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https://github.com/PurpleI2P/i2pd.git
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60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
/*
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* Copyright (c) 2013-2020, The PurpleI2P Project
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*
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* This file is part of Purple i2pd project and licensed under BSD3
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*
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* See full license text in LICENSE file at top of project tree
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*/
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#ifndef GZIP_H__
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#define GZIP_H__
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#include <zlib.h>
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#include <vector>
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namespace i2p
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{
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namespace data
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{
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class GzipInflator
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{
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public:
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GzipInflator ();
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~GzipInflator ();
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size_t Inflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen);
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/** @note @a os failbit will be set in case of error */
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void Inflate (const uint8_t * in, size_t inLen, std::ostream& os);
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void Inflate (std::istream& in, std::ostream& out);
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private:
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z_stream m_Inflator;
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bool m_IsDirty;
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};
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class GzipDeflator
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{
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public:
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GzipDeflator ();
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~GzipDeflator ();
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void SetCompressionLevel (int level);
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size_t Deflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen);
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size_t Deflate (const std::vector<std::pair<const uint8_t *, size_t> >& bufs, uint8_t * out, size_t outLen);
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private:
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z_stream m_Deflator;
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bool m_IsDirty;
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};
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size_t GzipNoCompression (const uint8_t * in, uint16_t inLen, uint8_t * out, size_t outLen); // for < 64K
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size_t GzipNoCompression (const std::vector<std::pair<const uint8_t *, size_t> >& bufs, uint8_t * out, size_t outLen); // for total size < 64K
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} // data
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} // i2p
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#endif /* GZIP_H__ */
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