77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
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reccondition.c - condition variable, w/ recursive mutex
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Copyright (C) Lumiera.org
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2008, 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/condition.h"
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#include "lib/reccondition.h"
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/**
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* @file
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* Condition variables
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*/
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static pthread_once_t recursive_mutexattr_once = PTHREAD_ONCE_INIT;
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static pthread_mutexattr_t recursive_mutexattr;
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static void recursive_mutexattr_init()
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{
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pthread_mutexattr_init (&recursive_mutexattr);
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pthread_mutexattr_settype (&recursive_mutexattr, PTHREAD_MUTEX_RECURSIVE);
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}
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LumieraReccondition
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lumiera_reccondition_init (LumieraReccondition self, const char* purpose, struct nobug_flag* flag)
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{
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if (self)
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{
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if (recursive_mutexattr_once == PTHREAD_ONCE_INIT)
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pthread_once (&recursive_mutexattr_once, recursive_mutexattr_init);
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pthread_cond_init (&self->cond, NULL);
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pthread_mutex_init (&self->mutex, &recursive_mutexattr);
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NOBUG_RESOURCE_HANDLE_INIT (self->rh);
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NOBUG_RESOURCE_ANNOUNCE_RAW (flag, "reccond_var", purpose, self, self->rh);
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}
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return self;
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}
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LumieraReccondition
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lumiera_reccondition_destroy (LumieraReccondition self, struct nobug_flag* flag)
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{
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if (self)
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{
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NOBUG_RESOURCE_FORGET_RAW (flag, self->rh);
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if (pthread_mutex_destroy (&self->mutex))
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LUMIERA_DIE (MUTEX_DESTROY);
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if (pthread_cond_destroy (&self->cond))
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LUMIERA_DIE (CONDITION_DESTROY);
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}
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return self;
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}
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