62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright 2017 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef COMPONENTS_METRICS_STABILITY_METRICS_PROVIDER_H_
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#define COMPONENTS_METRICS_STABILITY_METRICS_PROVIDER_H_
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#include "base/memory/raw_ptr.h"
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#include "base/time/time.h"
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#include "build/build_config.h"
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#include "components/metrics/metrics_provider.h"
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class PrefService;
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class PrefRegistrySimple;
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namespace metrics {
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class SystemProfileProto;
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// Stores and loads system information to prefs for stability logs.
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class StabilityMetricsProvider : public MetricsProvider {
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public:
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explicit StabilityMetricsProvider(PrefService* local_state);
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StabilityMetricsProvider(const StabilityMetricsProvider&) = delete;
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StabilityMetricsProvider& operator=(const StabilityMetricsProvider&) = delete;
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~StabilityMetricsProvider() override;
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static void RegisterPrefs(PrefRegistrySimple* registry);
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void LogCrash(base::Time last_live_timestamp);
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void LogLaunch();
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private:
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#if BUILDFLAG(IS_WIN)
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// This function is virtual for testing. The |last_live_timestamp| is a
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// time point where the previous browser was known to be alive, and is used
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// to determine whether the system session embedding that timestamp terminated
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// uncleanly.
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virtual bool IsUncleanSystemSession(base::Time last_live_timestamp);
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void MaybeLogSystemCrash(base::Time last_live_timestamp);
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#endif
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// Increments an Integer pref value specified by |path|.
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void IncrementPrefValue(const char* path);
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// Gets pref value specified by |path| and resets it to 0 after retrieving.
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int GetAndClearPrefValue(const char* path, int* value);
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// MetricsProvider:
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void Init() override;
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void ClearSavedStabilityMetrics() override;
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void ProvideStabilityMetrics(
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SystemProfileProto* system_profile_proto) override;
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raw_ptr<PrefService> local_state_;
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};
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} // namespace metrics
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#endif // COMPONENTS_METRICS_STABILITY_METRICS_PROVIDER_H_
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