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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [libgomp/] [config/] [posix/] [sem.h] - Rev 273
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/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc. Contributed by Richard Henderson <rth@redhat.com>. This file is part of the GNU OpenMP Library (libgomp). Libgomp is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. Libgomp 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 General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ /* This is the default POSIX 1003.1b implementation of a semaphore synchronization mechanism for libgomp. This type is private to the library. This is a bit heavy weight for what we need, in that we're not interested in sem_wait as a cancelation point, but it's not too bad for a default. */ #ifndef GOMP_SEM_H #define GOMP_SEM_H 1 #ifdef HAVE_ATTRIBUTE_VISIBILITY # pragma GCC visibility push(default) #endif #include <semaphore.h> #ifdef HAVE_ATTRIBUTE_VISIBILITY # pragma GCC visibility pop #endif #ifdef HAVE_BROKEN_POSIX_SEMAPHORES #include <pthread.h> struct gomp_sem { pthread_mutex_t mutex; pthread_cond_t cond; int value; }; typedef struct gomp_sem gomp_sem_t; extern void gomp_sem_init (gomp_sem_t *sem, int value); extern void gomp_sem_wait (gomp_sem_t *sem); extern void gomp_sem_post (gomp_sem_t *sem); extern void gomp_sem_destroy (gomp_sem_t *sem); #else /* HAVE_BROKEN_POSIX_SEMAPHORES */ typedef sem_t gomp_sem_t; static inline void gomp_sem_init (gomp_sem_t *sem, int value) { sem_init (sem, 0, value); } extern void gomp_sem_wait (gomp_sem_t *sem); static inline void gomp_sem_post (gomp_sem_t *sem) { sem_post (sem); } static inline void gomp_sem_destroy (gomp_sem_t *sem) { sem_destroy (sem); } #endif /* doesn't HAVE_BROKEN_POSIX_SEMAPHORES */ #endif /* GOMP_SEM_H */
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