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
32 static uv_udp_t server;
33 static uv_udp_t client;
34
35 static int sv_recv_cb_called;
36
37 static int close_cb_called;
38
39
alloc_cb(uv_handle_t * handle,size_t suggested_size,uv_buf_t * buf)40 static 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
close_cb(uv_handle_t * handle)51 static void close_cb(uv_handle_t* handle) {
52 CHECK_HANDLE(handle);
53 ASSERT(uv_is_closing(handle));
54 close_cb_called++;
55 }
56
57
sv_recv_cb(uv_udp_t * handle,ssize_t nread,const uv_buf_t * rcvbuf,const struct sockaddr * addr,unsigned flags)58 static 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 if (nread == 0) {
64 ASSERT_NULL(addr);
65 return;
66 }
67
68 ASSERT_EQ(4, nread);
69 ASSERT_NOT_NULL(addr);
70
71 if (!memcmp("EXIT", rcvbuf->base, nread)) {
72 uv_close((uv_handle_t*) handle, close_cb);
73 uv_close((uv_handle_t*) &client, close_cb);
74 } else {
75 ASSERT_MEM_EQ(rcvbuf->base, "HELO", 4);
76 }
77
78 sv_recv_cb_called++;
79
80 if (sv_recv_cb_called == 2)
81 uv_udp_recv_stop(handle);
82 }
83
84
TEST_IMPL(udp_try_send)85 TEST_IMPL(udp_try_send) {
86 struct sockaddr_in addr;
87 static char buffer[64 * 1024];
88 uv_buf_t buf;
89 int r;
90
91 ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
92
93 r = uv_udp_init(uv_default_loop(), &server);
94 ASSERT_OK(r);
95
96 r = uv_udp_bind(&server, (const struct sockaddr*) &addr, 0);
97 ASSERT_OK(r);
98
99 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
100 ASSERT_OK(r);
101
102 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
103
104 r = uv_udp_init(uv_default_loop(), &client);
105 ASSERT_OK(r);
106
107 buf = uv_buf_init(buffer, sizeof(buffer));
108
109 r = uv_udp_try_send(&client, &buf, 0, (const struct sockaddr*) &addr);
110 ASSERT_EQ(r, UV_EINVAL);
111
112 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &addr);
113 ASSERT_EQ(r, UV_EMSGSIZE);
114
115 uv_buf_t* bufs[] = {&buf, &buf};
116 unsigned int nbufs[] = {1, 1};
117 struct sockaddr* addrs[] = {
118 (struct sockaddr*) &addr,
119 (struct sockaddr*) &addr,
120 };
121
122 ASSERT_EQ(0, sv_recv_cb_called);
123
124 buf = uv_buf_init("HELO", 4);
125 r = uv_udp_try_send2(&client, 2, bufs, nbufs, addrs, /*flags*/0);
126 ASSERT_EQ(r, 2);
127
128 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
129
130 ASSERT_EQ(2, sv_recv_cb_called);
131
132 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
133 ASSERT_OK(r);
134
135 buf = uv_buf_init("EXIT", 4);
136 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &addr);
137 ASSERT_EQ(4, r);
138
139 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
140
141 ASSERT_EQ(2, close_cb_called);
142 ASSERT_EQ(3, sv_recv_cb_called);
143
144 ASSERT_OK(client.send_queue_size);
145 ASSERT_OK(server.send_queue_size);
146
147 MAKE_VALGRIND_HAPPY(uv_default_loop());
148 return 0;
149 }
150
