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 <string.h>
26#include <errno.h>
27
28/* NOTE: Number should be big enough to trigger this problem */
29#if defined(__CYGWIN__) || defined(__MSYS__)
30/* Cygwin crashes or hangs in socket() with too many AF_INET sockets. */
31static uv_udp_t sockets[1250];
32#else
33static uv_udp_t sockets[2500];
34#endif
35static uv_udp_send_t reqs[ARRAY_SIZE(sockets)];
36static char slab[1];
37static unsigned int recv_cb_called;
38static unsigned int send_cb_called;
39static unsigned int close_cb_called;
40
41static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
42 buf->base = slab;
43 buf->len = sizeof(slab);
44}
45
46
47static void recv_cb(uv_udp_t* handle,
48 ssize_t nread,
49 const uv_buf_t* buf,
50 const struct sockaddr* addr,
51 unsigned flags) {
52 recv_cb_called++;
53}
54
55
56static void send_cb(uv_udp_send_t* req, int status) {
57 send_cb_called++;
58}
59
60
61static void close_cb(uv_handle_t* handle) {
62 close_cb_called++;
63}
64
65
66TEST_IMPL(watcher_cross_stop) {
67#if defined(__MVS__)
68 RETURN_SKIP("zOS does not allow address or port reuse when using UDP sockets");
69#endif
70 uv_loop_t* loop = uv_default_loop();
71 unsigned int i;
72 struct sockaddr_in addr;
73 uv_buf_t buf;
74 char big_string[1024];
75
76 TEST_FILE_LIMIT(ARRAY_SIZE(sockets) + 32);
77
78 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
79 memset(big_string, 'A', sizeof(big_string));
80 buf = uv_buf_init(big_string, sizeof(big_string));
81
82 for (i = 0; i < ARRAY_SIZE(sockets); i++) {
83 ASSERT(0 == uv_udp_init(loop, &sockets[i]));
84 ASSERT(0 == uv_udp_bind(&sockets[i],
85 (const struct sockaddr*) &addr,
86 UV_UDP_REUSEADDR));
87 ASSERT(0 == uv_udp_recv_start(&sockets[i], alloc_cb, recv_cb));
88 ASSERT(0 == uv_udp_send(&reqs[i],
89 &sockets[i],
90 &buf,
91 1,
92 (const struct sockaddr*) &addr,
93 send_cb));
94 }
95
96 while (recv_cb_called == 0)
97 uv_run(loop, UV_RUN_ONCE);
98
99 for (i = 0; i < ARRAY_SIZE(sockets); i++)
100 uv_close((uv_handle_t*) &sockets[i], close_cb);
101
102 ASSERT(recv_cb_called > 0);
103
104 uv_run(loop, UV_RUN_DEFAULT);
105
106 ASSERT(ARRAY_SIZE(sockets) == send_cb_called);
107 ASSERT(ARRAY_SIZE(sockets) == close_cb_called);
108
109 MAKE_VALGRIND_HAPPY();
110 return 0;
111}
112