86 строки
2.5 KiB
C
86 строки
2.5 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 (c) 2007-2013 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "opal_config.h"
|
|
|
|
#include "opal/threads/mutex.h"
|
|
|
|
/*
|
|
* If we have progress threads, always default to using threads.
|
|
* Otherwise, wait and see if some upper layer wants to use threads.
|
|
*/
|
|
bool opal_uses_threads = false;
|
|
bool opal_mutex_check_locks = false;
|
|
|
|
|
|
static void opal_mutex_construct(opal_mutex_t *m)
|
|
{
|
|
#if OPAL_HAVE_POSIX_THREADS
|
|
|
|
#if OPAL_ENABLE_DEBUG
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
|
|
/* set type to ERRORCHECK so that we catch recursive locks */
|
|
#if OMPI_HAVE_PTHREAD_MUTEX_ERRORCHECK_NP
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK_NP);
|
|
#elif OMPI_HAVE_PTHREAD_MUTEX_ERRORCHECK
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
|
|
#endif /* OMPI_HAVE_PTHREAD_MUTEX_ERRORCHECK_NP */
|
|
|
|
pthread_mutex_init(&m->m_lock_pthread, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
|
|
#else
|
|
|
|
/* Without debugging, choose the fastest available mutexes */
|
|
pthread_mutex_init(&m->m_lock_pthread, NULL);
|
|
|
|
#endif /* OPAL_ENABLE_DEBUG */
|
|
|
|
#elif OPAL_HAVE_SOLARIS_THREADS
|
|
mutex_init(&m->m_lock_solaris, USYNC_THREAD, NULL);
|
|
#endif
|
|
|
|
#if OPAL_ENABLE_DEBUG && !OPAL_ENABLE_MULTI_THREADS
|
|
m->m_lock_debug = 0;
|
|
m->m_lock_file = NULL;
|
|
m->m_lock_line = 0;
|
|
#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 OPAL_HAVE_POSIX_THREADS
|
|
pthread_mutex_destroy(&m->m_lock_pthread);
|
|
#elif OPAL_HAVE_SOLARIS_THREADS
|
|
mutex_destroy(&m->m_lock_solaris);
|
|
#endif
|
|
}
|
|
|
|
OBJ_CLASS_INSTANCE(opal_mutex_t,
|
|
opal_object_t,
|
|
opal_mutex_construct,
|
|
opal_mutex_destruct);
|