/src/ffmpeg/libavutil/thread.h
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1 | | /* |
2 | | * This file is part of FFmpeg. |
3 | | * |
4 | | * FFmpeg is free software; you can redistribute it and/or |
5 | | * modify it under the terms of the GNU Lesser General Public |
6 | | * License as published by the Free Software Foundation; either |
7 | | * version 2.1 of the License, or (at your option) any later version. |
8 | | * |
9 | | * FFmpeg is distributed in the hope that it will be useful, |
10 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | | * Lesser General Public License for more details. |
13 | | * |
14 | | * You should have received a copy of the GNU Lesser General Public |
15 | | * License along with FFmpeg; if not, write to the Free Software |
16 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
17 | | */ |
18 | | |
19 | | // This header should only be used to simplify code where |
20 | | // threading is optional, not as a generic threading abstraction. |
21 | | |
22 | | #ifndef AVUTIL_THREAD_H |
23 | | #define AVUTIL_THREAD_H |
24 | | |
25 | | #include "config.h" |
26 | | |
27 | | #if HAVE_PRCTL |
28 | | #include <sys/prctl.h> |
29 | | #elif (HAVE_PTHREAD_SETNAME_NP || HAVE_PTHREAD_SET_NAME_NP) && HAVE_PTHREAD_NP_H |
30 | | #include <pthread_np.h> |
31 | | #endif |
32 | | |
33 | | #include "error.h" |
34 | | |
35 | | #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS |
36 | | |
37 | | #if HAVE_PTHREADS |
38 | | #include <pthread.h> |
39 | | |
40 | | #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1 |
41 | | |
42 | | #include <stdlib.h> |
43 | | |
44 | | #include "log.h" |
45 | | #include "macros.h" |
46 | | |
47 | | #define ASSERT_PTHREAD_ABORT(func, ret) do { \ |
48 | | char errbuf[AV_ERROR_MAX_STRING_SIZE] = ""; \ |
49 | | av_log(NULL, AV_LOG_FATAL, AV_STRINGIFY(func) \ |
50 | | " failed with error: %s\n", \ |
51 | | av_make_error_string(errbuf, AV_ERROR_MAX_STRING_SIZE, \ |
52 | | AVERROR(ret))); \ |
53 | | abort(); \ |
54 | | } while (0) |
55 | | |
56 | | #define ASSERT_PTHREAD_NORET(func, ...) do { \ |
57 | | int ret = func(__VA_ARGS__); \ |
58 | | if (ret) \ |
59 | | ASSERT_PTHREAD_ABORT(func, ret); \ |
60 | | } while (0) |
61 | | |
62 | | #define ASSERT_PTHREAD(func, ...) do { \ |
63 | | ASSERT_PTHREAD_NORET(func, __VA_ARGS__); \ |
64 | | return 0; \ |
65 | | } while (0) |
66 | | |
67 | | static inline int strict_pthread_join(pthread_t thread, void **value_ptr) |
68 | | { |
69 | | ASSERT_PTHREAD(pthread_join, thread, value_ptr); |
70 | | } |
71 | | |
72 | | static inline int strict_pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr) |
73 | | { |
74 | | if (attr) { |
75 | | ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, attr); |
76 | | } else { |
77 | | pthread_mutexattr_t local_attr; |
78 | | ASSERT_PTHREAD_NORET(pthread_mutexattr_init, &local_attr); |
79 | | ASSERT_PTHREAD_NORET(pthread_mutexattr_settype, &local_attr, PTHREAD_MUTEX_ERRORCHECK); |
80 | | ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, &local_attr); |
81 | | ASSERT_PTHREAD_NORET(pthread_mutexattr_destroy, &local_attr); |
82 | | } |
83 | | return 0; |
84 | | } |
85 | | |
86 | | static inline int strict_pthread_mutex_destroy(pthread_mutex_t *mutex) |
87 | | { |
88 | | ASSERT_PTHREAD(pthread_mutex_destroy, mutex); |
89 | | } |
90 | | |
91 | | static inline int strict_pthread_mutex_lock(pthread_mutex_t *mutex) |
92 | | { |
93 | | ASSERT_PTHREAD(pthread_mutex_lock, mutex); |
94 | | } |
95 | | |
96 | | static inline int strict_pthread_mutex_unlock(pthread_mutex_t *mutex) |
97 | | { |
98 | | ASSERT_PTHREAD(pthread_mutex_unlock, mutex); |
99 | | } |
100 | | |
101 | | static inline int strict_pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr) |
102 | | { |
103 | | ASSERT_PTHREAD(pthread_cond_init, cond, attr); |
104 | | } |
105 | | |
106 | | static inline int strict_pthread_cond_destroy(pthread_cond_t *cond) |
107 | | { |
108 | | ASSERT_PTHREAD(pthread_cond_destroy, cond); |
109 | | } |
110 | | |
111 | | static inline int strict_pthread_cond_signal(pthread_cond_t *cond) |
112 | | { |
113 | | ASSERT_PTHREAD(pthread_cond_signal, cond); |
114 | | } |
115 | | |
116 | | static inline int strict_pthread_cond_broadcast(pthread_cond_t *cond) |
117 | | { |
118 | | ASSERT_PTHREAD(pthread_cond_broadcast, cond); |
119 | | } |
120 | | |
121 | | static inline int strict_pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) |
122 | | { |
123 | | ASSERT_PTHREAD(pthread_cond_wait, cond, mutex); |
124 | | } |
125 | | |
126 | | static inline int strict_pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, |
127 | | const struct timespec *abstime) |
128 | | { |
129 | | int ret = pthread_cond_timedwait(cond, mutex, abstime); |
130 | | if (ret && ret != ETIMEDOUT) |
131 | | ASSERT_PTHREAD_ABORT(pthread_cond_timedwait, ret); |
132 | | return ret; |
133 | | } |
134 | | |
135 | | static inline int strict_pthread_once(pthread_once_t *once_control, void (*init_routine)(void)) |
136 | | { |
137 | | ASSERT_PTHREAD(pthread_once, once_control, init_routine); |
138 | | } |
139 | | |
140 | | #define pthread_join strict_pthread_join |
141 | | #define pthread_mutex_init strict_pthread_mutex_init |
142 | | #define pthread_mutex_destroy strict_pthread_mutex_destroy |
143 | | #define pthread_mutex_lock strict_pthread_mutex_lock |
144 | | #define pthread_mutex_unlock strict_pthread_mutex_unlock |
145 | | #define pthread_cond_init strict_pthread_cond_init |
146 | | #define pthread_cond_destroy strict_pthread_cond_destroy |
147 | | #define pthread_cond_signal strict_pthread_cond_signal |
148 | | #define pthread_cond_broadcast strict_pthread_cond_broadcast |
149 | | #define pthread_cond_wait strict_pthread_cond_wait |
150 | | #define pthread_cond_timedwait strict_pthread_cond_timedwait |
151 | | #define pthread_once strict_pthread_once |
152 | | #endif |
153 | | |
154 | | #elif HAVE_OS2THREADS |
155 | | #include "compat/os2threads.h" |
156 | | #else |
157 | | #include "compat/w32pthreads.h" |
158 | | #endif |
159 | | |
160 | | #define AVMutex pthread_mutex_t |
161 | | #define AV_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER |
162 | | |
163 | 0 | #define ff_mutex_init pthread_mutex_init |
164 | 0 | #define ff_mutex_lock pthread_mutex_lock |
165 | 0 | #define ff_mutex_unlock pthread_mutex_unlock |
166 | 0 | #define ff_mutex_destroy pthread_mutex_destroy |
167 | | |
168 | | #define AVCond pthread_cond_t |
169 | | |
170 | | #define ff_cond_init pthread_cond_init |
171 | | #define ff_cond_destroy pthread_cond_destroy |
172 | | #define ff_cond_signal pthread_cond_signal |
173 | 0 | #define ff_cond_broadcast pthread_cond_broadcast |
174 | 0 | #define ff_cond_wait pthread_cond_wait |
175 | | #define ff_cond_timedwait pthread_cond_timedwait |
176 | | |
177 | | #define AVOnce pthread_once_t |
178 | 0 | #define AV_ONCE_INIT PTHREAD_ONCE_INIT |
179 | | |
180 | 0 | #define ff_thread_once(control, routine) pthread_once(control, routine) |
181 | | |
182 | | #else |
183 | | |
184 | | #define AVMutex char |
185 | | #define AV_MUTEX_INITIALIZER 0 |
186 | | |
187 | | static inline int ff_mutex_init(AVMutex *mutex, const void *attr){ return 0; } |
188 | | static inline int ff_mutex_lock(AVMutex *mutex){ return 0; } |
189 | | static inline int ff_mutex_unlock(AVMutex *mutex){ return 0; } |
190 | | static inline int ff_mutex_destroy(AVMutex *mutex){ return 0; } |
191 | | |
192 | | #define AVCond char |
193 | | |
194 | | static inline int ff_cond_init(AVCond *cond, const void *attr){ return 0; } |
195 | | static inline int ff_cond_destroy(AVCond *cond){ return 0; } |
196 | | static inline int ff_cond_signal(AVCond *cond){ return 0; } |
197 | | static inline int ff_cond_broadcast(AVCond *cond){ return 0; } |
198 | | static inline int ff_cond_wait(AVCond *cond, AVMutex *mutex){ return 0; } |
199 | | static inline int ff_cond_timedwait(AVCond *cond, AVMutex *mutex, |
200 | | const void *abstime){ return 0; } |
201 | | |
202 | | #define AVOnce char |
203 | | #define AV_ONCE_INIT 0 |
204 | | |
205 | | static inline int ff_thread_once(char *control, void (*routine)(void)) |
206 | | { |
207 | | if (!*control) { |
208 | | routine(); |
209 | | *control = 1; |
210 | | } |
211 | | return 0; |
212 | | } |
213 | | |
214 | | #endif |
215 | | |
216 | | static inline int ff_thread_setname(const char *name) |
217 | 0 | { |
218 | 0 | int ret = 0; |
219 | |
|
220 | 0 | #if HAVE_PRCTL |
221 | 0 | ret = AVERROR(prctl(PR_SET_NAME, name)); |
222 | | #elif HAVE_PTHREAD_SETNAME_NP |
223 | | #if defined(__APPLE__) |
224 | | ret = AVERROR(pthread_setname_np(name)); |
225 | | #elif defined(__NetBSD__) |
226 | | ret = AVERROR(pthread_setname_np(pthread_self(), "%s", name)); |
227 | | #else |
228 | | ret = AVERROR(pthread_setname_np(pthread_self(), name)); |
229 | | #endif |
230 | | #elif HAVE_PTHREAD_SET_NAME_NP |
231 | | pthread_set_name_np(pthread_self(), name); |
232 | | #elif HAVE_W32THREADS |
233 | | ret = win32_thread_setname(name); |
234 | | #else |
235 | | ret = AVERROR(ENOSYS); |
236 | | #endif |
237 | |
|
238 | 0 | return ret; |
239 | 0 | } Unexecuted instantiation: utils.c:ff_thread_setname Unexecuted instantiation: allcodecs.c:ff_thread_setname Unexecuted instantiation: avcodec.c:ff_thread_setname Unexecuted instantiation: decode.c:ff_thread_setname Unexecuted instantiation: pthread.c:ff_thread_setname Unexecuted instantiation: pthread_frame.c:ff_thread_setname Unexecuted instantiation: threadprogress.c:ff_thread_setname Unexecuted instantiation: buffer.c:ff_thread_setname Unexecuted instantiation: crc.c:ff_thread_setname Unexecuted instantiation: log.c:ff_thread_setname Unexecuted instantiation: refstruct.c:ff_thread_setname Unexecuted instantiation: slicethread.c:ff_thread_setname |
240 | | |
241 | | #endif /* AVUTIL_THREAD_H */ |