1 /* Copyright Fedor Indutny. 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 #if !defined(_WIN32)
23
24 #include "uv.h"
25 #include "task.h"
26
27 #include <errno.h>
28 #include <sys/socket.h>
29 #include <unistd.h>
30
31 static uv_tcp_t server_handle;
32 static uv_tcp_t client_handle;
33 static uv_tcp_t peer_handle;
34 static uv_idle_t idle;
35 static uv_connect_t connect_req;
36 static int ticks;
37 static const int kMaxTicks = 10;
38
alloc_cb(uv_handle_t * handle,size_t suggested_size,uv_buf_t * buf)39 static void alloc_cb(uv_handle_t* handle,
40 size_t suggested_size,
41 uv_buf_t* buf) {
42 static char storage[1024];
43 *buf = uv_buf_init(storage, sizeof(storage));
44 }
45
46
idle_cb(uv_idle_t * idle)47 static void idle_cb(uv_idle_t* idle) {
48 if (++ticks < kMaxTicks)
49 return;
50
51 uv_close((uv_handle_t*) &server_handle, NULL);
52 uv_close((uv_handle_t*) &client_handle, NULL);
53 uv_close((uv_handle_t*) &peer_handle, NULL);
54 uv_close((uv_handle_t*) idle, NULL);
55 }
56
57
read_cb(uv_stream_t * handle,ssize_t nread,const uv_buf_t * buf)58 static void read_cb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf) {
59 #ifdef __MVS__
60 char lbuf[12];
61 #endif
62 uv_os_fd_t fd;
63
64 ASSERT_GE(nread, 0);
65 ASSERT_OK(uv_fileno((uv_handle_t*)handle, &fd));
66 ASSERT_OK(uv_idle_start(&idle, idle_cb));
67
68 #ifdef __MVS__
69 /* Need to flush out the OOB data. Otherwise, this callback will get
70 * triggered on every poll with nread = 0.
71 */
72 ASSERT_NE(-1, recv(fd, lbuf, sizeof(lbuf), MSG_OOB));
73 #endif
74 }
75
76
connect_cb(uv_connect_t * req,int status)77 static void connect_cb(uv_connect_t* req, int status) {
78 ASSERT_PTR_EQ(req->handle, (uv_stream_t*) &client_handle);
79 ASSERT_OK(status);
80 }
81
82
connection_cb(uv_stream_t * handle,int status)83 static void connection_cb(uv_stream_t* handle, int status) {
84 int r;
85 uv_os_fd_t fd;
86
87 ASSERT_OK(status);
88 ASSERT_OK(uv_accept(handle, (uv_stream_t*) &peer_handle));
89 ASSERT_OK(uv_read_start((uv_stream_t*) &peer_handle, alloc_cb, read_cb));
90
91 /* Send some OOB data */
92 ASSERT_OK(uv_fileno((uv_handle_t*) &client_handle, &fd));
93
94 ASSERT_OK(uv_stream_set_blocking((uv_stream_t*) &client_handle, 1));
95
96 /* The problem triggers only on a second message, it seem that xnu is not
97 * triggering `kevent()` for the first one
98 */
99 do {
100 r = send(fd, "hello", 5, MSG_OOB);
101 } while (r < 0 && errno == EINTR);
102 ASSERT_EQ(5, r);
103
104 do {
105 r = send(fd, "hello", 5, MSG_OOB);
106 } while (r < 0 && errno == EINTR);
107 ASSERT_EQ(5, r);
108
109 ASSERT_OK(uv_stream_set_blocking((uv_stream_t*) &client_handle, 0));
110 }
111
112
TEST_IMPL(tcp_oob)113 TEST_IMPL(tcp_oob) {
114 struct sockaddr_in addr;
115 uv_loop_t* loop;
116
117 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
118 loop = uv_default_loop();
119
120 ASSERT_OK(uv_tcp_init(loop, &server_handle));
121 ASSERT_OK(uv_tcp_init(loop, &client_handle));
122 ASSERT_OK(uv_tcp_init(loop, &peer_handle));
123 ASSERT_OK(uv_idle_init(loop, &idle));
124 ASSERT_OK(uv_tcp_bind(&server_handle, (const struct sockaddr*) &addr, 0));
125 ASSERT_OK(uv_listen((uv_stream_t*) &server_handle, 1, connection_cb));
126
127 /* Ensure two separate packets */
128 ASSERT_OK(uv_tcp_nodelay(&client_handle, 1));
129
130 ASSERT_OK(uv_tcp_connect(&connect_req,
131 &client_handle,
132 (const struct sockaddr*) &addr,
133 connect_cb));
134 ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
135
136 ASSERT_EQ(ticks, kMaxTicks);
137
138 MAKE_VALGRIND_HAPPY(loop);
139 return 0;
140 }
141
142 #else
143
144 typedef int file_has_no_tests; /* ISO C forbids an empty translation unit. */
145
146 #endif /* !_WIN32 */
147
