1
1
openmpi/opal/threads/mutex.c
Brian Barrett 566a050c23 Next step in the project split, mainly source code re-arranging
- move files out of toplevel include/ and etc/, moving it into the
    sub-projects
  - rather than including config headers with <project>/include, 
    have them as <project>
  - require all headers to be included with a project prefix, with
    the exception of the config headers ({opal,orte,ompi}_config.h
    mpi.h, and mpif.h)

This commit was SVN r8985.
2006-02-12 01:33:29 +00:00

84 строки
2.2 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/threads/mutex.h"
/*
* Default to a safe value
*/
bool opal_uses_threads = (bool) OMPI_HAVE_THREAD_SUPPORT;
#ifdef __WINDOWS__
#include <windows.h>
static void opal_mutex_construct(opal_mutex_t *m)
{
InterlockedExchange(&m->m_lock, 0);
}
static void opal_mutex_destruct(opal_mutex_t *m)
{
}
#else
static void opal_mutex_construct(opal_mutex_t *m)
{
#if OMPI_HAVE_POSIX_THREADS
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
#if OMPI_ENABLE_DEBUG && OMPI_HAVE_PTHREAD_MUTEX_ERRORCHECK_NP
/* set type to ERRORCHECK so that we catch recursive locks */
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK_NP);
#elif OMPI_ENABLE_DEBUG && OMPI_HAVE_PTHREAD_MUTEX_ERRORCHECK
/* set type to ERRORCHECK so that we catch recursive locks */
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
#endif
pthread_mutex_init(&m->m_lock_pthread, &attr);
pthread_mutexattr_destroy(&attr);
#endif /* OMPI_HAVE_POSIX_THREADS */
#if OMPI_HAVE_SOLARIS_THREADS
mutex_init(&m->m_lock_solaris, USYNC_THREAD, NULL);
#endif
#if OPAL_HAVE_ATOMIC_SPINLOCKS
opal_atomic_init( &m->m_lock_atomic, OPAL_ATOMIC_UNLOCKED );
#endif
}
static void opal_mutex_destruct(opal_mutex_t *m)
{
#if OMPI_HAVE_POSIX_THREADS
pthread_mutex_destroy(&m->m_lock_pthread);
#endif
}
#endif
OBJ_CLASS_INSTANCE(opal_mutex_t,
opal_object_t,
opal_mutex_construct,
opal_mutex_destruct);