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compat/dispatch_semaphore/semaphore.h
42 строки
2 KB
Derek Buitenhuis
Merge commit '6bb99757b780144d9fa27cdce09d3621e1a0ed43'
09 май 2016, 01:02
09 май 2016, 01:02
dc01525
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/* * 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 */ #ifndef COMPAT_DISPATCH_SEMAPHORE_SEMAPHORE_H #define COMPAT_DISPATCH_SEMAPHORE_SEMAPHORE_H #include <dispatch/dispatch.h> #include <errno.h> #define sem_t dispatch_semaphore_t #define sem_post(psem) dispatch_semaphore_signal(*psem) #define sem_wait(psem) dispatch_semaphore_wait(*psem, DISPATCH_TIME_FOREVER) #define sem_timedwait(psem, val) dispatch_semaphore_wait(*psem, dispatch_walltime(val, 0)) #define sem_destroy(psem) dispatch_release(*psem) static inline int compat_sem_init(dispatch_semaphore_t *psem, int unused, int val) { int ret = !!(*psem = dispatch_semaphore_create(val)) - 1; if (ret < 0) errno = ENOMEM; return ret; } #define sem_init compat_sem_init #endif /* COMPAT_DISPATCH_SEMAPHORE_SEMAPHORE_H */