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/*
* Copyright (c) 2005, Eric Crahen
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __ZTREADWRITELOCK_H__
#define __ZTREADWRITELOCK_H__
#include "zthread/Lockable.h"
#include "zthread/NonCopyable.h"
namespace ZThread {
/**
* @class ReadWriteLock
*
* @author Eric Crahen <http://www.code-foo.com>
* @date <2003-07-16T10:17:31-0400>
* @version 2.2.7
*
* A ReadWriteLock provides a set of coordinated Lockable objects that can be used to
* guard an object; One for read-only access, and another for read-write access.
*
* @see BiasedReadWriteLock
* @see FairReadWriteLock
*/
class ReadWriteLock : public NonCopyable {
public:
/**
* Create a ReadWriteLock
*
* @exception Initialization_Exception thrown if resources could not be
* allocated for this object.
*/
ReadWriteLock() {}
//! Destroy this ReadWriteLock
virtual ~ReadWriteLock() {}
/**
* Get a reference to the read-only Lockable.
*
* @return <em>Lockable&</em> reference to a Lockable that provides read-only
* access.
*/
virtual Lockable& getReadLock() = 0;
/**
* Get a reference to the read-write Lockable.
*
* @return <em>Lockable&</em> reference to a Lockable that provides read-write
* access.
*/
virtual Lockable& getWriteLock() = 0;
}; /* ReadWriteLock */
}; // __ZTREADWRITELOCK_H__
#endif
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