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/*
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef LOCK_H
#define LOCK_H
/*!
\file
\brief classes PxSceneReadLock, PxSceneWriteLock
*/
#include "ApexInterface.h"
namespace nvidia
{
namespace apex
{
/**
\brief RAII wrapper for the Scene read lock.
Use this class as follows to lock the scene for reading by the current thread
for the duration of the enclosing scope:
ReadLock lock(sceneRef);
\see Scene::apexacquireReadLock(), Scene::apexUnacquireReadLock(), SceneDesc::useRWLock
*/
class ReadLock
{
ReadLock(const ReadLock&);
ReadLock& operator=(const ReadLock&);
public:
/**
\brief Constructor
\param lockable The object to lock for reading
\param file Optional string for debugging purposes
\param line Optional line number for debugging purposes
*/
ReadLock(const ApexInterface& lockable, const char* file=NULL, uint32_t line=0)
: mLockable(lockable)
{
mLockable.acquireReadLock(file, line);
}
~ReadLock()
{
mLockable.releaseReadLock();
}
private:
const ApexInterface& mLockable;
};
/**
\brief RAII wrapper for the Scene write lock.
Use this class as follows to lock the scene for writing by the current thread
for the duration of the enclosing scope:
WriteLock lock(sceneRef);
\see Scene::apexacquireWriteLock(), Scene::apexUnacquireWriteLock(), SceneDesc::useRWLock
*/
class WriteLock
{
WriteLock(const WriteLock&);
WriteLock& operator=(const WriteLock&);
public:
/**
\brief Constructor
\param lockable The object to lock for writing
\param file Optional string for debugging purposes
\param line Optional line number for debugging purposes
*/
WriteLock(const ApexInterface& lockable, const char* file=NULL, uint32_t line=0)
: mLockable(lockable)
{
mLockable.acquireWriteLock(file, line);
}
~WriteLock()
{
mLockable.releaseWriteLock();
}
private:
const ApexInterface& mLockable;
};
} // namespace apex
} // namespace nvidia
/**
\brief Lock an object for writing by the current thread for the duration of the enclosing scope.
*/
#define WRITE_LOCK(LOCKABLE) nvidia::apex::WriteLock __WriteLock(LOCKABLE, __FILE__, __LINE__);
/**
\brief Lock an object for reading by the current thread for the duration of the enclosing scope.
*/
#define READ_LOCK(LOCKABLE) nvidia::apex::ReadLock __ReadLock(LOCKABLE, __FILE__, __LINE__);
/** @} */
#endif
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