blob: 2e1f2e07dd7dfbe9a448a3efea6b9d1a643d21b6 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
#pragma once
#include "input.h"
#include "output.h"
#include <util/system/direct_io.h>
class TRandomAccessFileInput: public IInputStream {
public:
TRandomAccessFileInput(TDirectIOBufferedFile& file, ui64 position);
protected:
size_t DoRead(void* buf, size_t len) override;
size_t DoSkip(size_t len) override;
private:
TDirectIOBufferedFile& File;
ui64 Position;
};
class TRandomAccessFileOutput: public IOutputStream {
public:
TRandomAccessFileOutput(TDirectIOBufferedFile& file);
TRandomAccessFileOutput(TRandomAccessFileOutput&&) noexcept = default;
TRandomAccessFileOutput& operator=(TRandomAccessFileOutput&&) noexcept = default;
protected:
TDirectIOBufferedFile* File;
private:
void DoWrite(const void* buf, size_t len) override;
void DoFlush() override;
};
class TBufferedFileOutputEx: public TRandomAccessFileOutput {
public:
TBufferedFileOutputEx(const TString& path, EOpenMode oMode, size_t buflen = 1 << 17);
private:
void DoFlush() override;
void DoFinish() override;
THolder<TDirectIOBufferedFile> FileHolder;
};
|
