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#pragma once
#include <util/generic/ptr.h>
#include <util/stream/input.h>
#include <util/stream/output.h>
/**
* @addtogroup Streams_Archs
* @{
*/
// @brief Stream to compress into zstd archive
class TZstdCompress: public IOutputStream {
public:
/**
@param slave stream to write compressed data to
@param quality, higher quality - slower but better compression.
0 is default compression (see constant ZSTD_CLEVEL_DEFAULT(3))
max compression is ZSTD_MAX_CLEVEL (22)
*/
explicit TZstdCompress(IOutputStream* slave, int quality = 0);
~TZstdCompress() override;
private:
void DoWrite(const void* buffer, size_t size) override;
void DoFlush() override;
void DoFinish() override;
public:
class TImpl;
THolder<TImpl> Impl_;
};
////////////////////////////////////////////////////////////////////////////////
// @brief Buffered stream to decompress from zstd archive
class TZstdDecompress: public IInputStream {
public:
/**
@param slave stream to read compressed data from
@param bufferSize approximate size of buffer compressed data is read in
*/
explicit TZstdDecompress(IInputStream* slave, size_t bufferSize = 8 * 1024);
~TZstdDecompress() override;
private:
size_t DoRead(void* buffer, size_t size) override;
private:
class TImpl;
THolder<TImpl> Impl_;
};
/** @} */
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