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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and 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.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#include "NpWriteCheck.h"
#include "NpScene.h"
using namespace physx;
NpWriteCheck::NpWriteCheck(NpScene* scene, const char* functionName, bool allowReentry)
: mScene(scene), mName(functionName), mAllowReentry(allowReentry), mErrorCount(0)
{
if (mScene)
{
switch (mScene->startWrite(mAllowReentry))
{
case NpScene::StartWriteResult::eOK:
break;
case NpScene::StartWriteResult::eNO_LOCK:
Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
"An API write call (%s) was made from thread %d but PxScene::lockWrite() was not called first, note that "
"when PxSceneFlag::eREQUIRE_RW_LOCK is enabled all API reads and writes must be "
"wrapped in the appropriate locks.", mName, PxU32(Ps::Thread::getId()));
break;
case NpScene::StartWriteResult::eRACE_DETECTED:
Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
"Concurrent API write call or overlapping API read and write call detected during %s from thread %d! "
"Note that write operations to the SDK must be sequential, i.e., no overlap with "
"other write or read calls, else the resulting behavior is undefined. "
"Also note that API writes during a callback function are not permitted.", mName, PxU32(Ps::Thread::getId()));
break;
case NpScene::StartWriteResult::eIN_FETCHRESULTS:
Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
"Illegal write call detected in %s from thread %d during split fetchResults! "
"Note that write operations to the SDK are not permitted between the start of fetchResultsStart() and end of fetchResultsFinish(). "
"Behavior will be undefined. ", mName, PxU32(Ps::Thread::getId()));
break;
}
// Record the NpScene read/write error counter which is
// incremented any time a NpScene::startWrite/startRead fails
// (see destructor for additional error checking based on this count)
mErrorCount = mScene->getReadWriteErrorCount();
}
}
NpWriteCheck::~NpWriteCheck()
{
if (mScene)
{
// By checking if the NpScene::mConcurrentErrorCount has been incremented
// we can detect if an erroneous read/write was performed during
// this objects lifetime. In this case we also print this function's
// details so that the user can see which two API calls overlapped
if (mScene->getReadWriteErrorCount() != mErrorCount && !(mScene->getScene().getFlags() & PxSceneFlag::eREQUIRE_RW_LOCK))
{
Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
"Leaving %s on thread %d, an overlapping API read or write by another thread was detected.", mName, PxU32(Ps::Thread::getId()));
}
mScene->stopWrite(mAllowReentry);
}
}
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