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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "nsString.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 ScopedGfxFeatureReporter {
public:
explicit ScopedGfxFeatureReporter(const char* aFeature, bool aForce = false)
: mFeature(aFeature), mStatusChar('-'), mStatusNumber(0) {
WriteAppNote(aForce ? '!' : '?', 0);
}
~ScopedGfxFeatureReporter() { WriteAppNote(mStatusChar, mStatusNumber); }
void SetSuccessful() { mStatusChar = '+'; }
void SetSuccessful(int32_t aNumber) {
mStatusChar = '+';
mStatusNumber = aNumber;
}
static void AppNote(const nsACString& aMessage);
class AppNoteWritingRunnable;
protected:
const char* mFeature;
char mStatusChar;
int32_t mStatusNumber;
private:
void WriteAppNote(char statusChar, int32_t statusNumber);
};
} // end namespace mozilla
#endif // gfxCrashReporterUtils_h__
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