tildefriends/deps/libuv/test/test-tcp-write-in-a-row.c

143 lines
4.4 KiB
C

/* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "task.h"
#include "uv.h"
static uv_tcp_t server;
static uv_tcp_t client;
static uv_tcp_t incoming;
static int connect_cb_called;
static int close_cb_called;
static int connection_cb_called;
static int write_cb_called;
static uv_write_t small_write;
static uv_write_t big_write;
/* 10 MB, which is large than the send buffer size and the recv buffer */
static char data[1024 * 1024 * 10];
static void close_cb(uv_handle_t* handle) {
close_cb_called++;
}
static void write_cb(uv_write_t* w, int status) {
/* the small write should finish immediately after the big write */
ASSERT_EQ(0, uv_stream_get_write_queue_size((uv_stream_t*) &client));
write_cb_called++;
if (write_cb_called == 2) {
/* we are done */
uv_close((uv_handle_t*) &client, close_cb);
uv_close((uv_handle_t*) &incoming, close_cb);
uv_close((uv_handle_t*) &server, close_cb);
}
}
static void connect_cb(uv_connect_t* _, int status) {
int r;
uv_buf_t buf;
size_t write_queue_size0, write_queue_size1;
ASSERT_EQ(0, status);
connect_cb_called++;
/* fire a big write */
buf = uv_buf_init(data, sizeof(data));
r = uv_write(&small_write, (uv_stream_t*) &client, &buf, 1, write_cb);
ASSERT_EQ(0, r);
/* check that the write process gets stuck */
write_queue_size0 = uv_stream_get_write_queue_size((uv_stream_t*) &client);
ASSERT_GT(write_queue_size0, 0);
/* fire a small write, which should be queued */
buf = uv_buf_init("A", 1);
r = uv_write(&big_write, (uv_stream_t*) &client, &buf, 1, write_cb);
ASSERT_EQ(0, r);
write_queue_size1 = uv_stream_get_write_queue_size((uv_stream_t*) &client);
ASSERT_EQ(write_queue_size1, write_queue_size0 + 1);
}
static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
static char base[1024];
buf->base = base;
buf->len = sizeof(base);
}
static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {}
static void connection_cb(uv_stream_t* tcp, int status) {
ASSERT_EQ(0, status);
connection_cb_called++;
ASSERT_EQ(0, uv_tcp_init(tcp->loop, &incoming));
ASSERT_EQ(0, uv_accept(tcp, (uv_stream_t*) &incoming));
ASSERT_EQ(0, uv_read_start((uv_stream_t*) &incoming, alloc_cb, read_cb));
}
static void start_server(void) {
struct sockaddr_in addr;
ASSERT_EQ(0, uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
ASSERT_EQ(0, uv_tcp_init(uv_default_loop(), &server));
ASSERT_EQ(0, uv_tcp_bind(&server, (struct sockaddr*) &addr, 0));
ASSERT_EQ(0, uv_listen((uv_stream_t*) &server, 128, connection_cb));
}
TEST_IMPL(tcp_write_in_a_row) {
#if defined(_WIN32)
RETURN_SKIP("tcp_write_in_a_row does not work on Windows");
#else
uv_connect_t connect_req;
struct sockaddr_in addr;
start_server();
ASSERT_EQ(0, uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
ASSERT_EQ(0, uv_tcp_init(uv_default_loop(), &client));
ASSERT_EQ(0, uv_tcp_connect(&connect_req,
&client,
(struct sockaddr*) &addr,
connect_cb));
ASSERT_EQ(0, uv_run(uv_default_loop(), UV_RUN_DEFAULT));
ASSERT_EQ(1, connect_cb_called);
ASSERT_EQ(3, close_cb_called);
ASSERT_EQ(1, connection_cb_called);
ASSERT_EQ(2, write_cb_called);
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
#endif
}