1/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 * IN THE SOFTWARE.
20 */
21
22#include "uv.h"
23#include "task.h"
24
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28
29#define CHECK_HANDLE(handle) \
30  ASSERT_NE((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client, 0)
31
32static uv_udp_t server;
33static uv_udp_t client;
34
35static int sv_recv_cb_called;
36
37static int close_cb_called;
38
39
40static void alloc_cb(uv_handle_t* handle,
41                     size_t suggested_size,
42                     uv_buf_t* buf) {
43  static char slab[65536];
44  CHECK_HANDLE(handle);
45  ASSERT_LE(suggested_size, sizeof(slab));
46  buf->base = slab;
47  buf->len = sizeof(slab);
48}
49
50
51static void close_cb(uv_handle_t* handle) {
52  CHECK_HANDLE(handle);
53  ASSERT(uv_is_closing(handle));
54  close_cb_called++;
55}
56
57
58static void sv_recv_cb(uv_udp_t* handle,
59                       ssize_t nread,
60                       const uv_buf_t* rcvbuf,
61                       const struct sockaddr* addr,
62                       unsigned flags) {
63  ASSERT_GT(nread, 0);
64
65  if (nread == 0) {
66    ASSERT_NULL(addr);
67    return;
68  }
69
70  ASSERT_EQ(4, nread);
71  ASSERT_NOT_NULL(addr);
72
73  ASSERT_OK(memcmp("EXIT", rcvbuf->base, nread));
74  uv_close((uv_handle_t*) handle, close_cb);
75  uv_close((uv_handle_t*) &client, close_cb);
76
77  sv_recv_cb_called++;
78}
79
80
81TEST_IMPL(udp_try_send) {
82  struct sockaddr_in addr;
83  static char buffer[64 * 1024];
84  uv_buf_t buf;
85  int r;
86
87  ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
88
89  r = uv_udp_init(uv_default_loop(), &server);
90  ASSERT_OK(r);
91
92  r = uv_udp_bind(&server, (const struct sockaddr*) &addr, 0);
93  ASSERT_OK(r);
94
95  r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
96  ASSERT_OK(r);
97
98  ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
99
100  r = uv_udp_init(uv_default_loop(), &client);
101  ASSERT_OK(r);
102
103  buf = uv_buf_init(buffer, sizeof(buffer));
104  r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &addr);
105  ASSERT_EQ(r, UV_EMSGSIZE);
106
107  buf = uv_buf_init("EXIT", 4);
108  r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &addr);
109  ASSERT_EQ(4, r);
110
111  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
112
113  ASSERT_EQ(2, close_cb_called);
114  ASSERT_EQ(1, sv_recv_cb_called);
115
116  ASSERT_OK(client.send_queue_size);
117  ASSERT_OK(server.send_queue_size);
118
119  MAKE_VALGRIND_HAPPY(uv_default_loop());
120  return 0;
121}
122