sockaddr* name,
+                        int* namelen);
+
+#if defined(__linux__)            ||                                      \
+    defined(__FreeBSD__)          ||                                      \
+    defined(__FreeBSD_kernel__)
+#define HAVE_MMSG 1
+struct uv__mmsghdr {
+  struct msghdr msg_hdr;
+  unsigned int msg_len;
+};
+
+int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen);
+int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen);
+#else
+#define HAVE_MMSG 0
+#endif
+
+
+#endif /* UV_UNIX_INTERNAL_H_ */

deps/libuv/src/unix/kqueue.c

@@ -0,0 +1,585 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <sys/sysctl.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+
+/*
+ * Required on
+ * - Until at least FreeBSD 11.0
+ * - Older versions of Mac OS X
+ *
+ * http://www.boost.org/doc/libs/1_61_0/boost/asio/detail/kqueue_reactor.hpp
+ */
+#ifndef EV_OOBAND
+#define EV_OOBAND  EV_FLAG1
+#endif
+
+static void uv__fs_event(uv_loop_t* loop, uv__io_t* w, unsigned int fflags);
+
+
+int uv__kqueue_init(uv_loop_t* loop) {
+  loop->backend_fd = kqueue();
+  if (loop->backend_fd == -1)
+    return UV__ERR(errno);
+
+  uv__cloexec(loop->backend_fd, 1);
+
+  return 0;
+}
+
+
+#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+static int uv__has_forked_with_cfrunloop;
+#endif
+
+int uv__io_fork(uv_loop_t* loop) {
+  int err;
+  loop->backend_fd = -1;
+  err = uv__kqueue_init(loop);
+  if (err)
+    return err;
+
+#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+  if (loop->cf_state != NULL) {
+    /* We cannot start another CFRunloop and/or thread in the child
+       process; CF aborts if you try or if you try to touch the thread
+       at all to kill it. So the best we can do is ignore it from now
+       on. This means we can't watch directories in the same way
+       anymore (like other BSDs). It also means we cannot properly
+       clean up the allocated resources; calling
+       uv__fsevents_loop_delete from uv_loop_close will crash the
+       process. So we sidestep the issue by pretending like we never
+       started it in the first place.
+    */
+    uv__store_relaxed(&uv__has_forked_with_cfrunloop, 1);
+    uv__free(loop->cf_state);
+    loop->cf_state = NULL;
+  }
+#endif /* #if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070 */
+  return err;
+}
+
+
+int uv__io_check_fd(uv_loop_t* loop, int fd) {
+  struct kevent ev;
+  int rc;
+
+  rc = 0;
+  EV_SET(&ev, fd, EVFILT_READ, EV_ADD, 0, 0, 0);
+  if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
+    rc = UV__ERR(errno);
+
+  EV_SET(&ev, fd, EVFILT_READ, EV_DELETE, 0, 0, 0);
+  if (rc == 0)
+    if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
+      abort();
+
+  return rc;
+}
+
+
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  struct kevent events[1024];
+  struct kevent* ev;
+  struct timespec spec;
+  unsigned int nevents;
+  unsigned int revents;
+  QUEUE* q;
+  uv__io_t* w;
+  sigset_t* pset;
+  sigset_t set;
+  uint64_t base;
+  uint64_t diff;
+  int have_signals;
+  int filter;
+  int fflags;
+  int count;
+  int nfds;
+  int fd;
+  int op;
+  int i;
+  int user_timeout;
+  int reset_timeout;
+
+  if (loop->nfds == 0) {
+    assert(QUEUE_EMPTY(&loop->watcher_queue));
+    return;
+  }
+
+  nevents = 0;
+
+  while (!QUEUE_EMPTY(&loop->watcher_queue)) {
+    q = QUEUE_HEAD(&loop->watcher_queue);
+    QUEUE_REMOVE(q);
+    QUEUE_INIT(q);
+
+    w = QUEUE_DATA(q, uv__io_t, watcher_queue);
+    assert(w->pevents != 0);
+    assert(w->fd >= 0);
+    assert(w->fd < (int) loop->nwatchers);
+
+    if ((w->events & POLLIN) == 0 && (w->pevents & POLLIN) != 0) {
+      filter = EVFILT_READ;
+      fflags = 0;
+      op = EV_ADD;
+
+      if (w->cb == uv__fs_event) {
+        filter = EVFILT_VNODE;
+        fflags = NOTE_ATTRIB | NOTE_WRITE  | NOTE_RENAME
+               | NOTE_DELETE | NOTE_EXTEND | NOTE_REVOKE;
+        op = EV_ADD | EV_ONESHOT; /* Stop the event from firing repeatedly. */
+      }
+
+      EV_SET(events + nevents, w->fd, filter, op, fflags, 0, 0);
+
+      if (++nevents == ARRAY_SIZE(events)) {
+        if (kevent(loop->backend_fd, events, nevents, NULL, 0, NULL))
+          abort();
+        nevents = 0;
+      }
+    }
+
+    if ((w->events & POLLOUT) == 0 && (w->pevents & POLLOUT) != 0) {
+      EV_SET(events + nevents, w->fd, EVFILT_WRITE, EV_ADD, 0, 0, 0);
+
+      if (++nevents == ARRAY_SIZE(events)) {
+        if (kevent(loop->backend_fd, events, nevents, NULL, 0, NULL))
+          abort();
+        nevents = 0;
+      }
+    }
+
+   if ((w->events & UV__POLLPRI) == 0 && (w->pevents & UV__POLLPRI) != 0) {
+      EV_SET(events + nevents, w->fd, EV_OOBAND, EV_ADD, 0, 0, 0);
+
+      if (++nevents == ARRAY_SIZE(events)) {
+        if (kevent(loop->backend_fd, events, nevents, NULL, 0, NULL))
+          abort();
+        nevents = 0;
+      }
+    }
+
+    w->events = w->pevents;
+  }
+
+  pset = NULL;
+  if (loop->flags & UV_LOOP_BLOCK_SIGPROF) {
+    pset = &set;
+    sigemptyset(pset);
+    sigaddset(pset, SIGPROF);
+  }
+
+  assert(timeout >= -1);
+  base = loop->time;
+  count = 48; /* Benchmarks suggest this gives the best throughput. */
+
+  if (uv__get_internal_fields(loop)->flags & UV_METRICS_IDLE_TIME) {
+    reset_timeout = 1;
+    user_timeout = timeout;
+    timeout = 0;
+  } else {
+    reset_timeout = 0;
+  }
+
+  for (;; nevents = 0) {
+    /* Only need to set the provider_entry_time if timeout != 0. The function
+     * will return early if the loop isn't configured with UV_METRICS_IDLE_TIME.
+     */
+    if (timeout != 0)
+      uv__metrics_set_provider_entry_time(loop);
+
+    if (timeout != -1) {
+      spec.tv_sec = timeout / 1000;
+      spec.tv_nsec = (timeout % 1000) * 1000000;
+    }
+
+    if (pset != NULL)
+      pthread_sigmask(SIG_BLOCK, pset, NULL);
+
+    nfds = kevent(loop->backend_fd,
+                  events,
+                  nevents,
+                  events,
+                  ARRAY_SIZE(events),
+                  timeout == -1 ? NULL : &spec);
+
+    if (pset != NULL)
+      pthread_sigmask(SIG_UNBLOCK, pset, NULL);
+
+    /* Update loop->time unconditionally. It's tempting to skip the update when
+     * timeout == 0 (i.e. non-blocking poll) but there is no guarantee that the
+     * operating system didn't reschedule our process while in the syscall.
+     */
+    SAVE_ERRNO(uv__update_time(loop));
+
+    if (nfds == 0) {
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+        if (timeout == -1)
+          continue;
+        if (timeout > 0)
+          goto update_timeout;
+      }
+
+      assert(timeout != -1);
+      return;
+    }
+
+    if (nfds == -1) {
+      if (errno != EINTR)
+        abort();
+
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+      }
+
+      if (timeout == 0)
+        return;
+
+      if (timeout == -1)
+        continue;
+
+      /* Interrupted by a signal. Update timeout and poll again. */
+      goto update_timeout;
+    }
+
+    have_signals = 0;
+    nevents = 0;
+
+    assert(loop->watchers != NULL);
+    loop->watchers[loop->nwatchers] = (void*) events;
+    loop->watchers[loop->nwatchers + 1] = (void*) (uintptr_t) nfds;
+    for (i = 0; i < nfds; i++) {
+      ev = events + i;
+      fd = ev->ident;
+      /* Skip invalidated events, see uv__platform_invalidate_fd */
+      if (fd == -1)
+        continue;
+      w = loop->watchers[fd];
+
+      if (w == NULL) {
+        /* File descriptor that we've stopped watching, disarm it.
+         * TODO: batch up. */
+        struct kevent events[1];
+
+        EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+        if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL))
+          if (errno != EBADF && errno != ENOENT)
+            abort();
+
+        continue;
+      }
+
+      if (ev->filter == EVFILT_VNODE) {
+        assert(w->events == POLLIN);
+        assert(w->pevents == POLLIN);
+        uv__metrics_update_idle_time(loop);
+        w->cb(loop, w, ev->fflags); /* XXX always uv__fs_event() */
+        nevents++;
+        continue;
+      }
+
+      revents = 0;
+
+      if (ev->filter == EVFILT_READ) {
+        if (w->pevents & POLLIN) {
+          revents |= POLLIN;
+          w->rcount = ev->data;
+        } else {
+          /* TODO batch up */
+          struct kevent events[1];
+          EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+          if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL))
+            if (errno != ENOENT)
+              abort();
+        }
+      }
+
+      if (ev->filter == EV_OOBAND) {
+        if (w->pevents & UV__POLLPRI) {
+          revents |= UV__POLLPRI;
+          w->rcount = ev->data;
+        } else {
+          /* TODO batch up */
+          struct kevent events[1];
+          EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+          if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL))
+            if (errno != ENOENT)
+              abort();
+        }
+      }
+
+      if (ev->filter == EVFILT_WRITE) {
+        if (w->pevents & POLLOUT) {
+          revents |= POLLOUT;
+          w->wcount = ev->data;
+        } else {
+          /* TODO batch up */
+          struct kevent events[1];
+          EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+          if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL))
+            if (errno != ENOENT)
+              abort();
+        }
+      }
+
+      if (ev->flags & EV_ERROR)
+        revents |= POLLERR;
+
+      if ((ev->flags & EV_EOF) && (w->pevents & UV__POLLRDHUP))
+        revents |= UV__POLLRDHUP;
+
+      if (revents == 0)
+        continue;
+
+      /* Run signal watchers last.  This also affects child process watchers
+       * because those are implemented in terms of signal watchers.
+       */
+      if (w == &loop->signal_io_watcher) {
+        have_signals = 1;
+      } else {
+        uv__metrics_update_idle_time(loop);
+        w->cb(loop, w, revents);
+      }
+
+      nevents++;
+    }
+
+    if (reset_timeout != 0) {
+      timeout = user_timeout;
+      reset_timeout = 0;
+    }
+
+    if (have_signals != 0) {
+      uv__metrics_update_idle_time(loop);
+      loop->signal_io_watcher.cb(loop, &loop->signal_io_watcher, POLLIN);
+    }
+
+    loop->watchers[loop->nwatchers] = NULL;
+    loop->watchers[loop->nwatchers + 1] = NULL;
+
+    if (have_signals != 0)
+      return;  /* Event loop should cycle now so don't poll again. */
+
+    if (nevents != 0) {
+      if (nfds == ARRAY_SIZE(events) && --count != 0) {
+        /* Poll for more events but don't block this time. */
+        timeout = 0;
+        continue;
+      }
+      return;
+    }
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    diff = loop->time - base;
+    if (diff >= (uint64_t) timeout)
+      return;
+
+    timeout -= diff;
+  }
+}
+
+
+void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
+  struct kevent* events;
+  uintptr_t i;
+  uintptr_t nfds;
+
+  assert(loop->watchers != NULL);
+  assert(fd >= 0);
+
+  events = (struct kevent*) loop->watchers[loop->nwatchers];
+  nfds = (uintptr_t) loop->watchers[loop->nwatchers + 1];
+  if (events == NULL)
+    return;
+
+  /* Invalidate events with same file descriptor */
+  for (i = 0; i < nfds; i++)
+    if ((int) events[i].ident == fd)
+      events[i].ident = -1;
+}
+
+
+static void uv__fs_event(uv_loop_t* loop, uv__io_t* w, unsigned int fflags) {
+  uv_fs_event_t* handle;
+  struct kevent ev;
+  int events;
+  const char* path;
+#if defined(F_GETPATH)
+  /* MAXPATHLEN == PATH_MAX but the former is what XNU calls it internally. */
+  char pathbuf[MAXPATHLEN];
+#endif
+
+  handle = container_of(w, uv_fs_event_t, event_watcher);
+
+  if (fflags & (NOTE_ATTRIB | NOTE_EXTEND))
+    events = UV_CHANGE;
+  else
+    events = UV_RENAME;
+
+  path = NULL;
+#if defined(F_GETPATH)
+  /* Also works when the file has been unlinked from the file system. Passing
+   * in the path when the file has been deleted is arguably a little strange
+   * but it's consistent with what the inotify backend does.
+   */
+  if (fcntl(handle->event_watcher.fd, F_GETPATH, pathbuf) == 0)
+    path = uv__basename_r(pathbuf);
+#endif
+  handle->cb(handle, path, events, 0);
+
+  if (handle->event_watcher.fd == -1)
+    return;
+
+  /* Watcher operates in one-shot mode, re-arm it. */
+  fflags = NOTE_ATTRIB | NOTE_WRITE  | NOTE_RENAME
+         | NOTE_DELETE | NOTE_EXTEND | NOTE_REVOKE;
+
+  EV_SET(&ev, w->fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, fflags, 0, 0);
+
+  if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
+    abort();
+}
+
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
+  return 0;
+}
+
+
+int uv_fs_event_start(uv_fs_event_t* handle,
+                      uv_fs_event_cb cb,
+                      const char* path,
+                      unsigned int flags) {
+  int fd;
+#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+  struct stat statbuf;
+#endif
+
+  if (uv__is_active(handle))
+    return UV_EINVAL;
+
+  handle->cb = cb;
+  handle->path = uv__strdup(path);
+  if (handle->path == NULL)
+    return UV_ENOMEM;
+
+  /* TODO open asynchronously - but how do we report back errors? */
+  fd = open(handle->path, O_RDONLY);
+  if (fd == -1) {
+    uv__free(handle->path);
+    handle->path = NULL;
+    return UV__ERR(errno);
+  }
+
+#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+  /* Nullify field to perform checks later */
+  handle->cf_cb = NULL;
+  handle->realpath = NULL;
+  handle->realpath_len = 0;
+  handle->cf_flags = flags;
+
+  if (fstat(fd, &statbuf))
+    goto fallback;
+  /* FSEvents works only with directories */
+  if (!(statbuf.st_mode & S_IFDIR))
+    goto fallback;
+
+  if (0 == uv__load_relaxed(&uv__has_forked_with_cfrunloop)) {
+    int r;
+    /* The fallback fd is no longer needed */
+    uv__close_nocheckstdio(fd);
+    handle->event_watcher.fd = -1;
+    r = uv__fsevents_init(handle);
+    if (r == 0) {
+      uv__handle_start(handle);
+    } else {
+      uv__free(handle->path);
+      handle->path = NULL;
+    }
+    return r;
+  }
+fallback:
+#endif /* #if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070 */
+
+  uv__handle_start(handle);
+  uv__io_init(&handle->event_watcher, uv__fs_event, fd);
+  uv__io_start(handle->loop, &handle->event_watcher, POLLIN);
+
+  return 0;
+}
+
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  int r;
+  r = 0;
+
+  if (!uv__is_active(handle))
+    return 0;
+
+  uv__handle_stop(handle);
+
+#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+  if (0 == uv__load_relaxed(&uv__has_forked_with_cfrunloop))
+    if (handle->cf_cb != NULL)
+      r = uv__fsevents_close(handle);
+#endif
+
+  if (handle->event_watcher.fd != -1) {
+    uv__io_close(handle->loop, &handle->event_watcher);
+    uv__close(handle->event_watcher.fd);
+    handle->event_watcher.fd = -1;
+  }
+
+  uv__free(handle->path);
+  handle->path = NULL;
+
+  return r;
+}
+
+
+void uv__fs_event_close(uv_fs_event_t* handle) {
+  uv_fs_event_stop(handle);
+}

deps/libuv/src/unix/linux-inotify.c

@@ -0,0 +1,327 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "uv/tree.h"
+#include "internal.h"
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/inotify.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+struct watcher_list {
+  RB_ENTRY(watcher_list) entry;
+  QUEUE watchers;
+  int iterating;
+  char* path;
+  int wd;
+};
+
+struct watcher_root {
+  struct watcher_list* rbh_root;
+};
+#define CAST(p) ((struct watcher_root*)(p))
+
+
+static int compare_watchers(const struct watcher_list* a,
+                            const struct watcher_list* b) {
+  if (a->wd < b->wd) return -1;
+  if (a->wd > b->wd) return 1;
+  return 0;
+}
+
+
+RB_GENERATE_STATIC(watcher_root, watcher_list, entry, compare_watchers)
+
+
+static void uv__inotify_read(uv_loop_t* loop,
+                             uv__io_t* w,
+                             unsigned int revents);
+
+static void maybe_free_watcher_list(struct watcher_list* w,
+                                    uv_loop_t* loop);
+
+static int init_inotify(uv_loop_t* loop) {
+  int fd;
+
+  if (loop->inotify_fd != -1)
+    return 0;
+
+  fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
+  if (fd < 0)
+    return UV__ERR(errno);
+
+  loop->inotify_fd = fd;
+  uv__io_init(&loop->inotify_read_watcher, uv__inotify_read, loop->inotify_fd);
+  uv__io_start(loop, &loop->inotify_read_watcher, POLLIN);
+
+  return 0;
+}
+
+
+int uv__inotify_fork(uv_loop_t* loop, void* old_watchers) {
+  /* Open the inotify_fd, and re-arm all the inotify watchers. */
+  int err;
+  struct watcher_list* tmp_watcher_list_iter;
+  struct watcher_list* watcher_list;
+  struct watcher_list tmp_watcher_list;
+  QUEUE queue;
+  QUEUE* q;
+  uv_fs_event_t* handle;
+  char* tmp_path;
+
+  if (old_watchers != NULL) {
+    /* We must restore the old watcher list to be able to close items
+     * out of it.
+     */
+    loop->inotify_watchers = old_watchers;
+
+    QUEUE_INIT(&tmp_watcher_list.watchers);
+    /* Note that the queue we use is shared with the start and stop()
+     * functions, making QUEUE_FOREACH unsafe to use. So we use the
+     * QUEUE_MOVE trick to safely iterate. Also don't free the watcher
+     * list until we're done iterating. c.f. uv__inotify_read.
+     */
+    RB_FOREACH_SAFE(watcher_list, watcher_root,
+                    CAST(&old_watchers), tmp_watcher_list_iter) {
+      watcher_list->iterating = 1;
+      QUEUE_MOVE(&watcher_list->watchers, &queue);
+      while (!QUEUE_EMPTY(&queue)) {
+        q = QUEUE_HEAD(&queue);
+        handle = QUEUE_DATA(q, uv_fs_event_t, watchers);
+        /* It's critical to keep a copy of path here, because it
+         * will be set to NULL by stop() and then deallocated by
+         * maybe_free_watcher_list
+         */
+        tmp_path = uv__strdup(handle->path);
+        assert(tmp_path != NULL);
+        QUEUE_REMOVE(q);
+        QUEUE_INSERT_TAIL(&watcher_list->watchers, q);
+        uv_fs_event_stop(handle);
+
+        QUEUE_INSERT_TAIL(&tmp_watcher_list.watchers, &handle->watchers);
+        handle->path = tmp_path;
+      }
+      watcher_list->iterating = 0;
+      maybe_free_watcher_list(watcher_list, loop);
+    }
+
+    QUEUE_MOVE(&tmp_watcher_list.watchers, &queue);
+    while (!QUEUE_EMPTY(&queue)) {
+        q = QUEUE_HEAD(&queue);
+        QUEUE_REMOVE(q);
+        handle = QUEUE_DATA(q, uv_fs_event_t, watchers);
+        tmp_path = handle->path;
+        handle->path = NULL;
+        err = uv_fs_event_start(handle, handle->cb, tmp_path, 0);
+        uv__free(tmp_path);
+        if (err)
+          return err;
+    }
+  }
+
+  return 0;
+}
+
+
+static struct watcher_list* find_watcher(uv_loop_t* loop, int wd) {
+  struct watcher_list w;
+  w.wd = wd;
+  return RB_FIND(watcher_root, CAST(&loop->inotify_watchers), &w);
+}
+
+static void maybe_free_watcher_list(struct watcher_list* w, uv_loop_t* loop) {
+  /* if the watcher_list->watchers is being iterated over, we can't free it. */
+  if ((!w->iterating) && QUEUE_EMPTY(&w->watchers)) {
+    /* No watchers left for this path. Clean up. */
+    RB_REMOVE(watcher_root, CAST(&loop->inotify_watchers), w);
+    inotify_rm_watch(loop->inotify_fd, w->wd);
+    uv__free(w);
+  }
+}
+
+static void uv__inotify_read(uv_loop_t* loop,
+                             uv__io_t* dummy,
+                             unsigned int events) {
+  const struct inotify_event* e;
+  struct watcher_list* w;
+  uv_fs_event_t* h;
+  QUEUE queue;
+  QUEUE* q;
+  const char* path;
+  ssize_t size;
+  const char *p;
+  /* needs to be large enough for sizeof(inotify_event) + strlen(path) */
+  char buf[4096];
+
+  while (1) {
+    do
+      size = read(loop->inotify_fd, buf, sizeof(buf));
+    while (size == -1 && errno == EINTR);
+
+    if (size == -1) {
+      assert(errno == EAGAIN || errno == EWOULDBLOCK);
+      break;
+    }
+
+    assert(size > 0); /* pre-2.6.21 thing, size=0 == read buffer too small */
+
+    /* Now we have one or more inotify_event structs. */
+    for (p = buf; p < buf + size; p += sizeof(*e) + e->len) {
+      e = (const struct inotify_event*) p;
+
+      events = 0;
+      if (e->mask & (IN_ATTRIB|IN_MODIFY))
+        events |= UV_CHANGE;
+      if (e->mask & ~(IN_ATTRIB|IN_MODIFY))
+        events |= UV_RENAME;
+
+      w = find_watcher(loop, e->wd);
+      if (w == NULL)
+        continue; /* Stale event, no watchers left. */
+
+      /* inotify does not return the filename when monitoring a single file
+       * for modifications. Repurpose the filename for API compatibility.
+       * I'm not convinced this is a good thing, maybe it should go.
+       */
+      path = e->len ? (const char*) (e + 1) : uv__basename_r(w->path);
+
+      /* We're about to iterate over the queue and call user's callbacks.
+       * What can go wrong?
+       * A callback could call uv_fs_event_stop()
+       * and the queue can change under our feet.
+       * So, we use QUEUE_MOVE() trick to safely iterate over the queue.
+       * And we don't free the watcher_list until we're done iterating.
+       *
+       * First,
+       * tell uv_fs_event_stop() (that could be called from a user's callback)
+       * not to free watcher_list.
+       */
+      w->iterating = 1;
+      QUEUE_MOVE(&w->watchers, &queue);
+      while (!QUEUE_EMPTY(&queue)) {
+        q = QUEUE_HEAD(&queue);
+        h = QUEUE_DATA(q, uv_fs_event_t, watchers);
+
+        QUEUE_REMOVE(q);
+        QUEUE_INSERT_TAIL(&w->watchers, q);
+
+        h->cb(h, path, events, 0);
+      }
+      /* done iterating, time to (maybe) free empty watcher_list */
+      w->iterating = 0;
+      maybe_free_watcher_list(w, loop);
+    }
+  }
+}
+
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
+  return 0;
+}
+
+
+int uv_fs_event_start(uv_fs_event_t* handle,
+                      uv_fs_event_cb cb,
+                      const char* path,
+                      unsigned int flags) {
+  struct watcher_list* w;
+  size_t len;
+  int events;
+  int err;
+  int wd;
+
+  if (uv__is_active(handle))
+    return UV_EINVAL;
+
+  err = init_inotify(handle->loop);
+  if (err)
+    return err;
+
+  events = IN_ATTRIB
+         | IN_CREATE
+         | IN_MODIFY
+         | IN_DELETE
+         | IN_DELETE_SELF
+         | IN_MOVE_SELF
+         | IN_MOVED_FROM
+         | IN_MOVED_TO;
+
+  wd = inotify_add_watch(handle->loop->inotify_fd, path, events);
+  if (wd == -1)
+    return UV__ERR(errno);
+
+  w = find_watcher(handle->loop, wd);
+  if (w)
+    goto no_insert;
+
+  len = strlen(path) + 1;
+  w = uv__malloc(sizeof(*w) + len);
+  if (w == NULL)
+    return UV_ENOMEM;
+
+  w->wd = wd;
+  w->path = memcpy(w + 1, path, len);
+  QUEUE_INIT(&w->watchers);
+  w->iterating = 0;
+  RB_INSERT(watcher_root, CAST(&handle->loop->inotify_watchers), w);
+
+no_insert:
+  uv__handle_start(handle);
+  QUEUE_INSERT_TAIL(&w->watchers, &handle->watchers);
+  handle->path = w->path;
+  handle->cb = cb;
+  handle->wd = wd;
+
+  return 0;
+}
+
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  struct watcher_list* w;
+
+  if (!uv__is_active(handle))
+    return 0;
+
+  w = find_watcher(handle->loop, handle->wd);
+  assert(w != NULL);
+
+  handle->wd = -1;
+  handle->path = NULL;
+  uv__handle_stop(handle);
+  QUEUE_REMOVE(&handle->watchers);
+
+  maybe_free_watcher_list(w, handle->loop);
+
+  return 0;
+}
+
+
+void uv__fs_event_close(uv_fs_event_t* handle) {
+  uv_fs_event_stop(handle);
+}

deps/libuv/src/unix/linux-syscalls.c

@@ -0,0 +1,267 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "linux-syscalls.h"
+#include <unistd.h>
+#include <signal.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <errno.h>
+
+#if defined(__arm__)
+# if defined(__thumb__) || defined(__ARM_EABI__)
+#  define UV_SYSCALL_BASE 0
+# else
+#  define UV_SYSCALL_BASE 0x900000
+# endif
+#endif /* __arm__ */
+
+#ifndef __NR_recvmmsg
+# if defined(__x86_64__)
+#  define __NR_recvmmsg 299
+# elif defined(__arm__)
+#  define __NR_recvmmsg (UV_SYSCALL_BASE + 365)
+# endif
+#endif /* __NR_recvmsg */
+
+#ifndef __NR_sendmmsg
+# if defined(__x86_64__)
+#  define __NR_sendmmsg 307
+# elif defined(__arm__)
+#  define __NR_sendmmsg (UV_SYSCALL_BASE + 374)
+# endif
+#endif /* __NR_sendmmsg */
+
+#ifndef __NR_utimensat
+# if defined(__x86_64__)
+#  define __NR_utimensat 280
+# elif defined(__i386__)
+#  define __NR_utimensat 320
+# elif defined(__arm__)
+#  define __NR_utimensat (UV_SYSCALL_BASE + 348)
+# endif
+#endif /* __NR_utimensat */
+
+#ifndef __NR_preadv
+# if defined(__x86_64__)
+#  define __NR_preadv 295
+# elif defined(__i386__)
+#  define __NR_preadv 333
+# elif defined(__arm__)
+#  define __NR_preadv (UV_SYSCALL_BASE + 361)
+# endif
+#endif /* __NR_preadv */
+
+#ifndef __NR_pwritev
+# if defined(__x86_64__)
+#  define __NR_pwritev 296
+# elif defined(__i386__)
+#  define __NR_pwritev 334
+# elif defined(__arm__)
+#  define __NR_pwritev (UV_SYSCALL_BASE + 362)
+# endif
+#endif /* __NR_pwritev */
+
+#ifndef __NR_dup3
+# if defined(__x86_64__)
+#  define __NR_dup3 292
+# elif defined(__i386__)
+#  define __NR_dup3 330
+# elif defined(__arm__)
+#  define __NR_dup3 (UV_SYSCALL_BASE + 358)
+# endif
+#endif /* __NR_pwritev */
+
+#ifndef __NR_copy_file_range
+# if defined(__x86_64__)
+#  define __NR_copy_file_range 326
+# elif defined(__i386__)
+#  define __NR_copy_file_range 377
+# elif defined(__s390__)
+#  define __NR_copy_file_range 375
+# elif defined(__arm__)
+#  define __NR_copy_file_range (UV_SYSCALL_BASE + 391)
+# elif defined(__aarch64__)
+#  define __NR_copy_file_range 285
+# elif defined(__powerpc__)
+#  define __NR_copy_file_range 379
+# elif defined(__arc__)
+#  define __NR_copy_file_range 285
+# endif
+#endif /* __NR_copy_file_range */
+
+#ifndef __NR_statx
+# if defined(__x86_64__)
+#  define __NR_statx 332
+# elif defined(__i386__)
+#  define __NR_statx 383
+# elif defined(__aarch64__)
+#  define __NR_statx 397
+# elif defined(__arm__)
+#  define __NR_statx (UV_SYSCALL_BASE + 397)
+# elif defined(__ppc__)
+#  define __NR_statx 383
+# elif defined(__s390__)
+#  define __NR_statx 379
+# endif
+#endif /* __NR_statx */
+
+#ifndef __NR_getrandom
+# if defined(__x86_64__)
+#  define __NR_getrandom 318
+# elif defined(__i386__)
+#  define __NR_getrandom 355
+# elif defined(__aarch64__)
+#  define __NR_getrandom 384
+# elif defined(__arm__)
+#  define __NR_getrandom (UV_SYSCALL_BASE + 384)
+# elif defined(__ppc__)
+#  define __NR_getrandom 359
+# elif defined(__s390__)
+#  define __NR_getrandom 349
+# endif
+#endif /* __NR_getrandom */
+
+struct uv__mmsghdr;
+
+int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
+#if defined(__i386__)
+  unsigned long args[4];
+  int rc;
+
+  args[0] = (unsigned long) fd;
+  args[1] = (unsigned long) mmsg;
+  args[2] = (unsigned long) vlen;
+  args[3] = /* flags */ 0;
+
+  /* socketcall() raises EINVAL when SYS_SENDMMSG is not supported. */
+  rc = syscall(/* __NR_socketcall */ 102, 20 /* SYS_SENDMMSG */, args);
+  if (rc == -1)
+    if (errno == EINVAL)
+      errno = ENOSYS;
+
+  return rc;
+#elif defined(__NR_sendmmsg)
+  return syscall(__NR_sendmmsg, fd, mmsg, vlen, /* flags */ 0);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
+#if defined(__i386__)
+  unsigned long args[5];
+  int rc;
+
+  args[0] = (unsigned long) fd;
+  args[1] = (unsigned long) mmsg;
+  args[2] = (unsigned long) vlen;
+  args[3] = /* flags */ 0;
+  args[4] = /* timeout */ 0;
+
+  /* socketcall() raises EINVAL when SYS_RECVMMSG is not supported. */
+  rc = syscall(/* __NR_socketcall */ 102, 19 /* SYS_RECVMMSG */, args);
+  if (rc == -1)
+    if (errno == EINVAL)
+      errno = ENOSYS;
+
+  return rc;
+#elif defined(__NR_recvmmsg)
+  return syscall(__NR_recvmmsg, fd, mmsg, vlen, /* flags */ 0, /* timeout */ 0);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+ssize_t uv__preadv(int fd, const struct iovec *iov, int iovcnt, int64_t offset) {
+#if defined(__NR_preadv)
+  return syscall(__NR_preadv, fd, iov, iovcnt, (long)offset, (long)(offset >> 32));
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+ssize_t uv__pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset) {
+#if defined(__NR_pwritev)
+  return syscall(__NR_pwritev, fd, iov, iovcnt, (long)offset, (long)(offset >> 32));
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__dup3(int oldfd, int newfd, int flags) {
+#if defined(__NR_dup3)
+  return syscall(__NR_dup3, oldfd, newfd, flags);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+ssize_t
+uv__fs_copy_file_range(int fd_in,
+                       ssize_t* off_in,
+                       int fd_out,
+                       ssize_t* off_out,
+                       size_t len,
+                       unsigned int flags)
+{
+#ifdef __NR_copy_file_range
+  return syscall(__NR_copy_file_range,
+                 fd_in,
+                 off_in,
+                 fd_out,
+                 off_out,
+                 len,
+                 flags);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__statx(int dirfd,
+              const char* path,
+              int flags,
+              unsigned int mask,
+              struct uv__statx* statxbuf) {
+  /* __NR_statx make Android box killed by SIGSYS.
+   * That looks like a seccomp2 sandbox filter rejecting the system call.
+   */
+#if defined(__NR_statx) && !defined(__ANDROID__)
+  return syscall(__NR_statx, dirfd, path, flags, mask, statxbuf);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}
+
+
+ssize_t uv__getrandom(void* buf, size_t buflen, unsigned flags) {
+#if defined(__NR_getrandom)
+  return syscall(__NR_getrandom, buf, buflen, flags);
+#else
+  return errno = ENOSYS, -1;
+#endif
+}

deps/libuv/src/unix/linux-syscalls.h

@@ -0,0 +1,81 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_LINUX_SYSCALL_H_
+#define UV_LINUX_SYSCALL_H_
+
+#undef  _GNU_SOURCE
+#define _GNU_SOURCE
+
+#include <stdint.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+
+struct uv__statx_timestamp {
+  int64_t tv_sec;
+  uint32_t tv_nsec;
+  int32_t unused0;
+};
+
+struct uv__statx {
+  uint32_t stx_mask;
+  uint32_t stx_blksize;
+  uint64_t stx_attributes;
+  uint32_t stx_nlink;
+  uint32_t stx_uid;
+  uint32_t stx_gid;
+  uint16_t stx_mode;
+  uint16_t unused0;
+  uint64_t stx_ino;
+  uint64_t stx_size;
+  uint64_t stx_blocks;
+  uint64_t stx_attributes_mask;
+  struct uv__statx_timestamp stx_atime;
+  struct uv__statx_timestamp stx_btime;
+  struct uv__statx_timestamp stx_ctime;
+  struct uv__statx_timestamp stx_mtime;
+  uint32_t stx_rdev_major;
+  uint32_t stx_rdev_minor;
+  uint32_t stx_dev_major;
+  uint32_t stx_dev_minor;
+  uint64_t unused1[14];
+};
+
+ssize_t uv__preadv(int fd, const struct iovec *iov, int iovcnt, int64_t offset);
+ssize_t uv__pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset);
+int uv__dup3(int oldfd, int newfd, int flags);
+ssize_t
+uv__fs_copy_file_range(int fd_in,
+                       ssize_t* off_in,
+                       int fd_out,
+                       ssize_t* off_out,
+                       size_t len,
+                       unsigned int flags);
+int uv__statx(int dirfd,
+              const char* path,
+              int flags,
+              unsigned int mask,
+              struct uv__statx* statxbuf);
+ssize_t uv__getrandom(void* buf, size_t buflen, unsigned flags);
+
+#endif /* UV_LINUX_SYSCALL_H_ */

deps/libuv/src/unix/loop-watcher.c

@@ -0,0 +1,68 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#define UV_LOOP_WATCHER_DEFINE(name, type)                                    \
+  int uv_##name##_init(uv_loop_t* loop, uv_##name##_t* handle) {              \
+    uv__handle_init(loop, (uv_handle_t*)handle, UV_##type);                   \
+    handle->name##_cb = NULL;                                                 \
+    return 0;                                                                 \
+  }                                                                           \
+                                                                              \
+  int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) {           \
+    if (uv__is_active(handle)) return 0;                                      \
+    if (cb == NULL) return UV_EINVAL;                                         \
+    QUEUE_INSERT_HEAD(&handle->loop->name##_handles, &handle->queue);         \
+    handle->name##_cb = cb;                                                   \
+    uv__handle_start(handle);                                                 \
+    return 0;                                                                 \
+  }                                                                           \
+                                                                              \
+  int uv_##name##_stop(uv_##name##_t* handle) {                               \
+    if (!uv__is_active(handle)) return 0;                                     \
+    QUEUE_REMOVE(&handle->queue);                                             \
+    uv__handle_stop(handle);                                                  \
+    return 0;                                                                 \
+  }                                                                           \
+                                                                              \
+  void uv__run_##name(uv_loop_t* loop) {                                      \
+    uv_##name##_t* h;                                                         \
+    QUEUE queue;                                                              \
+    QUEUE* q;                                                                 \
+    QUEUE_MOVE(&loop->name##_handles, &queue);                                \
+    while (!QUEUE_EMPTY(&queue)) {                                            \
+      q = QUEUE_HEAD(&queue);                                                 \
+      h = QUEUE_DATA(q, uv_##name##_t, queue);                                \
+      QUEUE_REMOVE(q);                                                        \
+      QUEUE_INSERT_TAIL(&loop->name##_handles, q);                            \
+      h->name##_cb(h);                                                        \
+    }                                                                         \
+  }                                                                           \
+                                                                              \
+  void uv__##name##_close(uv_##name##_t* handle) {                            \
+    uv_##name##_stop(handle);                                                 \
+  }
+
+UV_LOOP_WATCHER_DEFINE(prepare, PREPARE)
+UV_LOOP_WATCHER_DEFINE(check, CHECK)
+UV_LOOP_WATCHER_DEFINE(idle, IDLE)

deps/libuv/src/unix/loop.c

@@ -0,0 +1,228 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "uv/tree.h"
+#include "internal.h"
+#include "heap-inl.h"
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int uv_loop_init(uv_loop_t* loop) {
+  uv__loop_internal_fields_t* lfields;
+  void* saved_data;
+  int err;
+
+
+  saved_data = loop->data;
+  memset(loop, 0, sizeof(*loop));
+  loop->data = saved_data;
+
+  lfields = (uv__loop_internal_fields_t*) uv__calloc(1, sizeof(*lfields));
+  if (lfields == NULL)
+    return UV_ENOMEM;
+  loop->internal_fields = lfields;
+
+  err = uv_mutex_init(&lfields->loop_metrics.lock);
+  if (err)
+    goto fail_metrics_mutex_init;
+
+  heap_init((struct heap*) &loop->timer_heap);
+  QUEUE_INIT(&loop->wq);
+  QUEUE_INIT(&loop->idle_handles);
+  QUEUE_INIT(&loop->async_handles);
+  QUEUE_INIT(&loop->check_handles);
+  QUEUE_INIT(&loop->prepare_handles);
+  QUEUE_INIT(&loop->handle_queue);
+
+  loop->active_handles = 0;
+  loop->active_reqs.count = 0;
+  loop->nfds = 0;
+  loop->watchers = NULL;
+  loop->nwatchers = 0;
+  QUEUE_INIT(&loop->pending_queue);
+  QUEUE_INIT(&loop->watcher_queue);
+
+  loop->closing_handles = NULL;
+  uv__update_time(loop);
+  loop->async_io_watcher.fd = -1;
+  loop->async_wfd = -1;
+  loop->signal_pipefd[0] = -1;
+  loop->signal_pipefd[1] = -1;
+  loop->backend_fd = -1;
+  loop->emfile_fd = -1;
+
+  loop->timer_counter = 0;
+  loop->stop_flag = 0;
+
+  err = uv__platform_loop_init(loop);
+  if (err)
+    goto fail_platform_init;
+
+  uv__signal_global_once_init();
+  err = uv_signal_init(loop, &loop->child_watcher);
+  if (err)
+    goto fail_signal_init;
+
+  uv__handle_unref(&loop->child_watcher);
+  loop->child_watcher.flags |= UV_HANDLE_INTERNAL;
+  QUEUE_INIT(&loop->process_handles);
+
+  err = uv_rwlock_init(&loop->cloexec_lock);
+  if (err)
+    goto fail_rwlock_init;
+
+  err = uv_mutex_init(&loop->wq_mutex);
+  if (err)
+    goto fail_mutex_init;
+
+  err = uv_async_init(loop, &loop->wq_async, uv__work_done);
+  if (err)
+    goto fail_async_init;
+
+  uv__handle_unref(&loop->wq_async);
+  loop->wq_async.flags |= UV_HANDLE_INTERNAL;
+
+  return 0;
+
+fail_async_init:
+  uv_mutex_destroy(&loop->wq_mutex);
+
+fail_mutex_init:
+  uv_rwlock_destroy(&loop->cloexec_lock);
+
+fail_rwlock_init:
+  uv__signal_loop_cleanup(loop);
+
+fail_signal_init:
+  uv__platform_loop_delete(loop);
+
+fail_platform_init:
+  uv_mutex_destroy(&lfields->loop_metrics.lock);
+
+fail_metrics_mutex_init:
+  uv__free(lfields);
+  loop->internal_fields = NULL;
+
+  uv__free(loop->watchers);
+  loop->nwatchers = 0;
+  return err;
+}
+
+
+int uv_loop_fork(uv_loop_t* loop) {
+  int err;
+  unsigned int i;
+  uv__io_t* w;
+
+  err = uv__io_fork(loop);
+  if (err)
+    return err;
+
+  err = uv__async_fork(loop);
+  if (err)
+    return err;
+
+  err = uv__signal_loop_fork(loop);
+  if (err)
+    return err;
+
+  /* Rearm all the watchers that aren't re-queued by the above. */
+  for (i = 0; i < loop->nwatchers; i++) {
+    w = loop->watchers[i];
+    if (w == NULL)
+      continue;
+
+    if (w->pevents != 0 && QUEUE_EMPTY(&w->watcher_queue)) {
+      w->events = 0; /* Force re-registration in uv__io_poll. */
+      QUEUE_INSERT_TAIL(&loop->watcher_queue, &w->watcher_queue);
+    }
+  }
+
+  return 0;
+}
+
+
+void uv__loop_close(uv_loop_t* loop) {
+  uv__loop_internal_fields_t* lfields;
+
+  uv__signal_loop_cleanup(loop);
+  uv__platform_loop_delete(loop);
+  uv__async_stop(loop);
+
+  if (loop->emfile_fd != -1) {
+    uv__close(loop->emfile_fd);
+    loop->emfile_fd = -1;
+  }
+
+  if (loop->backend_fd != -1) {
+    uv__close(loop->backend_fd);
+    loop->backend_fd = -1;
+  }
+
+  uv_mutex_lock(&loop->wq_mutex);
+  assert(QUEUE_EMPTY(&loop->wq) && "thread pool work queue not empty!");
+  assert(!uv__has_active_reqs(loop));
+  uv_mutex_unlock(&loop->wq_mutex);
+  uv_mutex_destroy(&loop->wq_mutex);
+
+  /*
+   * Note that all thread pool stuff is finished at this point and
+   * it is safe to just destroy rw lock
+   */
+  uv_rwlock_destroy(&loop->cloexec_lock);
+
+#if 0
+  assert(QUEUE_EMPTY(&loop->pending_queue));
+  assert(QUEUE_EMPTY(&loop->watcher_queue));
+  assert(loop->nfds == 0);
+#endif
+
+  uv__free(loop->watchers);
+  loop->watchers = NULL;
+  loop->nwatchers = 0;
+
+  lfields = uv__get_internal_fields(loop);
+  uv_mutex_destroy(&lfields->loop_metrics.lock);
+  uv__free(lfields);
+  loop->internal_fields = NULL;
+}
+
+
+int uv__loop_configure(uv_loop_t* loop, uv_loop_option option, va_list ap) {
+  uv__loop_internal_fields_t* lfields;
+
+  lfields = uv__get_internal_fields(loop);
+  if (option == UV_METRICS_IDLE_TIME) {
+    lfields->flags |= UV_METRICS_IDLE_TIME;
+    return 0;
+  }
+
+  if (option != UV_LOOP_BLOCK_SIGNAL)
+    return UV_ENOSYS;
+
+  if (va_arg(ap, int) != SIGPROF)
+    return UV_EINVAL;
+
+  loop->flags |= UV_LOOP_BLOCK_SIGPROF;
+  return 0;
+}

deps/libuv/src/unix/netbsd.c

@@ -0,0 +1,259 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+
+#include <kvm.h>
+#include <paths.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <uvm/uvm_extern.h>
+
+#include <unistd.h>
+#include <time.h>
+
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  return uv__kqueue_init(loop);
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+}
+
+
+void uv_loadavg(double avg[3]) {
+  struct loadavg info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_LOADAVG};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) == -1) return;
+
+  avg[0] = (double) info.ldavg[0] / info.fscale;
+  avg[1] = (double) info.ldavg[1] / info.fscale;
+  avg[2] = (double) info.ldavg[2] / info.fscale;
+}
+
+
+int uv_exepath(char* buffer, size_t* size) {
+  /* Intermediate buffer, retrieving partial path name does not work
+   * As of NetBSD-8(beta), vnode->path translator does not handle files
+   * with longer names than 31 characters.
+   */
+  char int_buf[PATH_MAX];
+  size_t int_size;
+  int mib[4];
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC_ARGS;
+  mib[2] = -1;
+  mib[3] = KERN_PROC_PATHNAME;
+  int_size = ARRAY_SIZE(int_buf);
+
+  if (sysctl(mib, 4, int_buf, &int_size, NULL, 0))
+    return UV__ERR(errno);
+
+  /* Copy string from the intermediate buffer to outer one with appropriate
+   * length.
+   */
+  /* TODO(bnoordhuis) Check uv__strscpy() return value. */
+  uv__strscpy(buffer, int_buf, *size);
+
+  /* Set new size. */
+  *size = strlen(buffer);
+
+  return 0;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  struct uvmexp info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_UVMEXP};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info.free * sysconf(_SC_PAGESIZE);
+}
+
+
+uint64_t uv_get_total_memory(void) {
+#if defined(HW_PHYSMEM64)
+  uint64_t info;
+  int which[] = {CTL_HW, HW_PHYSMEM64};
+#else
+  unsigned int info;
+  int which[] = {CTL_HW, HW_PHYSMEM};
+#endif
+  size_t size = sizeof(info);
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  kvm_t *kd = NULL;
+  struct kinfo_proc2 *kinfo = NULL;
+  pid_t pid;
+  int nprocs;
+  int max_size = sizeof(struct kinfo_proc2);
+  int page_size;
+
+  page_size = getpagesize();
+  pid = getpid();
+
+  kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, "kvm_open");
+
+  if (kd == NULL) goto error;
+
+  kinfo = kvm_getproc2(kd, KERN_PROC_PID, pid, max_size, &nprocs);
+  if (kinfo == NULL) goto error;
+
+  *rss = kinfo->p_vm_rssize * page_size;
+
+  kvm_close(kd);
+
+  return 0;
+
+error:
+  if (kd) kvm_close(kd);
+  return UV_EPERM;
+}
+
+
+int uv_uptime(double* uptime) {
+  time_t now;
+  struct timeval info;
+  size_t size = sizeof(info);
+  static int which[] = {CTL_KERN, KERN_BOOTTIME};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  now = time(NULL);
+
+  *uptime = (double)(now - info.tv_sec);
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK);
+  unsigned int multiplier = ((uint64_t)1000L / ticks);
+  unsigned int cur = 0;
+  uv_cpu_info_t* cpu_info;
+  u_int64_t* cp_times;
+  char model[512];
+  u_int64_t cpuspeed;
+  int numcpus;
+  size_t size;
+  int i;
+
+  size = sizeof(model);
+  if (sysctlbyname("machdep.cpu_brand", &model, &size, NULL, 0) &&
+      sysctlbyname("hw.model", &model, &size, NULL, 0)) {
+    return UV__ERR(errno);
+  }
+
+  size = sizeof(numcpus);
+  if (sysctlbyname("hw.ncpu", &numcpus, &size, NULL, 0))
+    return UV__ERR(errno);
+  *count = numcpus;
+
+  /* Only i386 and amd64 have machdep.tsc_freq */
+  size = sizeof(cpuspeed);
+  if (sysctlbyname("machdep.tsc_freq", &cpuspeed, &size, NULL, 0))
+    cpuspeed = 0;
+
+  size = numcpus * CPUSTATES * sizeof(*cp_times);
+  cp_times = uv__malloc(size);
+  if (cp_times == NULL)
+    return UV_ENOMEM;
+
+  if (sysctlbyname("kern.cp_time", cp_times, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
+  if (!(*cpu_infos)) {
+    uv__free(cp_times);
+    uv__free(*cpu_infos);
+    return UV_ENOMEM;
+  }
+
+  for (i = 0; i < numcpus; i++) {
+    cpu_info = &(*cpu_infos)[i];
+    cpu_info->cpu_times.user = (uint64_t)(cp_times[CP_USER+cur]) * multiplier;
+    cpu_info->cpu_times.nice = (uint64_t)(cp_times[CP_NICE+cur]) * multiplier;
+    cpu_info->cpu_times.sys = (uint64_t)(cp_times[CP_SYS+cur]) * multiplier;
+    cpu_info->cpu_times.idle = (uint64_t)(cp_times[CP_IDLE+cur]) * multiplier;
+    cpu_info->cpu_times.irq = (uint64_t)(cp_times[CP_INTR+cur]) * multiplier;
+    cpu_info->model = uv__strdup(model);
+    cpu_info->speed = (int)(cpuspeed/(uint64_t) 1e6);
+    cur += CPUSTATES;
+  }
+  uv__free(cp_times);
+  return 0;
+}
+
+int uv__random_sysctl(void* buf, size_t len) {
+  static int name[] = {CTL_KERN, KERN_ARND};
+  size_t count, req;
+  unsigned char* p;
+
+  p = buf;
+  while (len) {
+    req = len < 32 ? len : 32;
+    count = req;
+
+    if (sysctl(name, ARRAY_SIZE(name), p, &count, NULL, 0) == -1)
+      return UV__ERR(errno);
+
+    if (count != req)
+      return UV_EIO;  /* Can't happen. */
+
+    p += count;
+    len -= count;
+  }
+
+  return 0;
+}

deps/libuv/src/unix/no-fsevents.c

@@ -0,0 +1,42 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <errno.h>
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  return UV_ENOSYS;
+}
+
+int uv_fs_event_start(uv_fs_event_t* handle, uv_fs_event_cb cb,
+                      const char* filename, unsigned int flags) {
+  return UV_ENOSYS;
+}
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  return UV_ENOSYS;
+}
+
+void uv__fs_event_close(uv_fs_event_t* handle) {
+  UNREACHABLE();
+}

deps/libuv/src/unix/no-proctitle.c

@@ -0,0 +1,45 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <errno.h>
+#include <stddef.h>
+
+char** uv_setup_args(int argc, char** argv) {
+  return argv;
+}
+
+void uv__process_title_cleanup(void) {
+}
+
+int uv_set_process_title(const char* title) {
+  return 0;
+}
+
+int uv_get_process_title(char* buffer, size_t size) {
+  if (buffer == NULL || size == 0)
+    return UV_EINVAL;
+
+  buffer[0] = '\0';
+  return 0;
+}

deps/libuv/src/unix/openbsd.c

@@ -0,0 +1,240 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/resource.h>
+#include <sys/sched.h>
+#include <sys/time.h>
+#include <sys/sysctl.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <paths.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  return uv__kqueue_init(loop);
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+}
+
+
+void uv_loadavg(double avg[3]) {
+  struct loadavg info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_LOADAVG};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return;
+
+  avg[0] = (double) info.ldavg[0] / info.fscale;
+  avg[1] = (double) info.ldavg[1] / info.fscale;
+  avg[2] = (double) info.ldavg[2] / info.fscale;
+}
+
+
+int uv_exepath(char* buffer, size_t* size) {
+  int mib[4];
+  char **argsbuf = NULL;
+  size_t argsbuf_size = 100U;
+  size_t exepath_size;
+  pid_t mypid;
+  int err;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  mypid = getpid();
+  for (;;) {
+    err = UV_ENOMEM;
+    argsbuf = uv__reallocf(argsbuf, argsbuf_size);
+    if (argsbuf == NULL)
+      goto out;
+    mib[0] = CTL_KERN;
+    mib[1] = KERN_PROC_ARGS;
+    mib[2] = mypid;
+    mib[3] = KERN_PROC_ARGV;
+    if (sysctl(mib, ARRAY_SIZE(mib), argsbuf, &argsbuf_size, NULL, 0) == 0) {
+      break;
+    }
+    if (errno != ENOMEM) {
+      err = UV__ERR(errno);
+      goto out;
+    }
+    argsbuf_size *= 2U;
+  }
+
+  if (argsbuf[0] == NULL) {
+    err = UV_EINVAL;  /* FIXME(bnoordhuis) More appropriate error. */
+    goto out;
+  }
+
+  *size -= 1;
+  exepath_size = strlen(argsbuf[0]);
+  if (*size > exepath_size)
+    *size = exepath_size;
+
+  memcpy(buffer, argsbuf[0], *size);
+  buffer[*size] = '\0';
+  err = 0;
+
+out:
+  uv__free(argsbuf);
+
+  return err;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  struct uvmexp info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_UVMEXP};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info.free * sysconf(_SC_PAGESIZE);
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  uint64_t info;
+  int which[] = {CTL_HW, HW_PHYSMEM64};
+  size_t size = sizeof(info);
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  struct kinfo_proc kinfo;
+  size_t page_size = getpagesize();
+  size_t size = sizeof(struct kinfo_proc);
+  int mib[6];
+
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC;
+  mib[2] = KERN_PROC_PID;
+  mib[3] = getpid();
+  mib[4] = sizeof(struct kinfo_proc);
+  mib[5] = 1;
+
+  if (sysctl(mib, ARRAY_SIZE(mib), &kinfo, &size, NULL, 0) < 0)
+    return UV__ERR(errno);
+
+  *rss = kinfo.p_vm_rssize * page_size;
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  time_t now;
+  struct timeval info;
+  size_t size = sizeof(info);
+  static int which[] = {CTL_KERN, KERN_BOOTTIME};
+
+  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  now = time(NULL);
+
+  *uptime = (double)(now - info.tv_sec);
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
+               multiplier = ((uint64_t)1000L / ticks), cpuspeed;
+  uint64_t info[CPUSTATES];
+  char model[512];
+  int numcpus = 1;
+  int which[] = {CTL_HW,HW_MODEL};
+  int percpu[] = {CTL_KERN,KERN_CPTIME2,0};
+  size_t size;
+  int i, j;
+  uv_cpu_info_t* cpu_info;
+
+  size = sizeof(model);
+  if (sysctl(which, ARRAY_SIZE(which), &model, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  which[1] = HW_NCPUONLINE;
+  size = sizeof(numcpus);
+  if (sysctl(which, ARRAY_SIZE(which), &numcpus, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
+  if (!(*cpu_infos))
+    return UV_ENOMEM;
+
+  i = 0;
+  *count = numcpus;
+
+  which[1] = HW_CPUSPEED;
+  size = sizeof(cpuspeed);
+  if (sysctl(which, ARRAY_SIZE(which), &cpuspeed, &size, NULL, 0))
+    goto error;
+
+  size = sizeof(info);
+  for (i = 0; i < numcpus; i++) {
+    percpu[2] = i;
+    if (sysctl(percpu, ARRAY_SIZE(percpu), &info, &size, NULL, 0))
+      goto error;
+
+    cpu_info = &(*cpu_infos)[i];
+
+    cpu_info->cpu_times.user = (uint64_t)(info[CP_USER]) * multiplier;
+    cpu_info->cpu_times.nice = (uint64_t)(info[CP_NICE]) * multiplier;
+    cpu_info->cpu_times.sys = (uint64_t)(info[CP_SYS]) * multiplier;
+    cpu_info->cpu_times.idle = (uint64_t)(info[CP_IDLE]) * multiplier;
+    cpu_info->cpu_times.irq = (uint64_t)(info[CP_INTR]) * multiplier;
+
+    cpu_info->model = uv__strdup(model);
+    cpu_info->speed = cpuspeed;
+  }
+
+  return 0;
+
+error:
+  *count = 0;
+  for (j = 0; j < i; j++)
+    uv__free((*cpu_infos)[j].model);
+
+  uv__free(*cpu_infos);
+  *cpu_infos = NULL;
+  return UV__ERR(errno);
+}

deps/libuv/src/unix/os390-syscalls.c

@@ -0,0 +1,584 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+
+#include "os390-syscalls.h"
+#include <errno.h>
+#include <stdlib.h>
+#include <search.h>
+#include <termios.h>
+#include <sys/msg.h>
+
+#define CW_INTRPT 1
+#define CW_CONDVAR 32
+
+#pragma linkage(BPX4CTW, OS)
+#pragma linkage(BPX1CTW, OS)
+
+static QUEUE global_epoll_queue;
+static uv_mutex_t global_epoll_lock;
+static uv_once_t once = UV_ONCE_INIT;
+
+int scandir(const char* maindir, struct dirent*** namelist,
+            int (*filter)(const struct dirent*),
+            int (*compar)(const struct dirent**,
+            const struct dirent **)) {
+  struct dirent** nl;
+  struct dirent** nl_copy;
+  struct dirent* dirent;
+  unsigned count;
+  size_t allocated;
+  DIR* mdir;
+
+  nl = NULL;
+  count = 0;
+  allocated = 0;
+  mdir = opendir(maindir);
+  if (!mdir)
+    return -1;
+
+  while (1) {
+    dirent = readdir(mdir);
+    if (!dirent)
+      break;
+    if (!filter || filter(dirent)) {
+      struct dirent* copy;
+      copy = uv__malloc(sizeof(*copy));
+      if (!copy)
+        goto error;
+      memcpy(copy, dirent, sizeof(*copy));
+
+      nl_copy = uv__realloc(nl, sizeof(*copy) * (count + 1));
+      if (nl_copy == NULL) {
+        uv__free(copy);
+        goto error;
+      }
+
+      nl = nl_copy;
+      nl[count++] = copy;
+    }
+  }
+
+  qsort(nl, count, sizeof(struct dirent *),
+       (int (*)(const void *, const void *)) compar);
+
+  closedir(mdir);
+
+  *namelist = nl;
+  return count;
+
+error:
+  while (count > 0) {
+    dirent = nl[--count];
+    uv__free(dirent);
+  }
+  uv__free(nl);
+  closedir(mdir);
+  errno = ENOMEM;
+  return -1;
+}
+
+
+static unsigned int next_power_of_two(unsigned int val) {
+  val -= 1;
+  val |= val >> 1;
+  val |= val >> 2;
+  val |= val >> 4;
+  val |= val >> 8;
+  val |= val >> 16;
+  val += 1;
+  return val;
+}
+
+
+static void maybe_resize(uv__os390_epoll* lst, unsigned int len) {
+  unsigned int newsize;
+  unsigned int i;
+  struct pollfd* newlst;
+  struct pollfd event;
+
+  if (len <= lst->size)
+    return;
+
+  if (lst->size == 0)
+    event.fd = -1;
+  else {
+    /* Extract the message queue at the end. */
+    event = lst->items[lst->size - 1];
+    lst->items[lst->size - 1].fd = -1;
+  }
+
+  newsize = next_power_of_two(len);
+  newlst = uv__reallocf(lst->items, newsize * sizeof(lst->items[0]));
+
+  if (newlst == NULL)
+    abort();
+  for (i = lst->size; i < newsize; ++i)
+    newlst[i].fd = -1;
+
+  /* Restore the message queue at the end */
+  newlst[newsize - 1] = event;
+
+  lst->items = newlst;
+  lst->size = newsize;
+}
+
+
+static void init_message_queue(uv__os390_epoll* lst) {
+  struct {
+    long int header;
+    char body;
+  } msg;
+
+  /* initialize message queue */
+  lst->msg_queue = msgget(IPC_PRIVATE, 0600 | IPC_CREAT);
+  if (lst->msg_queue == -1)
+    abort();
+
+  /*
+     On z/OS, the message queue will be affiliated with the process only
+     when a send is performed on it. Once this is done, the system
+     can be queried for all message queues belonging to our process id.
+  */
+  msg.header = 1;
+  if (msgsnd(lst->msg_queue, &msg, sizeof(msg.body), 0) != 0)
+    abort();
+
+  /* Clean up the dummy message sent above */
+  if (msgrcv(lst->msg_queue, &msg, sizeof(msg.body), 0, 0) != sizeof(msg.body))
+    abort();
+}
+
+
+static void before_fork(void) {
+  uv_mutex_lock(&global_epoll_lock);
+}
+
+
+static void after_fork(void) {
+  uv_mutex_unlock(&global_epoll_lock);
+}
+
+
+static void child_fork(void) {
+  QUEUE* q;
+  uv_once_t child_once = UV_ONCE_INIT;
+
+  /* reset once */
+  memcpy(&once, &child_once, sizeof(child_once));
+
+  /* reset epoll list */
+  while (!QUEUE_EMPTY(&global_epoll_queue)) {
+    uv__os390_epoll* lst;
+    q = QUEUE_HEAD(&global_epoll_queue);
+    QUEUE_REMOVE(q);
+    lst = QUEUE_DATA(q, uv__os390_epoll, member);
+    uv__free(lst->items);
+    lst->items = NULL;
+    lst->size = 0;
+  }
+
+  uv_mutex_unlock(&global_epoll_lock);
+  uv_mutex_destroy(&global_epoll_lock);
+}
+
+
+static void epoll_init(void) {
+  QUEUE_INIT(&global_epoll_queue);
+  if (uv_mutex_init(&global_epoll_lock))
+    abort();
+
+  if (pthread_atfork(&before_fork, &after_fork, &child_fork))
+    abort();
+}
+
+
+uv__os390_epoll* epoll_create1(int flags) {
+  uv__os390_epoll* lst;
+
+  lst = uv__malloc(sizeof(*lst));
+  if (lst != NULL) {
+    /* initialize list */
+    lst->size = 0;
+    lst->items = NULL;
+    init_message_queue(lst);
+    maybe_resize(lst, 1);
+    lst->items[lst->size - 1].fd = lst->msg_queue;
+    lst->items[lst->size - 1].events = POLLIN;
+    lst->items[lst->size - 1].revents = 0;
+    uv_once(&once, epoll_init);
+    uv_mutex_lock(&global_epoll_lock);
+    QUEUE_INSERT_TAIL(&global_epoll_queue, &lst->member);
+    uv_mutex_unlock(&global_epoll_lock);
+  }
+
+  return lst;
+}
+
+
+int epoll_ctl(uv__os390_epoll* lst,
+              int op,
+              int fd,
+              struct epoll_event *event) {
+  uv_mutex_lock(&global_epoll_lock);
+
+  if (op == EPOLL_CTL_DEL) {
+    if (fd >= lst->size || lst->items[fd].fd == -1) {
+      uv_mutex_unlock(&global_epoll_lock);
+      errno = ENOENT;
+      return -1;
+    }
+    lst->items[fd].fd = -1;
+  } else if (op == EPOLL_CTL_ADD) {
+
+    /* Resizing to 'fd + 1' would expand the list to contain at least
+     * 'fd'. But we need to guarantee that the last index on the list 
+     * is reserved for the message queue. So specify 'fd + 2' instead.
+     */
+    maybe_resize(lst, fd + 2);
+    if (lst->items[fd].fd != -1) {
+      uv_mutex_unlock(&global_epoll_lock);
+      errno = EEXIST;
+      return -1;
+    }
+    lst->items[fd].fd = fd;
+    lst->items[fd].events = event->events;
+    lst->items[fd].revents = 0;
+  } else if (op == EPOLL_CTL_MOD) {
+    if (fd >= lst->size - 1 || lst->items[fd].fd == -1) {
+      uv_mutex_unlock(&global_epoll_lock);
+      errno = ENOENT;
+      return -1;
+    }
+    lst->items[fd].events = event->events;
+    lst->items[fd].revents = 0;
+  } else
+    abort();
+
+  uv_mutex_unlock(&global_epoll_lock);
+  return 0;
+}
+
+#define EP_MAX_PFDS (ULONG_MAX / sizeof(struct pollfd))
+#define EP_MAX_EVENTS (INT_MAX / sizeof(struct epoll_event))
+
+int epoll_wait(uv__os390_epoll* lst, struct epoll_event* events,
+               int maxevents, int timeout) {
+  nmsgsfds_t size;
+  struct pollfd* pfds;
+  int pollret;
+  int reventcount;
+  int nevents;
+  struct pollfd msg_fd;
+  int i;
+
+  if (!lst || !lst->items || !events) {
+    errno = EFAULT;
+    return -1;
+  }
+
+  if (lst->size > EP_MAX_PFDS) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  if (maxevents <= 0 || maxevents > EP_MAX_EVENTS) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  if (lst->size > 0)
+    _SET_FDS_MSGS(size, 1, lst->size - 1);
+  else
+    _SET_FDS_MSGS(size, 0, 0);
+  pfds = lst->items;
+  pollret = poll(pfds, size, timeout);
+  if (pollret <= 0)
+    return pollret;
+
+  assert(lst->size > 0);
+
+  pollret = _NFDS(pollret) + _NMSGS(pollret);
+
+  reventcount = 0;
+  nevents = 0;
+  msg_fd = pfds[lst->size - 1];
+  for (i = 0;
+       i < lst->size && i < maxevents && reventcount < pollret; ++i) {
+    struct epoll_event ev;
+    struct pollfd* pfd;
+
+    pfd = &pfds[i];
+    if (pfd->fd == -1 || pfd->revents == 0)
+      continue;
+
+    ev.fd = pfd->fd;
+    ev.events = pfd->revents;
+    ev.is_msg = 0;
+    if (pfd->revents & POLLIN && pfd->revents & POLLOUT)
+      reventcount += 2;
+    else if (pfd->revents & (POLLIN | POLLOUT))
+      ++reventcount;
+
+    pfd->revents = 0;
+    events[nevents++] = ev;
+  }
+
+  if (msg_fd.revents != 0 && msg_fd.fd != -1)
+    if (i == lst->size)
+      events[nevents - 1].is_msg = 1;
+
+  return nevents;
+}
+
+
+int epoll_file_close(int fd) {
+  QUEUE* q;
+
+  uv_once(&once, epoll_init);
+  uv_mutex_lock(&global_epoll_lock);
+  QUEUE_FOREACH(q, &global_epoll_queue) {
+    uv__os390_epoll* lst;
+
+    lst = QUEUE_DATA(q, uv__os390_epoll, member);
+    if (fd < lst->size && lst->items != NULL && lst->items[fd].fd != -1)
+      lst->items[fd].fd = -1;
+  }
+
+  uv_mutex_unlock(&global_epoll_lock);
+  return 0;
+}
+
+void epoll_queue_close(uv__os390_epoll* lst) {
+  /* Remove epoll instance from global queue */
+  uv_mutex_lock(&global_epoll_lock);
+  QUEUE_REMOVE(&lst->member);
+  uv_mutex_unlock(&global_epoll_lock);
+
+  /* Free resources */
+  msgctl(lst->msg_queue, IPC_RMID, NULL);
+  lst->msg_queue = -1;
+  uv__free(lst->items);
+  lst->items = NULL;
+}
+
+
+int nanosleep(const struct timespec* req, struct timespec* rem) {
+  unsigned nano;
+  unsigned seconds;
+  unsigned events;
+  unsigned secrem;
+  unsigned nanorem;
+  int rv;
+  int err;
+  int rsn;
+
+  nano = (int)req->tv_nsec;
+  seconds = req->tv_sec;
+  events = CW_CONDVAR | CW_INTRPT;
+  secrem = 0;
+  nanorem = 0;
+
+#if defined(_LP64)
+  BPX4CTW(&seconds, &nano, &events, &secrem, &nanorem, &rv, &err, &rsn);
+#else
+  BPX1CTW(&seconds, &nano, &events, &secrem, &nanorem, &rv, &err, &rsn);
+#endif
+
+  /* Don't clobber errno unless BPX1CTW/BPX4CTW errored.
+   * Don't leak EAGAIN, that just means the timeout expired.
+   */
+  if (rv == -1)
+    if (err == EAGAIN)
+      rv = 0;
+    else
+      errno = err;
+
+  if (rem != NULL && (rv == 0 || err == EINTR)) {
+    rem->tv_nsec = nanorem;
+    rem->tv_sec = secrem;
+  }
+
+  return rv;
+}
+
+
+char* mkdtemp(char* path) {
+  static const char* tempchars =
+    "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+  static const size_t num_chars = 62;
+  static const size_t num_x = 6;
+  char *ep, *cp;
+  unsigned int tries, i;
+  size_t len;
+  uint64_t v;
+  int fd;
+  int retval;
+  int saved_errno;
+
+  len = strlen(path);
+  ep = path + len;
+  if (len < num_x || strncmp(ep - num_x, "XXXXXX", num_x)) {
+    errno = EINVAL;
+    return NULL;
+  }
+
+  fd = open("/dev/urandom", O_RDONLY);
+  if (fd == -1)
+    return NULL;
+
+  tries = TMP_MAX;
+  retval = -1;
+  do {
+    if (read(fd, &v, sizeof(v)) != sizeof(v))
+      break;
+
+    cp = ep - num_x;
+    for (i = 0; i < num_x; i++) {
+      *cp++ = tempchars[v % num_chars];
+      v /= num_chars;
+    }
+
+    if (mkdir(path, S_IRWXU) == 0) {
+      retval = 0;
+      break;
+    }
+    else if (errno != EEXIST)
+      break;
+  } while (--tries);
+
+  saved_errno = errno;
+  uv__close(fd);
+  if (tries == 0) {
+    errno = EEXIST;
+    return NULL;
+  }
+
+  if (retval == -1) {
+    errno = saved_errno;
+    return NULL;
+  }
+
+  return path;
+}
+
+
+ssize_t os390_readlink(const char* path, char* buf, size_t len) {
+  ssize_t rlen;
+  ssize_t vlen;
+  ssize_t plen;
+  char* delimiter;
+  char old_delim;
+  char* tmpbuf;
+  char realpathstr[PATH_MAX + 1];
+
+  tmpbuf = uv__malloc(len + 1);
+  if (tmpbuf == NULL) {
+    errno = ENOMEM;
+    return -1;
+  }
+
+  rlen = readlink(path, tmpbuf, len);
+  if (rlen < 0) {
+    uv__free(tmpbuf);
+    return rlen;
+  }
+
+  if (rlen < 3 || strncmp("/$", tmpbuf, 2) != 0) {
+    /* Straightforward readlink. */
+    memcpy(buf, tmpbuf, rlen);
+    uv__free(tmpbuf);
+    return rlen;
+  }
+
+  /*
+   * There is a parmlib variable at the beginning
+   * which needs interpretation.
+   */
+  tmpbuf[rlen] = '\0';
+  delimiter = strchr(tmpbuf + 2, '/');
+  if (delimiter == NULL)
+    /* No slash at the end */
+    delimiter = strchr(tmpbuf + 2, '\0');
+
+  /* Read real path of the variable. */
+  old_delim = *delimiter;
+  *delimiter = '\0';
+  if (realpath(tmpbuf, realpathstr) == NULL) {
+    uv__free(tmpbuf);
+    return -1;
+  }
+
+  /* realpathstr is not guaranteed to end with null byte.*/
+  realpathstr[PATH_MAX] = '\0';
+
+  /* Reset the delimiter and fill up the buffer. */
+  *delimiter = old_delim;
+  plen = strlen(delimiter);
+  vlen = strlen(realpathstr);
+  rlen = plen + vlen;
+  if (rlen > len) {
+    uv__free(tmpbuf);
+    errno = ENAMETOOLONG;
+    return -1;
+  }
+  memcpy(buf, realpathstr, vlen);
+  memcpy(buf + vlen, delimiter, plen);
+
+  /* Done using temporary buffer. */
+  uv__free(tmpbuf);
+
+  return rlen;
+}
+
+
+size_t strnlen(const char* str, size_t maxlen) {
+  char* p = memchr(str, 0, maxlen);
+  if (p == NULL)
+    return maxlen;
+  else
+    return p - str;
+}
+
+
+int sem_init(UV_PLATFORM_SEM_T* semid, int pshared, unsigned int value) {
+  UNREACHABLE();
+}
+
+
+int sem_destroy(UV_PLATFORM_SEM_T* semid) {
+  UNREACHABLE();
+}
+
+
+int sem_post(UV_PLATFORM_SEM_T* semid) {
+  UNREACHABLE();
+}
+
+
+int sem_trywait(UV_PLATFORM_SEM_T* semid) {
+  UNREACHABLE();
+}
+
+
+int sem_wait(UV_PLATFORM_SEM_T* semid) {
+  UNREACHABLE();
+}

deps/libuv/src/unix/os390-syscalls.h

@@ -0,0 +1,74 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+
+#ifndef UV_OS390_SYSCALL_H_
+#define UV_OS390_SYSCALL_H_
+
+#include "uv.h"
+#include "internal.h"
+#include <dirent.h>
+#include <poll.h>
+#include <pthread.h>
+
+#define EPOLL_CTL_ADD             1
+#define EPOLL_CTL_DEL             2
+#define EPOLL_CTL_MOD             3
+#define MAX_EPOLL_INSTANCES       256
+#define MAX_ITEMS_PER_EPOLL       1024
+
+#define UV__O_CLOEXEC             0x80000
+
+struct epoll_event {
+  int events;
+  int fd;
+  int is_msg;
+};
+
+typedef struct {
+  QUEUE member;
+  struct pollfd* items;
+  unsigned long size;
+  int msg_queue;
+} uv__os390_epoll;
+
+/* epoll api */
+uv__os390_epoll* epoll_create1(int flags);
+int epoll_ctl(uv__os390_epoll* ep, int op, int fd, struct epoll_event *event);
+int epoll_wait(uv__os390_epoll* ep, struct epoll_event *events, int maxevents, int timeout);
+int epoll_file_close(int fd);
+
+/* utility functions */
+int nanosleep(const struct timespec* req, struct timespec* rem);
+int scandir(const char* maindir, struct dirent*** namelist,
+            int (*filter)(const struct dirent *),
+            int (*compar)(const struct dirent **,
+            const struct dirent **));
+char *mkdtemp(char* path);
+ssize_t os390_readlink(const char* path, char* buf, size_t len);
+size_t strnlen(const char* str, size_t maxlen);
+int sem_init(UV_PLATFORM_SEM_T* semid, int pshared, unsigned int value);
+int sem_destroy(UV_PLATFORM_SEM_T* semid);
+int sem_post(UV_PLATFORM_SEM_T* semid);
+int sem_trywait(UV_PLATFORM_SEM_T* semid);
+int sem_wait(UV_PLATFORM_SEM_T* semid);
+
+#endif /* UV_OS390_SYSCALL_H_ */

deps/libuv/src/unix/os390.c

@@ -0,0 +1,975 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "internal.h"
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <utmpx.h>
+#include <unistd.h>
+#include <sys/ps.h>
+#include <builtins.h>
+#include <termios.h>
+#include <sys/msg.h>
+#if defined(__clang__)
+#include "csrsic.h"
+#else
+#include "//'SYS1.SAMPLIB(CSRSIC)'"
+#endif
+
+#define CVT_PTR           0x10
+#define PSA_PTR           0x00
+#define CSD_OFFSET        0x294
+
+/*
+    Long-term average CPU service used by this logical partition,
+    in millions of service units per hour. If this value is above
+    the partition's defined capacity, the partition will be capped.
+    It is calculated using the physical CPU adjustment factor
+    (RCTPCPUA) so it may not match other measures of service which
+    are based on the logical CPU adjustment factor. It is available
+    if the hardware supports LPAR cluster.
+*/
+#define RCTLACS_OFFSET    0xC4
+
+/* 32-bit count of alive CPUs. This includes both CPs and IFAs */
+#define CSD_NUMBER_ONLINE_CPUS        0xD4
+
+/* Address of system resources manager (SRM) control table */
+#define CVTOPCTP_OFFSET   0x25C
+
+/* Address of the RCT table */
+#define RMCTRCT_OFFSET    0xE4
+
+/* Address of the rsm control and enumeration area. */
+#define CVTRCEP_OFFSET    0x490
+
+/*
+    Number of frames currently available to system.
+    Excluded are frames backing perm storage, frames offline, and bad frames.
+*/
+#define RCEPOOL_OFFSET    0x004
+
+/* Total number of frames currently on all available frame queues. */
+#define RCEAFC_OFFSET     0x088
+
+/* CPC model length from the CSRSI Service. */
+#define CPCMODEL_LENGTH   16
+
+/* Pointer to the home (current) ASCB. */
+#define PSAAOLD           0x224
+
+/* Pointer to rsm address space block extension. */
+#define ASCBRSME          0x16C
+
+/*
+    NUMBER OF FRAMES CURRENTLY IN USE BY THIS ADDRESS SPACE.
+    It does not include 2G frames.
+*/
+#define RAXFMCT           0x2C
+
+/* Thread Entry constants */
+#define PGTH_CURRENT  1
+#define PGTH_LEN      26
+#define PGTHAPATH     0x20
+#pragma linkage(BPX4GTH, OS)
+#pragma linkage(BPX1GTH, OS)
+
+/* TOD Clock resolution in nanoseconds */
+#define TOD_RES 4.096
+
+typedef unsigned data_area_ptr_assign_type;
+
+typedef union {
+  struct {
+#if defined(_LP64)
+    data_area_ptr_assign_type lower;
+#endif
+    data_area_ptr_assign_type assign;
+  };
+  char* deref;
+} data_area_ptr;
+
+
+void uv_loadavg(double avg[3]) {
+  /* TODO: implement the following */
+  avg[0] = 0;
+  avg[1] = 0;
+  avg[2] = 0;
+}
+
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  uv__os390_epoll* ep;
+
+  ep = epoll_create1(0);
+  loop->ep = ep;
+  if (ep == NULL)
+    return UV__ERR(errno);
+
+  return 0;
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+  if (loop->ep != NULL) {
+    epoll_queue_close(loop->ep);
+    loop->ep = NULL;
+  }
+}
+
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  unsigned long long timestamp;
+  __stckf(&timestamp);
+  /* Convert to nanoseconds */
+  return timestamp / TOD_RES;
+}
+
+
+/*
+    Get the exe path using the thread entry information
+    in the address space.
+*/
+static int getexe(const int pid, char* buf, size_t len) {
+  struct {
+    int pid;
+    int thid[2];
+    char accesspid;
+    char accessthid;
+    char asid[2];
+    char loginname[8];
+    char flag;
+    char len;
+  } Input_data;
+
+  union {
+    struct {
+      char gthb[4];
+      int pid;
+      int thid[2];
+      char accesspid;
+      char accessthid[3];
+      int lenused;
+      int offsetProcess;
+      int offsetConTTY;
+      int offsetPath;
+      int offsetCommand;
+      int offsetFileData;
+      int offsetThread;
+    } Output_data;
+    char buf[2048];
+  } Output_buf;
+
+  struct Output_path_type {
+    char gthe[4];
+    short int len;
+    char path[1024];
+  };
+
+  int Input_length;
+  int Output_length;
+  void* Input_address;
+  void* Output_address;
+  struct Output_path_type* Output_path;
+  int rv;
+  int rc;
+  int rsn;
+
+  Input_length = PGTH_LEN;
+  Output_length = sizeof(Output_buf);
+  Output_address = &Output_buf;
+  Input_address = &Input_data;
+  memset(&Input_data, 0, sizeof Input_data);
+  Input_data.flag |= PGTHAPATH;
+  Input_data.pid = pid;
+  Input_data.accesspid = PGTH_CURRENT;
+
+#ifdef _LP64
+  BPX4GTH(&Input_length,
+          &Input_address,
+          &Output_length,
+          &Output_address,
+          &rv,
+          &rc,
+          &rsn);
+#else
+  BPX1GTH(&Input_length,
+          &Input_address,
+          &Output_length,
+          &Output_address,
+          &rv,
+          &rc,
+          &rsn);
+#endif
+
+  if (rv == -1) {
+    errno = rc;
+    return -1;
+  }
+
+  /* Check highest byte to ensure data availability */
+  assert(((Output_buf.Output_data.offsetPath >>24) & 0xFF) == 'A');
+
+  /* Get the offset from the lowest 3 bytes */
+  Output_path = (struct Output_path_type*) ((char*) (&Output_buf) +
+      (Output_buf.Output_data.offsetPath & 0x00FFFFFF));
+
+  if (Output_path->len >= len) {
+    errno = ENOBUFS;
+    return -1;
+  }
+
+  uv__strscpy(buf, Output_path->path, len);
+
+  return 0;
+}
+
+
+/*
+ * We could use a static buffer for the path manipulations that we need outside
+ * of the function, but this function could be called by multiple consumers and
+ * we don't want to potentially create a race condition in the use of snprintf.
+ * There is no direct way of getting the exe path in zOS - either through /procfs
+ * or through some libc APIs. The below approach is to parse the argv[0]'s pattern
+ * and use it in conjunction with PATH environment variable to craft one.
+ */
+int uv_exepath(char* buffer, size_t* size) {
+  int res;
+  char args[PATH_MAX];
+  int pid;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  pid = getpid();
+  res = getexe(pid, args, sizeof(args));
+  if (res < 0)
+    return UV_EINVAL;
+
+  return uv__search_path(args, buffer, size);
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  uint64_t freeram;
+
+  data_area_ptr cvt = {0};
+  data_area_ptr rcep = {0};
+  cvt.assign = *(data_area_ptr_assign_type*)(CVT_PTR);
+  rcep.assign = *(data_area_ptr_assign_type*)(cvt.deref + CVTRCEP_OFFSET);
+  freeram = *((uint64_t*)(rcep.deref + RCEAFC_OFFSET)) * 4;
+  return freeram;
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  uint64_t totalram;
+
+  data_area_ptr cvt = {0};
+  data_area_ptr rcep = {0};
+  cvt.assign = *(data_area_ptr_assign_type*)(CVT_PTR);
+  rcep.assign = *(data_area_ptr_assign_type*)(cvt.deref + CVTRCEP_OFFSET);
+  totalram = *((uint64_t*)(rcep.deref + RCEPOOL_OFFSET)) * 4;
+  return totalram;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  char* ascb;
+  char* rax;
+  size_t nframes;
+
+  ascb  = *(char* __ptr32 *)(PSA_PTR + PSAAOLD);
+  rax = *(char* __ptr32 *)(ascb + ASCBRSME);
+  nframes = *(unsigned int*)(rax + RAXFMCT);
+
+  *rss = nframes * sysconf(_SC_PAGESIZE);
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  struct utmpx u ;
+  struct utmpx *v;
+  time64_t t;
+
+  u.ut_type = BOOT_TIME;
+  v = getutxid(&u);
+  if (v == NULL)
+    return -1;
+  *uptime = difftime64(time64(&t), v->ut_tv.tv_sec);
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  uv_cpu_info_t* cpu_info;
+  int idx;
+  siv1v2 info;
+  data_area_ptr cvt = {0};
+  data_area_ptr csd = {0};
+  data_area_ptr rmctrct = {0};
+  data_area_ptr cvtopctp = {0};
+  int cpu_usage_avg;
+
+  cvt.assign = *(data_area_ptr_assign_type*)(CVT_PTR);
+
+  csd.assign = *((data_area_ptr_assign_type *) (cvt.deref + CSD_OFFSET));
+  cvtopctp.assign = *((data_area_ptr_assign_type *) (cvt.deref + CVTOPCTP_OFFSET));
+  rmctrct.assign = *((data_area_ptr_assign_type *) (cvtopctp.deref + RMCTRCT_OFFSET));
+
+  *count = *((int*) (csd.deref + CSD_NUMBER_ONLINE_CPUS));
+  cpu_usage_avg = *((unsigned short int*) (rmctrct.deref + RCTLACS_OFFSET));
+
+  *cpu_infos = uv__malloc(*count * sizeof(uv_cpu_info_t));
+  if (!*cpu_infos)
+    return UV_ENOMEM;
+
+  cpu_info = *cpu_infos;
+  idx = 0;
+  while (idx < *count) {
+    cpu_info->speed = *(int*)(info.siv1v2si22v1.si22v1cpucapability);
+    cpu_info->model = uv__malloc(CPCMODEL_LENGTH + 1);
+    memset(cpu_info->model, '\0', CPCMODEL_LENGTH + 1);
+    memcpy(cpu_info->model, info.siv1v2si11v1.si11v1cpcmodel, CPCMODEL_LENGTH);
+    cpu_info->cpu_times.user = cpu_usage_avg;
+    /* TODO: implement the following */
+    cpu_info->cpu_times.sys = 0;
+    cpu_info->cpu_times.idle = 0;
+    cpu_info->cpu_times.irq = 0;
+    cpu_info->cpu_times.nice = 0;
+    ++cpu_info;
+    ++idx;
+  }
+
+  return 0;
+}
+
+
+static int uv__interface_addresses_v6(uv_interface_address_t** addresses,
+                                      int* count) {
+  uv_interface_address_t* address;
+  int sockfd;
+  int maxsize;
+  __net_ifconf6header_t ifc;
+  __net_ifconf6entry_t* ifr;
+  __net_ifconf6entry_t* p;
+  __net_ifconf6entry_t flg;
+
+  *count = 0;
+  /* Assume maximum buffer size allowable */
+  maxsize = 16384;
+
+  if (0 > (sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP)))
+    return UV__ERR(errno);
+
+  ifc.__nif6h_version = 1;
+  ifc.__nif6h_buflen = maxsize;
+  ifc.__nif6h_buffer = uv__calloc(1, maxsize);;
+
+  if (ioctl(sockfd, SIOCGIFCONF6, &ifc) == -1) {
+    uv__close(sockfd);
+    return UV__ERR(errno);
+  }
+
+
+  *count = 0;
+  ifr = (__net_ifconf6entry_t*)(ifc.__nif6h_buffer);
+  while ((char*)ifr < (char*)ifc.__nif6h_buffer + ifc.__nif6h_buflen) {
+    p = ifr;
+    ifr = (__net_ifconf6entry_t*)((char*)ifr + ifc.__nif6h_entrylen);
+
+    if (!(p->__nif6e_addr.sin6_family == AF_INET6 ||
+          p->__nif6e_addr.sin6_family == AF_INET))
+      continue;
+
+    if (!(p->__nif6e_flags & _NIF6E_FLAGS_ON_LINK_ACTIVE))
+      continue;
+
+    ++(*count);
+  }
+
+  /* Alloc the return interface structs */
+  *addresses = uv__malloc(*count * sizeof(uv_interface_address_t));
+  if (!(*addresses)) {
+    uv__close(sockfd);
+    return UV_ENOMEM;
+  }
+  address = *addresses;
+
+  ifr = (__net_ifconf6entry_t*)(ifc.__nif6h_buffer);
+  while ((char*)ifr < (char*)ifc.__nif6h_buffer + ifc.__nif6h_buflen) {
+    p = ifr;
+    ifr = (__net_ifconf6entry_t*)((char*)ifr + ifc.__nif6h_entrylen);
+
+    if (!(p->__nif6e_addr.sin6_family == AF_INET6 ||
+          p->__nif6e_addr.sin6_family == AF_INET))
+      continue;
+
+    if (!(p->__nif6e_flags & _NIF6E_FLAGS_ON_LINK_ACTIVE))
+      continue;
+
+    /* All conditions above must match count loop */
+
+    address->name = uv__strdup(p->__nif6e_name);
+
+    if (p->__nif6e_addr.sin6_family == AF_INET6)
+      address->address.address6 = *((struct sockaddr_in6*) &p->__nif6e_addr);
+    else
+      address->address.address4 = *((struct sockaddr_in*) &p->__nif6e_addr);
+
+    /* TODO: Retrieve netmask using SIOCGIFNETMASK ioctl */
+
+    address->is_internal = flg.__nif6e_flags & _NIF6E_FLAGS_LOOPBACK ? 1 : 0;
+    memset(address->phys_addr, 0, sizeof(address->phys_addr));
+    address++;
+  }
+
+  uv__close(sockfd);
+  return 0;
+}
+
+
+int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
+  uv_interface_address_t* address;
+  int sockfd;
+  int maxsize;
+  struct ifconf ifc;
+  struct ifreq flg;
+  struct ifreq* ifr;
+  struct ifreq* p;
+  int count_v6;
+
+  *count = 0;
+  *addresses = NULL;
+
+  /* get the ipv6 addresses first */
+  uv_interface_address_t* addresses_v6;
+  uv__interface_addresses_v6(&addresses_v6, &count_v6);
+
+  /* now get the ipv4 addresses */
+
+  /* Assume maximum buffer size allowable */
+  maxsize = 16384;
+
+  sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
+  if (0 > sockfd)
+    return UV__ERR(errno);
+
+  ifc.ifc_req = uv__calloc(1, maxsize);
+  ifc.ifc_len = maxsize;
+  if (ioctl(sockfd, SIOCGIFCONF, &ifc) == -1) {
+    uv__close(sockfd);
+    return UV__ERR(errno);
+  }
+
+#define MAX(a,b) (((a)>(b))?(a):(b))
+#define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))
+
+  /* Count all up and running ipv4/ipv6 addresses */
+  ifr = ifc.ifc_req;
+  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
+    p = ifr;
+    ifr = (struct ifreq*)
+      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
+
+    if (!(p->ifr_addr.sa_family == AF_INET6 ||
+          p->ifr_addr.sa_family == AF_INET))
+      continue;
+
+    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
+    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
+      uv__close(sockfd);
+      return UV__ERR(errno);
+    }
+
+    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
+      continue;
+
+    (*count)++;
+  }
+
+  if (*count == 0) {
+    uv__close(sockfd);
+    return 0;
+  }
+
+  /* Alloc the return interface structs */
+  *addresses = uv__malloc((*count + count_v6) *
+                          sizeof(uv_interface_address_t));
+
+  if (!(*addresses)) {
+    uv__close(sockfd);
+    return UV_ENOMEM;
+  }
+  address = *addresses;
+
+  /* copy over the ipv6 addresses */
+  memcpy(address, addresses_v6, count_v6 * sizeof(uv_interface_address_t));
+  address += count_v6;
+  *count += count_v6;
+  uv__free(addresses_v6);
+
+  ifr = ifc.ifc_req;
+  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
+    p = ifr;
+    ifr = (struct ifreq*)
+      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
+
+    if (!(p->ifr_addr.sa_family == AF_INET6 ||
+          p->ifr_addr.sa_family == AF_INET))
+      continue;
+
+    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
+    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
+      uv__close(sockfd);
+      return UV_ENOSYS;
+    }
+
+    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
+      continue;
+
+    /* All conditions above must match count loop */
+
+    address->name = uv__strdup(p->ifr_name);
+
+    if (p->ifr_addr.sa_family == AF_INET6) {
+      address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
+    } else {
+      address->address.address4 = *((struct sockaddr_in*) &p->ifr_addr);
+    }
+
+    address->is_internal = flg.ifr_flags & IFF_LOOPBACK ? 1 : 0;
+    memset(address->phys_addr, 0, sizeof(address->phys_addr));
+    address++;
+  }
+
+#undef ADDR_SIZE
+#undef MAX
+
+  uv__close(sockfd);
+  return 0;
+}
+
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses,
+                                 int count) {
+  int i;
+  for (i = 0; i < count; ++i)
+    uv__free(addresses[i].name);
+  uv__free(addresses);
+}
+
+
+void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
+  struct epoll_event* events;
+  struct epoll_event dummy;
+  uintptr_t i;
+  uintptr_t nfds;
+
+  assert(loop->watchers != NULL);
+  assert(fd >= 0);
+
+  events = (struct epoll_event*) loop->watchers[loop->nwatchers];
+  nfds = (uintptr_t) loop->watchers[loop->nwatchers + 1];
+  if (events != NULL)
+    /* Invalidate events with same file descriptor */
+    for (i = 0; i < nfds; i++)
+      if ((int) events[i].fd == fd)
+        events[i].fd = -1;
+
+  /* Remove the file descriptor from the epoll. */
+  if (loop->ep != NULL)
+    epoll_ctl(loop->ep, EPOLL_CTL_DEL, fd, &dummy);
+}
+
+
+int uv__io_check_fd(uv_loop_t* loop, int fd) {
+  struct pollfd p[1];
+  int rv;
+
+  p[0].fd = fd;
+  p[0].events = POLLIN;
+
+  do
+    rv = poll(p, 1, 0);
+  while (rv == -1 && errno == EINTR);
+
+  if (rv == -1)
+    abort();
+
+  if (p[0].revents & POLLNVAL)
+    return -1;
+
+  return 0;
+}
+
+
+void uv__fs_event_close(uv_fs_event_t* handle) {
+  uv_fs_event_stop(handle);
+}
+
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
+  return 0;
+}
+
+
+int uv_fs_event_start(uv_fs_event_t* handle, uv_fs_event_cb cb,
+                      const char* filename, unsigned int flags) {
+  uv__os390_epoll* ep;
+  _RFIS reg_struct;
+  char* path;
+  int rc;
+
+  if (uv__is_active(handle))
+    return UV_EINVAL;
+
+  ep = handle->loop->ep;
+  assert(ep->msg_queue != -1);
+
+  reg_struct.__rfis_cmd  = _RFIS_REG;
+  reg_struct.__rfis_qid  = ep->msg_queue;
+  reg_struct.__rfis_type = 1;
+  memcpy(reg_struct.__rfis_utok, &handle, sizeof(handle));
+
+  path = uv__strdup(filename);
+  if (path == NULL)
+    return UV_ENOMEM;
+
+  rc = __w_pioctl(path, _IOCC_REGFILEINT, sizeof(reg_struct), &reg_struct);
+  if (rc != 0)
+    return UV__ERR(errno);
+
+  uv__handle_start(handle);
+  handle->path = path;
+  handle->cb = cb;
+  memcpy(handle->rfis_rftok, reg_struct.__rfis_rftok,
+         sizeof(handle->rfis_rftok));
+
+  return 0;
+}
+
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  uv__os390_epoll* ep;
+  _RFIS reg_struct;
+  int rc;
+
+  if (!uv__is_active(handle))
+    return 0;
+
+  ep = handle->loop->ep;
+  assert(ep->msg_queue != -1);
+
+  reg_struct.__rfis_cmd  = _RFIS_UNREG;
+  reg_struct.__rfis_qid  = ep->msg_queue;
+  reg_struct.__rfis_type = 1;
+  memcpy(reg_struct.__rfis_rftok, handle->rfis_rftok,
+         sizeof(handle->rfis_rftok));
+
+  /*
+   * This call will take "/" as the path argument in case we
+   * don't care to supply the correct path. The system will simply
+   * ignore it.
+   */
+  rc = __w_pioctl("/", _IOCC_REGFILEINT, sizeof(reg_struct), &reg_struct);
+  if (rc != 0 && errno != EALREADY && errno != ENOENT)
+    abort();
+
+  uv__handle_stop(handle);
+
+  return 0;
+}
+
+
+static int os390_message_queue_handler(uv__os390_epoll* ep) {
+  uv_fs_event_t* handle;
+  int msglen;
+  int events;
+  _RFIM msg;
+
+  if (ep->msg_queue == -1)
+    return 0;
+
+  msglen = msgrcv(ep->msg_queue, &msg, sizeof(msg), 0, IPC_NOWAIT);
+
+  if (msglen == -1 && errno == ENOMSG)
+    return 0;
+
+  if (msglen == -1)
+    abort();
+
+  events = 0;
+  if (msg.__rfim_event == _RFIM_ATTR || msg.__rfim_event == _RFIM_WRITE)
+    events = UV_CHANGE;
+  else if (msg.__rfim_event == _RFIM_RENAME)
+    events = UV_RENAME;
+  else
+    /* Some event that we are not interested in. */
+    return 0;
+
+  handle = *(uv_fs_event_t**)(msg.__rfim_utok);
+  handle->cb(handle, uv__basename_r(handle->path), events, 0);
+  return 1;
+}
+
+
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  static const int max_safe_timeout = 1789569;
+  struct epoll_event events[1024];
+  struct epoll_event* pe;
+  struct epoll_event e;
+  uv__os390_epoll* ep;
+  int real_timeout;
+  QUEUE* q;
+  uv__io_t* w;
+  uint64_t base;
+  int count;
+  int nfds;
+  int fd;
+  int op;
+  int i;
+  int user_timeout;
+  int reset_timeout;
+
+  if (loop->nfds == 0) {
+    assert(QUEUE_EMPTY(&loop->watcher_queue));
+    return;
+  }
+
+  while (!QUEUE_EMPTY(&loop->watcher_queue)) {
+    uv_stream_t* stream;
+
+    q = QUEUE_HEAD(&loop->watcher_queue);
+    QUEUE_REMOVE(q);
+    QUEUE_INIT(q);
+    w = QUEUE_DATA(q, uv__io_t, watcher_queue);
+
+    assert(w->pevents != 0);
+    assert(w->fd >= 0);
+
+    stream= container_of(w, uv_stream_t, io_watcher);
+
+    assert(w->fd < (int) loop->nwatchers);
+
+    e.events = w->pevents;
+    e.fd = w->fd;
+
+    if (w->events == 0)
+      op = EPOLL_CTL_ADD;
+    else
+      op = EPOLL_CTL_MOD;
+
+    /* XXX Future optimization: do EPOLL_CTL_MOD lazily if we stop watching
+     * events, skip the syscall and squelch the events after epoll_wait().
+     */
+    if (epoll_ctl(loop->ep, op, w->fd, &e)) {
+      if (errno != EEXIST)
+        abort();
+
+      assert(op == EPOLL_CTL_ADD);
+
+      /* We've reactivated a file descriptor that's been watched before. */
+      if (epoll_ctl(loop->ep, EPOLL_CTL_MOD, w->fd, &e))
+        abort();
+    }
+
+    w->events = w->pevents;
+  }
+
+  assert(timeout >= -1);
+  base = loop->time;
+  count = 48; /* Benchmarks suggest this gives the best throughput. */
+  real_timeout = timeout;
+  int nevents = 0;
+
+  if (uv__get_internal_fields(loop)->flags & UV_METRICS_IDLE_TIME) {
+    reset_timeout = 1;
+    user_timeout = timeout;
+    timeout = 0;
+  } else {
+    reset_timeout = 0;
+  }
+
+  nfds = 0;
+  for (;;) {
+    /* Only need to set the provider_entry_time if timeout != 0. The function
+     * will return early if the loop isn't configured with UV_METRICS_IDLE_TIME.
+     */
+    if (timeout != 0)
+      uv__metrics_set_provider_entry_time(loop);
+
+    if (sizeof(int32_t) == sizeof(long) && timeout >= max_safe_timeout)
+      timeout = max_safe_timeout;
+
+    nfds = epoll_wait(loop->ep, events,
+                      ARRAY_SIZE(events), timeout);
+
+    /* Update loop->time unconditionally. It's tempting to skip the update when
+     * timeout == 0 (i.e. non-blocking poll) but there is no guarantee that the
+     * operating system didn't reschedule our process while in the syscall.
+     */
+    base = loop->time;
+    SAVE_ERRNO(uv__update_time(loop));
+    if (nfds == 0) {
+      assert(timeout != -1);
+
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+      }
+
+      if (timeout == -1)
+        continue;
+
+      if (timeout == 0)
+        return;
+
+      /* We may have been inside the system call for longer than |timeout|
+       * milliseconds so we need to update the timestamp to avoid drift.
+       */
+      goto update_timeout;
+    }
+
+    if (nfds == -1) {
+
+      if (errno != EINTR)
+        abort();
+
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+      }
+
+      if (timeout == -1)
+        continue;
+
+      if (timeout == 0)
+        return;
+
+      /* Interrupted by a signal. Update timeout and poll again. */
+      goto update_timeout;
+    }
+
+
+    assert(loop->watchers != NULL);
+    loop->watchers[loop->nwatchers] = (void*) events;
+    loop->watchers[loop->nwatchers + 1] = (void*) (uintptr_t) nfds;
+    for (i = 0; i < nfds; i++) {
+      pe = events + i;
+      fd = pe->fd;
+
+      /* Skip invalidated events, see uv__platform_invalidate_fd */
+      if (fd == -1)
+        continue;
+
+      ep = loop->ep;
+      if (pe->is_msg) {
+        os390_message_queue_handler(ep);
+        continue;
+      }
+
+      assert(fd >= 0);
+      assert((unsigned) fd < loop->nwatchers);
+
+      w = loop->watchers[fd];
+
+      if (w == NULL) {
+        /* File descriptor that we've stopped watching, disarm it.
+         *
+         * Ignore all errors because we may be racing with another thread
+         * when the file descriptor is closed.
+         */
+        epoll_ctl(loop->ep, EPOLL_CTL_DEL, fd, pe);
+        continue;
+      }
+
+      /* Give users only events they're interested in. Prevents spurious
+       * callbacks when previous callback invocation in this loop has stopped
+       * the current watcher. Also, filters out events that users has not
+       * requested us to watch.
+       */
+      pe->events &= w->pevents | POLLERR | POLLHUP;
+
+      if (pe->events == POLLERR || pe->events == POLLHUP)
+        pe->events |= w->pevents & (POLLIN | POLLOUT);
+
+      if (pe->events != 0) {
+        uv__metrics_update_idle_time(loop);
+        w->cb(loop, w, pe->events);
+        nevents++;
+      }
+    }
+    loop->watchers[loop->nwatchers] = NULL;
+    loop->watchers[loop->nwatchers + 1] = NULL;
+
+    if (reset_timeout != 0) {
+      timeout = user_timeout;
+      reset_timeout = 0;
+    }
+
+    if (nevents != 0) {
+      if (nfds == ARRAY_SIZE(events) && --count != 0) {
+        /* Poll for more events but don't block this time. */
+        timeout = 0;
+        continue;
+      }
+      return;
+    }
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    real_timeout -= (loop->time - base);
+    if (real_timeout <= 0)
+      return;
+
+    timeout = real_timeout;
+  }
+}
+
+void uv__set_process_title(const char* title) {
+  /* do nothing */
+}
+
+int uv__io_fork(uv_loop_t* loop) {
+  /*
+    Nullify the msg queue but don't close it because
+    it is still being used by the parent.
+  */
+  loop->ep = NULL;
+
+  uv__platform_loop_delete(loop);
+  return uv__platform_loop_init(loop);
+}

deps/libuv/src/unix/pipe.c

@@ -0,0 +1,381 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+
+int uv_pipe_init(uv_loop_t* loop, uv_pipe_t* handle, int ipc) {
+  uv__stream_init(loop, (uv_stream_t*)handle, UV_NAMED_PIPE);
+  handle->shutdown_req = NULL;
+  handle->connect_req = NULL;
+  handle->pipe_fname = NULL;
+  handle->ipc = ipc;
+  return 0;
+}
+
+
+int uv_pipe_bind(uv_pipe_t* handle, const char* name) {
+  struct sockaddr_un saddr;
+  const char* pipe_fname;
+  int sockfd;
+  int err;
+
+  pipe_fname = NULL;
+
+  /* Already bound? */
+  if (uv__stream_fd(handle) >= 0)
+    return UV_EINVAL;
+
+  /* Make a copy of the file name, it outlives this function's scope. */
+  pipe_fname = uv__strdup(name);
+  if (pipe_fname == NULL)
+    return UV_ENOMEM;
+
+  /* We've got a copy, don't touch the original any more. */
+  name = NULL;
+
+  err = uv__socket(AF_UNIX, SOCK_STREAM, 0);
+  if (err < 0)
+    goto err_socket;
+  sockfd = err;
+
+  memset(&saddr, 0, sizeof saddr);
+  uv__strscpy(saddr.sun_path, pipe_fname, sizeof(saddr.sun_path));
+  saddr.sun_family = AF_UNIX;
+
+  if (bind(sockfd, (struct sockaddr*)&saddr, sizeof saddr)) {
+    err = UV__ERR(errno);
+    /* Convert ENOENT to EACCES for compatibility with Windows. */
+    if (err == UV_ENOENT)
+      err = UV_EACCES;
+
+    uv__close(sockfd);
+    goto err_socket;
+  }
+
+  /* Success. */
+  handle->flags |= UV_HANDLE_BOUND;
+  handle->pipe_fname = pipe_fname; /* Is a strdup'ed copy. */
+  handle->io_watcher.fd = sockfd;
+  return 0;
+
+err_socket:
+  uv__free((void*)pipe_fname);
+  return err;
+}
+
+
+int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb) {
+  if (uv__stream_fd(handle) == -1)
+    return UV_EINVAL;
+
+  if (handle->ipc)
+    return UV_EINVAL;
+
+#if defined(__MVS__) || defined(__PASE__)
+  /* On zOS, backlog=0 has undefined behaviour */
+  /* On IBMi PASE, backlog=0 leads to "Connection refused" error */
+  if (backlog == 0)
+    backlog = 1;
+  else if (backlog < 0)
+    backlog = SOMAXCONN;
+#endif
+
+  if (listen(uv__stream_fd(handle), backlog))
+    return UV__ERR(errno);
+
+  handle->connection_cb = cb;
+  handle->io_watcher.cb = uv__server_io;
+  uv__io_start(handle->loop, &handle->io_watcher, POLLIN);
+  return 0;
+}
+
+
+void uv__pipe_close(uv_pipe_t* handle) {
+  if (handle->pipe_fname) {
+    /*
+     * Unlink the file system entity before closing the file descriptor.
+     * Doing it the other way around introduces a race where our process
+     * unlinks a socket with the same name that's just been created by
+     * another thread or process.
+     */
+    unlink(handle->pipe_fname);
+    uv__free((void*)handle->pipe_fname);
+    handle->pipe_fname = NULL;
+  }
+
+  uv__stream_close((uv_stream_t*)handle);
+}
+
+
+int uv_pipe_open(uv_pipe_t* handle, uv_file fd) {
+  int flags;
+  int mode;
+  int err;
+  flags = 0;
+
+  if (uv__fd_exists(handle->loop, fd))
+    return UV_EEXIST;
+
+  do
+    mode = fcntl(fd, F_GETFL);
+  while (mode == -1 && errno == EINTR);
+
+  if (mode == -1)
+    return UV__ERR(errno); /* according to docs, must be EBADF */
+
+  err = uv__nonblock(fd, 1);
+  if (err)
+    return err;
+
+#if defined(__APPLE__)
+  err = uv__stream_try_select((uv_stream_t*) handle, &fd);
+  if (err)
+    return err;
+#endif /* defined(__APPLE__) */
+
+  mode &= O_ACCMODE;
+  if (mode != O_WRONLY)
+    flags |= UV_HANDLE_READABLE;
+  if (mode != O_RDONLY)
+    flags |= UV_HANDLE_WRITABLE;
+
+  return uv__stream_open((uv_stream_t*)handle, fd, flags);
+}
+
+
+void uv_pipe_connect(uv_connect_t* req,
+                    uv_pipe_t* handle,
+                    const char* name,
+                    uv_connect_cb cb) {
+  struct sockaddr_un saddr;
+  int new_sock;
+  int err;
+  int r;
+
+  new_sock = (uv__stream_fd(handle) == -1);
+
+  if (new_sock) {
+    err = uv__socket(AF_UNIX, SOCK_STREAM, 0);
+    if (err < 0)
+      goto out;
+    handle->io_watcher.fd = err;
+  }
+
+  memset(&saddr, 0, sizeof saddr);
+  uv__strscpy(saddr.sun_path, name, sizeof(saddr.sun_path));
+  saddr.sun_family = AF_UNIX;
+
+  do {
+    r = connect(uv__stream_fd(handle),
+                (struct sockaddr*)&saddr, sizeof saddr);
+  }
+  while (r == -1 && errno == EINTR);
+
+  if (r == -1 && errno != EINPROGRESS) {
+    err = UV__ERR(errno);
+#if defined(__CYGWIN__) || defined(__MSYS__)
+    /* EBADF is supposed to mean that the socket fd is bad, but
+       Cygwin reports EBADF instead of ENOTSOCK when the file is
+       not a socket.  We do not expect to see a bad fd here
+       (e.g. due to new_sock), so translate the error.  */
+    if (err == UV_EBADF)
+      err = UV_ENOTSOCK;
+#endif
+    goto out;
+  }
+
+  err = 0;
+  if (new_sock) {
+    err = uv__stream_open((uv_stream_t*)handle,
+                          uv__stream_fd(handle),
+                          UV_HANDLE_READABLE | UV_HANDLE_WRITABLE);
+  }
+
+  if (err == 0)
+    uv__io_start(handle->loop, &handle->io_watcher, POLLOUT);
+
+out:
+  handle->delayed_error = err;
+  handle->connect_req = req;
+
+  uv__req_init(handle->loop, req, UV_CONNECT);
+  req->handle = (uv_stream_t*)handle;
+  req->cb = cb;
+  QUEUE_INIT(&req->queue);
+
+  /* Force callback to run on next tick in case of error. */
+  if (err)
+    uv__io_feed(handle->loop, &handle->io_watcher);
+
+}
+
+
+static int uv__pipe_getsockpeername(const uv_pipe_t* handle,
+                                    uv__peersockfunc func,
+                                    char* buffer,
+                                    size_t* size) {
+  struct sockaddr_un sa;
+  socklen_t addrlen;
+  int err;
+
+  addrlen = sizeof(sa);
+  memset(&sa, 0, addrlen);
+  err = uv__getsockpeername((const uv_handle_t*) handle,
+                            func,
+                            (struct sockaddr*) &sa,
+                            (int*) &addrlen);
+  if (err < 0) {
+    *size = 0;
+    return err;
+  }
+
+#if defined(__linux__)
+  if (sa.sun_path[0] == 0)
+    /* Linux abstract namespace */
+    addrlen -= offsetof(struct sockaddr_un, sun_path);
+  else
+#endif
+    addrlen = strlen(sa.sun_path);
+
+
+  if ((size_t)addrlen >= *size) {
+    *size = addrlen + 1;
+    return UV_ENOBUFS;
+  }
+
+  memcpy(buffer, sa.sun_path, addrlen);
+  *size = addrlen;
+
+  /* only null-terminate if it's not an abstract socket */
+  if (buffer[0] != '\0')
+    buffer[addrlen] = '\0';
+
+  return 0;
+}
+
+
+int uv_pipe_getsockname(const uv_pipe_t* handle, char* buffer, size_t* size) {
+  return uv__pipe_getsockpeername(handle, getsockname, buffer, size);
+}
+
+
+int uv_pipe_getpeername(const uv_pipe_t* handle, char* buffer, size_t* size) {
+  return uv__pipe_getsockpeername(handle, getpeername, buffer, size);
+}
+
+
+void uv_pipe_pending_instances(uv_pipe_t* handle, int count) {
+}
+
+
+int uv_pipe_pending_count(uv_pipe_t* handle) {
+  uv__stream_queued_fds_t* queued_fds;
+
+  if (!handle->ipc)
+    return 0;
+
+  if (handle->accepted_fd == -1)
+    return 0;
+
+  if (handle->queued_fds == NULL)
+    return 1;
+
+  queued_fds = handle->queued_fds;
+  return queued_fds->offset + 1;
+}
+
+
+uv_handle_type uv_pipe_pending_type(uv_pipe_t* handle) {
+  if (!handle->ipc)
+    return UV_UNKNOWN_HANDLE;
+
+  if (handle->accepted_fd == -1)
+    return UV_UNKNOWN_HANDLE;
+  else
+    return uv__handle_type(handle->accepted_fd);
+}
+
+
+int uv_pipe_chmod(uv_pipe_t* handle, int mode) {
+  unsigned desired_mode;
+  struct stat pipe_stat;
+  char* name_buffer;
+  size_t name_len;
+  int r;
+
+  if (handle == NULL || uv__stream_fd(handle) == -1)
+    return UV_EBADF;
+
+  if (mode != UV_READABLE &&
+      mode != UV_WRITABLE &&
+      mode != (UV_WRITABLE | UV_READABLE))
+    return UV_EINVAL;
+
+  /* Unfortunately fchmod does not work on all platforms, we will use chmod. */
+  name_len = 0;
+  r = uv_pipe_getsockname(handle, NULL, &name_len);
+  if (r != UV_ENOBUFS)
+    return r;
+
+  name_buffer = uv__malloc(name_len);
+  if (name_buffer == NULL)
+    return UV_ENOMEM;
+
+  r = uv_pipe_getsockname(handle, name_buffer, &name_len);
+  if (r != 0) {
+    uv__free(name_buffer);
+    return r;
+  }
+
+  /* stat must be used as fstat has a bug on Darwin */
+  if (stat(name_buffer, &pipe_stat) == -1) {
+    uv__free(name_buffer);
+    return -errno;
+  }
+
+  desired_mode = 0;
+  if (mode & UV_READABLE)
+    desired_mode |= S_IRUSR | S_IRGRP | S_IROTH;
+  if (mode & UV_WRITABLE)
+    desired_mode |= S_IWUSR | S_IWGRP | S_IWOTH;
+
+  /* Exit early if pipe already has desired mode. */
+  if ((pipe_stat.st_mode & desired_mode) == desired_mode) {
+    uv__free(name_buffer);
+    return 0;
+  }
+
+  pipe_stat.st_mode |= desired_mode;
+
+  r = chmod(name_buffer, pipe_stat.st_mode);
+  uv__free(name_buffer);
+
+  return r != -1 ? 0 : UV__ERR(errno);
+}

deps/libuv/src/unix/poll.c

@@ -0,0 +1,150 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+
+
+static void uv__poll_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
+  uv_poll_t* handle;
+  int pevents;
+
+  handle = container_of(w, uv_poll_t, io_watcher);
+
+  /*
+   * As documented in the kernel source fs/kernfs/file.c #780
+   * poll will return POLLERR|POLLPRI in case of sysfs
+   * polling. This does not happen in case of out-of-band
+   * TCP messages.
+   *
+   * The above is the case on (at least) FreeBSD and Linux.
+   *
+   * So to properly determine a POLLPRI or a POLLERR we need
+   * to check for both.
+   */
+  if ((events & POLLERR) && !(events & UV__POLLPRI)) {
+    uv__io_stop(loop, w, POLLIN | POLLOUT | UV__POLLRDHUP | UV__POLLPRI);
+    uv__handle_stop(handle);
+    handle->poll_cb(handle, UV_EBADF, 0);
+    return;
+  }
+
+  pevents = 0;
+  if (events & POLLIN)
+    pevents |= UV_READABLE;
+  if (events & UV__POLLPRI)
+    pevents |= UV_PRIORITIZED;
+  if (events & POLLOUT)
+    pevents |= UV_WRITABLE;
+  if (events & UV__POLLRDHUP)
+    pevents |= UV_DISCONNECT;
+
+  handle->poll_cb(handle, 0, pevents);
+}
+
+
+int uv_poll_init(uv_loop_t* loop, uv_poll_t* handle, int fd) {
+  int err;
+
+  if (uv__fd_exists(loop, fd))
+    return UV_EEXIST;
+
+  err = uv__io_check_fd(loop, fd);
+  if (err)
+    return err;
+
+  /* If ioctl(FIONBIO) reports ENOTTY, try fcntl(F_GETFL) + fcntl(F_SETFL).
+   * Workaround for e.g. kqueue fds not supporting ioctls.
+   */
+  err = uv__nonblock(fd, 1);
+  if (err == UV_ENOTTY)
+    if (uv__nonblock == uv__nonblock_ioctl)
+      err = uv__nonblock_fcntl(fd, 1);
+
+  if (err)
+    return err;
+
+  uv__handle_init(loop, (uv_handle_t*) handle, UV_POLL);
+  uv__io_init(&handle->io_watcher, uv__poll_io, fd);
+  handle->poll_cb = NULL;
+  return 0;
+}
+
+
+int uv_poll_init_socket(uv_loop_t* loop, uv_poll_t* handle,
+    uv_os_sock_t socket) {
+  return uv_poll_init(loop, handle, socket);
+}
+
+
+static void uv__poll_stop(uv_poll_t* handle) {
+  uv__io_stop(handle->loop,
+              &handle->io_watcher,
+              POLLIN | POLLOUT | UV__POLLRDHUP | UV__POLLPRI);
+  uv__handle_stop(handle);
+  uv__platform_invalidate_fd(handle->loop, handle->io_watcher.fd);
+}
+
+
+int uv_poll_stop(uv_poll_t* handle) {
+  assert(!uv__is_closing(handle));
+  uv__poll_stop(handle);
+  return 0;
+}
+
+
+int uv_poll_start(uv_poll_t* handle, int pevents, uv_poll_cb poll_cb) {
+  int events;
+
+  assert((pevents & ~(UV_READABLE | UV_WRITABLE | UV_DISCONNECT |
+                      UV_PRIORITIZED)) == 0);
+  assert(!uv__is_closing(handle));
+
+  uv__poll_stop(handle);
+
+  if (pevents == 0)
+    return 0;
+
+  events = 0;
+  if (pevents & UV_READABLE)
+    events |= POLLIN;
+  if (pevents & UV_PRIORITIZED)
+    events |= UV__POLLPRI;
+  if (pevents & UV_WRITABLE)
+    events |= POLLOUT;
+  if (pevents & UV_DISCONNECT)
+    events |= UV__POLLRDHUP;
+
+  uv__io_start(handle->loop, &handle->io_watcher, events);
+  uv__handle_start(handle);
+  handle->poll_cb = poll_cb;
+
+  return 0;
+}
+
+
+void uv__poll_close(uv_poll_t* handle) {
+  uv__poll_stop(handle);
+}

deps/libuv/src/unix/posix-hrtime.c

@@ -0,0 +1,35 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdint.h>
+#include <time.h>
+
+#undef NANOSEC
+#define NANOSEC ((uint64_t) 1e9)
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  struct timespec ts;
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+  return (((uint64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec);
+}

deps/libuv/src/unix/posix-poll.c

@@ -0,0 +1,374 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+/* POSIX defines poll() as a portable way to wait on file descriptors.
+ * Here we maintain a dynamically sized array of file descriptors and
+ * events to pass as the first argument to poll().
+ */
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <errno.h>
+#include <unistd.h>
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  loop->poll_fds = NULL;
+  loop->poll_fds_used = 0;
+  loop->poll_fds_size = 0;
+  loop->poll_fds_iterating = 0;
+  return 0;
+}
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+  uv__free(loop->poll_fds);
+  loop->poll_fds = NULL;
+}
+
+int uv__io_fork(uv_loop_t* loop) {
+  uv__platform_loop_delete(loop);
+  return uv__platform_loop_init(loop);
+}
+
+/* Allocate or dynamically resize our poll fds array.  */
+static void uv__pollfds_maybe_resize(uv_loop_t* loop) {
+  size_t i;
+  size_t n;
+  struct pollfd* p;
+
+  if (loop->poll_fds_used < loop->poll_fds_size)
+    return;
+
+  n = loop->poll_fds_size ? loop->poll_fds_size * 2 : 64;
+  p = uv__reallocf(loop->poll_fds, n * sizeof(*loop->poll_fds));
+  if (p == NULL)
+    abort();
+
+  loop->poll_fds = p;
+  for (i = loop->poll_fds_size; i < n; i++) {
+    loop->poll_fds[i].fd = -1;
+    loop->poll_fds[i].events = 0;
+    loop->poll_fds[i].revents = 0;
+  }
+  loop->poll_fds_size = n;
+}
+
+/* Primitive swap operation on poll fds array elements.  */
+static void uv__pollfds_swap(uv_loop_t* loop, size_t l, size_t r) {
+  struct pollfd pfd;
+  pfd = loop->poll_fds[l];
+  loop->poll_fds[l] = loop->poll_fds[r];
+  loop->poll_fds[r] = pfd;
+}
+
+/* Add a watcher's fd to our poll fds array with its pending events.  */
+static void uv__pollfds_add(uv_loop_t* loop, uv__io_t* w) {
+  size_t i;
+  struct pollfd* pe;
+
+  /* If the fd is already in the set just update its events.  */
+  assert(!loop->poll_fds_iterating);
+  for (i = 0; i < loop->poll_fds_used; ++i) {
+    if (loop->poll_fds[i].fd == w->fd) {
+      loop->poll_fds[i].events = w->pevents;
+      return;
+    }
+  }
+
+  /* Otherwise, allocate a new slot in the set for the fd.  */
+  uv__pollfds_maybe_resize(loop);
+  pe = &loop->poll_fds[loop->poll_fds_used++];
+  pe->fd = w->fd;
+  pe->events = w->pevents;
+}
+
+/* Remove a watcher's fd from our poll fds array.  */
+static void uv__pollfds_del(uv_loop_t* loop, int fd) {
+  size_t i;
+  assert(!loop->poll_fds_iterating);
+  for (i = 0; i < loop->poll_fds_used;) {
+    if (loop->poll_fds[i].fd == fd) {
+      /* swap to last position and remove */
+      --loop->poll_fds_used;
+      uv__pollfds_swap(loop, i, loop->poll_fds_used);
+      loop->poll_fds[loop->poll_fds_used].fd = -1;
+      loop->poll_fds[loop->poll_fds_used].events = 0;
+      loop->poll_fds[loop->poll_fds_used].revents = 0;
+      /* This method is called with an fd of -1 to purge the invalidated fds,
+       * so we may possibly have multiples to remove.
+       */
+      if (-1 != fd)
+        return;
+    } else {
+      /* We must only increment the loop counter when the fds do not match.
+       * Otherwise, when we are purging an invalidated fd, the value just
+       * swapped here from the previous end of the array will be skipped.
+       */
+       ++i;
+    }
+  }
+}
+
+
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  sigset_t* pset;
+  sigset_t set;
+  uint64_t time_base;
+  uint64_t time_diff;
+  QUEUE* q;
+  uv__io_t* w;
+  size_t i;
+  unsigned int nevents;
+  int nfds;
+  int have_signals;
+  struct pollfd* pe;
+  int fd;
+  int user_timeout;
+  int reset_timeout;
+
+  if (loop->nfds == 0) {
+    assert(QUEUE_EMPTY(&loop->watcher_queue));
+    return;
+  }
+
+  /* Take queued watchers and add their fds to our poll fds array.  */
+  while (!QUEUE_EMPTY(&loop->watcher_queue)) {
+    q = QUEUE_HEAD(&loop->watcher_queue);
+    QUEUE_REMOVE(q);
+    QUEUE_INIT(q);
+
+    w = QUEUE_DATA(q, uv__io_t, watcher_queue);
+    assert(w->pevents != 0);
+    assert(w->fd >= 0);
+    assert(w->fd < (int) loop->nwatchers);
+
+    uv__pollfds_add(loop, w);
+
+    w->events = w->pevents;
+  }
+
+  /* Prepare a set of signals to block around poll(), if any.  */
+  pset = NULL;
+  if (loop->flags & UV_LOOP_BLOCK_SIGPROF) {
+    pset = &set;
+    sigemptyset(pset);
+    sigaddset(pset, SIGPROF);
+  }
+
+  assert(timeout >= -1);
+  time_base = loop->time;
+
+  if (uv__get_internal_fields(loop)->flags & UV_METRICS_IDLE_TIME) {
+    reset_timeout = 1;
+    user_timeout = timeout;
+    timeout = 0;
+  } else {
+    reset_timeout = 0;
+  }
+
+  /* Loop calls to poll() and processing of results.  If we get some
+   * results from poll() but they turn out not to be interesting to
+   * our caller then we need to loop around and poll() again.
+   */
+  for (;;) {
+    /* Only need to set the provider_entry_time if timeout != 0. The function
+     * will return early if the loop isn't configured with UV_METRICS_IDLE_TIME.
+     */
+    if (timeout != 0)
+      uv__metrics_set_provider_entry_time(loop);
+
+    if (pset != NULL)
+      if (pthread_sigmask(SIG_BLOCK, pset, NULL))
+        abort();
+    nfds = poll(loop->poll_fds, (nfds_t)loop->poll_fds_used, timeout);
+    if (pset != NULL)
+      if (pthread_sigmask(SIG_UNBLOCK, pset, NULL))
+        abort();
+
+    /* Update loop->time unconditionally. It's tempting to skip the update when
+     * timeout == 0 (i.e. non-blocking poll) but there is no guarantee that the
+     * operating system didn't reschedule our process while in the syscall.
+     */
+    SAVE_ERRNO(uv__update_time(loop));
+
+    if (nfds == 0) {
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+        if (timeout == -1)
+          continue;
+        if (timeout > 0)
+          goto update_timeout;
+      }
+
+      assert(timeout != -1);
+      return;
+    }
+
+    if (nfds == -1) {
+      if (errno != EINTR)
+        abort();
+
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+      }
+
+      if (timeout == -1)
+        continue;
+
+      if (timeout == 0)
+        return;
+
+      /* Interrupted by a signal. Update timeout and poll again. */
+      goto update_timeout;
+    }
+
+    /* Tell uv__platform_invalidate_fd not to manipulate our array
+     * while we are iterating over it.
+     */
+    loop->poll_fds_iterating = 1;
+
+    /* Initialize a count of events that we care about.  */
+    nevents = 0;
+    have_signals = 0;
+
+    /* Loop over the entire poll fds array looking for returned events.  */
+    for (i = 0; i < loop->poll_fds_used; i++) {
+      pe = loop->poll_fds + i;
+      fd = pe->fd;
+
+      /* Skip invalidated events, see uv__platform_invalidate_fd.  */
+      if (fd == -1)
+        continue;
+
+      assert(fd >= 0);
+      assert((unsigned) fd < loop->nwatchers);
+
+      w = loop->watchers[fd];
+
+      if (w == NULL) {
+        /* File descriptor that we've stopped watching, ignore.  */
+        uv__platform_invalidate_fd(loop, fd);
+        continue;
+      }
+
+      /* Filter out events that user has not requested us to watch
+       * (e.g. POLLNVAL).
+       */
+      pe->revents &= w->pevents | POLLERR | POLLHUP;
+
+      if (pe->revents != 0) {
+        /* Run signal watchers last.  */
+        if (w == &loop->signal_io_watcher) {
+          have_signals = 1;
+        } else {
+          uv__metrics_update_idle_time(loop);
+          w->cb(loop, w, pe->revents);
+        }
+
+        nevents++;
+      }
+    }
+
+    if (reset_timeout != 0) {
+      timeout = user_timeout;
+      reset_timeout = 0;
+    }
+
+    if (have_signals != 0) {
+      uv__metrics_update_idle_time(loop);
+      loop->signal_io_watcher.cb(loop, &loop->signal_io_watcher, POLLIN);
+    }
+
+    loop->poll_fds_iterating = 0;
+
+    /* Purge invalidated fds from our poll fds array.  */
+    uv__pollfds_del(loop, -1);
+
+    if (have_signals != 0)
+      return;  /* Event loop should cycle now so don't poll again. */
+
+    if (nevents != 0)
+      return;
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    time_diff = loop->time - time_base;
+    if (time_diff >= (uint64_t) timeout)
+      return;
+
+    timeout -= time_diff;
+  }
+}
+
+/* Remove the given fd from our poll fds array because no one
+ * is interested in its events anymore.
+ */
+void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
+  size_t i;
+
+  assert(fd >= 0);
+
+  if (loop->poll_fds_iterating) {
+    /* uv__io_poll is currently iterating.  Just invalidate fd.  */
+    for (i = 0; i < loop->poll_fds_used; i++)
+      if (loop->poll_fds[i].fd == fd) {
+        loop->poll_fds[i].fd = -1;
+        loop->poll_fds[i].events = 0;
+        loop->poll_fds[i].revents = 0;
+      }
+  } else {
+    /* uv__io_poll is not iterating.  Delete fd from the set.  */
+    uv__pollfds_del(loop, fd);
+  }
+}
+
+/* Check whether the given fd is supported by poll().  */
+int uv__io_check_fd(uv_loop_t* loop, int fd) {
+  struct pollfd p[1];
+  int rv;
+
+  p[0].fd = fd;
+  p[0].events = POLLIN;
+
+  do
+    rv = poll(p, 1, 0);
+  while (rv == -1 && (errno == EINTR || errno == EAGAIN));
+
+  if (rv == -1)
+    return UV__ERR(errno);
+
+  if (p[0].revents & POLLNVAL)
+    return UV_EINVAL;
+
+  return 0;
+}

deps/libuv/src/unix/process.c

@@ -0,0 +1,595 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+
+#if defined(__APPLE__) && !TARGET_OS_IPHONE
+# include <crt_externs.h>
+# define environ (*_NSGetEnviron())
+#else
+extern char **environ;
+#endif
+
+#if defined(__linux__) || defined(__GLIBC__)
+# include <grp.h>
+#endif
+
+
+static void uv__chld(uv_signal_t* handle, int signum) {
+  uv_process_t* process;
+  uv_loop_t* loop;
+  int exit_status;
+  int term_signal;
+  int status;
+  pid_t pid;
+  QUEUE pending;
+  QUEUE* q;
+  QUEUE* h;
+
+  assert(signum == SIGCHLD);
+
+  QUEUE_INIT(&pending);
+  loop = handle->loop;
+
+  h = &loop->process_handles;
+  q = QUEUE_HEAD(h);
+  while (q != h) {
+    process = QUEUE_DATA(q, uv_process_t, queue);
+    q = QUEUE_NEXT(q);
+
+    do
+      pid = waitpid(process->pid, &status, WNOHANG);
+    while (pid == -1 && errno == EINTR);
+
+    if (pid == 0)
+      continue;
+
+    if (pid == -1) {
+      if (errno != ECHILD)
+        abort();
+      continue;
+    }
+
+    process->status = status;
+    QUEUE_REMOVE(&process->queue);
+    QUEUE_INSERT_TAIL(&pending, &process->queue);
+  }
+
+  h = &pending;
+  q = QUEUE_HEAD(h);
+  while (q != h) {
+    process = QUEUE_DATA(q, uv_process_t, queue);
+    q = QUEUE_NEXT(q);
+
+    QUEUE_REMOVE(&process->queue);
+    QUEUE_INIT(&process->queue);
+    uv__handle_stop(process);
+
+    if (process->exit_cb == NULL)
+      continue;
+
+    exit_status = 0;
+    if (WIFEXITED(process->status))
+      exit_status = WEXITSTATUS(process->status);
+
+    term_signal = 0;
+    if (WIFSIGNALED(process->status))
+      term_signal = WTERMSIG(process->status);
+
+    process->exit_cb(process, exit_status, term_signal);
+  }
+  assert(QUEUE_EMPTY(&pending));
+}
+
+
+static int uv__make_socketpair(int fds[2]) {
+#if defined(__FreeBSD__) || defined(__linux__)
+  if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, fds))
+    return UV__ERR(errno);
+
+  return 0;
+#else
+  int err;
+
+  if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds))
+    return UV__ERR(errno);
+
+  err = uv__cloexec(fds[0], 1);
+  if (err == 0)
+    err = uv__cloexec(fds[1], 1);
+
+  if (err != 0) {
+    uv__close(fds[0]);
+    uv__close(fds[1]);
+    return UV__ERR(errno);
+  }
+
+  return 0;
+#endif
+}
+
+
+int uv__make_pipe(int fds[2], int flags) {
+#if defined(__FreeBSD__) || defined(__linux__)
+  if (pipe2(fds, flags | O_CLOEXEC))
+    return UV__ERR(errno);
+
+  return 0;
+#else
+  if (pipe(fds))
+    return UV__ERR(errno);
+
+  if (uv__cloexec(fds[0], 1))
+    goto fail;
+
+  if (uv__cloexec(fds[1], 1))
+    goto fail;
+
+  if (flags & UV__F_NONBLOCK) {
+    if (uv__nonblock(fds[0], 1))
+      goto fail;
+
+    if (uv__nonblock(fds[1], 1))
+      goto fail;
+  }
+
+  return 0;
+
+fail:
+  uv__close(fds[0]);
+  uv__close(fds[1]);
+  return UV__ERR(errno);
+#endif
+}
+
+
+/*
+ * Used for initializing stdio streams like options.stdin_stream. Returns
+ * zero on success. See also the cleanup section in uv_spawn().
+ */
+static int uv__process_init_stdio(uv_stdio_container_t* container, int fds[2]) {
+  int mask;
+  int fd;
+
+  mask = UV_IGNORE | UV_CREATE_PIPE | UV_INHERIT_FD | UV_INHERIT_STREAM;
+
+  switch (container->flags & mask) {
+  case UV_IGNORE:
+    return 0;
+
+  case UV_CREATE_PIPE:
+    assert(container->data.stream != NULL);
+    if (container->data.stream->type != UV_NAMED_PIPE)
+      return UV_EINVAL;
+    else
+      return uv__make_socketpair(fds);
+
+  case UV_INHERIT_FD:
+  case UV_INHERIT_STREAM:
+    if (container->flags & UV_INHERIT_FD)
+      fd = container->data.fd;
+    else
+      fd = uv__stream_fd(container->data.stream);
+
+    if (fd == -1)
+      return UV_EINVAL;
+
+    fds[1] = fd;
+    return 0;
+
+  default:
+    assert(0 && "Unexpected flags");
+    return UV_EINVAL;
+  }
+}
+
+
+static int uv__process_open_stream(uv_stdio_container_t* container,
+                                   int pipefds[2]) {
+  int flags;
+  int err;
+
+  if (!(container->flags & UV_CREATE_PIPE) || pipefds[0] < 0)
+    return 0;
+
+  err = uv__close(pipefds[1]);
+  if (err != 0)
+    abort();
+
+  pipefds[1] = -1;
+  uv__nonblock(pipefds[0], 1);
+
+  flags = 0;
+  if (container->flags & UV_WRITABLE_PIPE)
+    flags |= UV_HANDLE_READABLE;
+  if (container->flags & UV_READABLE_PIPE)
+    flags |= UV_HANDLE_WRITABLE;
+
+  return uv__stream_open(container->data.stream, pipefds[0], flags);
+}
+
+
+static void uv__process_close_stream(uv_stdio_container_t* container) {
+  if (!(container->flags & UV_CREATE_PIPE)) return;
+  uv__stream_close(container->data.stream);
+}
+
+
+static void uv__write_int(int fd, int val) {
+  ssize_t n;
+
+  do
+    n = write(fd, &val, sizeof(val));
+  while (n == -1 && errno == EINTR);
+
+  if (n == -1 && errno == EPIPE)
+    return; /* parent process has quit */
+
+  assert(n == sizeof(val));
+}
+
+
+#if !(defined(__APPLE__) && (TARGET_OS_TV || TARGET_OS_WATCH))
+/* execvp is marked __WATCHOS_PROHIBITED __TVOS_PROHIBITED, so must be
+ * avoided. Since this isn't called on those targets, the function
+ * doesn't even need to be defined for them.
+ */
+static void uv__process_child_init(const uv_process_options_t* options,
+                                   int stdio_count,
+                                   int (*pipes)[2],
+                                   int error_fd) {
+  sigset_t set;
+  int close_fd;
+  int use_fd;
+  int err;
+  int fd;
+  int n;
+
+  if (options->flags & UV_PROCESS_DETACHED)
+    setsid();
+
+  /* First duplicate low numbered fds, since it's not safe to duplicate them,
+   * they could get replaced. Example: swapping stdout and stderr; without
+   * this fd 2 (stderr) would be duplicated into fd 1, thus making both
+   * stdout and stderr go to the same fd, which was not the intention. */
+  for (fd = 0; fd < stdio_count; fd++) {
+    use_fd = pipes[fd][1];
+    if (use_fd < 0 || use_fd >= fd)
+      continue;
+    pipes[fd][1] = fcntl(use_fd, F_DUPFD, stdio_count);
+    if (pipes[fd][1] == -1) {
+      uv__write_int(error_fd, UV__ERR(errno));
+      _exit(127);
+    }
+  }
+
+  for (fd = 0; fd < stdio_count; fd++) {
+    close_fd = pipes[fd][0];
+    use_fd = pipes[fd][1];
+
+    if (use_fd < 0) {
+      if (fd >= 3)
+        continue;
+      else {
+        /* redirect stdin, stdout and stderr to /dev/null even if UV_IGNORE is
+         * set
+         */
+        use_fd = open("/dev/null", fd == 0 ? O_RDONLY : O_RDWR);
+        close_fd = use_fd;
+
+        if (use_fd < 0) {
+          uv__write_int(error_fd, UV__ERR(errno));
+          _exit(127);
+        }
+      }
+    }
+
+    if (fd == use_fd)
+      uv__cloexec_fcntl(use_fd, 0);
+    else
+      fd = dup2(use_fd, fd);
+
+    if (fd == -1) {
+      uv__write_int(error_fd, UV__ERR(errno));
+      _exit(127);
+    }
+
+    if (fd <= 2)
+      uv__nonblock_fcntl(fd, 0);
+
+    if (close_fd >= stdio_count)
+      uv__close(close_fd);
+  }
+
+  for (fd = 0; fd < stdio_count; fd++) {
+    use_fd = pipes[fd][1];
+
+    if (use_fd >= stdio_count)
+      uv__close(use_fd);
+  }
+
+  if (options->cwd != NULL && chdir(options->cwd)) {
+    uv__write_int(error_fd, UV__ERR(errno));
+    _exit(127);
+  }
+
+  if (options->flags & (UV_PROCESS_SETUID | UV_PROCESS_SETGID)) {
+    /* When dropping privileges from root, the `setgroups` call will
+     * remove any extraneous groups. If we don't call this, then
+     * even though our uid has dropped, we may still have groups
+     * that enable us to do super-user things. This will fail if we
+     * aren't root, so don't bother checking the return value, this
+     * is just done as an optimistic privilege dropping function.
+     */
+    SAVE_ERRNO(setgroups(0, NULL));
+  }
+
+  if ((options->flags & UV_PROCESS_SETGID) && setgid(options->gid)) {
+    uv__write_int(error_fd, UV__ERR(errno));
+    _exit(127);
+  }
+
+  if ((options->flags & UV_PROCESS_SETUID) && setuid(options->uid)) {
+    uv__write_int(error_fd, UV__ERR(errno));
+    _exit(127);
+  }
+
+  if (options->env != NULL) {
+    environ = options->env;
+  }
+
+  /* Reset signal disposition.  Use a hard-coded limit because NSIG
+   * is not fixed on Linux: it's either 32, 34 or 64, depending on
+   * whether RT signals are enabled.  We are not allowed to touch
+   * RT signal handlers, glibc uses them internally.
+   */
+  for (n = 1; n < 32; n += 1) {
+    if (n == SIGKILL || n == SIGSTOP)
+      continue;  /* Can't be changed. */
+
+#if defined(__HAIKU__)
+    if (n == SIGKILLTHR)
+      continue;  /* Can't be changed. */
+#endif
+
+    if (SIG_ERR != signal(n, SIG_DFL))
+      continue;
+
+    uv__write_int(error_fd, UV__ERR(errno));
+    _exit(127);
+  }
+
+  /* Reset signal mask. */
+  sigemptyset(&set);
+  err = pthread_sigmask(SIG_SETMASK, &set, NULL);
+
+  if (err != 0) {
+    uv__write_int(error_fd, UV__ERR(err));
+    _exit(127);
+  }
+
+  execvp(options->file, options->args);
+  uv__write_int(error_fd, UV__ERR(errno));
+  _exit(127);
+}
+#endif
+
+
+int uv_spawn(uv_loop_t* loop,
+             uv_process_t* process,
+             const uv_process_options_t* options) {
+#if defined(__APPLE__) && (TARGET_OS_TV || TARGET_OS_WATCH)
+  /* fork is marked __WATCHOS_PROHIBITED __TVOS_PROHIBITED. */
+  return UV_ENOSYS;
+#else
+  int signal_pipe[2] = { -1, -1 };
+  int pipes_storage[8][2];
+  int (*pipes)[2];
+  int stdio_count;
+  ssize_t r;
+  pid_t pid;
+  int err;
+  int exec_errorno;
+  int i;
+  int status;
+
+  assert(options->file != NULL);
+  assert(!(options->flags & ~(UV_PROCESS_DETACHED |
+                              UV_PROCESS_SETGID |
+                              UV_PROCESS_SETUID |
+                              UV_PROCESS_WINDOWS_HIDE |
+                              UV_PROCESS_WINDOWS_HIDE_CONSOLE |
+                              UV_PROCESS_WINDOWS_HIDE_GUI |
+                              UV_PROCESS_WINDOWS_VERBATIM_ARGUMENTS)));
+
+  uv__handle_init(loop, (uv_handle_t*)process, UV_PROCESS);
+  QUEUE_INIT(&process->queue);
+
+  stdio_count = options->stdio_count;
+  if (stdio_count < 3)
+    stdio_count = 3;
+
+  err = UV_ENOMEM;
+  pipes = pipes_storage;
+  if (stdio_count > (int) ARRAY_SIZE(pipes_storage))
+    pipes = uv__malloc(stdio_count * sizeof(*pipes));
+
+  if (pipes == NULL)
+    goto error;
+
+  for (i = 0; i < stdio_count; i++) {
+    pipes[i][0] = -1;
+    pipes[i][1] = -1;
+  }
+
+  for (i = 0; i < options->stdio_count; i++) {
+    err = uv__process_init_stdio(options->stdio + i, pipes[i]);
+    if (err)
+      goto error;
+  }
+
+  /* This pipe is used by the parent to wait until
+   * the child has called `execve()`. We need this
+   * to avoid the following race condition:
+   *
+   *    if ((pid = fork()) > 0) {
+   *      kill(pid, SIGTERM);
+   *    }
+   *    else if (pid == 0) {
+   *      execve("/bin/cat", argp, envp);
+   *    }
+   *
+   * The parent sends a signal immediately after forking.
+   * Since the child may not have called `execve()` yet,
+   * there is no telling what process receives the signal,
+   * our fork or /bin/cat.
+   *
+   * To avoid ambiguity, we create a pipe with both ends
+   * marked close-on-exec. Then, after the call to `fork()`,
+   * the parent polls the read end until it EOFs or errors with EPIPE.
+   */
+  err = uv__make_pipe(signal_pipe, 0);
+  if (err)
+    goto error;
+
+  uv_signal_start(&loop->child_watcher, uv__chld, SIGCHLD);
+
+  /* Acquire write lock to prevent opening new fds in worker threads */
+  uv_rwlock_wrlock(&loop->cloexec_lock);
+  pid = fork();
+
+  if (pid == -1) {
+    err = UV__ERR(errno);
+    uv_rwlock_wrunlock(&loop->cloexec_lock);
+    uv__close(signal_pipe[0]);
+    uv__close(signal_pipe[1]);
+    goto error;
+  }
+
+  if (pid == 0) {
+    uv__process_child_init(options, stdio_count, pipes, signal_pipe[1]);
+    abort();
+  }
+
+  /* Release lock in parent process */
+  uv_rwlock_wrunlock(&loop->cloexec_lock);
+  uv__close(signal_pipe[1]);
+
+  process->status = 0;
+  exec_errorno = 0;
+  do
+    r = read(signal_pipe[0], &exec_errorno, sizeof(exec_errorno));
+  while (r == -1 && errno == EINTR);
+
+  if (r == 0)
+    ; /* okay, EOF */
+  else if (r == sizeof(exec_errorno)) {
+    do
+      err = waitpid(pid, &status, 0); /* okay, read errorno */
+    while (err == -1 && errno == EINTR);
+    assert(err == pid);
+  } else if (r == -1 && errno == EPIPE) {
+    do
+      err = waitpid(pid, &status, 0); /* okay, got EPIPE */
+    while (err == -1 && errno == EINTR);
+    assert(err == pid);
+  } else
+    abort();
+
+  uv__close_nocheckstdio(signal_pipe[0]);
+
+  for (i = 0; i < options->stdio_count; i++) {
+    err = uv__process_open_stream(options->stdio + i, pipes[i]);
+    if (err == 0)
+      continue;
+
+    while (i--)
+      uv__process_close_stream(options->stdio + i);
+
+    goto error;
+  }
+
+  /* Only activate this handle if exec() happened successfully */
+  if (exec_errorno == 0) {
+    QUEUE_INSERT_TAIL(&loop->process_handles, &process->queue);
+    uv__handle_start(process);
+  }
+
+  process->pid = pid;
+  process->exit_cb = options->exit_cb;
+
+  if (pipes != pipes_storage)
+    uv__free(pipes);
+
+  return exec_errorno;
+
+error:
+  if (pipes != NULL) {
+    for (i = 0; i < stdio_count; i++) {
+      if (i < options->stdio_count)
+        if (options->stdio[i].flags & (UV_INHERIT_FD | UV_INHERIT_STREAM))
+          continue;
+      if (pipes[i][0] != -1)
+        uv__close_nocheckstdio(pipes[i][0]);
+      if (pipes[i][1] != -1)
+        uv__close_nocheckstdio(pipes[i][1]);
+    }
+
+    if (pipes != pipes_storage)
+      uv__free(pipes);
+  }
+
+  return err;
+#endif
+}
+
+
+int uv_process_kill(uv_process_t* process, int signum) {
+  return uv_kill(process->pid, signum);
+}
+
+
+int uv_kill(int pid, int signum) {
+  if (kill(pid, signum))
+    return UV__ERR(errno);
+  else
+    return 0;
+}
+
+
+void uv__process_close(uv_process_t* handle) {
+  QUEUE_REMOVE(&handle->queue);
+  uv__handle_stop(handle);
+  if (QUEUE_EMPTY(&handle->loop->process_handles))
+    uv_signal_stop(&handle->loop->child_watcher);
+}

deps/libuv/src/unix/procfs-exepath.c

@@ -0,0 +1,45 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stddef.h>
+#include <unistd.h>
+
+int uv_exepath(char* buffer, size_t* size) {
+  ssize_t n;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  n = *size - 1;
+  if (n > 0)
+    n = readlink("/proc/self/exe", buffer, n);
+
+  if (n == -1)
+    return UV__ERR(errno);
+
+  buffer[n] = '\0';
+  *size = n;
+
+  return 0;
+}

deps/libuv/src/unix/proctitle.c

@@ -0,0 +1,159 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+struct uv__process_title {
+  char* str;
+  size_t len;  /* Length of the current process title. */
+  size_t cap;  /* Maximum capacity. Computed once in uv_setup_args(). */
+};
+
+extern void uv__set_process_title(const char* title);
+
+static uv_mutex_t process_title_mutex;
+static uv_once_t process_title_mutex_once = UV_ONCE_INIT;
+static struct uv__process_title process_title;
+static void* args_mem;
+
+
+static void init_process_title_mutex_once(void) {
+  uv_mutex_init(&process_title_mutex);
+}
+
+
+char** uv_setup_args(int argc, char** argv) {
+  struct uv__process_title pt;
+  char** new_argv;
+  size_t size;
+  char* s;
+  int i;
+
+  if (argc <= 0)
+    return argv;
+
+  pt.str = argv[0];
+  pt.len = strlen(argv[0]);
+  pt.cap = pt.len + 1;
+
+  /* Calculate how much memory we need for the argv strings. */
+  size = pt.cap;
+  for (i = 1; i < argc; i++)
+    size += strlen(argv[i]) + 1;
+
+  /* Add space for the argv pointers. */
+  size += (argc + 1) * sizeof(char*);
+
+  new_argv = uv__malloc(size);
+  if (new_argv == NULL)
+    return argv;
+
+  /* Copy over the strings and set up the pointer table. */
+  i = 0;
+  s = (char*) &new_argv[argc + 1];
+  size = pt.cap;
+  goto loop;
+
+  for (/* empty */; i < argc; i++) {
+    size = strlen(argv[i]) + 1;
+  loop:
+    memcpy(s, argv[i], size);
+    new_argv[i] = s;
+    s += size;
+  }
+  new_argv[i] = NULL;
+
+  /* argv is not adjacent on z/os, we use just argv[0] on that platform. */
+#ifndef __MVS__
+  pt.cap = argv[i - 1] + size - argv[0];
+#endif
+
+  args_mem = new_argv;
+  process_title = pt;
+
+  return new_argv;
+}
+
+
+int uv_set_process_title(const char* title) {
+  struct uv__process_title* pt;
+  size_t len;
+
+  /* If uv_setup_args wasn't called or failed, we can't continue. */
+  if (args_mem == NULL)
+    return UV_ENOBUFS;
+
+  pt = &process_title;
+  len = strlen(title);
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+
+  if (len >= pt->cap) {
+    len = 0;
+    if (pt->cap > 0)
+      len = pt->cap - 1;
+  }
+
+  memcpy(pt->str, title, len);
+  memset(pt->str + len, '\0', pt->cap - len);
+  pt->len = len;
+
+  uv_mutex_unlock(&process_title_mutex);
+
+  return 0;
+}
+
+
+int uv_get_process_title(char* buffer, size_t size) {
+  if (buffer == NULL || size == 0)
+    return UV_EINVAL;
+
+  /* If uv_setup_args wasn't called or failed, we can't continue. */
+  if (args_mem == NULL)
+    return UV_ENOBUFS;
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+
+  if (size <= process_title.len) {
+    uv_mutex_unlock(&process_title_mutex);
+    return UV_ENOBUFS;
+  }
+
+  if (process_title.len != 0)
+    memcpy(buffer, process_title.str, process_title.len + 1);
+
+  buffer[process_title.len] = '\0';
+
+  uv_mutex_unlock(&process_title_mutex);
+
+  return 0;
+}
+
+
+void uv__process_title_cleanup(void) {
+  uv__free(args_mem);  /* Keep valgrind happy. */
+  args_mem = NULL;
+}

deps/libuv/src/unix/pthread-fixes.c

@@ -0,0 +1,58 @@
+/* Copyright (c) 2013, Sony Mobile Communications AB
+ * Copyright (c) 2012, Google Inc.
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+
+     * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+       * Redistributions in binary form must reproduce the above
+   copyright notice, this list of conditions and the following disclaimer
+   in the documentation and/or other materials provided with the
+   distribution.
+       * Neither the name of Google Inc. nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* Android versions < 4.1 have a broken pthread_sigmask. */
+#include "uv-common.h"
+
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+
+int uv__pthread_sigmask(int how, const sigset_t* set, sigset_t* oset) {
+  static int workaround;
+  int err;
+
+  if (uv__load_relaxed(&workaround)) {
+    return sigprocmask(how, set, oset);
+  } else {
+    err = pthread_sigmask(how, set, oset);
+    if (err) {
+      if (err == EINVAL && sigprocmask(how, set, oset) == 0) {
+        uv__store_relaxed(&workaround, 1);
+        return 0;
+      } else {
+        return -1;
+      }
+    }
+  }
+
+  return 0;
+}

deps/libuv/src/unix/qnx.c

@@ -0,0 +1,137 @@
+/* Copyright libuv contributors. All rights reserved.
+  *
+  * Permission is hereby granted, free of charge, to any person obtaining a copy
+  * of this software and associated documentation files (the "Software"), to
+  * deal in the Software without restriction, including without limitation the
+  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+  * sell copies of the Software, and to permit persons to whom the Software is
+  * furnished to do so, subject to the following conditions:
+  *
+  * The above copyright notice and this permission notice shall be included in
+  * all copies or substantial portions of the Software.
+  *
+  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+  * IN THE SOFTWARE.
+  */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <string.h>
+#include <sys/process.h>
+#include <sys/neutrino.h>
+#include <sys/memmsg.h>
+#include <sys/syspage.h>
+#include <sys/procfs.h>
+
+static void
+get_mem_info(uint64_t* totalmem, uint64_t* freemem) {
+  mem_info_t msg;
+
+  memset(&msg, 0, sizeof(msg));
+  msg.i.type = _MEM_INFO;
+  msg.i.fd = -1;
+
+  if (MsgSend(MEMMGR_COID, &msg.i, sizeof(msg.i), &msg.o, sizeof(msg.o))
+      != -1) {
+    *totalmem = msg.o.info.__posix_tmi_total;
+    *freemem = msg.o.info.posix_tmi_length;
+  } else {
+    *totalmem = 0;
+    *freemem = 0;
+  }
+}
+
+
+void uv_loadavg(double avg[3]) {
+  avg[0] = 0.0;
+  avg[1] = 0.0;
+  avg[2] = 0.0;
+}
+
+
+int uv_exepath(char* buffer, size_t* size) {
+  char path[PATH_MAX];
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  realpath(_cmdname(NULL), path);
+  strlcpy(buffer, path, *size);
+  *size = strlen(buffer);
+  return 0;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  uint64_t totalmem;
+  uint64_t freemem;
+  get_mem_info(&totalmem, &freemem);
+  return freemem;
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  uint64_t totalmem;
+  uint64_t freemem;
+  get_mem_info(&totalmem, &freemem);
+  return totalmem;
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  int fd;
+  procfs_asinfo asinfo;
+
+  fd = uv__open_cloexec("/proc/self/ctl", O_RDONLY);
+  if (fd == -1)
+    return UV__ERR(errno);
+
+  if (devctl(fd, DCMD_PROC_ASINFO, &asinfo, sizeof(asinfo), 0) == -1) {
+    uv__close(fd);
+    return UV__ERR(errno);
+  }
+
+  uv__close(fd);
+  *rss = asinfo.rss;
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  struct qtime_entry* qtime = _SYSPAGE_ENTRY(_syspage_ptr, qtime);
+  *uptime = (qtime->nsec / 1000000000.0);
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  struct cpuinfo_entry* cpuinfo =
+    (struct cpuinfo_entry*)_SYSPAGE_ENTRY(_syspage_ptr, new_cpuinfo);
+  size_t cpuinfo_size = _SYSPAGE_ELEMENT_SIZE(_syspage_ptr, cpuinfo);
+  struct strings_entry* strings = _SYSPAGE_ENTRY(_syspage_ptr, strings);
+  int num_cpus = _syspage_ptr->num_cpu;
+  int i;
+
+  *count = num_cpus;
+  *cpu_infos = uv__malloc(num_cpus * sizeof(**cpu_infos));
+  if (*cpu_infos == NULL)
+    return UV_ENOMEM;
+
+  for (i = 0; i < num_cpus; i++) {
+    (*cpu_infos)[i].model = strdup(&strings->data[cpuinfo->name]);
+    (*cpu_infos)[i].speed = cpuinfo->speed;
+    SYSPAGE_ARRAY_ADJ_OFFSET(cpuinfo, cpuinfo, cpuinfo_size);
+  }
+
+  return 0;
+}

deps/libuv/src/unix/random-devurandom.c

@@ -0,0 +1,93 @@
+/* Copyright libuv contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <sys/stat.h>
+#include <unistd.h>
+
+static uv_once_t once = UV_ONCE_INIT;
+static int status;
+
+
+int uv__random_readpath(const char* path, void* buf, size_t buflen) {
+  struct stat s;
+  size_t pos;
+  ssize_t n;
+  int fd;
+
+  fd = uv__open_cloexec(path, O_RDONLY);
+
+  if (fd < 0)
+    return fd;
+
+  if (fstat(fd, &s)) {
+    uv__close(fd);
+    return UV__ERR(errno);
+  }
+
+  if (!S_ISCHR(s.st_mode)) {
+    uv__close(fd);
+    return UV_EIO;
+  }
+
+  for (pos = 0; pos != buflen; pos += n) {
+    do
+      n = read(fd, (char*) buf + pos, buflen - pos);
+    while (n == -1 && errno == EINTR);
+
+    if (n == -1) {
+      uv__close(fd);
+      return UV__ERR(errno);
+    }
+
+    if (n == 0) {
+      uv__close(fd);
+      return UV_EIO;
+    }
+  }
+
+  uv__close(fd);
+  return 0;
+}
+
+
+static void uv__random_devurandom_init(void) {
+  char c;
+
+  /* Linux's random(4) man page suggests applications should read at least
+   * once from /dev/random before switching to /dev/urandom in order to seed
+   * the system RNG. Reads from /dev/random can of course block indefinitely
+   * until entropy is available but that's the point.
+   */
+  status = uv__random_readpath("/dev/random", &c, 1);
+}
+
+
+int uv__random_devurandom(void* buf, size_t buflen) {
+  uv_once(&once, uv__random_devurandom_init);
+
+  if (status != 0)
+    return status;
+
+  return uv__random_readpath("/dev/urandom", buf, buflen);
+}

deps/libuv/src/unix/random-getentropy.c

@@ -0,0 +1,57 @@
+/* Copyright libuv contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stddef.h>
+#include <dlfcn.h>
+
+typedef int (*uv__getentropy_cb)(void *, size_t);
+
+static uv__getentropy_cb uv__getentropy;
+static uv_once_t once = UV_ONCE_INIT;
+
+
+static void uv__random_getentropy_init(void) {
+  uv__getentropy = (uv__getentropy_cb) dlsym(RTLD_DEFAULT, "getentropy");
+}
+
+
+int uv__random_getentropy(void* buf, size_t buflen) {
+  size_t pos;
+  size_t stride;
+
+  uv_once(&once, uv__random_getentropy_init);
+
+  if (uv__getentropy == NULL)
+    return UV_ENOSYS;
+
+  /* getentropy() returns an error for requests > 256 bytes. */
+  for (pos = 0, stride = 256; pos + stride < buflen; pos += stride)
+    if (uv__getentropy((char *) buf + pos, stride))
+      return UV__ERR(errno);
+
+  if (uv__getentropy((char *) buf + pos, buflen - pos))
+    return UV__ERR(errno);
+
+  return 0;
+}

deps/libuv/src/unix/random-getrandom.c

@@ -0,0 +1,88 @@
+/* Copyright libuv contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#ifdef __linux__
+
+#include "linux-syscalls.h"
+
+#define uv__random_getrandom_init() 0
+
+#else  /* !__linux__ */
+
+#include <stddef.h>
+#include <dlfcn.h>
+
+typedef ssize_t (*uv__getrandom_cb)(void *, size_t, unsigned);
+
+static uv__getrandom_cb uv__getrandom;
+static uv_once_t once = UV_ONCE_INIT;
+
+static void uv__random_getrandom_init_once(void) {
+  uv__getrandom = (uv__getrandom_cb) dlsym(RTLD_DEFAULT, "getrandom");
+}
+
+static int uv__random_getrandom_init(void) {
+  uv_once(&once, uv__random_getrandom_init_once);
+
+  if (uv__getrandom == NULL)
+    return UV_ENOSYS;
+
+  return 0;
+}
+
+#endif  /* !__linux__ */
+
+int uv__random_getrandom(void* buf, size_t buflen) {
+  ssize_t n;
+  size_t pos;
+  int rc;
+
+  rc = uv__random_getrandom_init();
+  if (rc != 0)
+    return rc;
+
+  for (pos = 0; pos != buflen; pos += n) {
+    do {
+      n = buflen - pos;
+
+      /* Most getrandom() implementations promise that reads <= 256 bytes
+       * will always succeed and won't be interrupted by signals.
+       * It's therefore useful to split it up in smaller reads because
+       * one big read may, in theory, continuously fail with EINTR.
+       */
+      if (n > 256)
+        n = 256;
+
+      n = uv__getrandom((char *) buf + pos, n, 0);
+    } while (n == -1 && errno == EINTR);
+
+    if (n == -1)
+      return UV__ERR(errno);
+
+    if (n == 0)
+      return UV_EIO;
+  }
+
+  return 0;
+}

deps/libuv/src/unix/random-sysctl-linux.c

@@ -0,0 +1,99 @@
+/* Copyright libuv contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <errno.h>
+#include <string.h>
+
+#include <syscall.h>
+#include <unistd.h>
+
+
+struct uv__sysctl_args {
+  int* name;
+  int nlen;
+  void* oldval;
+  size_t* oldlenp;
+  void* newval;
+  size_t newlen;
+  unsigned long unused[4];
+};
+
+
+int uv__random_sysctl(void* buf, size_t buflen) {
+  static int name[] = {1 /*CTL_KERN*/, 40 /*KERN_RANDOM*/, 6 /*RANDOM_UUID*/};
+  struct uv__sysctl_args args;
+  char uuid[16];
+  char* p;
+  char* pe;
+  size_t n;
+
+  p = buf;
+  pe = p + buflen;
+
+  while (p < pe) {
+    memset(&args, 0, sizeof(args));
+
+    args.name = name;
+    args.nlen = ARRAY_SIZE(name);
+    args.oldval = uuid;
+    args.oldlenp = &n;
+    n = sizeof(uuid);
+
+    /* Emits a deprecation warning with some kernels but that seems like
+     * an okay trade-off for the fallback of the fallback: this function is
+     * only called when neither getrandom(2) nor /dev/urandom are available.
+     * Fails with ENOSYS on kernels configured without CONFIG_SYSCTL_SYSCALL.
+     * At least arm64 never had a _sysctl system call and therefore doesn't
+     * have a SYS__sysctl define either.
+     */
+#ifdef SYS__sysctl
+    if (syscall(SYS__sysctl, &args) == -1)
+      return UV__ERR(errno);
+#else
+    {
+      (void) &args;
+      return UV_ENOSYS;
+    }
+#endif
+
+    if (n != sizeof(uuid))
+      return UV_EIO;  /* Can't happen. */
+
+    /* uuid[] is now a type 4 UUID. Bytes 6 and 8 (counting from zero) contain
+     * 4 and 5 bits of entropy, respectively. For ease of use, we skip those
+     * and only use 14 of the 16 bytes.
+     */
+    uuid[6] = uuid[14];
+    uuid[8] = uuid[15];
+
+    n = pe - p;
+    if (n > 14)
+      n = 14;
+
+    memcpy(p, uuid, n);
+    p += n;
+  }
+
+  return 0;
+}

deps/libuv/src/unix/signal.c

@@ -0,0 +1,558 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifndef SA_RESTART
+# define SA_RESTART 0
+#endif
+
+typedef struct {
+  uv_signal_t* handle;
+  int signum;
+} uv__signal_msg_t;
+
+RB_HEAD(uv__signal_tree_s, uv_signal_s);
+
+
+static int uv__signal_unlock(void);
+static int uv__signal_start(uv_signal_t* handle,
+                            uv_signal_cb signal_cb,
+                            int signum,
+                            int oneshot);
+static void uv__signal_event(uv_loop_t* loop, uv__io_t* w, unsigned int events);
+static int uv__signal_compare(uv_signal_t* w1, uv_signal_t* w2);
+static void uv__signal_stop(uv_signal_t* handle);
+static void uv__signal_unregister_handler(int signum);
+
+
+static uv_once_t uv__signal_global_init_guard = UV_ONCE_INIT;
+static struct uv__signal_tree_s uv__signal_tree =
+    RB_INITIALIZER(uv__signal_tree);
+static int uv__signal_lock_pipefd[2] = { -1, -1 };
+
+RB_GENERATE_STATIC(uv__signal_tree_s,
+                   uv_signal_s, tree_entry,
+                   uv__signal_compare)
+
+static void uv__signal_global_reinit(void);
+
+static void uv__signal_global_init(void) {
+  if (uv__signal_lock_pipefd[0] == -1)
+    /* pthread_atfork can register before and after handlers, one
+     * for each child. This only registers one for the child. That
+     * state is both persistent and cumulative, so if we keep doing
+     * it the handler functions will be called multiple times. Thus
+     * we only want to do it once.
+     */
+    if (pthread_atfork(NULL, NULL, &uv__signal_global_reinit))
+      abort();
+
+  uv__signal_global_reinit();
+}
+
+
+void uv__signal_cleanup(void) {
+  /* We can only use signal-safe functions here.
+   * That includes read/write and close, fortunately.
+   * We do all of this directly here instead of resetting
+   * uv__signal_global_init_guard because
+   * uv__signal_global_once_init is only called from uv_loop_init
+   * and this needs to function in existing loops.
+   */
+  if (uv__signal_lock_pipefd[0] != -1) {
+    uv__close(uv__signal_lock_pipefd[0]);
+    uv__signal_lock_pipefd[0] = -1;
+  }
+
+  if (uv__signal_lock_pipefd[1] != -1) {
+    uv__close(uv__signal_lock_pipefd[1]);
+    uv__signal_lock_pipefd[1] = -1;
+  }
+}
+
+
+static void uv__signal_global_reinit(void) {
+  uv__signal_cleanup();
+
+  if (uv__make_pipe(uv__signal_lock_pipefd, 0))
+    abort();
+
+  if (uv__signal_unlock())
+    abort();
+}
+
+
+void uv__signal_global_once_init(void) {
+  uv_once(&uv__signal_global_init_guard, uv__signal_global_init);
+}
+
+
+static int uv__signal_lock(void) {
+  int r;
+  char data;
+
+  do {
+    r = read(uv__signal_lock_pipefd[0], &data, sizeof data);
+  } while (r < 0 && errno == EINTR);
+
+  return (r < 0) ? -1 : 0;
+}
+
+
+static int uv__signal_unlock(void) {
+  int r;
+  char data = 42;
+
+  do {
+    r = write(uv__signal_lock_pipefd[1], &data, sizeof data);
+  } while (r < 0 && errno == EINTR);
+
+  return (r < 0) ? -1 : 0;
+}
+
+
+static void uv__signal_block_and_lock(sigset_t* saved_sigmask) {
+  sigset_t new_mask;
+
+  if (sigfillset(&new_mask))
+    abort();
+
+  /* to shut up valgrind */
+  sigemptyset(saved_sigmask);
+  if (pthread_sigmask(SIG_SETMASK, &new_mask, saved_sigmask))
+    abort();
+
+  if (uv__signal_lock())
+    abort();
+}
+
+
+static void uv__signal_unlock_and_unblock(sigset_t* saved_sigmask) {
+  if (uv__signal_unlock())
+    abort();
+
+  if (pthread_sigmask(SIG_SETMASK, saved_sigmask, NULL))
+    abort();
+}
+
+
+static uv_signal_t* uv__signal_first_handle(int signum) {
+  /* This function must be called with the signal lock held. */
+  uv_signal_t lookup;
+  uv_signal_t* handle;
+
+  lookup.signum = signum;
+  lookup.flags = 0;
+  lookup.loop = NULL;
+
+  handle = RB_NFIND(uv__signal_tree_s, &uv__signal_tree, &lookup);
+
+  if (handle != NULL && handle->signum == signum)
+    return handle;
+
+  return NULL;
+}
+
+
+static void uv__signal_handler(int signum) {
+  uv__signal_msg_t msg;
+  uv_signal_t* handle;
+  int saved_errno;
+
+  saved_errno = errno;
+  memset(&msg, 0, sizeof msg);
+
+  if (uv__signal_lock()) {
+    errno = saved_errno;
+    return;
+  }
+
+  for (handle = uv__signal_first_handle(signum);
+       handle != NULL && handle->signum == signum;
+       handle = RB_NEXT(uv__signal_tree_s, &uv__signal_tree, handle)) {
+    int r;
+
+    msg.signum = signum;
+    msg.handle = handle;
+
+    /* write() should be atomic for small data chunks, so the entire message
+     * should be written at once. In theory the pipe could become full, in
+     * which case the user is out of luck.
+     */
+    do {
+      r = write(handle->loop->signal_pipefd[1], &msg, sizeof msg);
+    } while (r == -1 && errno == EINTR);
+
+    assert(r == sizeof msg ||
+           (r == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)));
+
+    if (r != -1)
+      handle->caught_signals++;
+  }
+
+  uv__signal_unlock();
+  errno = saved_errno;
+}
+
+
+static int uv__signal_register_handler(int signum, int oneshot) {
+  /* When this function is called, the signal lock must be held. */
+  struct sigaction sa;
+
+  /* XXX use a separate signal stack? */
+  memset(&sa, 0, sizeof(sa));
+  if (sigfillset(&sa.sa_mask))
+    abort();
+  sa.sa_handler = uv__signal_handler;
+  sa.sa_flags = SA_RESTART;
+  if (oneshot)
+    sa.sa_flags |= SA_RESETHAND;
+
+  /* XXX save old action so we can restore it later on? */
+  if (sigaction(signum, &sa, NULL))
+    return UV__ERR(errno);
+
+  return 0;
+}
+
+
+static void uv__signal_unregister_handler(int signum) {
+  /* When this function is called, the signal lock must be held. */
+  struct sigaction sa;
+
+  memset(&sa, 0, sizeof(sa));
+  sa.sa_handler = SIG_DFL;
+
+  /* sigaction can only fail with EINVAL or EFAULT; an attempt to deregister a
+   * signal implies that it was successfully registered earlier, so EINVAL
+   * should never happen.
+   */
+  if (sigaction(signum, &sa, NULL))
+    abort();
+}
+
+
+static int uv__signal_loop_once_init(uv_loop_t* loop) {
+  int err;
+
+  /* Return if already initialized. */
+  if (loop->signal_pipefd[0] != -1)
+    return 0;
+
+  err = uv__make_pipe(loop->signal_pipefd, UV__F_NONBLOCK);
+  if (err)
+    return err;
+
+  uv__io_init(&loop->signal_io_watcher,
+              uv__signal_event,
+              loop->signal_pipefd[0]);
+  uv__io_start(loop, &loop->signal_io_watcher, POLLIN);
+
+  return 0;
+}
+
+
+int uv__signal_loop_fork(uv_loop_t* loop) {
+  uv__io_stop(loop, &loop->signal_io_watcher, POLLIN);
+  uv__close(loop->signal_pipefd[0]);
+  uv__close(loop->signal_pipefd[1]);
+  loop->signal_pipefd[0] = -1;
+  loop->signal_pipefd[1] = -1;
+  return uv__signal_loop_once_init(loop);
+}
+
+
+void uv__signal_loop_cleanup(uv_loop_t* loop) {
+  QUEUE* q;
+
+  /* Stop all the signal watchers that are still attached to this loop. This
+   * ensures that the (shared) signal tree doesn't contain any invalid entries
+   * entries, and that signal handlers are removed when appropriate.
+   * It's safe to use QUEUE_FOREACH here because the handles and the handle
+   * queue are not modified by uv__signal_stop().
+   */
+  QUEUE_FOREACH(q, &loop->handle_queue) {
+    uv_handle_t* handle = QUEUE_DATA(q, uv_handle_t, handle_queue);
+
+    if (handle->type == UV_SIGNAL)
+      uv__signal_stop((uv_signal_t*) handle);
+  }
+
+  if (loop->signal_pipefd[0] != -1) {
+    uv__close(loop->signal_pipefd[0]);
+    loop->signal_pipefd[0] = -1;
+  }
+
+  if (loop->signal_pipefd[1] != -1) {
+    uv__close(loop->signal_pipefd[1]);
+    loop->signal_pipefd[1] = -1;
+  }
+}
+
+
+int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle) {
+  int err;
+
+  err = uv__signal_loop_once_init(loop);
+  if (err)
+    return err;
+
+  uv__handle_init(loop, (uv_handle_t*) handle, UV_SIGNAL);
+  handle->signum = 0;
+  handle->caught_signals = 0;
+  handle->dispatched_signals = 0;
+
+  return 0;
+}
+
+
+void uv__signal_close(uv_signal_t* handle) {
+  uv__signal_stop(handle);
+}
+
+
+int uv_signal_start(uv_signal_t* handle, uv_signal_cb signal_cb, int signum) {
+  return uv__signal_start(handle, signal_cb, signum, 0);
+}
+
+
+int uv_signal_start_oneshot(uv_signal_t* handle,
+                            uv_signal_cb signal_cb,
+                            int signum) {
+  return uv__signal_start(handle, signal_cb, signum, 1);
+}
+
+
+static int uv__signal_start(uv_signal_t* handle,
+                            uv_signal_cb signal_cb,
+                            int signum,
+                            int oneshot) {
+  sigset_t saved_sigmask;
+  int err;
+  uv_signal_t* first_handle;
+
+  assert(!uv__is_closing(handle));
+
+  /* If the user supplies signum == 0, then return an error already. If the
+   * signum is otherwise invalid then uv__signal_register will find out
+   * eventually.
+   */
+  if (signum == 0)
+    return UV_EINVAL;
+
+  /* Short circuit: if the signal watcher is already watching {signum} don't
+   * go through the process of deregistering and registering the handler.
+   * Additionally, this avoids pending signals getting lost in the small
+   * time frame that handle->signum == 0.
+   */
+  if (signum == handle->signum) {
+    handle->signal_cb = signal_cb;
+    return 0;
+  }
+
+  /* If the signal handler was already active, stop it first. */
+  if (handle->signum != 0) {
+    uv__signal_stop(handle);
+  }
+
+  uv__signal_block_and_lock(&saved_sigmask);
+
+  /* If at this point there are no active signal watchers for this signum (in
+   * any of the loops), it's time to try and register a handler for it here.
+   * Also in case there's only one-shot handlers and a regular handler comes in.
+   */
+  first_handle = uv__signal_first_handle(signum);
+  if (first_handle == NULL ||
+      (!oneshot && (first_handle->flags & UV_SIGNAL_ONE_SHOT))) {
+    err = uv__signal_register_handler(signum, oneshot);
+    if (err) {
+      /* Registering the signal handler failed. Must be an invalid signal. */
+      uv__signal_unlock_and_unblock(&saved_sigmask);
+      return err;
+    }
+  }
+
+  handle->signum = signum;
+  if (oneshot)
+    handle->flags |= UV_SIGNAL_ONE_SHOT;
+
+  RB_INSERT(uv__signal_tree_s, &uv__signal_tree, handle);
+
+  uv__signal_unlock_and_unblock(&saved_sigmask);
+
+  handle->signal_cb = signal_cb;
+  uv__handle_start(handle);
+
+  return 0;
+}
+
+
+static void uv__signal_event(uv_loop_t* loop,
+                             uv__io_t* w,
+                             unsigned int events) {
+  uv__signal_msg_t* msg;
+  uv_signal_t* handle;
+  char buf[sizeof(uv__signal_msg_t) * 32];
+  size_t bytes, end, i;
+  int r;
+
+  bytes = 0;
+  end = 0;
+
+  do {
+    r = read(loop->signal_pipefd[0], buf + bytes, sizeof(buf) - bytes);
+
+    if (r == -1 && errno == EINTR)
+      continue;
+
+    if (r == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)) {
+      /* If there are bytes in the buffer already (which really is extremely
+       * unlikely if possible at all) we can't exit the function here. We'll
+       * spin until more bytes are read instead.
+       */
+      if (bytes > 0)
+        continue;
+
+      /* Otherwise, there was nothing there. */
+      return;
+    }
+
+    /* Other errors really should never happen. */
+    if (r == -1)
+      abort();
+
+    bytes += r;
+
+    /* `end` is rounded down to a multiple of sizeof(uv__signal_msg_t). */
+    end = (bytes / sizeof(uv__signal_msg_t)) * sizeof(uv__signal_msg_t);
+
+    for (i = 0; i < end; i += sizeof(uv__signal_msg_t)) {
+      msg = (uv__signal_msg_t*) (buf + i);
+      handle = msg->handle;
+
+      if (msg->signum == handle->signum) {
+        assert(!(handle->flags & UV_HANDLE_CLOSING));
+        handle->signal_cb(handle, handle->signum);
+      }
+
+      handle->dispatched_signals++;
+
+      if (handle->flags & UV_SIGNAL_ONE_SHOT)
+        uv__signal_stop(handle);
+    }
+
+    bytes -= end;
+
+    /* If there are any "partial" messages left, move them to the start of the
+     * the buffer, and spin. This should not happen.
+     */
+    if (bytes) {
+      memmove(buf, buf + end, bytes);
+      continue;
+    }
+  } while (end == sizeof buf);
+}
+
+
+static int uv__signal_compare(uv_signal_t* w1, uv_signal_t* w2) {
+  int f1;
+  int f2;
+  /* Compare signums first so all watchers with the same signnum end up
+   * adjacent.
+   */
+  if (w1->signum < w2->signum) return -1;
+  if (w1->signum > w2->signum) return 1;
+
+  /* Handlers without UV_SIGNAL_ONE_SHOT set will come first, so if the first
+   * handler returned is a one-shot handler, the rest will be too.
+   */
+  f1 = w1->flags & UV_SIGNAL_ONE_SHOT;
+  f2 = w2->flags & UV_SIGNAL_ONE_SHOT;
+  if (f1 < f2) return -1;
+  if (f1 > f2) return 1;
+
+  /* Sort by loop pointer, so we can easily look up the first item after
+   * { .signum = x, .loop = NULL }.
+   */
+  if (w1->loop < w2->loop) return -1;
+  if (w1->loop > w2->loop) return 1;
+
+  if (w1 < w2) return -1;
+  if (w1 > w2) return 1;
+
+  return 0;
+}
+
+
+int uv_signal_stop(uv_signal_t* handle) {
+  assert(!uv__is_closing(handle));
+  uv__signal_stop(handle);
+  return 0;
+}
+
+
+static void uv__signal_stop(uv_signal_t* handle) {
+  uv_signal_t* removed_handle;
+  sigset_t saved_sigmask;
+  uv_signal_t* first_handle;
+  int rem_oneshot;
+  int first_oneshot;
+  int ret;
+
+  /* If the watcher wasn't started, this is a no-op. */
+  if (handle->signum == 0)
+    return;
+
+  uv__signal_block_and_lock(&saved_sigmask);
+
+  removed_handle = RB_REMOVE(uv__signal_tree_s, &uv__signal_tree, handle);
+  assert(removed_handle == handle);
+  (void) removed_handle;
+
+  /* Check if there are other active signal watchers observing this signal. If
+   * not, unregister the signal handler.
+   */
+  first_handle = uv__signal_first_handle(handle->signum);
+  if (first_handle == NULL) {
+    uv__signal_unregister_handler(handle->signum);
+  } else {
+    rem_oneshot = handle->flags & UV_SIGNAL_ONE_SHOT;
+    first_oneshot = first_handle->flags & UV_SIGNAL_ONE_SHOT;
+    if (first_oneshot && !rem_oneshot) {
+      ret = uv__signal_register_handler(handle->signum, 1);
+      assert(ret == 0);
+      (void)ret;
+    }
+  }
+
+  uv__signal_unlock_and_unblock(&saved_sigmask);
+
+  handle->signum = 0;
+  uv__handle_stop(handle);
+}

deps/libuv/src/unix/spinlock.h

@@ -0,0 +1,53 @@
+/* Copyright (c) 2013, Ben Noordhuis <info@bnoordhuis.nl>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef UV_SPINLOCK_H_
+#define UV_SPINLOCK_H_
+
+#include "internal.h"  /* ACCESS_ONCE, UV_UNUSED */
+#include "atomic-ops.h"
+
+#define UV_SPINLOCK_INITIALIZER { 0 }
+
+typedef struct {
+  int lock;
+} uv_spinlock_t;
+
+UV_UNUSED(static void uv_spinlock_init(uv_spinlock_t* spinlock));
+UV_UNUSED(static void uv_spinlock_lock(uv_spinlock_t* spinlock));
+UV_UNUSED(static void uv_spinlock_unlock(uv_spinlock_t* spinlock));
+UV_UNUSED(static int uv_spinlock_trylock(uv_spinlock_t* spinlock));
+
+UV_UNUSED(static void uv_spinlock_init(uv_spinlock_t* spinlock)) {
+  ACCESS_ONCE(int, spinlock->lock) = 0;
+}
+
+UV_UNUSED(static void uv_spinlock_lock(uv_spinlock_t* spinlock)) {
+  while (!uv_spinlock_trylock(spinlock)) cpu_relax();
+}
+
+UV_UNUSED(static void uv_spinlock_unlock(uv_spinlock_t* spinlock)) {
+  ACCESS_ONCE(int, spinlock->lock) = 0;
+}
+
+UV_UNUSED(static int uv_spinlock_trylock(uv_spinlock_t* spinlock)) {
+  /* TODO(bnoordhuis) Maybe change to a ticket lock to guarantee fair queueing.
+   * Not really critical until we have locks that are (frequently) contended
+   * for by several threads.
+   */
+  return 0 == cmpxchgi(&spinlock->lock, 0, 1);
+}
+
+#endif  /* UV_SPINLOCK_H_ */

deps/libuv/src/unix/sunos.c

@@ -0,0 +1,867 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#ifndef SUNOS_NO_IFADDRS
+# include <ifaddrs.h>
+#endif
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_arp.h>
+#include <sys/sockio.h>
+
+#include <sys/loadavg.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <kstat.h>
+#include <fcntl.h>
+
+#include <sys/port.h>
+#include <port.h>
+
+#define PORT_FIRED 0x69
+#define PORT_UNUSED 0x0
+#define PORT_LOADED 0x99
+#define PORT_DELETED -1
+
+#if (!defined(_LP64)) && (_FILE_OFFSET_BITS - 0 == 64)
+#define PROCFS_FILE_OFFSET_BITS_HACK 1
+#undef _FILE_OFFSET_BITS
+#else
+#define PROCFS_FILE_OFFSET_BITS_HACK 0
+#endif
+
+#include <procfs.h>
+
+#if (PROCFS_FILE_OFFSET_BITS_HACK - 0 == 1)
+#define _FILE_OFFSET_BITS 64
+#endif
+
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  int err;
+  int fd;
+
+  loop->fs_fd = -1;
+  loop->backend_fd = -1;
+
+  fd = port_create();
+  if (fd == -1)
+    return UV__ERR(errno);
+
+  err = uv__cloexec(fd, 1);
+  if (err) {
+    uv__close(fd);
+    return err;
+  }
+  loop->backend_fd = fd;
+
+  return 0;
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+  if (loop->fs_fd != -1) {
+    uv__close(loop->fs_fd);
+    loop->fs_fd = -1;
+  }
+
+  if (loop->backend_fd != -1) {
+    uv__close(loop->backend_fd);
+    loop->backend_fd = -1;
+  }
+}
+
+
+int uv__io_fork(uv_loop_t* loop) {
+#if defined(PORT_SOURCE_FILE)
+  if (loop->fs_fd != -1) {
+    /* stop the watcher before we blow away its fileno */
+    uv__io_stop(loop, &loop->fs_event_watcher, POLLIN);
+  }
+#endif
+  uv__platform_loop_delete(loop);
+  return uv__platform_loop_init(loop);
+}
+
+
+void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
+  struct port_event* events;
+  uintptr_t i;
+  uintptr_t nfds;
+
+  assert(loop->watchers != NULL);
+  assert(fd >= 0);
+
+  events = (struct port_event*) loop->watchers[loop->nwatchers];
+  nfds = (uintptr_t) loop->watchers[loop->nwatchers + 1];
+  if (events == NULL)
+    return;
+
+  /* Invalidate events with same file descriptor */
+  for (i = 0; i < nfds; i++)
+    if ((int) events[i].portev_object == fd)
+      events[i].portev_object = -1;
+}
+
+
+int uv__io_check_fd(uv_loop_t* loop, int fd) {
+  if (port_associate(loop->backend_fd, PORT_SOURCE_FD, fd, POLLIN, 0))
+    return UV__ERR(errno);
+
+  if (port_dissociate(loop->backend_fd, PORT_SOURCE_FD, fd)) {
+    perror("(libuv) port_dissociate()");
+    abort();
+  }
+
+  return 0;
+}
+
+
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  struct port_event events[1024];
+  struct port_event* pe;
+  struct timespec spec;
+  QUEUE* q;
+  uv__io_t* w;
+  sigset_t* pset;
+  sigset_t set;
+  uint64_t base;
+  uint64_t diff;
+  uint64_t idle_poll;
+  unsigned int nfds;
+  unsigned int i;
+  int saved_errno;
+  int have_signals;
+  int nevents;
+  int count;
+  int err;
+  int fd;
+  int user_timeout;
+  int reset_timeout;
+
+  if (loop->nfds == 0) {
+    assert(QUEUE_EMPTY(&loop->watcher_queue));
+    return;
+  }
+
+  while (!QUEUE_EMPTY(&loop->watcher_queue)) {
+    q = QUEUE_HEAD(&loop->watcher_queue);
+    QUEUE_REMOVE(q);
+    QUEUE_INIT(q);
+
+    w = QUEUE_DATA(q, uv__io_t, watcher_queue);
+    assert(w->pevents != 0);
+
+    if (port_associate(loop->backend_fd,
+                       PORT_SOURCE_FD,
+                       w->fd,
+                       w->pevents,
+                       0)) {
+      perror("(libuv) port_associate()");
+      abort();
+    }
+
+    w->events = w->pevents;
+  }
+
+  pset = NULL;
+  if (loop->flags & UV_LOOP_BLOCK_SIGPROF) {
+    pset = &set;
+    sigemptyset(pset);
+    sigaddset(pset, SIGPROF);
+  }
+
+  assert(timeout >= -1);
+  base = loop->time;
+  count = 48; /* Benchmarks suggest this gives the best throughput. */
+
+  if (uv__get_internal_fields(loop)->flags & UV_METRICS_IDLE_TIME) {
+    reset_timeout = 1;
+    user_timeout = timeout;
+    timeout = 0;
+  } else {
+    reset_timeout = 0;
+  }
+
+  for (;;) {
+    /* Only need to set the provider_entry_time if timeout != 0. The function
+     * will return early if the loop isn't configured with UV_METRICS_IDLE_TIME.
+     */
+    if (timeout != 0)
+      uv__metrics_set_provider_entry_time(loop);
+
+    if (timeout != -1) {
+      spec.tv_sec = timeout / 1000;
+      spec.tv_nsec = (timeout % 1000) * 1000000;
+    }
+
+    /* Work around a kernel bug where nfds is not updated. */
+    events[0].portev_source = 0;
+
+    nfds = 1;
+    saved_errno = 0;
+
+    if (pset != NULL)
+      pthread_sigmask(SIG_BLOCK, pset, NULL);
+
+    err = port_getn(loop->backend_fd,
+                    events,
+                    ARRAY_SIZE(events),
+                    &nfds,
+                    timeout == -1 ? NULL : &spec);
+
+    if (pset != NULL)
+      pthread_sigmask(SIG_UNBLOCK, pset, NULL);
+
+    if (err) {
+      /* Work around another kernel bug: port_getn() may return events even
+       * on error.
+       */
+      if (errno == EINTR || errno == ETIME) {
+        saved_errno = errno;
+      } else {
+        perror("(libuv) port_getn()");
+        abort();
+      }
+    }
+
+    /* Update loop->time unconditionally. It's tempting to skip the update when
+     * timeout == 0 (i.e. non-blocking poll) but there is no guarantee that the
+     * operating system didn't reschedule our process while in the syscall.
+     */
+    SAVE_ERRNO(uv__update_time(loop));
+
+    if (events[0].portev_source == 0) {
+      if (reset_timeout != 0) {
+        timeout = user_timeout;
+        reset_timeout = 0;
+      }
+
+      if (timeout == 0)
+        return;
+
+      if (timeout == -1)
+        continue;
+
+      goto update_timeout;
+    }
+
+    if (nfds == 0) {
+      assert(timeout != -1);
+      return;
+    }
+
+    have_signals = 0;
+    nevents = 0;
+
+    assert(loop->watchers != NULL);
+    loop->watchers[loop->nwatchers] = (void*) events;
+    loop->watchers[loop->nwatchers + 1] = (void*) (uintptr_t) nfds;
+    for (i = 0; i < nfds; i++) {
+      pe = events + i;
+      fd = pe->portev_object;
+
+      /* Skip invalidated events, see uv__platform_invalidate_fd */
+      if (fd == -1)
+        continue;
+
+      assert(fd >= 0);
+      assert((unsigned) fd < loop->nwatchers);
+
+      w = loop->watchers[fd];
+
+      /* File descriptor that we've stopped watching, ignore. */
+      if (w == NULL)
+        continue;
+
+      /* Run signal watchers last.  This also affects child process watchers
+       * because those are implemented in terms of signal watchers.
+       */
+      if (w == &loop->signal_io_watcher) {
+        have_signals = 1;
+      } else {
+        uv__metrics_update_idle_time(loop);
+        w->cb(loop, w, pe->portev_events);
+      }
+
+      nevents++;
+
+      if (w != loop->watchers[fd])
+        continue;  /* Disabled by callback. */
+
+      /* Events Ports operates in oneshot mode, rearm timer on next run. */
+      if (w->pevents != 0 && QUEUE_EMPTY(&w->watcher_queue))
+        QUEUE_INSERT_TAIL(&loop->watcher_queue, &w->watcher_queue);
+    }
+
+    if (reset_timeout != 0) {
+      timeout = user_timeout;
+      reset_timeout = 0;
+    }
+
+    if (have_signals != 0) {
+      uv__metrics_update_idle_time(loop);
+      loop->signal_io_watcher.cb(loop, &loop->signal_io_watcher, POLLIN);
+    }
+
+    loop->watchers[loop->nwatchers] = NULL;
+    loop->watchers[loop->nwatchers + 1] = NULL;
+
+    if (have_signals != 0)
+      return;  /* Event loop should cycle now so don't poll again. */
+
+    if (nevents != 0) {
+      if (nfds == ARRAY_SIZE(events) && --count != 0) {
+        /* Poll for more events but don't block this time. */
+        timeout = 0;
+        continue;
+      }
+      return;
+    }
+
+    if (saved_errno == ETIME) {
+      assert(timeout != -1);
+      return;
+    }
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    diff = loop->time - base;
+    if (diff >= (uint64_t) timeout)
+      return;
+
+    timeout -= diff;
+  }
+}
+
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  return gethrtime();
+}
+
+
+/*
+ * We could use a static buffer for the path manipulations that we need outside
+ * of the function, but this function could be called by multiple consumers and
+ * we don't want to potentially create a race condition in the use of snprintf.
+ */
+int uv_exepath(char* buffer, size_t* size) {
+  ssize_t res;
+  char buf[128];
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  snprintf(buf, sizeof(buf), "/proc/%lu/path/a.out", (unsigned long) getpid());
+
+  res = *size - 1;
+  if (res > 0)
+    res = readlink(buf, buffer, res);
+
+  if (res == -1)
+    return UV__ERR(errno);
+
+  buffer[res] = '\0';
+  *size = res;
+  return 0;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_AVPHYS_PAGES);
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES);
+}
+
+
+uint64_t uv_get_constrained_memory(void) {
+  return 0;  /* Memory constraints are unknown. */
+}
+
+
+void uv_loadavg(double avg[3]) {
+  (void) getloadavg(avg, 3);
+}
+
+
+#if defined(PORT_SOURCE_FILE)
+
+static int uv__fs_event_rearm(uv_fs_event_t *handle) {
+  if (handle->fd == -1)
+    return UV_EBADF;
+
+  if (port_associate(handle->loop->fs_fd,
+                     PORT_SOURCE_FILE,
+                     (uintptr_t) &handle->fo,
+                     FILE_ATTRIB | FILE_MODIFIED,
+                     handle) == -1) {
+    return UV__ERR(errno);
+  }
+  handle->fd = PORT_LOADED;
+
+  return 0;
+}
+
+
+static void uv__fs_event_read(uv_loop_t* loop,
+                              uv__io_t* w,
+                              unsigned int revents) {
+  uv_fs_event_t *handle = NULL;
+  timespec_t timeout;
+  port_event_t pe;
+  int events;
+  int r;
+
+  (void) w;
+  (void) revents;
+
+  do {
+    uint_t n = 1;
+
+    /*
+     * Note that our use of port_getn() here (and not port_get()) is deliberate:
+     * there is a bug in event ports (Sun bug 6456558) whereby a zeroed timeout
+     * causes port_get() to return success instead of ETIME when there aren't
+     * actually any events (!); by using port_getn() in lieu of port_get(),
+     * we can at least workaround the bug by checking for zero returned events
+     * and treating it as we would ETIME.
+     */
+    do {
+      memset(&timeout, 0, sizeof timeout);
+      r = port_getn(loop->fs_fd, &pe, 1, &n, &timeout);
+    }
+    while (r == -1 && errno == EINTR);
+
+    if ((r == -1 && errno == ETIME) || n == 0)
+      break;
+
+    handle = (uv_fs_event_t*) pe.portev_user;
+    assert((r == 0) && "unexpected port_get() error");
+
+    events = 0;
+    if (pe.portev_events & (FILE_ATTRIB | FILE_MODIFIED))
+      events |= UV_CHANGE;
+    if (pe.portev_events & ~(FILE_ATTRIB | FILE_MODIFIED))
+      events |= UV_RENAME;
+    assert(events != 0);
+    handle->fd = PORT_FIRED;
+    handle->cb(handle, NULL, events, 0);
+
+    if (handle->fd != PORT_DELETED) {
+      r = uv__fs_event_rearm(handle);
+      if (r != 0)
+        handle->cb(handle, NULL, 0, r);
+    }
+  }
+  while (handle->fd != PORT_DELETED);
+}
+
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
+  return 0;
+}
+
+
+int uv_fs_event_start(uv_fs_event_t* handle,
+                      uv_fs_event_cb cb,
+                      const char* path,
+                      unsigned int flags) {
+  int portfd;
+  int first_run;
+  int err;
+
+  if (uv__is_active(handle))
+    return UV_EINVAL;
+
+  first_run = 0;
+  if (handle->loop->fs_fd == -1) {
+    portfd = port_create();
+    if (portfd == -1)
+      return UV__ERR(errno);
+    handle->loop->fs_fd = portfd;
+    first_run = 1;
+  }
+
+  uv__handle_start(handle);
+  handle->path = uv__strdup(path);
+  handle->fd = PORT_UNUSED;
+  handle->cb = cb;
+
+  memset(&handle->fo, 0, sizeof handle->fo);
+  handle->fo.fo_name = handle->path;
+  err = uv__fs_event_rearm(handle);
+  if (err != 0) {
+    uv_fs_event_stop(handle);
+    return err;
+  }
+
+  if (first_run) {
+    uv__io_init(&handle->loop->fs_event_watcher, uv__fs_event_read, portfd);
+    uv__io_start(handle->loop, &handle->loop->fs_event_watcher, POLLIN);
+  }
+
+  return 0;
+}
+
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  if (!uv__is_active(handle))
+    return 0;
+
+  if (handle->fd == PORT_FIRED || handle->fd == PORT_LOADED) {
+    port_dissociate(handle->loop->fs_fd,
+                    PORT_SOURCE_FILE,
+                    (uintptr_t) &handle->fo);
+  }
+
+  handle->fd = PORT_DELETED;
+  uv__free(handle->path);
+  handle->path = NULL;
+  handle->fo.fo_name = NULL;
+  uv__handle_stop(handle);
+
+  return 0;
+}
+
+void uv__fs_event_close(uv_fs_event_t* handle) {
+  uv_fs_event_stop(handle);
+}
+
+#else /* !defined(PORT_SOURCE_FILE) */
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  return UV_ENOSYS;
+}
+
+
+int uv_fs_event_start(uv_fs_event_t* handle,
+                      uv_fs_event_cb cb,
+                      const char* filename,
+                      unsigned int flags) {
+  return UV_ENOSYS;
+}
+
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  return UV_ENOSYS;
+}
+
+
+void uv__fs_event_close(uv_fs_event_t* handle) {
+  UNREACHABLE();
+}
+
+#endif /* defined(PORT_SOURCE_FILE) */
+
+
+int uv_resident_set_memory(size_t* rss) {
+  psinfo_t psinfo;
+  int err;
+  int fd;
+
+  fd = open("/proc/self/psinfo", O_RDONLY);
+  if (fd == -1)
+    return UV__ERR(errno);
+
+  /* FIXME(bnoordhuis) Handle EINTR. */
+  err = UV_EINVAL;
+  if (read(fd, &psinfo, sizeof(psinfo)) == sizeof(psinfo)) {
+    *rss = (size_t)psinfo.pr_rssize * 1024;
+    err = 0;
+  }
+  uv__close(fd);
+
+  return err;
+}
+
+
+int uv_uptime(double* uptime) {
+  kstat_ctl_t   *kc;
+  kstat_t       *ksp;
+  kstat_named_t *knp;
+
+  long hz = sysconf(_SC_CLK_TCK);
+
+  kc = kstat_open();
+  if (kc == NULL)
+    return UV_EPERM;
+
+  ksp = kstat_lookup(kc, (char*) "unix", 0, (char*) "system_misc");
+  if (kstat_read(kc, ksp, NULL) == -1) {
+    *uptime = -1;
+  } else {
+    knp = (kstat_named_t*)  kstat_data_lookup(ksp, (char*) "clk_intr");
+    *uptime = knp->value.ul / hz;
+  }
+  kstat_close(kc);
+
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  int           lookup_instance;
+  kstat_ctl_t   *kc;
+  kstat_t       *ksp;
+  kstat_named_t *knp;
+  uv_cpu_info_t* cpu_info;
+
+  kc = kstat_open();
+  if (kc == NULL)
+    return UV_EPERM;
+
+  /* Get count of cpus */
+  lookup_instance = 0;
+  while ((ksp = kstat_lookup(kc, (char*) "cpu_info", lookup_instance, NULL))) {
+    lookup_instance++;
+  }
+
+  *cpu_infos = uv__malloc(lookup_instance * sizeof(**cpu_infos));
+  if (!(*cpu_infos)) {
+    kstat_close(kc);
+    return UV_ENOMEM;
+  }
+
+  *count = lookup_instance;
+
+  cpu_info = *cpu_infos;
+  lookup_instance = 0;
+  while ((ksp = kstat_lookup(kc, (char*) "cpu_info", lookup_instance, NULL))) {
+    if (kstat_read(kc, ksp, NULL) == -1) {
+      cpu_info->speed = 0;
+      cpu_info->model = NULL;
+    } else {
+      knp = kstat_data_lookup(ksp, (char*) "clock_MHz");
+      assert(knp->data_type == KSTAT_DATA_INT32 ||
+             knp->data_type == KSTAT_DATA_INT64);
+      cpu_info->speed = (knp->data_type == KSTAT_DATA_INT32) ? knp->value.i32
+                                                             : knp->value.i64;
+
+      knp = kstat_data_lookup(ksp, (char*) "brand");
+      assert(knp->data_type == KSTAT_DATA_STRING);
+      cpu_info->model = uv__strdup(KSTAT_NAMED_STR_PTR(knp));
+    }
+
+    lookup_instance++;
+    cpu_info++;
+  }
+
+  cpu_info = *cpu_infos;
+  lookup_instance = 0;
+  for (;;) {
+    ksp = kstat_lookup(kc, (char*) "cpu", lookup_instance, (char*) "sys");
+
+    if (ksp == NULL)
+      break;
+
+    if (kstat_read(kc, ksp, NULL) == -1) {
+      cpu_info->cpu_times.user = 0;
+      cpu_info->cpu_times.nice = 0;
+      cpu_info->cpu_times.sys = 0;
+      cpu_info->cpu_times.idle = 0;
+      cpu_info->cpu_times.irq = 0;
+    } else {
+      knp = kstat_data_lookup(ksp, (char*) "cpu_ticks_user");
+      assert(knp->data_type == KSTAT_DATA_UINT64);
+      cpu_info->cpu_times.user = knp->value.ui64;
+
+      knp = kstat_data_lookup(ksp, (char*) "cpu_ticks_kernel");
+      assert(knp->data_type == KSTAT_DATA_UINT64);
+      cpu_info->cpu_times.sys = knp->value.ui64;
+
+      knp = kstat_data_lookup(ksp, (char*) "cpu_ticks_idle");
+      assert(knp->data_type == KSTAT_DATA_UINT64);
+      cpu_info->cpu_times.idle = knp->value.ui64;
+
+      knp = kstat_data_lookup(ksp, (char*) "intr");
+      assert(knp->data_type == KSTAT_DATA_UINT64);
+      cpu_info->cpu_times.irq = knp->value.ui64;
+      cpu_info->cpu_times.nice = 0;
+    }
+
+    lookup_instance++;
+    cpu_info++;
+  }
+
+  kstat_close(kc);
+
+  return 0;
+}
+
+
+#ifdef SUNOS_NO_IFADDRS
+int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
+  *count = 0;
+  *addresses = NULL;
+  return UV_ENOSYS;
+}
+#else  /* SUNOS_NO_IFADDRS */
+/*
+ * Inspired By:
+ * https://blogs.oracle.com/paulie/entry/retrieving_mac_address_in_solaris
+ * http://www.pauliesworld.org/project/getmac.c
+ */
+static int uv__set_phys_addr(uv_interface_address_t* address,
+                             struct ifaddrs* ent) {
+
+  struct sockaddr_dl* sa_addr;
+  int sockfd;
+  size_t i;
+  struct arpreq arpreq;
+
+  /* This appears to only work as root */
+  sa_addr = (struct sockaddr_dl*)(ent->ifa_addr);
+  memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
+  for (i = 0; i < sizeof(address->phys_addr); i++) {
+    /* Check that all bytes of phys_addr are zero. */
+    if (address->phys_addr[i] != 0)
+      return 0;
+  }
+  memset(&arpreq, 0, sizeof(arpreq));
+  if (address->address.address4.sin_family == AF_INET) {
+    struct sockaddr_in* sin = ((struct sockaddr_in*)&arpreq.arp_pa);
+    sin->sin_addr.s_addr = address->address.address4.sin_addr.s_addr;
+  } else if (address->address.address4.sin_family == AF_INET6) {
+    struct sockaddr_in6* sin = ((struct sockaddr_in6*)&arpreq.arp_pa);
+    memcpy(sin->sin6_addr.s6_addr,
+           address->address.address6.sin6_addr.s6_addr,
+           sizeof(address->address.address6.sin6_addr.s6_addr));
+  } else {
+    return 0;
+  }
+
+  sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+  if (sockfd < 0)
+    return UV__ERR(errno);
+
+  if (ioctl(sockfd, SIOCGARP, (char*)&arpreq) == -1) {
+    uv__close(sockfd);
+    return UV__ERR(errno);
+  }
+  memcpy(address->phys_addr, arpreq.arp_ha.sa_data, sizeof(address->phys_addr));
+  uv__close(sockfd);
+  return 0;
+}
+
+
+static int uv__ifaddr_exclude(struct ifaddrs *ent) {
+  if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)))
+    return 1;
+  if (ent->ifa_addr == NULL)
+    return 1;
+  if (ent->ifa_addr->sa_family != AF_INET &&
+      ent->ifa_addr->sa_family != AF_INET6)
+    return 1;
+  return 0;
+}
+
+int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
+  uv_interface_address_t* address;
+  struct ifaddrs* addrs;
+  struct ifaddrs* ent;
+
+  *count = 0;
+  *addresses = NULL;
+
+  if (getifaddrs(&addrs))
+    return UV__ERR(errno);
+
+  /* Count the number of interfaces */
+  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
+    if (uv__ifaddr_exclude(ent))
+      continue;
+    (*count)++;
+  }
+
+  if (*count == 0) {
+    freeifaddrs(addrs);
+    return 0;
+  }
+
+  *addresses = uv__malloc(*count * sizeof(**addresses));
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
+    return UV_ENOMEM;
+  }
+
+  address = *addresses;
+
+  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
+    if (uv__ifaddr_exclude(ent))
+      continue;
+
+    address->name = uv__strdup(ent->ifa_name);
+
+    if (ent->ifa_addr->sa_family == AF_INET6) {
+      address->address.address6 = *((struct sockaddr_in6*) ent->ifa_addr);
+    } else {
+      address->address.address4 = *((struct sockaddr_in*) ent->ifa_addr);
+    }
+
+    if (ent->ifa_netmask->sa_family == AF_INET6) {
+      address->netmask.netmask6 = *((struct sockaddr_in6*) ent->ifa_netmask);
+    } else {
+      address->netmask.netmask4 = *((struct sockaddr_in*) ent->ifa_netmask);
+    }
+
+    address->is_internal = !!((ent->ifa_flags & IFF_PRIVATE) ||
+                           (ent->ifa_flags & IFF_LOOPBACK));
+
+    uv__set_phys_addr(address, ent);
+    address++;
+  }
+
+  freeifaddrs(addrs);
+
+  return 0;
+}
+#endif  /* SUNOS_NO_IFADDRS */
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses,
+  int count) {
+  int i;
+
+  for (i = 0; i < count; i++) {
+    uv__free(addresses[i].name);
+  }
+
+  uv__free(addresses);
+}

deps/libuv/src/unix/sysinfo-loadavg.c

@@ -0,0 +1,36 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdint.h>
+#include <sys/sysinfo.h>
+
+void uv_loadavg(double avg[3]) {
+  struct sysinfo info;
+
+  if (sysinfo(&info) < 0) return;
+
+  avg[0] = (double) info.loads[0] / 65536.0;
+  avg[1] = (double) info.loads[1] / 65536.0;
+  avg[2] = (double) info.loads[2] / 65536.0;
+}

deps/libuv/src/unix/sysinfo-memory.c

@@ -0,0 +1,42 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdint.h>
+#include <sys/sysinfo.h>
+
+uint64_t uv_get_free_memory(void) {
+  struct sysinfo info;
+
+  if (sysinfo(&info) == 0)
+    return (uint64_t) info.freeram * info.mem_unit;
+  return 0;
+}
+
+uint64_t uv_get_total_memory(void) {
+  struct sysinfo info;
+
+  if (sysinfo(&info) == 0)
+    return (uint64_t) info.totalram * info.mem_unit;
+  return 0;
+}

deps/libuv/src/unix/tcp.c

@@ -0,0 +1,461 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+
+
+static int new_socket(uv_tcp_t* handle, int domain, unsigned long flags) {
+  struct sockaddr_storage saddr;
+  socklen_t slen;
+  int sockfd;
+  int err;
+
+  err = uv__socket(domain, SOCK_STREAM, 0);
+  if (err < 0)
+    return err;
+  sockfd = err;
+
+  err = uv__stream_open((uv_stream_t*) handle, sockfd, flags);
+  if (err) {
+    uv__close(sockfd);
+    return err;
+  }
+
+  if (flags & UV_HANDLE_BOUND) {
+    /* Bind this new socket to an arbitrary port */
+    slen = sizeof(saddr);
+    memset(&saddr, 0, sizeof(saddr));
+    if (getsockname(uv__stream_fd(handle), (struct sockaddr*) &saddr, &slen)) {
+      uv__close(sockfd);
+      return UV__ERR(errno);
+    }
+
+    if (bind(uv__stream_fd(handle), (struct sockaddr*) &saddr, slen)) {
+      uv__close(sockfd);
+      return UV__ERR(errno);
+    }
+  }
+
+  return 0;
+}
+
+
+static int maybe_new_socket(uv_tcp_t* handle, int domain, unsigned long flags) {
+  struct sockaddr_storage saddr;
+  socklen_t slen;
+
+  if (domain == AF_UNSPEC) {
+    handle->flags |= flags;
+    return 0;
+  }
+
+  if (uv__stream_fd(handle) != -1) {
+
+    if (flags & UV_HANDLE_BOUND) {
+
+      if (handle->flags & UV_HANDLE_BOUND) {
+        /* It is already bound to a port. */
+        handle->flags |= flags;
+        return 0;
+      }
+
+      /* Query to see if tcp socket is bound. */
+      slen = sizeof(saddr);
+      memset(&saddr, 0, sizeof(saddr));
+      if (getsockname(uv__stream_fd(handle), (struct sockaddr*) &saddr, &slen))
+        return UV__ERR(errno);
+
+      if ((saddr.ss_family == AF_INET6 &&
+          ((struct sockaddr_in6*) &saddr)->sin6_port != 0) ||
+          (saddr.ss_family == AF_INET &&
+          ((struct sockaddr_in*) &saddr)->sin_port != 0)) {
+        /* Handle is already bound to a port. */
+        handle->flags |= flags;
+        return 0;
+      }
+
+      /* Bind to arbitrary port */
+      if (bind(uv__stream_fd(handle), (struct sockaddr*) &saddr, slen))
+        return UV__ERR(errno);
+    }
+
+    handle->flags |= flags;
+    return 0;
+  }
+
+  return new_socket(handle, domain, flags);
+}
+
+
+int uv_tcp_init_ex(uv_loop_t* loop, uv_tcp_t* tcp, unsigned int flags) {
+  int domain;
+
+  /* Use the lower 8 bits for the domain */
+  domain = flags & 0xFF;
+  if (domain != AF_INET && domain != AF_INET6 && domain != AF_UNSPEC)
+    return UV_EINVAL;
+
+  if (flags & ~0xFF)
+    return UV_EINVAL;
+
+  uv__stream_init(loop, (uv_stream_t*)tcp, UV_TCP);
+
+  /* If anything fails beyond this point we need to remove the handle from
+   * the handle queue, since it was added by uv__handle_init in uv_stream_init.
+   */
+
+  if (domain != AF_UNSPEC) {
+    int err = maybe_new_socket(tcp, domain, 0);
+    if (err) {
+      QUEUE_REMOVE(&tcp->handle_queue);
+      return err;
+    }
+  }
+
+  return 0;
+}
+
+
+int uv_tcp_init(uv_loop_t* loop, uv_tcp_t* tcp) {
+  return uv_tcp_init_ex(loop, tcp, AF_UNSPEC);
+}
+
+
+int uv__tcp_bind(uv_tcp_t* tcp,
+                 const struct sockaddr* addr,
+                 unsigned int addrlen,
+                 unsigned int flags) {
+  int err;
+  int on;
+
+  /* Cannot set IPv6-only mode on non-IPv6 socket. */
+  if ((flags & UV_TCP_IPV6ONLY) && addr->sa_family != AF_INET6)
+    return UV_EINVAL;
+
+  err = maybe_new_socket(tcp, addr->sa_family, 0);
+  if (err)
+    return err;
+
+  on = 1;
+  if (setsockopt(tcp->io_watcher.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)))
+    return UV__ERR(errno);
+
+#ifndef __OpenBSD__
+#ifdef IPV6_V6ONLY
+  if (addr->sa_family == AF_INET6) {
+    on = (flags & UV_TCP_IPV6ONLY) != 0;
+    if (setsockopt(tcp->io_watcher.fd,
+                   IPPROTO_IPV6,
+                   IPV6_V6ONLY,
+                   &on,
+                   sizeof on) == -1) {
+#if defined(__MVS__)
+      if (errno == EOPNOTSUPP)
+        return UV_EINVAL;
+#endif
+      return UV__ERR(errno);
+    }
+  }
+#endif
+#endif
+
+  errno = 0;
+  if (bind(tcp->io_watcher.fd, addr, addrlen) && errno != EADDRINUSE) {
+    if (errno == EAFNOSUPPORT)
+      /* OSX, other BSDs and SunoS fail with EAFNOSUPPORT when binding a
+       * socket created with AF_INET to an AF_INET6 address or vice versa. */
+      return UV_EINVAL;
+    return UV__ERR(errno);
+  }
+  tcp->delayed_error = UV__ERR(errno);
+
+  tcp->flags |= UV_HANDLE_BOUND;
+  if (addr->sa_family == AF_INET6)
+    tcp->flags |= UV_HANDLE_IPV6;
+
+  return 0;
+}
+
+
+int uv__tcp_connect(uv_connect_t* req,
+                    uv_tcp_t* handle,
+                    const struct sockaddr* addr,
+                    unsigned int addrlen,
+                    uv_connect_cb cb) {
+  int err;
+  int r;
+
+  assert(handle->type == UV_TCP);
+
+  if (handle->connect_req != NULL)
+    return UV_EALREADY;  /* FIXME(bnoordhuis) UV_EINVAL or maybe UV_EBUSY. */
+
+  err = maybe_new_socket(handle,
+                         addr->sa_family,
+                         UV_HANDLE_READABLE | UV_HANDLE_WRITABLE);
+  if (err)
+    return err;
+
+  handle->delayed_error = 0;
+
+  do {
+    errno = 0;
+    r = connect(uv__stream_fd(handle), addr, addrlen);
+  } while (r == -1 && errno == EINTR);
+
+  /* We not only check the return value, but also check the errno != 0.
+   * Because in rare cases connect() will return -1 but the errno
+   * is 0 (for example, on Android 4.3, OnePlus phone A0001_12_150227)
+   * and actually the tcp three-way handshake is completed.
+   */
+  if (r == -1 && errno != 0) {
+    if (errno == EINPROGRESS)
+      ; /* not an error */
+    else if (errno == ECONNREFUSED
+#if defined(__OpenBSD__)
+      || errno == EINVAL
+#endif
+      )
+    /* If we get ECONNREFUSED (Solaris) or EINVAL (OpenBSD) wait until the
+     * next tick to report the error. Solaris and OpenBSD wants to report
+     * immediately -- other unixes want to wait.
+     */
+      handle->delayed_error = UV__ERR(ECONNREFUSED);
+    else
+      return UV__ERR(errno);
+  }
+
+  uv__req_init(handle->loop, req, UV_CONNECT);
+  req->cb = cb;
+  req->handle = (uv_stream_t*) handle;
+  QUEUE_INIT(&req->queue);
+  handle->connect_req = req;
+
+  uv__io_start(handle->loop, &handle->io_watcher, POLLOUT);
+
+  if (handle->delayed_error)
+    uv__io_feed(handle->loop, &handle->io_watcher);
+
+  return 0;
+}
+
+
+int uv_tcp_open(uv_tcp_t* handle, uv_os_sock_t sock) {
+  int err;
+
+  if (uv__fd_exists(handle->loop, sock))
+    return UV_EEXIST;
+
+  err = uv__nonblock(sock, 1);
+  if (err)
+    return err;
+
+  return uv__stream_open((uv_stream_t*)handle,
+                         sock,
+                         UV_HANDLE_READABLE | UV_HANDLE_WRITABLE);
+}
+
+
+int uv_tcp_getsockname(const uv_tcp_t* handle,
+                       struct sockaddr* name,
+                       int* namelen) {
+
+  if (handle->delayed_error)
+    return handle->delayed_error;
+
+  return uv__getsockpeername((const uv_handle_t*) handle,
+                             getsockname,
+                             name,
+                             namelen);
+}
+
+
+int uv_tcp_getpeername(const uv_tcp_t* handle,
+                       struct sockaddr* name,
+                       int* namelen) {
+
+  if (handle->delayed_error)
+    return handle->delayed_error;
+
+  return uv__getsockpeername((const uv_handle_t*) handle,
+                             getpeername,
+                             name,
+                             namelen);
+}
+
+
+int uv_tcp_close_reset(uv_tcp_t* handle, uv_close_cb close_cb) {
+  int fd;
+  struct linger l = { 1, 0 };
+
+  /* Disallow setting SO_LINGER to zero due to some platform inconsistencies */
+  if (handle->flags & UV_HANDLE_SHUTTING)
+    return UV_EINVAL;
+
+  fd = uv__stream_fd(handle);
+  if (0 != setsockopt(fd, SOL_SOCKET, SO_LINGER, &l, sizeof(l)))
+    return UV__ERR(errno);
+
+  uv_close((uv_handle_t*) handle, close_cb);
+  return 0;
+}
+
+
+int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
+  static int single_accept_cached = -1;
+  unsigned long flags;
+  int single_accept;
+  int err;
+
+  if (tcp->delayed_error)
+    return tcp->delayed_error;
+
+  single_accept = uv__load_relaxed(&single_accept_cached);
+  if (single_accept == -1) {
+    const char* val = getenv("UV_TCP_SINGLE_ACCEPT");
+    single_accept = (val != NULL && atoi(val) != 0);  /* Off by default. */
+    uv__store_relaxed(&single_accept_cached, single_accept);
+  }
+
+  if (single_accept)
+    tcp->flags |= UV_HANDLE_TCP_SINGLE_ACCEPT;
+
+  flags = 0;
+#if defined(__MVS__)
+  /* on zOS the listen call does not bind automatically
+     if the socket is unbound. Hence the manual binding to
+     an arbitrary port is required to be done manually
+  */
+  flags |= UV_HANDLE_BOUND;
+#endif
+  err = maybe_new_socket(tcp, AF_INET, flags);
+  if (err)
+    return err;
+
+  if (listen(tcp->io_watcher.fd, backlog))
+    return UV__ERR(errno);
+
+  tcp->connection_cb = cb;
+  tcp->flags |= UV_HANDLE_BOUND;
+
+  /* Start listening for connections. */
+  tcp->io_watcher.cb = uv__server_io;
+  uv__io_start(tcp->loop, &tcp->io_watcher, POLLIN);
+
+  return 0;
+}
+
+
+int uv__tcp_nodelay(int fd, int on) {
+  if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)))
+    return UV__ERR(errno);
+  return 0;
+}
+
+
+int uv__tcp_keepalive(int fd, int on, unsigned int delay) {
+  if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on)))
+    return UV__ERR(errno);
+
+#ifdef TCP_KEEPIDLE
+  if (on) {
+    int intvl = 1;  /*  1 second; same as default on Win32 */
+    int cnt = 10;  /* 10 retries; same as hardcoded on Win32 */
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &delay, sizeof(delay)))
+      return UV__ERR(errno);
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, &intvl, sizeof(intvl)))
+      return UV__ERR(errno);
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, &cnt, sizeof(cnt)))
+      return UV__ERR(errno);
+  }
+#endif
+
+  /* Solaris/SmartOS, if you don't support keep-alive,
+   * then don't advertise it in your system headers...
+   */
+  /* FIXME(bnoordhuis) That's possibly because sizeof(delay) should be 1. */
+#if defined(TCP_KEEPALIVE) && !defined(__sun)
+  if (on && setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &delay, sizeof(delay)))
+    return UV__ERR(errno);
+#endif
+
+  return 0;
+}
+
+
+int uv_tcp_nodelay(uv_tcp_t* handle, int on) {
+  int err;
+
+  if (uv__stream_fd(handle) != -1) {
+    err = uv__tcp_nodelay(uv__stream_fd(handle), on);
+    if (err)
+      return err;
+  }
+
+  if (on)
+    handle->flags |= UV_HANDLE_TCP_NODELAY;
+  else
+    handle->flags &= ~UV_HANDLE_TCP_NODELAY;
+
+  return 0;
+}
+
+
+int uv_tcp_keepalive(uv_tcp_t* handle, int on, unsigned int delay) {
+  int err;
+
+  if (uv__stream_fd(handle) != -1) {
+    err =uv__tcp_keepalive(uv__stream_fd(handle), on, delay);
+    if (err)
+      return err;
+  }
+
+  if (on)
+    handle->flags |= UV_HANDLE_TCP_KEEPALIVE;
+  else
+    handle->flags &= ~UV_HANDLE_TCP_KEEPALIVE;
+
+  /* TODO Store delay if uv__stream_fd(handle) == -1 but don't want to enlarge
+   *      uv_tcp_t with an int that's almost never used...
+   */
+
+  return 0;
+}
+
+
+int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable) {
+  if (enable)
+    handle->flags &= ~UV_HANDLE_TCP_SINGLE_ACCEPT;
+  else
+    handle->flags |= UV_HANDLE_TCP_SINGLE_ACCEPT;
+  return 0;
+}
+
+
+void uv__tcp_close(uv_tcp_t* handle) {
+  uv__stream_close((uv_stream_t*)handle);
+}

deps/libuv/src/unix/thread.c

@@ -0,0 +1,842 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <pthread.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/time.h>
+#include <sys/resource.h>  /* getrlimit() */
+#include <unistd.h>  /* getpagesize() */
+
+#include <limits.h>
+
+#ifdef __MVS__
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#endif
+
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
+#include <gnu/libc-version.h>  /* gnu_get_libc_version() */
+#endif
+
+#undef NANOSEC
+#define NANOSEC ((uint64_t) 1e9)
+
+#if defined(PTHREAD_BARRIER_SERIAL_THREAD)
+STATIC_ASSERT(sizeof(uv_barrier_t) == sizeof(pthread_barrier_t));
+#endif
+
+/* Note: guard clauses should match uv_barrier_t's in include/uv/unix.h. */
+#if defined(_AIX) || \
+    defined(__OpenBSD__) || \
+    !defined(PTHREAD_BARRIER_SERIAL_THREAD)
+int uv_barrier_init(uv_barrier_t* barrier, unsigned int count) {
+  struct _uv_barrier* b;
+  int rc;
+
+  if (barrier == NULL || count == 0)
+    return UV_EINVAL;
+
+  b = uv__malloc(sizeof(*b));
+  if (b == NULL)
+    return UV_ENOMEM;
+
+  b->in = 0;
+  b->out = 0;
+  b->threshold = count;
+
+  rc = uv_mutex_init(&b->mutex);
+  if (rc != 0)
+    goto error2;
+
+  rc = uv_cond_init(&b->cond);
+  if (rc != 0)
+    goto error;
+
+  barrier->b = b;
+  return 0;
+
+error:
+  uv_mutex_destroy(&b->mutex);
+error2:
+  uv__free(b);
+  return rc;
+}
+
+
+int uv_barrier_wait(uv_barrier_t* barrier) {
+  struct _uv_barrier* b;
+  int last;
+
+  if (barrier == NULL || barrier->b == NULL)
+    return UV_EINVAL;
+
+  b = barrier->b;
+  uv_mutex_lock(&b->mutex);
+
+  if (++b->in == b->threshold) {
+    b->in = 0;
+    b->out = b->threshold;
+    uv_cond_signal(&b->cond);
+  } else {
+    do
+      uv_cond_wait(&b->cond, &b->mutex);
+    while (b->in != 0);
+  }
+
+  last = (--b->out == 0);
+  if (!last)
+    uv_cond_signal(&b->cond);  /* Not needed for last thread. */
+
+  uv_mutex_unlock(&b->mutex);
+  return last;
+}
+
+
+void uv_barrier_destroy(uv_barrier_t* barrier) {
+  struct _uv_barrier* b;
+
+  b = barrier->b;
+  uv_mutex_lock(&b->mutex);
+
+  assert(b->in == 0);
+  assert(b->out == 0);
+
+  if (b->in != 0 || b->out != 0)
+    abort();
+
+  uv_mutex_unlock(&b->mutex);
+  uv_mutex_destroy(&b->mutex);
+  uv_cond_destroy(&b->cond);
+
+  uv__free(barrier->b);
+  barrier->b = NULL;
+}
+
+#else
+
+int uv_barrier_init(uv_barrier_t* barrier, unsigned int count) {
+  return UV__ERR(pthread_barrier_init(barrier, NULL, count));
+}
+
+
+int uv_barrier_wait(uv_barrier_t* barrier) {
+  int rc;
+
+  rc = pthread_barrier_wait(barrier);
+  if (rc != 0)
+    if (rc != PTHREAD_BARRIER_SERIAL_THREAD)
+      abort();
+
+  return rc == PTHREAD_BARRIER_SERIAL_THREAD;
+}
+
+
+void uv_barrier_destroy(uv_barrier_t* barrier) {
+  if (pthread_barrier_destroy(barrier))
+    abort();
+}
+
+#endif
+
+
+/* On MacOS, threads other than the main thread are created with a reduced
+ * stack size by default.  Adjust to RLIMIT_STACK aligned to the page size.
+ *
+ * On Linux, threads created by musl have a much smaller stack than threads
+ * created by glibc (80 vs. 2048 or 4096 kB.)  Follow glibc for consistency.
+ */
+static size_t thread_stack_size(void) {
+#if defined(__APPLE__) || defined(__linux__)
+  struct rlimit lim;
+
+  /* getrlimit() can fail on some aarch64 systems due to a glibc bug where
+   * the system call wrapper invokes the wrong system call. Don't treat
+   * that as fatal, just use the default stack size instead.
+   */
+  if (0 == getrlimit(RLIMIT_STACK, &lim) && lim.rlim_cur != RLIM_INFINITY) {
+    /* pthread_attr_setstacksize() expects page-aligned values. */
+    lim.rlim_cur -= lim.rlim_cur % (rlim_t) getpagesize();
+
+    /* Musl's PTHREAD_STACK_MIN is 2 KB on all architectures, which is
+     * too small to safely receive signals on.
+     *
+     * Musl's PTHREAD_STACK_MIN + MINSIGSTKSZ == 8192 on arm64 (which has
+     * the largest MINSIGSTKSZ of the architectures that musl supports) so
+     * let's use that as a lower bound.
+     *
+     * We use a hardcoded value because PTHREAD_STACK_MIN + MINSIGSTKSZ
+     * is between 28 and 133 KB when compiling against glibc, depending
+     * on the architecture.
+     */
+    if (lim.rlim_cur >= 8192)
+      if (lim.rlim_cur >= PTHREAD_STACK_MIN)
+        return lim.rlim_cur;
+  }
+#endif
+
+#if !defined(__linux__)
+  return 0;
+#elif defined(__PPC__) || defined(__ppc__) || defined(__powerpc__)
+  return 4 << 20;  /* glibc default. */
+#else
+  return 2 << 20;  /* glibc default. */
+#endif
+}
+
+
+int uv_thread_create(uv_thread_t *tid, void (*entry)(void *arg), void *arg) {
+  uv_thread_options_t params;
+  params.flags = UV_THREAD_NO_FLAGS;
+  return uv_thread_create_ex(tid, &params, entry, arg);
+}
+
+int uv_thread_create_ex(uv_thread_t* tid,
+                        const uv_thread_options_t* params,
+                        void (*entry)(void *arg),
+                        void *arg) {
+  int err;
+  pthread_attr_t* attr;
+  pthread_attr_t attr_storage;
+  size_t pagesize;
+  size_t stack_size;
+
+  /* Used to squelch a -Wcast-function-type warning. */
+  union {
+    void (*in)(void*);
+    void* (*out)(void*);
+  } f;
+
+  stack_size =
+      params->flags & UV_THREAD_HAS_STACK_SIZE ? params->stack_size : 0;
+
+  attr = NULL;
+  if (stack_size == 0) {
+    stack_size = thread_stack_size();
+  } else {
+    pagesize = (size_t)getpagesize();
+    /* Round up to the nearest page boundary. */
+    stack_size = (stack_size + pagesize - 1) &~ (pagesize - 1);
+#ifdef PTHREAD_STACK_MIN
+    if (stack_size < PTHREAD_STACK_MIN)
+      stack_size = PTHREAD_STACK_MIN;
+#endif
+  }
+
+  if (stack_size > 0) {
+    attr = &attr_storage;
+
+    if (pthread_attr_init(attr))
+      abort();
+
+    if (pthread_attr_setstacksize(attr, stack_size))
+      abort();
+  }
+
+  f.in = entry;
+  err = pthread_create(tid, attr, f.out, arg);
+
+  if (attr != NULL)
+    pthread_attr_destroy(attr);
+
+  return UV__ERR(err);
+}
+
+
+uv_thread_t uv_thread_self(void) {
+  return pthread_self();
+}
+
+int uv_thread_join(uv_thread_t *tid) {
+  return UV__ERR(pthread_join(*tid, NULL));
+}
+
+
+int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2) {
+  return pthread_equal(*t1, *t2);
+}
+
+
+int uv_mutex_init(uv_mutex_t* mutex) {
+#if defined(NDEBUG) || !defined(PTHREAD_MUTEX_ERRORCHECK)
+  return UV__ERR(pthread_mutex_init(mutex, NULL));
+#else
+  pthread_mutexattr_t attr;
+  int err;
+
+  if (pthread_mutexattr_init(&attr))
+    abort();
+
+  if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK))
+    abort();
+
+  err = pthread_mutex_init(mutex, &attr);
+
+  if (pthread_mutexattr_destroy(&attr))
+    abort();
+
+  return UV__ERR(err);
+#endif
+}
+
+
+int uv_mutex_init_recursive(uv_mutex_t* mutex) {
+  pthread_mutexattr_t attr;
+  int err;
+
+  if (pthread_mutexattr_init(&attr))
+    abort();
+
+  if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE))
+    abort();
+
+  err = pthread_mutex_init(mutex, &attr);
+
+  if (pthread_mutexattr_destroy(&attr))
+    abort();
+
+  return UV__ERR(err);
+}
+
+
+void uv_mutex_destroy(uv_mutex_t* mutex) {
+  if (pthread_mutex_destroy(mutex))
+    abort();
+}
+
+
+void uv_mutex_lock(uv_mutex_t* mutex) {
+  if (pthread_mutex_lock(mutex))
+    abort();
+}
+
+
+int uv_mutex_trylock(uv_mutex_t* mutex) {
+  int err;
+
+  err = pthread_mutex_trylock(mutex);
+  if (err) {
+    if (err != EBUSY && err != EAGAIN)
+      abort();
+    return UV_EBUSY;
+  }
+
+  return 0;
+}
+
+
+void uv_mutex_unlock(uv_mutex_t* mutex) {
+  if (pthread_mutex_unlock(mutex))
+    abort();
+}
+
+
+int uv_rwlock_init(uv_rwlock_t* rwlock) {
+  return UV__ERR(pthread_rwlock_init(rwlock, NULL));
+}
+
+
+void uv_rwlock_destroy(uv_rwlock_t* rwlock) {
+  if (pthread_rwlock_destroy(rwlock))
+    abort();
+}
+
+
+void uv_rwlock_rdlock(uv_rwlock_t* rwlock) {
+  if (pthread_rwlock_rdlock(rwlock))
+    abort();
+}
+
+
+int uv_rwlock_tryrdlock(uv_rwlock_t* rwlock) {
+  int err;
+
+  err = pthread_rwlock_tryrdlock(rwlock);
+  if (err) {
+    if (err != EBUSY && err != EAGAIN)
+      abort();
+    return UV_EBUSY;
+  }
+
+  return 0;
+}
+
+
+void uv_rwlock_rdunlock(uv_rwlock_t* rwlock) {
+  if (pthread_rwlock_unlock(rwlock))
+    abort();
+}
+
+
+void uv_rwlock_wrlock(uv_rwlock_t* rwlock) {
+  if (pthread_rwlock_wrlock(rwlock))
+    abort();
+}
+
+
+int uv_rwlock_trywrlock(uv_rwlock_t* rwlock) {
+  int err;
+
+  err = pthread_rwlock_trywrlock(rwlock);
+  if (err) {
+    if (err != EBUSY && err != EAGAIN)
+      abort();
+    return UV_EBUSY;
+  }
+
+  return 0;
+}
+
+
+void uv_rwlock_wrunlock(uv_rwlock_t* rwlock) {
+  if (pthread_rwlock_unlock(rwlock))
+    abort();
+}
+
+
+void uv_once(uv_once_t* guard, void (*callback)(void)) {
+  if (pthread_once(guard, callback))
+    abort();
+}
+
+#if defined(__APPLE__) && defined(__MACH__)
+
+int uv_sem_init(uv_sem_t* sem, unsigned int value) {
+  kern_return_t err;
+
+  err = semaphore_create(mach_task_self(), sem, SYNC_POLICY_FIFO, value);
+  if (err == KERN_SUCCESS)
+    return 0;
+  if (err == KERN_INVALID_ARGUMENT)
+    return UV_EINVAL;
+  if (err == KERN_RESOURCE_SHORTAGE)
+    return UV_ENOMEM;
+
+  abort();
+  return UV_EINVAL;  /* Satisfy the compiler. */
+}
+
+
+void uv_sem_destroy(uv_sem_t* sem) {
+  if (semaphore_destroy(mach_task_self(), *sem))
+    abort();
+}
+
+
+void uv_sem_post(uv_sem_t* sem) {
+  if (semaphore_signal(*sem))
+    abort();
+}
+
+
+void uv_sem_wait(uv_sem_t* sem) {
+  int r;
+
+  do
+    r = semaphore_wait(*sem);
+  while (r == KERN_ABORTED);
+
+  if (r != KERN_SUCCESS)
+    abort();
+}
+
+
+int uv_sem_trywait(uv_sem_t* sem) {
+  mach_timespec_t interval;
+  kern_return_t err;
+
+  interval.tv_sec = 0;
+  interval.tv_nsec = 0;
+
+  err = semaphore_timedwait(*sem, interval);
+  if (err == KERN_SUCCESS)
+    return 0;
+  if (err == KERN_OPERATION_TIMED_OUT)
+    return UV_EAGAIN;
+
+  abort();
+  return UV_EINVAL;  /* Satisfy the compiler. */
+}
+
+#else /* !(defined(__APPLE__) && defined(__MACH__)) */
+
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
+
+/* Hack around https://sourceware.org/bugzilla/show_bug.cgi?id=12674
+ * by providing a custom implementation for glibc < 2.21 in terms of other
+ * concurrency primitives.
+ * Refs: https://github.com/nodejs/node/issues/19903 */
+
+/* To preserve ABI compatibility, we treat the uv_sem_t as storage for
+ * a pointer to the actual struct we're using underneath. */
+
+static uv_once_t glibc_version_check_once = UV_ONCE_INIT;
+static int platform_needs_custom_semaphore = 0;
+
+static void glibc_version_check(void) {
+  const char* version = gnu_get_libc_version();
+  platform_needs_custom_semaphore =
+      version[0] == '2' && version[1] == '.' &&
+      atoi(version + 2) < 21;
+}
+
+#elif defined(__MVS__)
+
+#define platform_needs_custom_semaphore 1
+
+#else /* !defined(__GLIBC__) && !defined(__MVS__) */
+
+#define platform_needs_custom_semaphore 0
+
+#endif
+
+typedef struct uv_semaphore_s {
+  uv_mutex_t mutex;
+  uv_cond_t cond;
+  unsigned int value;
+} uv_semaphore_t;
+
+#if (defined(__GLIBC__) && !defined(__UCLIBC__)) || \
+    platform_needs_custom_semaphore
+STATIC_ASSERT(sizeof(uv_sem_t) >= sizeof(uv_semaphore_t*));
+#endif
+
+static int uv__custom_sem_init(uv_sem_t* sem_, unsigned int value) {
+  int err;
+  uv_semaphore_t* sem;
+
+  sem = uv__malloc(sizeof(*sem));
+  if (sem == NULL)
+    return UV_ENOMEM;
+
+  if ((err = uv_mutex_init(&sem->mutex)) != 0) {
+    uv__free(sem);
+    return err;
+  }
+
+  if ((err = uv_cond_init(&sem->cond)) != 0) {
+    uv_mutex_destroy(&sem->mutex);
+    uv__free(sem);
+    return err;
+  }
+
+  sem->value = value;
+  *(uv_semaphore_t**)sem_ = sem;
+  return 0;
+}
+
+
+static void uv__custom_sem_destroy(uv_sem_t* sem_) {
+  uv_semaphore_t* sem;
+
+  sem = *(uv_semaphore_t**)sem_;
+  uv_cond_destroy(&sem->cond);
+  uv_mutex_destroy(&sem->mutex);
+  uv__free(sem);
+}
+
+
+static void uv__custom_sem_post(uv_sem_t* sem_) {
+  uv_semaphore_t* sem;
+
+  sem = *(uv_semaphore_t**)sem_;
+  uv_mutex_lock(&sem->mutex);
+  sem->value++;
+  if (sem->value == 1)
+    uv_cond_signal(&sem->cond);
+  uv_mutex_unlock(&sem->mutex);
+}
+
+
+static void uv__custom_sem_wait(uv_sem_t* sem_) {
+  uv_semaphore_t* sem;
+
+  sem = *(uv_semaphore_t**)sem_;
+  uv_mutex_lock(&sem->mutex);
+  while (sem->value == 0)
+    uv_cond_wait(&sem->cond, &sem->mutex);
+  sem->value--;
+  uv_mutex_unlock(&sem->mutex);
+}
+
+
+static int uv__custom_sem_trywait(uv_sem_t* sem_) {
+  uv_semaphore_t* sem;
+
+  sem = *(uv_semaphore_t**)sem_;
+  if (uv_mutex_trylock(&sem->mutex) != 0)
+    return UV_EAGAIN;
+
+  if (sem->value == 0) {
+    uv_mutex_unlock(&sem->mutex);
+    return UV_EAGAIN;
+  }
+
+  sem->value--;
+  uv_mutex_unlock(&sem->mutex);
+
+  return 0;
+}
+
+static int uv__sem_init(uv_sem_t* sem, unsigned int value) {
+  if (sem_init(sem, 0, value))
+    return UV__ERR(errno);
+  return 0;
+}
+
+
+static void uv__sem_destroy(uv_sem_t* sem) {
+  if (sem_destroy(sem))
+    abort();
+}
+
+
+static void uv__sem_post(uv_sem_t* sem) {
+  if (sem_post(sem))
+    abort();
+}
+
+
+static void uv__sem_wait(uv_sem_t* sem) {
+  int r;
+
+  do
+    r = sem_wait(sem);
+  while (r == -1 && errno == EINTR);
+
+  if (r)
+    abort();
+}
+
+
+static int uv__sem_trywait(uv_sem_t* sem) {
+  int r;
+
+  do
+    r = sem_trywait(sem);
+  while (r == -1 && errno == EINTR);
+
+  if (r) {
+    if (errno == EAGAIN)
+      return UV_EAGAIN;
+    abort();
+  }
+
+  return 0;
+}
+
+int uv_sem_init(uv_sem_t* sem, unsigned int value) {
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
+  uv_once(&glibc_version_check_once, glibc_version_check);
+#endif
+
+  if (platform_needs_custom_semaphore)
+    return uv__custom_sem_init(sem, value);
+  else
+    return uv__sem_init(sem, value);
+}
+
+
+void uv_sem_destroy(uv_sem_t* sem) {
+  if (platform_needs_custom_semaphore)
+    uv__custom_sem_destroy(sem);
+  else
+    uv__sem_destroy(sem);
+}
+
+
+void uv_sem_post(uv_sem_t* sem) {
+  if (platform_needs_custom_semaphore)
+    uv__custom_sem_post(sem);
+  else
+    uv__sem_post(sem);
+}
+
+
+void uv_sem_wait(uv_sem_t* sem) {
+  if (platform_needs_custom_semaphore)
+    uv__custom_sem_wait(sem);
+  else
+    uv__sem_wait(sem);
+}
+
+
+int uv_sem_trywait(uv_sem_t* sem) {
+  if (platform_needs_custom_semaphore)
+    return uv__custom_sem_trywait(sem);
+  else
+    return uv__sem_trywait(sem);
+}
+
+#endif /* defined(__APPLE__) && defined(__MACH__) */
+
+
+#if defined(__APPLE__) && defined(__MACH__) || defined(__MVS__)
+
+int uv_cond_init(uv_cond_t* cond) {
+  return UV__ERR(pthread_cond_init(cond, NULL));
+}
+
+#else /* !(defined(__APPLE__) && defined(__MACH__)) */
+
+int uv_cond_init(uv_cond_t* cond) {
+  pthread_condattr_t attr;
+  int err;
+
+  err = pthread_condattr_init(&attr);
+  if (err)
+    return UV__ERR(err);
+
+  err = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
+  if (err)
+    goto error2;
+
+  err = pthread_cond_init(cond, &attr);
+  if (err)
+    goto error2;
+
+  err = pthread_condattr_destroy(&attr);
+  if (err)
+    goto error;
+
+  return 0;
+
+error:
+  pthread_cond_destroy(cond);
+error2:
+  pthread_condattr_destroy(&attr);
+  return UV__ERR(err);
+}
+
+#endif /* defined(__APPLE__) && defined(__MACH__) */
+
+void uv_cond_destroy(uv_cond_t* cond) {
+#if defined(__APPLE__) && defined(__MACH__)
+  /* It has been reported that destroying condition variables that have been
+   * signalled but not waited on can sometimes result in application crashes.
+   * See https://codereview.chromium.org/1323293005.
+   */
+  pthread_mutex_t mutex;
+  struct timespec ts;
+  int err;
+
+  if (pthread_mutex_init(&mutex, NULL))
+    abort();
+
+  if (pthread_mutex_lock(&mutex))
+    abort();
+
+  ts.tv_sec = 0;
+  ts.tv_nsec = 1;
+
+  err = pthread_cond_timedwait_relative_np(cond, &mutex, &ts);
+  if (err != 0 && err != ETIMEDOUT)
+    abort();
+
+  if (pthread_mutex_unlock(&mutex))
+    abort();
+
+  if (pthread_mutex_destroy(&mutex))
+    abort();
+#endif /* defined(__APPLE__) && defined(__MACH__) */
+
+  if (pthread_cond_destroy(cond))
+    abort();
+}
+
+void uv_cond_signal(uv_cond_t* cond) {
+  if (pthread_cond_signal(cond))
+    abort();
+}
+
+void uv_cond_broadcast(uv_cond_t* cond) {
+  if (pthread_cond_broadcast(cond))
+    abort();
+}
+
+void uv_cond_wait(uv_cond_t* cond, uv_mutex_t* mutex) {
+  if (pthread_cond_wait(cond, mutex))
+    abort();
+}
+
+
+int uv_cond_timedwait(uv_cond_t* cond, uv_mutex_t* mutex, uint64_t timeout) {
+  int r;
+  struct timespec ts;
+#if defined(__MVS__)
+  struct timeval tv;
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+  ts.tv_sec = timeout / NANOSEC;
+  ts.tv_nsec = timeout % NANOSEC;
+  r = pthread_cond_timedwait_relative_np(cond, mutex, &ts);
+#else
+#if defined(__MVS__)
+  if (gettimeofday(&tv, NULL))
+    abort();
+  timeout += tv.tv_sec * NANOSEC + tv.tv_usec * 1e3;
+#else
+  timeout += uv__hrtime(UV_CLOCK_PRECISE);
+#endif
+  ts.tv_sec = timeout / NANOSEC;
+  ts.tv_nsec = timeout % NANOSEC;
+  r = pthread_cond_timedwait(cond, mutex, &ts);
+#endif
+
+
+  if (r == 0)
+    return 0;
+
+  if (r == ETIMEDOUT)
+    return UV_ETIMEDOUT;
+
+  abort();
+#ifndef __SUNPRO_C
+  return UV_EINVAL;  /* Satisfy the compiler. */
+#endif
+}
+
+
+int uv_key_create(uv_key_t* key) {
+  return UV__ERR(pthread_key_create(key, NULL));
+}
+
+
+void uv_key_delete(uv_key_t* key) {
+  if (pthread_key_delete(*key))
+    abort();
+}
+
+
+void* uv_key_get(uv_key_t* key) {
+  return pthread_getspecific(*key);
+}
+
+
+void uv_key_set(uv_key_t* key, void* value) {
+  if (pthread_setspecific(*key, value))
+    abort();
+}

deps/libuv/src/unix/tty.c

@@ -0,0 +1,402 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+#include "spinlock.h"
+
+#include <stdlib.h>
+#include <assert.h>
+#include <unistd.h>
+#include <termios.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+
+#if defined(__MVS__) && !defined(IMAXBEL)
+#define IMAXBEL 0
+#endif
+
+#if defined(__PASE__)
+/* On IBM i PASE, for better compatibility with running interactive programs in
+ * a 5250 environment, isatty() will return true for the stdin/stdout/stderr
+ * streams created by QSH/QP2TERM.
+ *
+ * For more, see docs on PASE_STDIO_ISATTY in
+ * https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_74/apis/pase_environ.htm
+ *
+ * This behavior causes problems for Node as it expects that if isatty() returns
+ * true that TTY ioctls will be supported by that fd (which is not an
+ * unreasonable expectation) and when they don't it crashes with assertion
+ * errors.
+ *
+ * Here, we create our own version of isatty() that uses ioctl() to identify
+ * whether the fd is *really* a TTY or not.
+ */
+static int isreallyatty(int file) {
+  int rc;
+ 
+  rc = !ioctl(file, TXISATTY + 0x81, NULL);
+  if (!rc && errno != EBADF)
+      errno = ENOTTY;
+
+  return rc;
+}
+#define isatty(fd) isreallyatty(fd)
+#endif
+
+static int orig_termios_fd = -1;
+static struct termios orig_termios;
+static uv_spinlock_t termios_spinlock = UV_SPINLOCK_INITIALIZER;
+
+static int uv__tty_is_slave(const int fd) {
+  int result;
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+  int dummy;
+
+  result = ioctl(fd, TIOCGPTN, &dummy) != 0;
+#elif defined(__APPLE__)
+  char dummy[256];
+
+  result = ioctl(fd, TIOCPTYGNAME, &dummy) != 0;
+#elif defined(__NetBSD__)
+  /*
+   * NetBSD as an extension returns with ptsname(3) and ptsname_r(3) the slave
+   * device name for both descriptors, the master one and slave one.
+   *
+   * Implement function to compare major device number with pts devices.
+   *
+   * The major numbers are machine-dependent, on NetBSD/amd64 they are
+   * respectively:
+   *  - master tty: ptc - major 6
+   *  - slave tty:  pts - major 5
+   */
+
+  struct stat sb;
+  /* Lookup device's major for the pts driver and cache it. */
+  static devmajor_t pts = NODEVMAJOR;
+
+  if (pts == NODEVMAJOR) {
+    pts = getdevmajor("pts", S_IFCHR);
+    if (pts == NODEVMAJOR)
+      abort();
+  }
+
+  /* Lookup stat structure behind the file descriptor. */
+  if (fstat(fd, &sb) != 0)
+    abort();
+
+  /* Assert character device. */
+  if (!S_ISCHR(sb.st_mode))
+    abort();
+
+  /* Assert valid major. */
+  if (major(sb.st_rdev) == NODEVMAJOR)
+    abort();
+
+  result = (pts == major(sb.st_rdev));
+#else
+  /* Fallback to ptsname
+   */
+  result = ptsname(fd) == NULL;
+#endif
+  return result;
+}
+
+int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int unused) {
+  uv_handle_type type;
+  int flags;
+  int newfd;
+  int r;
+  int saved_flags;
+  int mode;
+  char path[256];
+  (void)unused; /* deprecated parameter is no longer needed */
+
+  /* File descriptors that refer to files cannot be monitored with epoll.
+   * That restriction also applies to character devices like /dev/random
+   * (but obviously not /dev/tty.)
+   */
+  type = uv_guess_handle(fd);
+  if (type == UV_FILE || type == UV_UNKNOWN_HANDLE)
+    return UV_EINVAL;
+
+  flags = 0;
+  newfd = -1;
+
+  /* Save the fd flags in case we need to restore them due to an error. */
+  do
+    saved_flags = fcntl(fd, F_GETFL);
+  while (saved_flags == -1 && errno == EINTR);
+
+  if (saved_flags == -1)
+    return UV__ERR(errno);
+  mode = saved_flags & O_ACCMODE;
+
+  /* Reopen the file descriptor when it refers to a tty. This lets us put the
+   * tty in non-blocking mode without affecting other processes that share it
+   * with us.
+   *
+   * Example: `node | cat` - if we put our fd 0 in non-blocking mode, it also
+   * affects fd 1 of `cat` because both file descriptors refer to the same
+   * struct file in the kernel. When we reopen our fd 0, it points to a
+   * different struct file, hence changing its properties doesn't affect
+   * other processes.
+   */
+  if (type == UV_TTY) {
+    /* Reopening a pty in master mode won't work either because the reopened
+     * pty will be in slave mode (*BSD) or reopening will allocate a new
+     * master/slave pair (Linux). Therefore check if the fd points to a
+     * slave device.
+     */
+    if (uv__tty_is_slave(fd) && ttyname_r(fd, path, sizeof(path)) == 0)
+      r = uv__open_cloexec(path, mode | O_NOCTTY);
+    else
+      r = -1;
+
+    if (r < 0) {
+      /* fallback to using blocking writes */
+      if (mode != O_RDONLY)
+        flags |= UV_HANDLE_BLOCKING_WRITES;
+      goto skip;
+    }
+
+    newfd = r;
+
+    r = uv__dup2_cloexec(newfd, fd);
+    if (r < 0 && r != UV_EINVAL) {
+      /* EINVAL means newfd == fd which could conceivably happen if another
+       * thread called close(fd) between our calls to isatty() and open().
+       * That's a rather unlikely event but let's handle it anyway.
+       */
+      uv__close(newfd);
+      return r;
+    }
+
+    fd = newfd;
+  }
+
+skip:
+  uv__stream_init(loop, (uv_stream_t*) tty, UV_TTY);
+
+  /* If anything fails beyond this point we need to remove the handle from
+   * the handle queue, since it was added by uv__handle_init in uv_stream_init.
+   */
+
+  if (!(flags & UV_HANDLE_BLOCKING_WRITES))
+    uv__nonblock(fd, 1);
+
+#if defined(__APPLE__)
+  r = uv__stream_try_select((uv_stream_t*) tty, &fd);
+  if (r) {
+    int rc = r;
+    if (newfd != -1)
+      uv__close(newfd);
+    QUEUE_REMOVE(&tty->handle_queue);
+    do
+      r = fcntl(fd, F_SETFL, saved_flags);
+    while (r == -1 && errno == EINTR);
+    return rc;
+  }
+#endif
+
+  if (mode != O_WRONLY)
+    flags |= UV_HANDLE_READABLE;
+  if (mode != O_RDONLY)
+    flags |= UV_HANDLE_WRITABLE;
+
+  uv__stream_open((uv_stream_t*) tty, fd, flags);
+  tty->mode = UV_TTY_MODE_NORMAL;
+
+  return 0;
+}
+
+static void uv__tty_make_raw(struct termios* tio) {
+  assert(tio != NULL);
+
+#if defined __sun || defined __MVS__
+  /*
+   * This implementation of cfmakeraw for Solaris and derivatives is taken from
+   * http://www.perkin.org.uk/posts/solaris-portability-cfmakeraw.html.
+   */
+  tio->c_iflag &= ~(IMAXBEL | IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR |
+                    IGNCR | ICRNL | IXON);
+  tio->c_oflag &= ~OPOST;
+  tio->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+  tio->c_cflag &= ~(CSIZE | PARENB);
+  tio->c_cflag |= CS8;
+#else
+  cfmakeraw(tio);
+#endif /* #ifdef __sun */
+}
+
+int uv_tty_set_mode(uv_tty_t* tty, uv_tty_mode_t mode) {
+  struct termios tmp;
+  int fd;
+
+  if (tty->mode == (int) mode)
+    return 0;
+
+  fd = uv__stream_fd(tty);
+  if (tty->mode == UV_TTY_MODE_NORMAL && mode != UV_TTY_MODE_NORMAL) {
+    if (tcgetattr(fd, &tty->orig_termios))
+      return UV__ERR(errno);
+
+    /* This is used for uv_tty_reset_mode() */
+    uv_spinlock_lock(&termios_spinlock);
+    if (orig_termios_fd == -1) {
+      orig_termios = tty->orig_termios;
+      orig_termios_fd = fd;
+    }
+    uv_spinlock_unlock(&termios_spinlock);
+  }
+
+  tmp = tty->orig_termios;
+  switch (mode) {
+    case UV_TTY_MODE_NORMAL:
+      break;
+    case UV_TTY_MODE_RAW:
+      tmp.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
+      tmp.c_oflag |= (ONLCR);
+      tmp.c_cflag |= (CS8);
+      tmp.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
+      tmp.c_cc[VMIN] = 1;
+      tmp.c_cc[VTIME] = 0;
+      break;
+    case UV_TTY_MODE_IO:
+      uv__tty_make_raw(&tmp);
+      break;
+  }
+
+  /* Apply changes after draining */
+  if (tcsetattr(fd, TCSADRAIN, &tmp))
+    return UV__ERR(errno);
+
+  tty->mode = mode;
+  return 0;
+}
+
+
+int uv_tty_get_winsize(uv_tty_t* tty, int* width, int* height) {
+  struct winsize ws;
+  int err;
+
+  do
+    err = ioctl(uv__stream_fd(tty), TIOCGWINSZ, &ws);
+  while (err == -1 && errno == EINTR);
+
+  if (err == -1)
+    return UV__ERR(errno);
+
+  *width = ws.ws_col;
+  *height = ws.ws_row;
+
+  return 0;
+}
+
+
+uv_handle_type uv_guess_handle(uv_file file) {
+  struct sockaddr sa;
+  struct stat s;
+  socklen_t len;
+  int type;
+
+  if (file < 0)
+    return UV_UNKNOWN_HANDLE;
+
+  if (isatty(file))
+    return UV_TTY;
+
+  if (fstat(file, &s))
+    return UV_UNKNOWN_HANDLE;
+
+  if (S_ISREG(s.st_mode))
+    return UV_FILE;
+
+  if (S_ISCHR(s.st_mode))
+    return UV_FILE;  /* XXX UV_NAMED_PIPE? */
+
+  if (S_ISFIFO(s.st_mode))
+    return UV_NAMED_PIPE;
+
+  if (!S_ISSOCK(s.st_mode))
+    return UV_UNKNOWN_HANDLE;
+
+  len = sizeof(type);
+  if (getsockopt(file, SOL_SOCKET, SO_TYPE, &type, &len))
+    return UV_UNKNOWN_HANDLE;
+
+  len = sizeof(sa);
+  if (getsockname(file, &sa, &len))
+    return UV_UNKNOWN_HANDLE;
+
+  if (type == SOCK_DGRAM)
+    if (sa.sa_family == AF_INET || sa.sa_family == AF_INET6)
+      return UV_UDP;
+
+  if (type == SOCK_STREAM) {
+#if defined(_AIX) || defined(__DragonFly__)
+    /* on AIX/DragonFly the getsockname call returns an empty sa structure
+     * for sockets of type AF_UNIX.  For all other types it will
+     * return a properly filled in structure.
+     */
+    if (len == 0)
+      return UV_NAMED_PIPE;
+#endif /* defined(_AIX) || defined(__DragonFly__) */
+
+    if (sa.sa_family == AF_INET || sa.sa_family == AF_INET6)
+      return UV_TCP;
+    if (sa.sa_family == AF_UNIX)
+      return UV_NAMED_PIPE;
+  }
+
+  return UV_UNKNOWN_HANDLE;
+}
+
+
+/* This function is async signal-safe, meaning that it's safe to call from
+ * inside a signal handler _unless_ execution was inside uv_tty_set_mode()'s
+ * critical section when the signal was raised.
+ */
+int uv_tty_reset_mode(void) {
+  int saved_errno;
+  int err;
+
+  saved_errno = errno;
+  if (!uv_spinlock_trylock(&termios_spinlock))
+    return UV_EBUSY;  /* In uv_tty_set_mode(). */
+
+  err = 0;
+  if (orig_termios_fd != -1)
+    if (tcsetattr(orig_termios_fd, TCSANOW, &orig_termios))
+      err = UV__ERR(errno);
+
+  uv_spinlock_unlock(&termios_spinlock);
+  errno = saved_errno;
+
+  return err;
+}
+
+void uv_tty_set_vterm_state(uv_tty_vtermstate_t state) {
+}
+
+int uv_tty_get_vterm_state(uv_tty_vtermstate_t* state) {
+  return UV_ENOTSUP;
+}