Cory McWilliams
f06753b56e
git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3934 ed5197a5-7fde-0310-b194-c3ffbd925b24
215 lines
8.0 KiB
C
215 lines
8.0 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef UV_WIN_REQ_INL_H_
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#define UV_WIN_REQ_INL_H_
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#include <assert.h>
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#include "uv.h"
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#include "internal.h"
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#define SET_REQ_STATUS(req, status) \
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(req)->u.io.overlapped.Internal = (ULONG_PTR) (status)
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#define SET_REQ_ERROR(req, error) \
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SET_REQ_STATUS((req), NTSTATUS_FROM_WIN32((error)))
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/* Note: used open-coded in UV_REQ_INIT() because of a circular dependency
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* between src/uv-common.h and src/win/internal.h.
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*/
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#define SET_REQ_SUCCESS(req) \
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SET_REQ_STATUS((req), STATUS_SUCCESS)
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#define GET_REQ_STATUS(req) \
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((NTSTATUS) (req)->u.io.overlapped.Internal)
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#define REQ_SUCCESS(req) \
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(NT_SUCCESS(GET_REQ_STATUS((req))))
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#define GET_REQ_ERROR(req) \
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(pRtlNtStatusToDosError(GET_REQ_STATUS((req))))
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#define GET_REQ_SOCK_ERROR(req) \
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(uv__ntstatus_to_winsock_error(GET_REQ_STATUS((req))))
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#define REGISTER_HANDLE_REQ(loop, handle, req) \
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do { \
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INCREASE_ACTIVE_COUNT((loop), (handle)); \
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uv__req_register((loop), (req)); \
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} while (0)
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#define UNREGISTER_HANDLE_REQ(loop, handle, req) \
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do { \
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DECREASE_ACTIVE_COUNT((loop), (handle)); \
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uv__req_unregister((loop), (req)); \
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} while (0)
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#define UV_SUCCEEDED_WITHOUT_IOCP(result) \
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((result) && (handle->flags & UV_HANDLE_SYNC_BYPASS_IOCP))
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#define UV_SUCCEEDED_WITH_IOCP(result) \
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((result) || (GetLastError() == ERROR_IO_PENDING))
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#define POST_COMPLETION_FOR_REQ(loop, req) \
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if (!PostQueuedCompletionStatus((loop)->iocp, \
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0, \
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0, \
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&((req)->u.io.overlapped))) { \
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uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus"); \
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}
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INLINE static uv_req_t* uv__overlapped_to_req(OVERLAPPED* overlapped) {
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return CONTAINING_RECORD(overlapped, uv_req_t, u.io.overlapped);
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}
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INLINE static void uv__insert_pending_req(uv_loop_t* loop, uv_req_t* req) {
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req->next_req = NULL;
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if (loop->pending_reqs_tail) {
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#ifdef _DEBUG
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/* Ensure the request is not already in the queue, or the queue
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* will get corrupted.
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*/
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uv_req_t* current = loop->pending_reqs_tail;
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do {
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assert(req != current);
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current = current->next_req;
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} while(current != loop->pending_reqs_tail);
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#endif
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req->next_req = loop->pending_reqs_tail->next_req;
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loop->pending_reqs_tail->next_req = req;
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loop->pending_reqs_tail = req;
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} else {
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req->next_req = req;
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loop->pending_reqs_tail = req;
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}
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}
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#define DELEGATE_STREAM_REQ(loop, req, method, handle_at) \
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do { \
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switch (((uv_handle_t*) (req)->handle_at)->type) { \
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case UV_TCP: \
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uv__process_tcp_##method##_req(loop, \
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(uv_tcp_t*) ((req)->handle_at), \
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req); \
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break; \
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\
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case UV_NAMED_PIPE: \
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uv__process_pipe_##method##_req(loop, \
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(uv_pipe_t*) ((req)->handle_at), \
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req); \
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break; \
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\
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case UV_TTY: \
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uv__process_tty_##method##_req(loop, \
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(uv_tty_t*) ((req)->handle_at), \
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req); \
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break; \
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\
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default: \
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assert(0); \
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} \
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} while (0)
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INLINE static void uv__process_reqs(uv_loop_t* loop) {
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uv_req_t* req;
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uv_req_t* first;
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uv_req_t* next;
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if (loop->pending_reqs_tail == NULL)
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return;
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first = loop->pending_reqs_tail->next_req;
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next = first;
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loop->pending_reqs_tail = NULL;
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while (next != NULL) {
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req = next;
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next = req->next_req != first ? req->next_req : NULL;
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switch (req->type) {
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case UV_READ:
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DELEGATE_STREAM_REQ(loop, req, read, data);
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break;
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case UV_WRITE:
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DELEGATE_STREAM_REQ(loop, (uv_write_t*) req, write, handle);
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break;
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case UV_ACCEPT:
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DELEGATE_STREAM_REQ(loop, req, accept, data);
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break;
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case UV_CONNECT:
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DELEGATE_STREAM_REQ(loop, (uv_connect_t*) req, connect, handle);
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break;
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case UV_SHUTDOWN:
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DELEGATE_STREAM_REQ(loop, (uv_shutdown_t*) req, shutdown, handle);
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break;
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case UV_UDP_RECV:
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uv__process_udp_recv_req(loop, (uv_udp_t*) req->data, req);
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break;
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case UV_UDP_SEND:
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uv__process_udp_send_req(loop,
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((uv_udp_send_t*) req)->handle,
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(uv_udp_send_t*) req);
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break;
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case UV_WAKEUP:
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uv__process_async_wakeup_req(loop, (uv_async_t*) req->data, req);
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break;
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case UV_SIGNAL_REQ:
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uv__process_signal_req(loop, (uv_signal_t*) req->data, req);
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break;
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case UV_POLL_REQ:
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uv__process_poll_req(loop, (uv_poll_t*) req->data, req);
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break;
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case UV_PROCESS_EXIT:
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uv__process_proc_exit(loop, (uv_process_t*) req->data);
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break;
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case UV_FS_EVENT_REQ:
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uv__process_fs_event_req(loop, req, (uv_fs_event_t*) req->data);
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break;
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default:
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assert(0);
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}
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}
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}
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#endif /* UV_WIN_REQ_INL_H_ */
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