| /* |
| * 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 */ |