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