ClickHouse/dbms/include/DB/IO/CompressedReadBuffer.h
2016-10-25 09:49:24 +03:00

34 lines
621 B
C++

#pragma once
#include <DB/IO/CompressedReadBufferBase.h>
#include <DB/IO/BufferWithOwnMemory.h>
#include <DB/IO/ReadBuffer.h>
namespace DB
{
class CompressedReadBuffer : public CompressedReadBufferBase, public BufferWithOwnMemory<ReadBuffer>
{
private:
size_t size_compressed = 0;
bool nextImpl() override;
public:
CompressedReadBuffer(ReadBuffer & in_)
: CompressedReadBufferBase(&in_), BufferWithOwnMemory<ReadBuffer>(0)
{
}
size_t readBig(char * to, size_t n) override;
/// Сжатый размер текущего блока.
size_t getSizeCompressed() const
{
return size_compressed;
}
};
}