1 /* Copyright (c) 2015, Ben Noordhuis <info@bnoordhuis.nl>
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
10 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
12 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
13 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
14 */
15
16 #include "uv.h"
17 #include "task.h"
18
19 #ifdef _WIN32
20
TEST_IMPL(pipe_set_non_blocking)21 TEST_IMPL(pipe_set_non_blocking) {
22 RETURN_SKIP("Test not implemented on Windows.");
23 }
24
25 #else /* !_WIN32 */
26
27 #include <errno.h>
28 #include <string.h>
29 #include <sys/socket.h>
30 #include <sys/types.h>
31 #include <sys/un.h>
32 #include <unistd.h>
33
34 struct thread_ctx {
35 uv_barrier_t barrier;
36 int fd;
37 };
38
thread_main(void * arg)39 static void thread_main(void* arg) {
40 struct thread_ctx* ctx;
41 char buf[4096];
42 ssize_t n;
43
44 ctx = arg;
45 uv_barrier_wait(&ctx->barrier);
46
47 do
48 n = read(ctx->fd, buf, sizeof(buf));
49 while (n > 0 || (n == -1 && errno == EINTR));
50
51 ASSERT(n == 0);
52 }
53
TEST_IMPL(pipe_set_non_blocking)54 TEST_IMPL(pipe_set_non_blocking) {
55 struct thread_ctx ctx;
56 uv_pipe_t pipe_handle;
57 uv_thread_t thread;
58 size_t nwritten;
59 char data[4096];
60 uv_buf_t buf;
61 int fd[2];
62 int n;
63
64 ASSERT(0 == uv_pipe_init(uv_default_loop(), &pipe_handle, 0));
65 ASSERT(0 == socketpair(AF_UNIX, SOCK_STREAM, 0, fd));
66 ASSERT(0 == uv_pipe_open(&pipe_handle, fd[0]));
67 ASSERT(0 == uv_stream_set_blocking((uv_stream_t*) &pipe_handle, 1));
68
69 ctx.fd = fd[1];
70 ASSERT(0 == uv_barrier_init(&ctx.barrier, 2));
71 ASSERT(0 == uv_thread_create(&thread, thread_main, &ctx));
72 uv_barrier_wait(&ctx.barrier);
73
74 buf.len = sizeof(data);
75 buf.base = data;
76 memset(data, '.', sizeof(data));
77
78 nwritten = 0;
79 while (nwritten < 10 << 20) {
80 /* The stream is in blocking mode so uv_try_write() should always succeed
81 * with the exact number of bytes that we wanted written.
82 */
83 n = uv_try_write((uv_stream_t*) &pipe_handle, &buf, 1);
84 ASSERT(n == sizeof(data));
85 nwritten += n;
86 }
87
88 uv_close((uv_handle_t*) &pipe_handle, NULL);
89 ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
90
91 ASSERT(0 == uv_thread_join(&thread));
92 ASSERT(0 == close(fd[1])); /* fd[0] is closed by uv_close(). */
93 uv_barrier_destroy(&ctx.barrier);
94
95 MAKE_VALGRIND_HAPPY();
96 return 0;
97 }
98
99 #endif /* !_WIN32 */
100