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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgomp/] [config/] [posix/] [sem.h] - Blame information for rev 735

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1 735 jeremybenn
/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
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   Contributed by Richard Henderson <rth@redhat.com>.
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   This file is part of the GNU OpenMP Library (libgomp).
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   Libgomp is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3, or (at your option)
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   any later version.
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   Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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   more details.
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   Under Section 7 of GPL version 3, you are granted additional
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   permissions described in the GCC Runtime Library Exception, version
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   3.1, as published by the Free Software Foundation.
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   You should have received a copy of the GNU General Public License and
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   a copy of the GCC Runtime Library Exception along with this program;
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   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
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   <http://www.gnu.org/licenses/>.  */
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/* This is the default POSIX 1003.1b implementation of a semaphore
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   synchronization mechanism for libgomp.  This type is private to
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   the library.
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   This is a bit heavy weight for what we need, in that we're not
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   interested in sem_wait as a cancelation point, but it's not too
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   bad for a default.  */
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#ifndef GOMP_SEM_H
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#define GOMP_SEM_H 1
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#ifdef HAVE_ATTRIBUTE_VISIBILITY
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# pragma GCC visibility push(default)
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#endif
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#include <semaphore.h>
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#ifdef HAVE_ATTRIBUTE_VISIBILITY
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# pragma GCC visibility pop
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#endif
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#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
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#include <pthread.h>
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struct gomp_sem
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{
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  pthread_mutex_t       mutex;
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  pthread_cond_t        cond;
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  int                   value;
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};
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typedef struct gomp_sem gomp_sem_t;
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extern void gomp_sem_init (gomp_sem_t *sem, int value);
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extern void gomp_sem_wait (gomp_sem_t *sem);
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extern void gomp_sem_post (gomp_sem_t *sem);
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extern void gomp_sem_destroy (gomp_sem_t *sem);
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#else /* HAVE_BROKEN_POSIX_SEMAPHORES  */
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typedef sem_t gomp_sem_t;
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static inline void gomp_sem_init (gomp_sem_t *sem, int value)
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{
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  sem_init (sem, 0, value);
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}
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extern void gomp_sem_wait (gomp_sem_t *sem);
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static inline void gomp_sem_post (gomp_sem_t *sem)
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{
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  sem_post (sem);
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}
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static inline void gomp_sem_destroy (gomp_sem_t *sem)
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{
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  sem_destroy (sem);
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}
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#endif /* doesn't HAVE_BROKEN_POSIX_SEMAPHORES  */
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#endif /* GOMP_SEM_H  */

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