ClickHouse/dbms/IO/NullWriteBuffer.h

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2020-02-03 00:03:59 +00:00
#pragma once
#include <IO/WriteBuffer.h>
#include <IO/BufferWithOwnMemory.h>
#include <boost/noncopyable.hpp>
namespace DB
{
/// Simply do nothing, can be used to measure amount of written bytes.
class NullWriteBuffer : public BufferWithOwnMemory<WriteBuffer>, boost::noncopyable
{
public:
NullWriteBuffer(size_t buf_size = 16<<10, char * existing_memory = nullptr, size_t alignment = false);
void nextImpl() override;
};
}