D-Modem/pjproject-2.11.1/pjlib/include/pj++/lock.hpp
2021-10-29 14:41:03 -04:00

149 lines
3.4 KiB
C++

/* $Id$ */
/*
* Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJPP_LOCK_HPP__
#define __PJPP_LOCK_HPP__
#include <pj++/types.hpp>
#include <pj/lock.h>
#include <pj++/pool.hpp>
//////////////////////////////////////////////////////////////////////////////
// Lock object.
//
class Pj_Lock : public Pj_Object
{
public:
//
// Constructor.
//
explicit Pj_Lock(pj_lock_t *lock)
: lock_(lock)
{
}
//
// Destructor.
//
~Pj_Lock()
{
if (lock_)
pj_lock_destroy(lock_);
}
//
// Get pjlib compatible lock object.
//
pj_lock_t *pj_lock_t_()
{
return lock_;
}
//
// acquire lock.
//
pj_status_t acquire()
{
return pj_lock_acquire(lock_);
}
//
// release lock,.
//
pj_status_t release()
{
return pj_lock_release(lock_);
}
protected:
pj_lock_t *lock_;
};
//////////////////////////////////////////////////////////////////////////////
// Null lock object.
//
class Pj_Null_Lock : public Pj_Lock
{
public:
//
// Default constructor.
//
explicit Pj_Null_Lock(Pj_Pool *pool, const char *name = NULL)
: Pj_Lock(NULL)
{
pj_lock_create_null_mutex(pool->pool_(), name, &lock_);
}
};
//////////////////////////////////////////////////////////////////////////////
// Simple mutex lock object.
//
class Pj_Simple_Mutex_Lock : public Pj_Lock
{
public:
//
// Default constructor.
//
explicit Pj_Simple_Mutex_Lock(Pj_Pool *pool, const char *name = NULL)
: Pj_Lock(NULL)
{
pj_lock_create_simple_mutex(pool->pool_(), name, &lock_);
}
};
//////////////////////////////////////////////////////////////////////////////
// Recursive mutex lock object.
//
class Pj_Recursive_Mutex_Lock : public Pj_Lock
{
public:
//
// Default constructor.
//
explicit Pj_Recursive_Mutex_Lock(Pj_Pool *pool, const char *name = NULL)
: Pj_Lock(NULL)
{
pj_lock_create_recursive_mutex(pool->pool_(), name, &lock_);
}
};
//////////////////////////////////////////////////////////////////////////////
// Semaphore lock object.
//
class Pj_Semaphore_Lock : public Pj_Lock
{
public:
//
// Default constructor.
//
explicit Pj_Semaphore_Lock(Pj_Pool *pool,
unsigned max=PJ_MAXINT32,
unsigned initial=0,
const char *name=NULL)
: Pj_Lock(NULL)
{
pj_lock_create_semaphore(pool->pool_(), name, initial, max, &lock_);
}
};
#endif /* __PJPP_LOCK_HPP__ */