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#pragma once
#include "clickhouse_config.h"
#if USE_SNAPPY
#include <IO/ReadBuffer.h>
#include <IO/SeekableReadBuffer.h>
#include <IO/BufferWithOwnMemory.h>
namespace DB
{
class SnappyReadBuffer : public BufferWithOwnMemory<SeekableReadBuffer>
{
public:
explicit SnappyReadBuffer(
std::unique_ptr<ReadBuffer> in_,
size_t buf_size = DBMS_DEFAULT_BUFFER_SIZE,
char * existing_memory = nullptr,
size_t alignment = 0);
~SnappyReadBuffer() override;
bool nextImpl() override;
off_t seek(off_t off, int whence) override;
off_t getPosition() override;
private:
std::unique_ptr<ReadBuffer> in;
String compress_buffer;
String uncompress_buffer;
};
}
#endif
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