49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef gfxCrashReporterUtils_h__
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#define gfxCrashReporterUtils_h__
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namespace mozilla {
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/** \class ScopedGfxFeatureReporter
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*
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* On creation, adds "FeatureName?" to AppNotes
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* On destruction, adds "FeatureName-", or "FeatureName+" if you called SetSuccessful().
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*
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* Any such string is added at most once to AppNotes, and is subsequently skipped.
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*
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* This ScopedGfxFeatureReporter class is designed to be fool-proof to use in functions that
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* have many exit points. We don't want to encourage having function with many exit points.
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* It just happens that our graphics features initialization functions are like that.
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*/
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class ScopedGfxFeatureReporter
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{
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public:
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explicit ScopedGfxFeatureReporter(const char *aFeature, bool force = false)
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: mFeature(aFeature), mStatusChar('-')
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{
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WriteAppNote(force ? '!' : '?');
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}
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~ScopedGfxFeatureReporter() {
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WriteAppNote(mStatusChar);
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}
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void SetSuccessful() { mStatusChar = '+'; }
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class AppNoteWritingRunnable;
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protected:
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const char *mFeature;
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char mStatusChar;
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private:
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void WriteAppNote(char statusChar);
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};
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} // end namespace mozilla
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#endif // gfxCrashReporterUtils_h__
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