83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/*
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recmutex.c - recursive mutex
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Copyright (C) Lumiera.org
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2008, 2009, Christian Thaeter <ct@pipapo.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "lib/recmutex.h"
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/**
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* @file
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* Recursive Mutexes.
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*/
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static pthread_once_t recmutexattr_once = PTHREAD_ONCE_INIT;
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static pthread_mutexattr_t recmutexattr;
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static void recmutexattr_init()
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{
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pthread_mutexattr_init (&recmutexattr);
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pthread_mutexattr_settype (&recmutexattr, PTHREAD_MUTEX_RECURSIVE);
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}
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LumieraRecmutex
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lumiera_recmutex_init (LumieraRecmutex self,
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const char* purpose,
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struct nobug_flag* flag,
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const struct nobug_context ctx)
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{
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if (self)
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{
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pthread_once (&recmutexattr_once, recmutexattr_init);
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NOBUG_RESOURCE_HANDLE_INIT (self->rh);
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NOBUG_RESOURCE_ANNOUNCE_RAW_CTX (flag, "recmutex", purpose, self, self->rh, ctx)
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{
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pthread_mutex_init (&self->recmutex, &recmutexattr);
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}
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}
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return self;
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}
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LumieraRecmutex
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lumiera_recmutex_destroy (LumieraRecmutex self,
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struct nobug_flag* flag,
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const struct nobug_context ctx)
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{
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if (self)
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{
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NOBUG_RESOURCE_FORGET_RAW_CTX (flag, self->rh, ctx)
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{
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if (pthread_mutex_destroy (&self->recmutex))
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LUMIERA_DIE (LOCK_DESTROY);
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}
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}
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return self;
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}
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/*
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// Local Variables:
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// mode: C
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// c-file-style: "gnu"
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// indent-tabs-mode: nil
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// End:
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*/
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