Tue, 06 Jan 2015 21:39:09 +0100
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 | // LimitedStreams.cpp |
michael@0 | 2 | |
michael@0 | 3 | #include "StdAfx.h" |
michael@0 | 4 | |
michael@0 | 5 | #include "LimitedStreams.h" |
michael@0 | 6 | #include "../../Common/Defs.h" |
michael@0 | 7 | |
michael@0 | 8 | void CLimitedSequentialInStream::Init(ISequentialInStream *stream, UInt64 streamSize) |
michael@0 | 9 | { |
michael@0 | 10 | _stream = stream; |
michael@0 | 11 | _size = streamSize; |
michael@0 | 12 | } |
michael@0 | 13 | |
michael@0 | 14 | STDMETHODIMP CLimitedSequentialInStream::Read(void *data, UInt32 size, UInt32 *processedSize) |
michael@0 | 15 | { |
michael@0 | 16 | UInt32 processedSizeReal; |
michael@0 | 17 | UInt32 sizeToRead = UInt32(MyMin(_size, UInt64(size))); |
michael@0 | 18 | HRESULT result = _stream->Read(data, sizeToRead, &processedSizeReal); |
michael@0 | 19 | _size -= processedSizeReal; |
michael@0 | 20 | if(processedSize != NULL) |
michael@0 | 21 | *processedSize = processedSizeReal; |
michael@0 | 22 | return result; |
michael@0 | 23 | } |
michael@0 | 24 |