other-licenses/7zstub/src/7zip/Common/LSBFEncoder.cpp@97036ab72558 (annotated)
other-licenses/7zstub/src/7zip/Common/LSBFEncoder.cpp
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 | // LSBFEncoder.cpp |
| michael@0 | 2 | |
| michael@0 | 3 | #include "StdAfx.h" |
| michael@0 | 4 | |
| michael@0 | 5 | #include "LSBFEncoder.h" |
| michael@0 | 6 | #include "Common/Defs.h" |
| michael@0 | 7 | |
| michael@0 | 8 | namespace NStream { |
| michael@0 | 9 | namespace NLSBF { |
| michael@0 | 10 | |
| michael@0 | 11 | void CEncoder::WriteBits(UInt32 value, int numBits) |
| michael@0 | 12 | { |
| michael@0 | 13 | while(numBits > 0) |
| michael@0 | 14 | { |
| michael@0 | 15 | if (numBits < m_BitPos) |
| michael@0 | 16 | { |
| michael@0 | 17 | m_CurByte |= (value & ((1 << numBits) - 1)) << (8 - m_BitPos); |
| michael@0 | 18 | m_BitPos -= numBits; |
| michael@0 | 19 | return; |
| michael@0 | 20 | } |
| michael@0 | 21 | numBits -= m_BitPos; |
| michael@0 | 22 | m_Stream.WriteByte((Byte)(m_CurByte | (value << (8 - m_BitPos)))); |
| michael@0 | 23 | value >>= m_BitPos; |
| michael@0 | 24 | m_BitPos = 8; |
| michael@0 | 25 | m_CurByte = 0; |
| michael@0 | 26 | } |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | }} |
