gecko-dev/gfx/src/gfxCrashReporterUtils.h

50 строки
1.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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 = '+'; }
class AppNoteWritingRunnable;
protected:
const char *mFeature;
char mStatusChar;
private:
void WriteAppNote(char statusChar);
};
} // end namespace mozilla
#endif // gfxCrashReporterUtils_h__