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 | |
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 | |
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 | |
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(nread >= 0); |
65 | ASSERT(0 == uv_fileno((uv_handle_t*)handle, &fd)); |
66 | ASSERT(0 == 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(-1 != recv(fd, lbuf, sizeof(lbuf), MSG_OOB)); |
73 | #endif |
74 | } |
75 | |
76 | |
77 | static void connect_cb(uv_connect_t* req, int status) { |
78 | ASSERT(req->handle == (uv_stream_t*) &client_handle); |
79 | ASSERT(0 == status); |
80 | } |
81 | |
82 | |
83 | static void connection_cb(uv_stream_t* handle, int status) { |
84 | int r; |
85 | uv_os_fd_t fd; |
86 | |
87 | ASSERT(0 == status); |
88 | ASSERT(0 == uv_accept(handle, (uv_stream_t*) &peer_handle)); |
89 | ASSERT(0 == uv_read_start((uv_stream_t*) &peer_handle, alloc_cb, read_cb)); |
90 | |
91 | /* Send some OOB data */ |
92 | ASSERT(0 == uv_fileno((uv_handle_t*) &client_handle, &fd)); |
93 | |
94 | ASSERT(0 == 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(5 == r); |
103 | |
104 | do { |
105 | r = send(fd, "hello" , 5, MSG_OOB); |
106 | } while (r < 0 && errno == EINTR); |
107 | ASSERT(5 == r); |
108 | |
109 | ASSERT(0 == uv_stream_set_blocking((uv_stream_t*) &client_handle, 0)); |
110 | } |
111 | |
112 | |
113 | TEST_IMPL(tcp_oob) { |
114 | struct sockaddr_in addr; |
115 | uv_loop_t* loop; |
116 | |
117 | ASSERT(0 == uv_ip4_addr("127.0.0.1" , TEST_PORT, &addr)); |
118 | loop = uv_default_loop(); |
119 | |
120 | ASSERT(0 == uv_tcp_init(loop, &server_handle)); |
121 | ASSERT(0 == uv_tcp_init(loop, &client_handle)); |
122 | ASSERT(0 == uv_tcp_init(loop, &peer_handle)); |
123 | ASSERT(0 == uv_idle_init(loop, &idle)); |
124 | ASSERT(0 == uv_tcp_bind(&server_handle, (const struct sockaddr*) &addr, 0)); |
125 | ASSERT(0 == uv_listen((uv_stream_t*) &server_handle, 1, connection_cb)); |
126 | |
127 | /* Ensure two separate packets */ |
128 | ASSERT(0 == uv_tcp_nodelay(&client_handle, 1)); |
129 | |
130 | ASSERT(0 == uv_tcp_connect(&connect_req, |
131 | &client_handle, |
132 | (const struct sockaddr*) &addr, |
133 | connect_cb)); |
134 | ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT)); |
135 | |
136 | ASSERT(ticks == kMaxTicks); |
137 | |
138 | MAKE_VALGRIND_HAPPY(); |
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 | |