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