SaraP
134 lines
3.7 KiB
C++
134 lines
3.7 KiB
C++
/*++
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Copyright (C) 2019 3MF Consortium
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY 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 OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Abstract:
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NMR_ImportStream_ZIP.cpp implements the CImportStream_ZIP Class.
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This is a stream class for importing from a libZIP object.
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--*/
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#include "Common/Platform/NMR_ImportStream_ZIP.h"
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#include "Common/Platform/NMR_ImportStream_Unique_Memory.h"
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#include "Common/NMR_Exception.h"
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#include "Common/NMR_Exception_Windows.h"
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#include <math.h>
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#include <vector>
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namespace NMR {
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CImportStream_ZIP::CImportStream_ZIP(_In_ zip_file_t * pFile, _In_ nfUint64 nSize)
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{
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if (pFile == nullptr)
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throw CNMRException(NMR_ERROR_INVALIDPARAM);
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m_pFile = pFile;
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m_nSize = nSize;
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}
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CImportStream_ZIP::~CImportStream_ZIP()
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{
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if (m_pFile != nullptr) {
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zip_fclose(m_pFile);
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}
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m_pFile = nullptr;
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}
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nfBool CImportStream_ZIP::seekPosition(_In_ nfUint64 position, _In_ nfBool bHasToSucceed)
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{
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throw CNMRException(NMR_ERROR_COULDNOTSEEKINZIP);
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}
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nfBool CImportStream_ZIP::seekForward(_In_ nfUint64 bytes, _In_ nfBool bHasToSucceed)
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{
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throw CNMRException(NMR_ERROR_COULDNOTSEEKINZIP);
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}
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nfBool CImportStream_ZIP::seekFromEnd(_In_ nfUint64 bytes, _In_ nfBool bHasToSucceed)
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{
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throw CNMRException(NMR_ERROR_COULDNOTSEEKINZIP);
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}
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nfUint64 CImportStream_ZIP::getPosition() {
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throw CNMRException(NMR_ERROR_COULDNOTSEEKINZIP);
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}
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nfUint64 CImportStream_ZIP::readIntoBuffer(_In_ nfByte * pBuffer, _In_ nfUint64 cbTotalBytesToRead, nfBool bNeedsToReadAll)
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{
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nfUint64 cbBytesLeft = cbTotalBytesToRead;
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nfUint64 cbBytesRead = 0;
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_In_ nfByte * pData = pBuffer;
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while (cbBytesLeft > 0) {
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nfUint32 cbBytesToRead;
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if (cbBytesLeft > IMPORTSTREAM_ZIP_CHUNKSIZE)
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cbBytesToRead = IMPORTSTREAM_ZIP_CHUNKSIZE;
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else
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cbBytesToRead = (nfUint32)cbBytesLeft;
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cbBytesLeft -= cbBytesToRead;
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nfInt64 nfSize = zip_fread(m_pFile, pData, cbBytesToRead);
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if (nfSize < 0)
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throw CNMRException(NMR_ERROR_COULDNOTREADSTREAM);
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cbBytesRead += nfSize;
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if (nfSize != (nfInt64)cbBytesToRead)
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break;
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pData += nfSize;
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}
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if ((nfUint64)cbBytesRead != cbTotalBytesToRead) {
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if (bNeedsToReadAll)
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throw CNMRException(NMR_ERROR_COULDNOTREADFULLDATA);
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}
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return (nfUint64)cbBytesRead;
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}
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nfUint64 CImportStream_ZIP::retrieveSize()
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{
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return m_nSize;
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}
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void CImportStream_ZIP::writeToFile(_In_ const nfWChar * pwszFileName)
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{
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throw CNMRException(NMR_ERROR_NOTIMPLEMENTED);
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}
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PImportStream CImportStream_ZIP::copyToMemory()
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{
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nfUint64 cbStreamSize = retrieveSize();
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return std::make_shared<CImportStream_Unique_Memory>(this, cbStreamSize, false);
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}
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}
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