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/*
* $Id$ *
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of opensips, a free SIP server.
*
* opensips 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
*
* opensips 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* History:
* -------
* 2002-12-16 created by andrei
* 2003-02-20 s/gen_lock_t/gen_lock_t/ to avoid a type conflict
* on solaris (andrei)
* 2003-03-05 lock set support added for FAST_LOCK & SYSV (andrei)
* 2003-03-06 split in two: lock_ops.h & lock_alloc.h, to avoid
* shm_mem.h<->locking.h interdependency (andrei)
* 2004-07-28 s/lock_set_t/gen_lock_set_t/ because of a type conflict
* on darwin (andrei)
*/
/*!
* \file
* \brief OpenSIPS locking library
*
* Implements (in lock_ops.h & lock_alloc.h):
*
* simple locks:
* - type: gen_lock_t
* - gen_lock_t* lock_alloc(); - allocates a lock in shared mem.
* - gen_lock_t* lock_init(gen_lock_t* lock); - inits the lock
* - void lock_destroy(gen_lock_t* lock); - removes the lock (e.g sysv rmid)
* - void lock_dealloc(gen_lock_t* lock); - deallocates the lock's shared m.
* - void lock_get(gen_lock_t* lock); - lock (mutex down)
* - void lock_release(gen_lock_t* lock); - unlock (mutex up)
*
* lock sets:
* - type: gen_lock_set_t
* - gen_lock_set_t* lock_set_alloc(no) - allocs a lock set in shm.
* - gen_lock_set_t* lock_set_init(gen_lock_set_t* set); - inits the lock set
* - void lock_set_destroy(gen_lock_set_t* s); - removes the lock set
* - void lock_set_dealloc(gen_lock_set_t* s); - deallocs the lock set shm.
* - void lock_set_get(gen_lock_set_t* s, int i); - locks sem i from the set
* - void lock_set_release(gen_lock_set_t* s, int i)- unlocks sem i from the set
*
* WARNING:
* - lock_set_init may fail for large number of sems (e.g. sysv).
* - signals are not treated! (some locks are "awakened" by the signals)
*/
#ifndef _locking_h
#define _locking_h
/* the order is important */
#include "lock_ops.h"
#include "lock_alloc.h"
#endif
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