145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
// 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) 2008-2025 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 "OmniPvdFileReadStreamImpl.h"
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OmniPvdFileReadStreamImpl::OmniPvdFileReadStreamImpl()
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{
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mFileName = 0;
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resetFileParams();
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}
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OmniPvdFileReadStreamImpl::~OmniPvdFileReadStreamImpl()
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{
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closeFile();
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delete[] mFileName;
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mFileName = 0;
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}
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void OmniPvdFileReadStreamImpl::resetFileParams()
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{
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mFileOpenAttempted = false;
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mPFile = 0;
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}
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void OMNI_PVD_CALL OmniPvdFileReadStreamImpl::setFileName(const char* fileName)
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{
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if (!fileName) return;
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int n = (int)strlen(fileName) + 1;
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if (n < 2) return;
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delete[] mFileName;
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mFileName = new char[n];
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#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
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strcpy_s(mFileName, n, fileName);
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#else
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strcpy(mFileName, fileName);
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#endif
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mFileName[n - 1] = 0;
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}
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bool OMNI_PVD_CALL OmniPvdFileReadStreamImpl::openFile()
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{
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if (mFileOpenAttempted)
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{
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return (mPFile!=0);
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}
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if (!mFileName)
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{
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return false;
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}
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mPFile = 0;
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mFileOpenAttempted = true;
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#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
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errno_t err = fopen_s(&mPFile, mFileName, "rb");
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if (err != 0)
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{
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mPFile = 0;
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}
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else
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{
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fseek(mPFile, 0, SEEK_SET);
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}
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#else
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mPFile = fopen(mFileName, "rb");
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if (mPFile)
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{
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fseek(mPFile, 0, SEEK_SET);
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}
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#endif
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return (mPFile!=0);
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}
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bool OMNI_PVD_CALL OmniPvdFileReadStreamImpl::closeFile()
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{
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bool returnOK = true;
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if (mFileOpenAttempted && (mPFile!=0))
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{
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fclose(mPFile);
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mPFile = 0;
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}
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else
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{
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returnOK = false;
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}
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resetFileParams();
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return returnOK;
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}
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uint64_t OMNI_PVD_CALL OmniPvdFileReadStreamImpl::readBytes(uint8_t* bytes, uint64_t nbrBytes)
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{
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size_t result = 0;
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if (mPFile!=0)
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{
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result = fread(bytes, 1, nbrBytes, mPFile);
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}
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return result;
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}
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uint64_t OMNI_PVD_CALL OmniPvdFileReadStreamImpl::skipBytes(uint64_t nbrBytes)
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{
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if (mPFile==0)
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{
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return 0;
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}
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if (fseek(mPFile, (long)nbrBytes, SEEK_CUR)==0)
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{
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return nbrBytes;
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}
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return 0;
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}
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bool OMNI_PVD_CALL OmniPvdFileReadStreamImpl::openStream()
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{
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return openFile();
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}
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bool OMNI_PVD_CALL OmniPvdFileReadStreamImpl::closeStream()
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{
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return closeFile();
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}
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