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Diffstat (limited to 'Source/DirectFB/lib/voodoo/mutex.c')
-rwxr-xr-xSource/DirectFB/lib/voodoo/mutex.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/Source/DirectFB/lib/voodoo/mutex.c b/Source/DirectFB/lib/voodoo/mutex.c
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+++ b/Source/DirectFB/lib/voodoo/mutex.c
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+/*
+ (c) Copyright 2001-2008 The world wide DirectFB Open Source Community (directfb.org)
+ (c) Copyright 2000-2004 Convergence (integrated media) GmbH
+
+ All rights reserved.
+
+ Written by Denis Oliver Kropp <dok@directfb.org>,
+ Andreas Hundt <andi@fischlustig.de>,
+ Sven Neumann <neo@directfb.org>,
+ Ville Syrjälä <syrjala@sci.fi> and
+ Claudio Ciccani <klan@users.sf.net>.
+
+ This library 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 of the License, or (at your option) any later version.
+
+ This library 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 this library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#include <config.h>
+
+#include <direct/util.h>
+
+#include "mutex.h"
+
+/**********************************************************************************************************************/
+
+DirectResult
+direct_mutex_init( DirectMutex *mutex )
+{
+ if (pthread_mutex_init( &mutex->lock, NULL ))
+ return errno2result( errno );
+
+ return DR_OK;
+}
+
+DirectResult
+direct_recursive_mutex_init( DirectMutex *mutex )
+{
+ DirectResult ret = DR_OK;
+ int result;
+ pthread_mutexattr_t attr;
+
+ pthread_mutexattr_init( &attr );
+#if HAVE_DECL_PTHREAD_MUTEX_RECURSIVE
+ pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_RECURSIVE );
+#endif
+ result = pthread_mutex_init( &mutex->lock, &attr );
+ if (result) {
+ ret = errno2result( errno );
+ D_PERROR( "Direct/Mutex: Could not initialize recursive mutex!\n" );
+ }
+
+ pthread_mutexattr_destroy( &attr );
+
+ return (DirectResult) ret;
+}
+
+__attribute__((no_instrument_function))
+DirectResult
+direct_mutex_lock( DirectMutex *mutex )
+{
+ if (pthread_mutex_lock( &mutex->lock ))
+ return errno2result( errno );
+
+ return DR_OK;
+}
+
+__attribute__((no_instrument_function))
+DirectResult
+direct_mutex_unlock( DirectMutex *mutex )
+{
+ if (pthread_mutex_unlock( &mutex->lock ))
+ return errno2result( errno );
+
+ return DR_OK;
+}
+
+DirectResult
+direct_mutex_trylock( DirectMutex *mutex )
+{
+ if (pthread_mutex_trylock( &mutex->lock ))
+ return errno2result( errno );
+
+ return DR_OK;
+}
+
+DirectResult
+direct_mutex_deinit( DirectMutex *mutex )
+{
+ if (pthread_mutex_destroy( &mutex->lock ))
+ return errno2result( errno );
+
+ return DR_OK;
+}
+