gfx/src/gfxCrashReporterUtils.h
author Justin Lebar <justin.lebar@gmail.com>
Mon, 23 Apr 2012 00:42:13 -0400
changeset 95431 ee415e3f509d36f663a2abdbe99dfb7d94f63d31
parent 90744 5c1d6779a7d7fefaed6dbbdc2a7e09b668ebb793
child 96187 bc28779c3dab40f1a4ba265a3737b3c6bb9f5920
child 98529 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Bug 746055 - On desktop, increase image.mem.max_decoded_image_kb to 250mb, effectively backing out bug 732820. r=joe, a=desktop-only

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * http://www.mozilla.org/MPL/
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 * Software distributed under the License is distributed on an "AS IS" basis,
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 * for the specific language governing rights and limitations under the
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 * The Original Code is Mozilla Corporation code.
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 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef gfxCrashReporterUtils_h__
#define gfxCrashReporterUtils_h__

#include "gfxCore.h"

namespace mozilla {

/** \class ScopedGfxFeatureReporter
  *
  * On creation, adds "FeatureName?" to AppNotes
  * On destruction, adds "FeatureName-", or "FeatureName+" if you called SetSuccessful().
  *
  * Any such string is added at most once to AppNotes, and is subsequently skipped.
  *
  * This ScopedGfxFeatureReporter class is designed to be fool-proof to use in functions that
  * have many exit points. We don't want to encourage having function with many exit points.
  * It just happens that our graphics features initialization functions are like that.
  */
class NS_GFX ScopedGfxFeatureReporter
{
public:
  ScopedGfxFeatureReporter(const char *aFeature, bool force = false)
    : mFeature(aFeature), mStatusChar('-')
  {
    WriteAppNote(force ? '!' : '?');
  }
  ~ScopedGfxFeatureReporter() {
    WriteAppNote(mStatusChar);
  }
  void SetSuccessful() { mStatusChar = '+'; }

protected:
  const char *mFeature;
  char mStatusChar;

private:
  void WriteAppNote(char statusChar);
};

} // end namespace mozilla

#endif // gfxCrashReporterUtils_h__