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((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client) |
31 | |
32 | static uv_udp_t server; |
33 | static uv_udp_t client; |
34 | |
35 | static int cl_send_cb_called; |
36 | static int sv_recv_cb_called; |
37 | static int close_cb_called; |
38 | |
39 | |
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(suggested_size <= sizeof(slab)); |
46 | buf->base = slab; |
47 | buf->len = sizeof(slab); |
48 | } |
49 | |
50 | |
51 | static void close_cb(uv_handle_t* handle) { |
52 | CHECK_HANDLE(handle); |
53 | ASSERT(1 == uv_is_closing(handle)); |
54 | close_cb_called++; |
55 | } |
56 | |
57 | |
58 | static void cl_send_cb(uv_udp_send_t* req, int status) { |
59 | ASSERT(req != NULL); |
60 | ASSERT(status == 0); |
61 | CHECK_HANDLE(req->handle); |
62 | |
63 | cl_send_cb_called++; |
64 | } |
65 | |
66 | |
67 | static void sv_recv_cb(uv_udp_t* handle, |
68 | ssize_t nread, |
69 | const uv_buf_t* rcvbuf, |
70 | const struct sockaddr* addr, |
71 | unsigned flags) { |
72 | if (nread < 0) { |
73 | ASSERT(0 && "unexpected error" ); |
74 | } |
75 | |
76 | if (nread == 0) { |
77 | /* Returning unused buffer. Don't count towards sv_recv_cb_called */ |
78 | ASSERT(addr == NULL); |
79 | return; |
80 | } |
81 | |
82 | CHECK_HANDLE(handle); |
83 | ASSERT(flags == 0); |
84 | |
85 | ASSERT(addr != NULL); |
86 | ASSERT(nread == 4); |
87 | ASSERT(memcmp("PING" , rcvbuf->base, nread) == 0 || |
88 | memcmp("PANG" , rcvbuf->base, nread) == 0); |
89 | |
90 | if (++sv_recv_cb_called == 2) { |
91 | uv_close((uv_handle_t*) &server, close_cb); |
92 | uv_close((uv_handle_t*) &client, close_cb); |
93 | } |
94 | } |
95 | |
96 | |
97 | TEST_IMPL(udp_send_immediate) { |
98 | struct sockaddr_in addr; |
99 | uv_udp_send_t req1, req2; |
100 | uv_buf_t buf; |
101 | int r; |
102 | |
103 | ASSERT(0 == uv_ip4_addr("0.0.0.0" , TEST_PORT, &addr)); |
104 | |
105 | r = uv_udp_init(uv_default_loop(), &server); |
106 | ASSERT(r == 0); |
107 | |
108 | r = uv_udp_bind(&server, (const struct sockaddr*) &addr, 0); |
109 | ASSERT(r == 0); |
110 | |
111 | r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb); |
112 | ASSERT(r == 0); |
113 | |
114 | ASSERT(0 == uv_ip4_addr("127.0.0.1" , TEST_PORT, &addr)); |
115 | |
116 | r = uv_udp_init(uv_default_loop(), &client); |
117 | ASSERT(r == 0); |
118 | |
119 | /* client sends "PING", then "PANG" */ |
120 | buf = uv_buf_init("PING" , 4); |
121 | |
122 | r = uv_udp_send(&req1, |
123 | &client, |
124 | &buf, |
125 | 1, |
126 | (const struct sockaddr*) &addr, |
127 | cl_send_cb); |
128 | ASSERT(r == 0); |
129 | |
130 | buf = uv_buf_init("PANG" , 4); |
131 | |
132 | r = uv_udp_send(&req2, |
133 | &client, |
134 | &buf, |
135 | 1, |
136 | (const struct sockaddr*) &addr, |
137 | cl_send_cb); |
138 | ASSERT(r == 0); |
139 | |
140 | uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
141 | |
142 | ASSERT(cl_send_cb_called == 2); |
143 | ASSERT(sv_recv_cb_called == 2); |
144 | ASSERT(close_cb_called == 2); |
145 | |
146 | MAKE_VALGRIND_HAPPY(); |
147 | return 0; |
148 | } |
149 | |