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223 lines
7.1 KiB
223 lines
7.1 KiB
/* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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// This header should only be used to simplify code where |
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// threading is optional, not as a generic threading abstraction. |
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#ifndef AVUTIL_THREAD_H |
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#define AVUTIL_THREAD_H |
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#include "config.h" |
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#if HAVE_PRCTL |
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#include <sys/prctl.h> |
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#endif |
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#include "error.h" |
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#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS |
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#if HAVE_PTHREADS |
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#include <pthread.h> |
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#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1 |
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#include <stdlib.h> |
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#include "log.h" |
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#include "macros.h" |
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#define ASSERT_PTHREAD_ABORT(func, ret) do { \ |
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char errbuf[AV_ERROR_MAX_STRING_SIZE] = ""; \ |
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av_log(NULL, AV_LOG_FATAL, AV_STRINGIFY(func) \ |
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" failed with error: %s\n", \ |
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av_make_error_string(errbuf, AV_ERROR_MAX_STRING_SIZE, \ |
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AVERROR(ret))); \ |
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abort(); \ |
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} while (0) |
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#define ASSERT_PTHREAD_NORET(func, ...) do { \ |
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int ret = func(__VA_ARGS__); \ |
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if (ret) \ |
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ASSERT_PTHREAD_ABORT(func, ret); \ |
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} while (0) |
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#define ASSERT_PTHREAD(func, ...) do { \ |
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ASSERT_PTHREAD_NORET(func, __VA_ARGS__); \ |
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return 0; \ |
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} while (0) |
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static inline int strict_pthread_join(pthread_t thread, void **value_ptr) |
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{ |
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ASSERT_PTHREAD(pthread_join, thread, value_ptr); |
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} |
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static inline int strict_pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr) |
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{ |
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if (attr) { |
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ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, attr); |
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} else { |
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pthread_mutexattr_t local_attr; |
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ASSERT_PTHREAD_NORET(pthread_mutexattr_init, &local_attr); |
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ASSERT_PTHREAD_NORET(pthread_mutexattr_settype, &local_attr, PTHREAD_MUTEX_ERRORCHECK); |
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ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, &local_attr); |
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ASSERT_PTHREAD_NORET(pthread_mutexattr_destroy, &local_attr); |
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} |
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return 0; |
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} |
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static inline int strict_pthread_mutex_destroy(pthread_mutex_t *mutex) |
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{ |
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ASSERT_PTHREAD(pthread_mutex_destroy, mutex); |
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} |
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static inline int strict_pthread_mutex_lock(pthread_mutex_t *mutex) |
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{ |
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ASSERT_PTHREAD(pthread_mutex_lock, mutex); |
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} |
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static inline int strict_pthread_mutex_unlock(pthread_mutex_t *mutex) |
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{ |
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ASSERT_PTHREAD(pthread_mutex_unlock, mutex); |
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} |
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static inline int strict_pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr) |
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{ |
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ASSERT_PTHREAD(pthread_cond_init, cond, attr); |
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} |
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static inline int strict_pthread_cond_destroy(pthread_cond_t *cond) |
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{ |
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ASSERT_PTHREAD(pthread_cond_destroy, cond); |
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} |
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static inline int strict_pthread_cond_signal(pthread_cond_t *cond) |
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{ |
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ASSERT_PTHREAD(pthread_cond_signal, cond); |
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} |
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static inline int strict_pthread_cond_broadcast(pthread_cond_t *cond) |
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{ |
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ASSERT_PTHREAD(pthread_cond_broadcast, cond); |
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} |
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static inline int strict_pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) |
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{ |
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ASSERT_PTHREAD(pthread_cond_wait, cond, mutex); |
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} |
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static inline int strict_pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, |
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const struct timespec *abstime) |
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{ |
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int ret = pthread_cond_timedwait(cond, mutex, abstime); |
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if (ret && ret != ETIMEDOUT) |
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ASSERT_PTHREAD_ABORT(pthread_cond_timedwait, ret); |
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return ret; |
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} |
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static inline int strict_pthread_once(pthread_once_t *once_control, void (*init_routine)(void)) |
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{ |
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ASSERT_PTHREAD(pthread_once, once_control, init_routine); |
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} |
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#define pthread_join strict_pthread_join |
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#define pthread_mutex_init strict_pthread_mutex_init |
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#define pthread_mutex_destroy strict_pthread_mutex_destroy |
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#define pthread_mutex_lock strict_pthread_mutex_lock |
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#define pthread_mutex_unlock strict_pthread_mutex_unlock |
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#define pthread_cond_init strict_pthread_cond_init |
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#define pthread_cond_destroy strict_pthread_cond_destroy |
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#define pthread_cond_signal strict_pthread_cond_signal |
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#define pthread_cond_broadcast strict_pthread_cond_broadcast |
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#define pthread_cond_wait strict_pthread_cond_wait |
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#define pthread_cond_timedwait strict_pthread_cond_timedwait |
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#define pthread_once strict_pthread_once |
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#endif |
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#elif HAVE_OS2THREADS |
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#include "compat/os2threads.h" |
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#else |
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#include "compat/w32pthreads.h" |
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#endif |
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#define AVMutex pthread_mutex_t |
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#define AV_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER |
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#define ff_mutex_init pthread_mutex_init |
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#define ff_mutex_lock pthread_mutex_lock |
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#define ff_mutex_unlock pthread_mutex_unlock |
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#define ff_mutex_destroy pthread_mutex_destroy |
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#define AVCond pthread_cond_t |
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#define ff_cond_init pthread_cond_init |
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#define ff_cond_destroy pthread_cond_destroy |
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#define ff_cond_signal pthread_cond_signal |
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#define ff_cond_broadcast pthread_cond_broadcast |
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#define ff_cond_wait pthread_cond_wait |
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#define ff_cond_timedwait pthread_cond_timedwait |
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#define AVOnce pthread_once_t |
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#define AV_ONCE_INIT PTHREAD_ONCE_INIT |
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#define ff_thread_once(control, routine) pthread_once(control, routine) |
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#else |
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#define AVMutex char |
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#define AV_MUTEX_INITIALIZER 0 |
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static inline int ff_mutex_init(AVMutex *mutex, const void *attr){ return 0; } |
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static inline int ff_mutex_lock(AVMutex *mutex){ return 0; } |
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static inline int ff_mutex_unlock(AVMutex *mutex){ return 0; } |
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static inline int ff_mutex_destroy(AVMutex *mutex){ return 0; } |
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#define AVCond char |
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static inline int ff_cond_init(AVCond *cond, const void *attr){ return 0; } |
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static inline int ff_cond_destroy(AVCond *cond){ return 0; } |
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static inline int ff_cond_signal(AVCond *cond){ return 0; } |
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static inline int ff_cond_broadcast(AVCond *cond){ return 0; } |
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static inline int ff_cond_wait(AVCond *cond, AVMutex *mutex){ return 0; } |
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static inline int ff_cond_timedwait(AVCond *cond, AVMutex *mutex, |
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const void *abstime){ return 0; } |
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#define AVOnce char |
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#define AV_ONCE_INIT 0 |
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static inline int ff_thread_once(char *control, void (*routine)(void)) |
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{ |
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if (!*control) { |
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routine(); |
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*control = 1; |
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} |
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return 0; |
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} |
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#endif |
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static inline int ff_thread_setname(const char *name) |
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{ |
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#if HAVE_PRCTL |
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return AVERROR(prctl(PR_SET_NAME, name)); |
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#endif |
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return AVERROR(ENOSYS); |
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} |
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#endif /* AVUTIL_THREAD_H */
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