mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-15 22:30:55 +08:00
d349482e96
2006-02-25 Shantonu Sen <ssen@opendarwin.org> * config/posix/sem.h: Define BROKEN_POSIX_SEMAPHORES functions. * config/posix/sem.c: Implement the above. 2006-02-25 Andreas Tobler <a.tobler@schweiz.ch> * configure.ac (HAVE_BROKEN_POSIX_SEMAPHORES): Check for darwin and define HAVE_BROKEN_POSIX_SEMAPHORES. * configure: Rebuilt. * config.h.in: Rebuilt. From-SVN: r111441
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* Copyright (C) 2005, 2006 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 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.
|
|
|
|
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 Lesser General Public License for
|
|
more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with libgomp; see the file COPYING.LIB. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/* As a special exception, if you link this library with other files, some
|
|
of which are compiled with GCC, to produce an executable, this library
|
|
does not by itself cause the resulting executable to be covered by the
|
|
GNU General Public License. This exception does not however invalidate
|
|
any other reasons why the executable file might be covered by the GNU
|
|
General Public License. */
|
|
|
|
/* 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 */
|