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b662140e16
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@29367 72102866-910b-0410-8b05-ffd578937521
58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
/* GSPThread.h
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Copyright (C) 2010 Free Software Foundation, Inc.
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Written by: Niels Grewe <niels.grewe@halbordnung.de>
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This file is part of the GNUstep Base Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02111 USA.
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*/
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#ifndef _GSPThread_h_
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#define _GSPThread_h_
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/*
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* Since glibc does not enable Unix98 extensions by default, we need to tell it
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* to do so explicitly. Whether that support is switched on by _XOPEN_SOURCE or
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* by __USE_UNIX98 depends on whether <features.h> has already been included or
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* will be included by pthread.h. Hence both flags need to be set here. This
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* shouldn't be be a problem with other libcs.
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*/
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#define _XOPEN_SOURCE 500
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#define __USE_UNIX98
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#include <pthread.h>
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/*
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* Macro to initialize recursive mutexes in a portable way. Adopted from
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* libobjc2 (lock.h).
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*/
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# ifdef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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# define GS_INIT_RECURSIVE_MUTEX(x) x = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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# elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
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# define GS_INIT_RECURSIVE_MUTEX(x) x = PTHREAD_RECURSIVE_MUTEX_INITIALIZER
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# else
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# define GS_INIT_RECURSIVE_MUTEX(x) GSPThreadInitRecursiveMutex(&(x))
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static inline void GSPThreadInitRecursiveMutex(pthread_mutex_t *x)
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{
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pthread_mutexattr_t recursiveAttributes;
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pthread_mutexattr_init(&recursiveAttributes);
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pthread_mutexattr_settype(&recursiveAttributes, PTHREAD_MUTEX_RECURSIVE);
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pthread_mutex_init(x, &recursiveAttributes);
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pthread_mutexattr_destroy(&recursiveAttributes);
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}
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# endif // PTHREAD_RECURSIVE_MUTEX_INITIALIZER(_NP)
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#endif // _GSPThread_h_
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