other-licenses/7zstub/src/7zip/Common/OutBuffer.h@97036ab72558
other-licenses/7zstub/src/7zip/Common/OutBuffer.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 // OutBuffer.h
3 #ifndef __OUTBUFFER_H
4 #define __OUTBUFFER_H
6 #include "../IStream.h"
7 #include "../../Common/MyCom.h"
9 #ifndef _NO_EXCEPTIONS
10 struct COutBufferException
11 {
12 HRESULT ErrorCode;
13 COutBufferException(HRESULT errorCode): ErrorCode(errorCode) {}
14 };
15 #endif
17 class COutBuffer
18 {
19 protected:
20 Byte *_buffer;
21 UInt32 _pos;
22 UInt32 _limitPos;
23 UInt32 _streamPos;
24 UInt32 _bufferSize;
25 CMyComPtr<ISequentialOutStream> _stream;
26 UInt64 _processedSize;
27 Byte *_buffer2;
28 bool _overDict;
30 HRESULT FlushPart();
31 void FlushWithCheck();
32 public:
33 #ifdef _NO_EXCEPTIONS
34 HRESULT ErrorCode;
35 #endif
37 COutBuffer(): _buffer(0), _pos(0), _stream(0), _buffer2(0) {}
38 ~COutBuffer() { Free(); }
40 bool Create(UInt32 bufferSize);
41 void Free();
43 void SetMemStream(Byte *buffer) { _buffer2 = buffer; }
44 void SetStream(ISequentialOutStream *stream);
45 void Init();
46 HRESULT Flush();
47 void ReleaseStream() { _stream.Release(); }
49 void WriteByte(Byte b)
50 {
51 _buffer[_pos++] = b;
52 if(_pos == _limitPos)
53 FlushWithCheck();
54 }
55 void WriteBytes(const void *data, size_t size)
56 {
57 for (size_t i = 0; i < size; i++)
58 WriteByte(((const Byte *)data)[i]);
59 }
61 UInt64 GetProcessedSize() const;
62 };
64 #endif
