d8f59fb722
Move the resource announce/forget into the rwlock init/destroy Move resource announcement/forget into the mutex init/destroy
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/*
|
|
rwlock.c - read/write locks
|
|
|
|
Copyright (C) Lumiera.org
|
|
2008, 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/error.h"
|
|
#include "lib/rwlock.h"
|
|
|
|
|
|
LUMIERA_ERROR_DEFINE(RWLOCK_AGAIN, "maximum number of readlocks exceed");
|
|
LUMIERA_ERROR_DEFINE(RWLOCK_DEADLOCK, "deadlock detected");
|
|
LUMIERA_ERROR_DEFINE(RWLOCK_DESTROY, "destroying rwlock");
|
|
LUMIERA_ERROR_DEFINE(RWLOCK_UNLOCK, "unlock rwlock failed");
|
|
LUMIERA_ERROR_DEFINE(RWLOCK_RDLOCK, "locking rwlock for reading failed");
|
|
LUMIERA_ERROR_DEFINE(RWLOCK_WRLOCK, "locking rwlock for writing failed");
|
|
|
|
/**
|
|
* @file
|
|
* Read/write locks.
|
|
*/
|
|
|
|
LumieraRWLock
|
|
lumiera_rwlock_init (LumieraRWLock self, const char* purpose, struct nobug_flag* flag)
|
|
{
|
|
if (self)
|
|
{
|
|
pthread_rwlock_init (&self->rwlock, NULL);
|
|
NOBUG_RESOURCE_HANDLE_INIT (self->rh);
|
|
NOBUG_RESOURCE_ANNOUNCE_RAW (flag, "rwlock", purpose, self, self->rh);
|
|
}
|
|
return self;
|
|
}
|
|
|
|
|
|
LumieraRWLock
|
|
lumiera_rwlock_destroy (LumieraRWLock self, struct nobug_flag* flag)
|
|
{
|
|
if (self)
|
|
{
|
|
NOBUG_RESOURCE_FORGET_RAW (flag, self->rh);
|
|
if (pthread_rwlock_destroy (&self->rwlock))
|
|
LUMIERA_DIE (RWLOCK_DESTROY);
|
|
}
|
|
return self;
|
|
}
|
|
|
|
/*
|
|
// Local Variables:
|
|
// mode: C
|
|
// c-file-style: "gnu"
|
|
// indent-tabs-mode: nil
|
|
// End:
|
|
*/
|