/* Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.
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/* Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.
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This file is part of the GNU OpenMP Library (libgomp).
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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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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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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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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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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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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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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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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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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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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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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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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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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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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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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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/* This is the POSIX95 implementation of the public OpenMP locking primitives.
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/* This is the POSIX95 implementation of the public OpenMP locking primitives.
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Because OpenMP uses different entry points for normal and recursive
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Because OpenMP uses different entry points for normal and recursive
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locks, and pthreads uses only one entry point, a system may be able
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locks, and pthreads uses only one entry point, a system may be able
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to do better and streamline the locking as well as reduce the size
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to do better and streamline the locking as well as reduce the size
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of the types exported. */
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of the types exported. */
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#include "libgomp.h"
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#include "libgomp.h"
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#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
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#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
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void
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void
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gomp_init_lock_30 (omp_lock_t *lock)
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gomp_init_lock_30 (omp_lock_t *lock)
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{
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{
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pthread_mutex_init (lock, NULL);
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pthread_mutex_init (lock, NULL);
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}
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}
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void
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void
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gomp_destroy_lock_30 (omp_lock_t *lock)
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gomp_destroy_lock_30 (omp_lock_t *lock)
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{
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{
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pthread_mutex_destroy (lock);
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pthread_mutex_destroy (lock);
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}
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}
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void
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void
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gomp_set_lock_30 (omp_lock_t *lock)
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gomp_set_lock_30 (omp_lock_t *lock)
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{
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{
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pthread_mutex_lock (lock);
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pthread_mutex_lock (lock);
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}
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}
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void
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void
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gomp_unset_lock_30 (omp_lock_t *lock)
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gomp_unset_lock_30 (omp_lock_t *lock)
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{
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{
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pthread_mutex_unlock (lock);
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pthread_mutex_unlock (lock);
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}
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}
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int
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int
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gomp_test_lock_30 (omp_lock_t *lock)
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gomp_test_lock_30 (omp_lock_t *lock)
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{
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{
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return pthread_mutex_trylock (lock) == 0;
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return pthread_mutex_trylock (lock) == 0;
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}
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}
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void
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void
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gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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pthread_mutex_init (&lock->lock, NULL);
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pthread_mutex_init (&lock->lock, NULL);
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lock->owner = NULL;
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lock->owner = NULL;
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lock->count = 0;
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lock->count = 0;
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}
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}
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void
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void
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gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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pthread_mutex_destroy (&lock->lock);
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pthread_mutex_destroy (&lock->lock);
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}
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}
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void
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void
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gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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void *me = gomp_icv (true);
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void *me = gomp_icv (true);
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if (lock->owner != me)
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if (lock->owner != me)
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{
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{
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pthread_mutex_lock (&lock->lock);
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pthread_mutex_lock (&lock->lock);
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lock->owner = me;
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lock->owner = me;
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}
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}
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lock->count++;
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lock->count++;
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}
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}
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void
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void
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gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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lock->count--;
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lock->count--;
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if (lock->count == 0)
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if (lock->count == 0)
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{
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{
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lock->owner = NULL;
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lock->owner = NULL;
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pthread_mutex_unlock (&lock->lock);
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pthread_mutex_unlock (&lock->lock);
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}
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}
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}
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}
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int
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int
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gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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void *me = gomp_icv (true);
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void *me = gomp_icv (true);
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if (lock->owner != me)
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if (lock->owner != me)
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{
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{
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if (pthread_mutex_trylock (&lock->lock) != 0)
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if (pthread_mutex_trylock (&lock->lock) != 0)
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return 0;
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return 0;
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lock->owner = me;
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lock->owner = me;
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}
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}
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return ++lock->count;
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return ++lock->count;
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}
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}
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#else
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#else
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void
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void
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gomp_init_lock_30 (omp_lock_t *lock)
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gomp_init_lock_30 (omp_lock_t *lock)
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{
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{
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sem_init (lock, 0, 1);
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sem_init (lock, 0, 1);
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}
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}
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void
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void
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gomp_destroy_lock_30 (omp_lock_t *lock)
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gomp_destroy_lock_30 (omp_lock_t *lock)
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{
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{
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sem_destroy (lock);
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sem_destroy (lock);
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}
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}
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void
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void
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gomp_set_lock_30 (omp_lock_t *lock)
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gomp_set_lock_30 (omp_lock_t *lock)
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{
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{
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while (sem_wait (lock) != 0)
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while (sem_wait (lock) != 0)
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;
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;
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}
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}
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void
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void
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gomp_unset_lock_30 (omp_lock_t *lock)
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gomp_unset_lock_30 (omp_lock_t *lock)
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{
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{
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sem_post (lock);
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sem_post (lock);
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}
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}
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int
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int
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gomp_test_lock_30 (omp_lock_t *lock)
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gomp_test_lock_30 (omp_lock_t *lock)
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{
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{
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return sem_trywait (lock) == 0;
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return sem_trywait (lock) == 0;
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}
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}
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void
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void
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gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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sem_init (&lock->lock, 0, 1);
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sem_init (&lock->lock, 0, 1);
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lock->count = 0;
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lock->count = 0;
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lock->owner = NULL;
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lock->owner = NULL;
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}
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}
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void
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void
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gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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sem_destroy (&lock->lock);
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sem_destroy (&lock->lock);
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}
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}
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void
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void
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gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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void *me = gomp_icv (true);
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void *me = gomp_icv (true);
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if (lock->owner != me)
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if (lock->owner != me)
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{
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{
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while (sem_wait (&lock->lock) != 0)
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while (sem_wait (&lock->lock) != 0)
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;
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;
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lock->owner = me;
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lock->owner = me;
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}
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}
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lock->count++;
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lock->count++;
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}
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}
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void
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void
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gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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if (--lock->count == 0)
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if (--lock->count == 0)
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{
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{
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lock->owner = NULL;
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lock->owner = NULL;
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sem_post (&lock->lock);
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sem_post (&lock->lock);
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}
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}
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}
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}
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int
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int
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gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
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gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
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{
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{
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void *me = gomp_icv (true);
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void *me = gomp_icv (true);
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if (lock->owner != me)
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if (lock->owner != me)
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{
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{
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if (sem_trywait (&lock->lock) != 0)
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if (sem_trywait (&lock->lock) != 0)
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return 0;
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return 0;
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lock->owner = me;
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lock->owner = me;
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}
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}
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return ++lock->count;
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return ++lock->count;
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}
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}
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#endif
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#endif
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#ifdef LIBGOMP_GNU_SYMBOL_VERSIONING
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#ifdef LIBGOMP_GNU_SYMBOL_VERSIONING
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void
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void
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gomp_init_lock_25 (omp_lock_25_t *lock)
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gomp_init_lock_25 (omp_lock_25_t *lock)
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{
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{
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pthread_mutex_init (lock, NULL);
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pthread_mutex_init (lock, NULL);
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}
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}
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void
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void
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gomp_destroy_lock_25 (omp_lock_25_t *lock)
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gomp_destroy_lock_25 (omp_lock_25_t *lock)
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{
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{
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pthread_mutex_destroy (lock);
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pthread_mutex_destroy (lock);
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}
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}
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void
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void
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gomp_set_lock_25 (omp_lock_25_t *lock)
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gomp_set_lock_25 (omp_lock_25_t *lock)
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{
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{
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pthread_mutex_lock (lock);
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pthread_mutex_lock (lock);
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}
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}
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void
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void
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gomp_unset_lock_25 (omp_lock_25_t *lock)
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gomp_unset_lock_25 (omp_lock_25_t *lock)
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{
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{
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pthread_mutex_unlock (lock);
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pthread_mutex_unlock (lock);
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}
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}
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int
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int
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gomp_test_lock_25 (omp_lock_25_t *lock)
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gomp_test_lock_25 (omp_lock_25_t *lock)
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{
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{
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return pthread_mutex_trylock (lock) == 0;
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return pthread_mutex_trylock (lock) == 0;
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}
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}
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void
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void
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gomp_init_nest_lock_25 (omp_nest_lock_25_t *lock)
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gomp_init_nest_lock_25 (omp_nest_lock_25_t *lock)
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{
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{
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pthread_mutex_init (&lock->lock, NULL);
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pthread_mutex_init (&lock->lock, NULL);
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lock->owner = (pthread_t) 0;
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lock->owner = (pthread_t) 0;
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lock->count = 0;
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lock->count = 0;
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}
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}
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void
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void
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gomp_destroy_nest_lock_25 (omp_nest_lock_25_t *lock)
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gomp_destroy_nest_lock_25 (omp_nest_lock_25_t *lock)
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{
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{
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pthread_mutex_destroy (&lock->lock);
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pthread_mutex_destroy (&lock->lock);
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}
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}
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void
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void
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gomp_set_nest_lock_25 (omp_nest_lock_25_t *lock)
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gomp_set_nest_lock_25 (omp_nest_lock_25_t *lock)
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{
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{
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pthread_t me = pthread_self ();
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pthread_t me = pthread_self ();
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if (lock->owner != me)
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if (lock->owner != me)
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{
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{
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pthread_mutex_lock (&lock->lock);
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pthread_mutex_lock (&lock->lock);
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lock->owner = me;
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lock->owner = me;
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}
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}
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lock->count++;
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lock->count++;
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}
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}
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void
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void
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gomp_unset_nest_lock_25 (omp_nest_lock_25_t *lock)
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gomp_unset_nest_lock_25 (omp_nest_lock_25_t *lock)
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{
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{
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lock->count--;
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lock->count--;
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if (lock->count == 0)
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if (lock->count == 0)
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{
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{
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lock->owner = (pthread_t) 0;
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lock->owner = (pthread_t) 0;
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pthread_mutex_unlock (&lock->lock);
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pthread_mutex_unlock (&lock->lock);
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}
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}
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}
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}
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int
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int
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gomp_test_nest_lock_25 (omp_nest_lock_25_t *lock)
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gomp_test_nest_lock_25 (omp_nest_lock_25_t *lock)
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{
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{
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pthread_t me = pthread_self ();
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pthread_t me = pthread_self ();
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if (lock->owner != me)
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if (lock->owner != me)
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{
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{
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if (pthread_mutex_trylock (&lock->lock) != 0)
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if (pthread_mutex_trylock (&lock->lock) != 0)
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return 0;
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return 0;
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lock->owner = me;
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lock->owner = me;
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}
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}
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return ++lock->count;
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return ++lock->count;
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}
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}
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omp_lock_symver (omp_init_lock)
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omp_lock_symver (omp_init_lock)
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omp_lock_symver (omp_destroy_lock)
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omp_lock_symver (omp_destroy_lock)
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omp_lock_symver (omp_set_lock)
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omp_lock_symver (omp_set_lock)
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omp_lock_symver (omp_unset_lock)
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omp_lock_symver (omp_unset_lock)
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omp_lock_symver (omp_test_lock)
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omp_lock_symver (omp_test_lock)
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omp_lock_symver (omp_init_nest_lock)
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omp_lock_symver (omp_init_nest_lock)
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omp_lock_symver (omp_destroy_nest_lock)
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omp_lock_symver (omp_destroy_nest_lock)
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omp_lock_symver (omp_set_nest_lock)
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omp_lock_symver (omp_set_nest_lock)
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omp_lock_symver (omp_unset_nest_lock)
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omp_lock_symver (omp_unset_nest_lock)
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omp_lock_symver (omp_test_nest_lock)
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omp_lock_symver (omp_test_nest_lock)
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#else
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#else
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ialias (omp_init_lock)
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ialias (omp_init_lock)
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ialias (omp_init_nest_lock)
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ialias (omp_init_nest_lock)
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ialias (omp_destroy_lock)
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ialias (omp_destroy_lock)
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ialias (omp_destroy_nest_lock)
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ialias (omp_destroy_nest_lock)
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ialias (omp_set_lock)
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ialias (omp_set_lock)
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ialias (omp_set_nest_lock)
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ialias (omp_set_nest_lock)
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ialias (omp_unset_lock)
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ialias (omp_unset_lock)
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ialias (omp_unset_nest_lock)
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ialias (omp_unset_nest_lock)
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ialias (omp_test_lock)
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ialias (omp_test_lock)
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ialias (omp_test_nest_lock)
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ialias (omp_test_nest_lock)
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#endif
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#endif
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