ClickHouse/src/IO/BrotliWriteBuffer.h
2020-04-03 18:14:31 +03:00

41 lines
746 B
C++

#pragma once
#include <IO/WriteBuffer.h>
#include <IO/BufferWithOwnMemory.h>
namespace DB
{
class BrotliWriteBuffer : public BufferWithOwnMemory<WriteBuffer>
{
public:
BrotliWriteBuffer(
std::unique_ptr<WriteBuffer> out_,
int compression_level,
size_t buf_size = DBMS_DEFAULT_BUFFER_SIZE,
char * existing_memory = nullptr,
size_t alignment = 0);
~BrotliWriteBuffer() override;
void finish();
private:
void nextImpl() override;
class BrotliStateWrapper;
std::unique_ptr<BrotliStateWrapper> brotli;
size_t in_available;
const uint8_t * in_data;
size_t out_capacity;
uint8_t * out_data;
std::unique_ptr<WriteBuffer> out;
bool finished = false;
};
}