other-licenses/7zstub/src/7zip/Common/LimitedStreams.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 // 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

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