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Diffstat (limited to 'Source/DirectFB/lib/voodoo/mutex.c')
-rwxr-xr-x | Source/DirectFB/lib/voodoo/mutex.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/Source/DirectFB/lib/voodoo/mutex.c b/Source/DirectFB/lib/voodoo/mutex.c new file mode 100755 index 0000000..dcc287d --- /dev/null +++ b/Source/DirectFB/lib/voodoo/mutex.c @@ -0,0 +1,105 @@ +/* + (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; +} + |