ClickHouse/src/IO/WriteBufferFromFileBase.h

#pragma once

#include <string>
#include <fcntl.h>

#include <IO/WriteBuffer.h>
#include <IO/BufferWithOwnMemory.h>

namespace DB
{

class WriteBufferFromFileBase : public BufferWithOwnMemory<WriteBuffer>
{
public:
    WriteBufferFromFileBase(size_t buf_size, char * existing_memory, size_t alignment);

    void sync() override = 0;
    virtual std::string getFileName() const = 0;
};

}