tildefriends/deps/libuv/test/test-udp-recv-in-a-row.c

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

122 lines
3.6 KiB
C
Raw Normal View History

/* Copyright The libuv project and 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
static uv_udp_t server;
static uv_udp_t client;
static uv_check_t check_handle;
static uv_buf_t buf;
static struct sockaddr_in addr;
static char send_data[10];
static int check_cb_called;
#define N 5
static int recv_cnt;
static void alloc_cb(uv_handle_t* handle,
size_t suggested_size,
uv_buf_t* buf) {
static char slab[sizeof(send_data)];
buf->base = slab;
buf->len = sizeof(slab);
}
static void sv_recv_cb(uv_udp_t* handle,
ssize_t nread,
const uv_buf_t* rcvbuf,
const struct sockaddr* addr,
unsigned flags) {
if (++ recv_cnt < N) {
ASSERT_EQ(sizeof(send_data), nread);
} else {
ASSERT_OK(nread);
}
}
static void check_cb(uv_check_t* handle) {
ASSERT_PTR_EQ(&check_handle, handle);
/**
* sv_recv_cb() is called with nread set to zero to indicate
* there is no more udp packet in the kernel, so the actual
* recv_cnt is one larger than N.
*/
ASSERT_EQ(N+1, recv_cnt);
check_cb_called = 1;
/* we are done */
ASSERT_OK(uv_check_stop(handle));
uv_close((uv_handle_t*) &client, NULL);
uv_close((uv_handle_t*) &check_handle, NULL);
uv_close((uv_handle_t*) &server, NULL);
}
TEST_IMPL(udp_recv_in_a_row) {
int i, r;
ASSERT_OK(uv_check_init(uv_default_loop(), &check_handle));
ASSERT_OK(uv_check_start(&check_handle, check_cb));
ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
ASSERT_OK(uv_udp_init(uv_default_loop(), &server));
ASSERT_OK(uv_udp_bind(&server, (const struct sockaddr*) &addr, 0));
ASSERT_OK(uv_udp_recv_start(&server, alloc_cb, sv_recv_cb));
ASSERT_OK(uv_udp_init(uv_default_loop(), &client));
/* send N-1 udp packets */
buf = uv_buf_init(send_data, sizeof(send_data));
for (i = 0; i < N - 1; i ++) {
r = uv_udp_try_send(&client,
&buf,
1,
(const struct sockaddr*) &addr);
ASSERT_EQ(sizeof(send_data), r);
}
/* send an empty udp packet */
buf = uv_buf_init(NULL, 0);
r = uv_udp_try_send(&client,
&buf,
1,
(const struct sockaddr*) &addr);
ASSERT_OK(r);
/* check_cb() asserts that the N packets can be received
* before it gets called.
*/
ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
ASSERT(check_cb_called);
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
}