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// Copyright 2017 The Chromium Authors
// 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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