| // Copyright 2015 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_CALL_STACK_PROFILE_METRICS_PROVIDER_H_ |
| #define COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_ |
| |
| #include <vector> |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/profiler/stack_sampling_profiler.h" |
| #include "components/metrics/metrics_provider.h" |
| |
| namespace base { |
| class MessageLoopProxy; |
| } // namespace base |
| |
| namespace metrics { |
| class ChromeUserMetricsExtension; |
| |
| // Performs metrics logging for the stack sampling profiler. |
| class CallStackProfileMetricsProvider : public MetricsProvider { |
| public: |
| // The event that triggered the profile collection. |
| enum Trigger { |
| UNKNOWN, |
| PROCESS_STARTUP, |
| JANKY_TASK, |
| THREAD_HUNG |
| }; |
| |
| CallStackProfileMetricsProvider(); |
| ~CallStackProfileMetricsProvider() override; |
| |
| // MetricsProvider: |
| void OnRecordingEnabled() override; |
| void OnRecordingDisabled() override; |
| void ProvideGeneralMetrics(ChromeUserMetricsExtension* uma_proto) override; |
| |
| // Appends |profiles| for use by the next invocation of ProvideGeneralMetrics, |
| // rather than sourcing them from the StackSamplingProfiler. |
| void AppendSourceProfilesForTesting( |
| const std::vector<base::StackSamplingProfiler::CallStackProfile>& |
| profiles); |
| |
| protected: |
| // Finch field trial and group for reporting profiles. Provided here for test |
| // use. |
| static const char kFieldTrialName[]; |
| static const char kReportProfilesGroupName[]; |
| |
| private: |
| // Returns true if reporting of profiles is enabled according to the |
| // controlling Finch field trial. |
| static bool IsSamplingProfilingReportingEnabled(); |
| |
| // Invoked by the profiler on another thread. |
| static void ReceiveCompletedProfiles( |
| scoped_refptr<base::MessageLoopProxy> message_loop, |
| base::WeakPtr<CallStackProfileMetricsProvider> provider, |
| const base::StackSamplingProfiler::CallStackProfiles& profiles); |
| void AppendCompletedProfiles( |
| const base::StackSamplingProfiler::CallStackProfiles& profiles); |
| |
| base::StackSamplingProfiler::CallStackProfiles pending_profiles_; |
| |
| base::WeakPtrFactory<CallStackProfileMetricsProvider> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CallStackProfileMetricsProvider); |
| }; |
| |
| } // namespace metrics |
| |
| #endif // COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_ |