| // 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 "base/feature_list.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/profiler/stack_sampling_profiler.h" |
| #include "components/metrics/call_stack_profile_builder.h" |
| #include "components/metrics/call_stack_profile_params.h" |
| #include "components/metrics/metrics_provider.h" |
| |
| namespace metrics { |
| |
| class ChromeUserMetricsExtension; |
| |
| // Performs metrics logging for the stack sampling profiler. |
| class CallStackProfileMetricsProvider : public MetricsProvider { |
| public: |
| // These milestones of a process lifetime can be passed as process "mile- |
| // stones" to CallStackProfileBuilder::SetProcessMilestone(). Be sure to |
| // update the translation constants at the top of the .cc file when this is |
| // changed. |
| enum Milestones : int { |
| MAIN_LOOP_START, |
| MAIN_NAVIGATION_START, |
| MAIN_NAVIGATION_FINISHED, |
| FIRST_NONEMPTY_PAINT, |
| |
| SHUTDOWN_START, |
| |
| MILESTONES_MAX_VALUE |
| }; |
| |
| CallStackProfileMetricsProvider(); |
| ~CallStackProfileMetricsProvider() override; |
| |
| // Returns a callback for use with CallStackProfileBuilder that sets up |
| // parameters for general browser process sampling. The callback should be |
| // immediately passed to the CallStackProfileBuilder, and should not be |
| // reused. |
| static CallStackProfileBuilder::CompletedCallback |
| GetProfilerCallbackForBrowserProcess(const CallStackProfileParams& params); |
| |
| // Provides completed stack profile to the metrics provider. Intended for use |
| // when receiving profiles over IPC. In-process StackSamplingProfiler users |
| // should instead use a variant of GetProfilerCallback*(). |profile| is not |
| // const& because it must be passed with std::move. |
| static void ReceiveCompletedProfile( |
| const CallStackProfileParams& params, |
| base::TimeTicks profile_start_time, |
| base::StackSamplingProfiler::CallStackProfile profile); |
| |
| // MetricsProvider: |
| void OnRecordingEnabled() override; |
| void OnRecordingDisabled() override; |
| void ProvideCurrentSessionData( |
| ChromeUserMetricsExtension* uma_proto) override; |
| |
| protected: |
| // base::Feature for reporting profiles. Provided here for test use. |
| static const base::Feature kEnableReporting; |
| |
| // Reset the static state to the defaults after startup. |
| static void ResetStaticStateForTesting(); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(CallStackProfileMetricsProvider); |
| }; |
| |
| } // namespace metrics |
| |
| #endif // COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_ |