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 | |
57 | static uv_thread_t embed_thread; |
58 | static uv_sem_t embed_sem; |
59 | static uv_timer_t embed_timer; |
60 | static uv_async_t embed_async; |
61 | static volatile int embed_closed; |
62 | |
63 | static int embed_timer_called; |
64 | |
65 | |
66 | static 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 | |
94 | static 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 | |
101 | static 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 | |
110 | TEST_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 | |