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