tildefriends/deps/libuv/test/test-tcp-close-reset.c

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/* 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 "task.h"
#include <errno.h>
#include <string.h> /* memset */
#ifdef _WIN32
# define INVALID_FD (INVALID_HANDLE_VALUE)
#else
# define INVALID_FD (-1)
#endif
static uv_loop_t* loop;
static uv_tcp_t tcp_server;
static uv_tcp_t tcp_client;
static uv_tcp_t tcp_accepted;
static uv_connect_t connect_req;
static uv_shutdown_t shutdown_req;
static uv_write_t write_reqs[4];
static int client_close;
static int shutdown_before_close;
static int write_cb_called;
static int close_cb_called;
static int shutdown_cb_called;
static void connect_cb(uv_connect_t* req, int status);
static void write_cb(uv_write_t* req, int status);
static void close_cb(uv_handle_t* handle);
static void shutdown_cb(uv_shutdown_t* req, int status);
static int read_size;
static void do_write(uv_tcp_t* handle) {
uv_buf_t buf;
unsigned i;
int r;
buf = uv_buf_init("PING", 4);
for (i = 0; i < ARRAY_SIZE(write_reqs); i++) {
r = uv_write(&write_reqs[i], (uv_stream_t*) handle, &buf, 1, write_cb);
ASSERT(r == 0);
}
}
static void do_close(uv_tcp_t* handle) {
uv_os_fd_t fd;
int r;
if (shutdown_before_close == 1) {
ASSERT(0 == uv_shutdown(&shutdown_req, (uv_stream_t*) handle, shutdown_cb));
ASSERT(UV_EINVAL == uv_tcp_close_reset(handle, close_cb));
} else if (shutdown_before_close == 2) {
r = uv_fileno((const uv_handle_t*) handle, &fd);
ASSERT_EQ(r, 0);
ASSERT_NE(fd, INVALID_FD);
#ifdef _WIN32
ASSERT_EQ(0, shutdown(fd, SD_BOTH));
#else
ASSERT_EQ(0, shutdown(fd, SHUT_RDWR));
#endif
ASSERT_EQ(0, uv_tcp_close_reset(handle, close_cb));
} else {
ASSERT(0 == uv_tcp_close_reset(handle, close_cb));
ASSERT(UV_ENOTCONN == uv_shutdown(&shutdown_req, (uv_stream_t*) handle, shutdown_cb));
}
uv_close((uv_handle_t*) &tcp_server, NULL);
}
static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
static char slab[1024];
buf->base = slab;
buf->len = sizeof(slab);
}
static void read_cb2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
ASSERT((uv_tcp_t*)stream == &tcp_client);
if (nread == UV_EOF)
uv_close((uv_handle_t*) stream, NULL);
}
static void connect_cb(uv_connect_t* conn_req, int status) {
ASSERT(conn_req == &connect_req);
uv_read_start((uv_stream_t*) &tcp_client, alloc_cb, read_cb2);
do_write(&tcp_client);
if (client_close)
do_close(&tcp_client);
}
static void write_cb(uv_write_t* req, int status) {
/* write callbacks should run before the close callback */
ASSERT(close_cb_called == 0);
ASSERT(req->handle == (uv_stream_t*)&tcp_client);
write_cb_called++;
}
static void close_cb(uv_handle_t* handle) {
if (client_close)
ASSERT(handle == (uv_handle_t*) &tcp_client);
else
ASSERT(handle == (uv_handle_t*) &tcp_accepted);
close_cb_called++;
}
static void shutdown_cb(uv_shutdown_t* req, int status) {
if (client_close)
ASSERT(req->handle == (uv_stream_t*) &tcp_client);
else
ASSERT(req->handle == (uv_stream_t*) &tcp_accepted);
shutdown_cb_called++;
}
static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
ASSERT((uv_tcp_t*)stream == &tcp_accepted);
if (nread < 0) {
uv_close((uv_handle_t*) stream, NULL);
} else {
read_size += nread;
if (read_size == 16 && client_close == 0)
do_close(&tcp_accepted);
}
}
static void connection_cb(uv_stream_t* server, int status) {
ASSERT(status == 0);
ASSERT(0 == uv_tcp_init(loop, &tcp_accepted));
ASSERT(0 == uv_accept(server, (uv_stream_t*) &tcp_accepted));
uv_read_start((uv_stream_t*) &tcp_accepted, alloc_cb, read_cb);
}
static void start_server(uv_loop_t* loop, uv_tcp_t* handle) {
struct sockaddr_in addr;
int r;
ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
r = uv_tcp_init(loop, handle);
ASSERT(r == 0);
r = uv_tcp_bind(handle, (const struct sockaddr*) &addr, 0);
ASSERT(r == 0);
r = uv_listen((uv_stream_t*)handle, 128, connection_cb);
ASSERT(r == 0);
}
static void do_connect(uv_loop_t* loop, uv_tcp_t* tcp_client) {
struct sockaddr_in addr;
int r;
ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
r = uv_tcp_init(loop, tcp_client);
ASSERT(r == 0);
r = uv_tcp_connect(&connect_req,
tcp_client,
(const struct sockaddr*) &addr,
connect_cb);
ASSERT(r == 0);
}
/* Check that pending write requests have their callbacks
* invoked when the handle is closed.
*/
TEST_IMPL(tcp_close_reset_client) {
int r;
loop = uv_default_loop();
start_server(loop, &tcp_server);
client_close = 1;
shutdown_before_close = 0;
do_connect(loop, &tcp_client);
ASSERT(write_cb_called == 0);
ASSERT(close_cb_called == 0);
ASSERT(shutdown_cb_called == 0);
r = uv_run(loop, UV_RUN_DEFAULT);
ASSERT(r == 0);
ASSERT(write_cb_called == 4);
ASSERT(close_cb_called == 1);
ASSERT(shutdown_cb_called == 0);
MAKE_VALGRIND_HAPPY(loop);
return 0;
}
TEST_IMPL(tcp_close_reset_client_after_shutdown) {
int r;
loop = uv_default_loop();
start_server(loop, &tcp_server);
client_close = 1;
shutdown_before_close = 1;
do_connect(loop, &tcp_client);
ASSERT(write_cb_called == 0);
ASSERT(close_cb_called == 0);
ASSERT(shutdown_cb_called == 0);
r = uv_run(loop, UV_RUN_DEFAULT);
ASSERT(r == 0);
ASSERT(write_cb_called == 4);
ASSERT(close_cb_called == 0);
ASSERT(shutdown_cb_called == 1);
MAKE_VALGRIND_HAPPY(loop);
return 0;
}
TEST_IMPL(tcp_close_reset_accepted) {
int r;
loop = uv_default_loop();
start_server(loop, &tcp_server);
client_close = 0;
shutdown_before_close = 0;
do_connect(loop, &tcp_client);
ASSERT(write_cb_called == 0);
ASSERT(close_cb_called == 0);
ASSERT(shutdown_cb_called == 0);
r = uv_run(loop, UV_RUN_DEFAULT);
ASSERT(r == 0);
ASSERT(write_cb_called == 4);
ASSERT(close_cb_called == 1);
ASSERT(shutdown_cb_called == 0);
MAKE_VALGRIND_HAPPY(loop);
return 0;
}
TEST_IMPL(tcp_close_reset_accepted_after_shutdown) {
int r;
loop = uv_default_loop();
start_server(loop, &tcp_server);
client_close = 0;
shutdown_before_close = 1;
do_connect(loop, &tcp_client);
ASSERT(write_cb_called == 0);
ASSERT(close_cb_called == 0);
ASSERT(shutdown_cb_called == 0);
r = uv_run(loop, UV_RUN_DEFAULT);
ASSERT(r == 0);
ASSERT(write_cb_called == 4);
ASSERT(close_cb_called == 0);
ASSERT(shutdown_cb_called == 1);
MAKE_VALGRIND_HAPPY(loop);
return 0;
}
TEST_IMPL(tcp_close_reset_accepted_after_socket_shutdown) {
int r;
loop = uv_default_loop();
start_server(loop, &tcp_server);
client_close = 0;
shutdown_before_close = 2;
do_connect(loop, &tcp_client);
ASSERT_EQ(write_cb_called, 0);
ASSERT_EQ(close_cb_called, 0);
ASSERT_EQ(shutdown_cb_called, 0);
r = uv_run(loop, UV_RUN_DEFAULT);
ASSERT_EQ(r, 0);
ASSERT_EQ(write_cb_called, 4);
ASSERT_EQ(close_cb_called, 1);
ASSERT_EQ(shutdown_cb_called, 0);
MAKE_VALGRIND_HAPPY(loop);
return 0;
}