67 строки
1.6 KiB
C
67 строки
1.6 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "opal/threads/mutex.h"
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/*
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* Default to a safe value
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*/
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bool opal_uses_threads = (bool) OMPI_HAVE_THREAD_SUPPORT;
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#ifdef __WINDOWS__
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#include <windows.h>
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static void opal_mutex_construct(opal_mutex_t *m)
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{
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InterlockedExchange(&m->m_lock, 0);
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}
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static void opal_mutex_destruct(opal_mutex_t *m)
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{
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}
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#else
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static void opal_mutex_construct(opal_mutex_t *m)
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{
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#if OMPI_HAVE_POSIX_THREADS
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pthread_mutex_init(&m->m_lock_pthread, 0);
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#endif
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#if OPAL_HAVE_ATOMIC_SPINLOCKS
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opal_atomic_init( &m->m_lock_atomic, OPAL_ATOMIC_UNLOCKED );
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#endif
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}
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static void opal_mutex_destruct(opal_mutex_t *m)
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{
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#if OMPI_HAVE_POSIX_THREADS
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pthread_mutex_destroy(&m->m_lock_pthread);
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#endif
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}
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#endif
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OBJ_CLASS_INSTANCE(opal_mutex_t,
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opal_object_t,
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opal_mutex_construct,
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opal_mutex_destruct);
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