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