SaraP
66 lines
2.4 KiB
C++
66 lines
2.4 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.h defines the CImportStream Class.
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This is an abstract base stream class for importing from various data sources.
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--*/
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#ifndef __NMR_IMPORTSTREAM
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#define __NMR_IMPORTSTREAM
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#include "Common/NMR_Types.h"
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#include "Common/NMR_Local.h"
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#define NMR_IMPORTSTREAM_COPYBUFFERSIZE (128 * 1024)
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#define NMR_IMPORTSTREAM_READBUFFERSIZE (128 * 1024)
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namespace NMR {
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class CImportStream;
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typedef std::shared_ptr <CImportStream> PImportStream;
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class CImportStream {
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private:
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public:
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virtual ~CImportStream() = default;
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virtual nfBool seekPosition(_In_ nfUint64 position, _In_ nfBool bHasToSucceed) = 0;
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virtual nfBool seekForward(_In_ nfUint64 bytes, _In_ nfBool bHasToSucceed) = 0;
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virtual nfBool seekFromEnd(_In_ nfUint64 bytes, _In_ nfBool bHasToSucceed) = 0;
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virtual nfUint64 readIntoBuffer(_In_ nfByte * pBuffer, _In_ nfUint64 cbTotalBytesToRead, nfBool bNeedsToReadAll) = 0;
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virtual nfUint64 retrieveSize() = 0;
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virtual void writeToFile(_In_ const nfWChar * pwszFileName) = 0;
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virtual PImportStream copyToMemory() = 0;
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virtual nfUint64 getPosition() = 0;
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};
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}
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#endif // __NMR_IMPORTSTREAM
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