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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;
}
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