84 lines
3.6 KiB
C++
84 lines
3.6 KiB
C++
//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#include "NpReadCheck.h"
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#include "NpScene.h"
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using namespace physx;
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NpReadCheck::NpReadCheck(const NpScene* scene, const char* functionName)
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: mScene(scene), mName(functionName), mErrorCount(0)
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{
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if (mScene)
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{
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if (!mScene->startRead())
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{
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if (mScene->getScene().getFlags() & PxSceneFlag::eREQUIRE_RW_LOCK)
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{
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Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
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"An API read call (%s) was made from thread %d but PxScene::lockRead() was not called first, note that "
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"when PxSceneFlag::eREQUIRE_RW_LOCK is enabled all API reads and writes must be "
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"wrapped in the appropriate locks.", mName, PxU32(Ps::Thread::getId()));
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}
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else
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{
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Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
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"Overlapping API read and write call detected during %s from thread %d! Note that read operations to "
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"the SDK must not be overlapped with write calls, else the resulting behavior is undefined.", mName, PxU32(Ps::Thread::getId()));
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}
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}
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// Record the NpScene read/write error counter which is
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// incremented any time a NpScene::startWrite/startRead fails
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// (see destructor for additional error checking based on this count)
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mErrorCount = mScene->getReadWriteErrorCount();
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}
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}
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NpReadCheck::~NpReadCheck()
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{
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if (mScene)
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{
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// By checking if the NpScene::mConcurrentErrorCount has been incremented
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// we can detect if an erroneous read/write was performed during
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// this objects lifetime. In this case we also print this function's
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// details so that the user can see which two API calls overlapped
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if (mScene->getReadWriteErrorCount() != mErrorCount && !(mScene->getScene().getFlags() & PxSceneFlag::eREQUIRE_RW_LOCK))
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{
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Ps::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
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"Leaving %s on thread %d, an API overlapping write on another thread was detected.", mName, PxU32(Ps::Thread::getId()));
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}
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mScene->stopRead();
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}
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}
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