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#include <stdio.h>
25#include <stdlib.h>
26#include <errno.h>
27
28#ifndef HAVE_KQUEUE
29# if defined(__APPLE__) || \
30 defined(__DragonFly__) || \
31 defined(__FreeBSD__) || \
32 defined(__FreeBSD_kernel__) || \
33 defined(__OpenBSD__) || \
34 defined(__NetBSD__)
35# define HAVE_KQUEUE 1
36# endif
37#endif
38
39#ifndef HAVE_EPOLL
40# if defined(__linux__)
41# define HAVE_EPOLL 1
42# endif
43#endif
44
45#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL)
46
47#if defined(HAVE_KQUEUE)
48# include <sys/types.h>
49# include <sys/event.h>
50# include <sys/time.h>
51#endif
52
53#if defined(HAVE_EPOLL)
54# include <sys/epoll.h>
55#endif
56
57static uv_thread_t embed_thread;
58static uv_sem_t embed_sem;
59static uv_timer_t embed_timer;
60static uv_async_t embed_async;
61static volatile int embed_closed;
62
63static int embed_timer_called;
64
65
66static void embed_thread_runner(void* arg) {
67 int r;
68 int fd;
69 int timeout;
70
71 while (!embed_closed) {
72 fd = uv_backend_fd(uv_default_loop());
73 timeout = uv_backend_timeout(uv_default_loop());
74
75 do {
76#if defined(HAVE_KQUEUE)
77 struct timespec ts;
78 ts.tv_sec = timeout / 1000;
79 ts.tv_nsec = (timeout % 1000) * 1000000;
80 r = kevent(fd, NULL, 0, NULL, 0, &ts);
81#elif defined(HAVE_EPOLL)
82 {
83 struct epoll_event ev;
84 r = epoll_wait(fd, &ev, 1, timeout);
85 }
86#endif
87 } while (r == -1 && errno == EINTR);
88 uv_async_send(&embed_async);
89 uv_sem_wait(&embed_sem);
90 }
91}
92
93
94static void embed_cb(uv_async_t* async) {
95 uv_run(uv_default_loop(), UV_RUN_ONCE);
96
97 uv_sem_post(&embed_sem);
98}
99
100
101static void embed_timer_cb(uv_timer_t* timer) {
102 embed_timer_called++;
103 embed_closed = 1;
104
105 uv_close((uv_handle_t*) &embed_async, NULL);
106}
107#endif
108
109
110TEST_IMPL(embed) {
111#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL)
112 uv_loop_t external;
113
114 ASSERT(0 == uv_loop_init(&external));
115
116 embed_timer_called = 0;
117 embed_closed = 0;
118
119 uv_async_init(&external, &embed_async, embed_cb);
120
121 /* Start timer in default loop */
122 uv_timer_init(uv_default_loop(), &embed_timer);
123 uv_timer_start(&embed_timer, embed_timer_cb, 250, 0);
124
125 /* Start worker that will interrupt external loop */
126 uv_sem_init(&embed_sem, 0);
127 uv_thread_create(&embed_thread, embed_thread_runner, NULL);
128
129 /* But run external loop */
130 uv_run(&external, UV_RUN_DEFAULT);
131
132 uv_thread_join(&embed_thread);
133 uv_loop_close(&external);
134
135 ASSERT(embed_timer_called == 1);
136#endif
137
138 return 0;
139}
140