gfx/2d/DrawEventRecorder.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.

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     2  * This Source Code Form is subject to the terms of the Mozilla Public
     3  * License, v. 2.0. If a copy of the MPL was not distributed with this
     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     6 #include "DrawEventRecorder.h"
     7 #include "PathRecording.h"
     9 namespace mozilla {
    10 namespace gfx {
    12 using namespace std;
    14 const uint32_t kMagicInt = 0xc001feed;
    16 DrawEventRecorderPrivate::DrawEventRecorderPrivate(std::ostream *aStream)
    17   : mOutputStream(aStream)
    18 {
    19 }
    21 void
    22 DrawEventRecorderPrivate::RecordEvent(const RecordedEvent &aEvent)
    23 {
    24   WriteElement(*mOutputStream, aEvent.mType);
    26   aEvent.RecordToStream(*mOutputStream);
    28   Flush();
    29 }
    31 DrawEventRecorderFile::DrawEventRecorderFile(const char *aFilename)
    32   : DrawEventRecorderPrivate(nullptr) 
    33   , mOutputFile(aFilename, ofstream::binary)
    34 {
    35   mOutputStream = &mOutputFile;
    37   WriteElement(*mOutputStream, kMagicInt);
    38   WriteElement(*mOutputStream, kMajorRevision);
    39   WriteElement(*mOutputStream, kMinorRevision);
    40 }
    42 DrawEventRecorderFile::~DrawEventRecorderFile()
    43 {
    44   mOutputFile.close();
    45 }
    47 void
    48 DrawEventRecorderFile::Flush()
    49 {
    50   mOutputFile.flush();
    51 }
    53 }
    54 }

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