other-licenses/7zstub/src/7zip/Common/OutBuffer.h@97036ab72558 (annotated)
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.
| michael@0 | 1 | // OutBuffer.h |
| michael@0 | 2 | |
| michael@0 | 3 | #ifndef __OUTBUFFER_H |
| michael@0 | 4 | #define __OUTBUFFER_H |
| michael@0 | 5 | |
| michael@0 | 6 | #include "../IStream.h" |
| michael@0 | 7 | #include "../../Common/MyCom.h" |
| michael@0 | 8 | |
| michael@0 | 9 | #ifndef _NO_EXCEPTIONS |
| michael@0 | 10 | struct COutBufferException |
| michael@0 | 11 | { |
| michael@0 | 12 | HRESULT ErrorCode; |
| michael@0 | 13 | COutBufferException(HRESULT errorCode): ErrorCode(errorCode) {} |
| michael@0 | 14 | }; |
| michael@0 | 15 | #endif |
| michael@0 | 16 | |
| michael@0 | 17 | class COutBuffer |
| michael@0 | 18 | { |
| michael@0 | 19 | protected: |
| michael@0 | 20 | Byte *_buffer; |
| michael@0 | 21 | UInt32 _pos; |
| michael@0 | 22 | UInt32 _limitPos; |
| michael@0 | 23 | UInt32 _streamPos; |
| michael@0 | 24 | UInt32 _bufferSize; |
| michael@0 | 25 | CMyComPtr<ISequentialOutStream> _stream; |
| michael@0 | 26 | UInt64 _processedSize; |
| michael@0 | 27 | Byte *_buffer2; |
| michael@0 | 28 | bool _overDict; |
| michael@0 | 29 | |
| michael@0 | 30 | HRESULT FlushPart(); |
| michael@0 | 31 | void FlushWithCheck(); |
| michael@0 | 32 | public: |
| michael@0 | 33 | #ifdef _NO_EXCEPTIONS |
| michael@0 | 34 | HRESULT ErrorCode; |
| michael@0 | 35 | #endif |
| michael@0 | 36 | |
| michael@0 | 37 | COutBuffer(): _buffer(0), _pos(0), _stream(0), _buffer2(0) {} |
| michael@0 | 38 | ~COutBuffer() { Free(); } |
| michael@0 | 39 | |
| michael@0 | 40 | bool Create(UInt32 bufferSize); |
| michael@0 | 41 | void Free(); |
| michael@0 | 42 | |
| michael@0 | 43 | void SetMemStream(Byte *buffer) { _buffer2 = buffer; } |
| michael@0 | 44 | void SetStream(ISequentialOutStream *stream); |
| michael@0 | 45 | void Init(); |
| michael@0 | 46 | HRESULT Flush(); |
| michael@0 | 47 | void ReleaseStream() { _stream.Release(); } |
| michael@0 | 48 | |
| michael@0 | 49 | void WriteByte(Byte b) |
| michael@0 | 50 | { |
| michael@0 | 51 | _buffer[_pos++] = b; |
| michael@0 | 52 | if(_pos == _limitPos) |
| michael@0 | 53 | FlushWithCheck(); |
| michael@0 | 54 | } |
| michael@0 | 55 | void WriteBytes(const void *data, size_t size) |
| michael@0 | 56 | { |
| michael@0 | 57 | for (size_t i = 0; i < size; i++) |
| michael@0 | 58 | WriteByte(((const Byte *)data)[i]); |
| michael@0 | 59 | } |
| michael@0 | 60 | |
| michael@0 | 61 | UInt64 GetProcessedSize() const; |
| michael@0 | 62 | }; |
| michael@0 | 63 | |
| michael@0 | 64 | #endif |
