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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.
- #include "components/metrics/delegating_provider.h"
- #include "base/barrier_closure.h"
- #include "base/notreached.h"
- namespace metrics {
- DelegatingProvider::DelegatingProvider() = default;
- DelegatingProvider::~DelegatingProvider() = default;
- void DelegatingProvider::RegisterMetricsProvider(
- std::unique_ptr<MetricsProvider> provider) {
- metrics_providers_.push_back(std::move(provider));
- }
- const std::vector<std::unique_ptr<MetricsProvider>>&
- DelegatingProvider::GetProviders() {
- return metrics_providers_;
- }
- void DelegatingProvider::Init() {
- for (auto& provider : metrics_providers_)
- provider->Init();
- }
- void DelegatingProvider::AsyncInit(base::OnceClosure done_callback) {
- base::RepeatingClosure barrier =
- base::BarrierClosure(metrics_providers_.size(), std::move(done_callback));
- for (auto& provider : metrics_providers_) {
- provider->AsyncInit(barrier);
- }
- }
- void DelegatingProvider::OnDidCreateMetricsLog() {
- for (auto& provider : metrics_providers_)
- provider->OnDidCreateMetricsLog();
- }
- void DelegatingProvider::OnRecordingEnabled() {
- for (auto& provider : metrics_providers_)
- provider->OnRecordingEnabled();
- }
- void DelegatingProvider::OnRecordingDisabled() {
- for (auto& provider : metrics_providers_)
- provider->OnRecordingDisabled();
- }
- void DelegatingProvider::OnClientStateCleared() {
- for (auto& provider : metrics_providers_)
- provider->OnClientStateCleared();
- }
- void DelegatingProvider::OnAppEnterBackground() {
- for (auto& provider : metrics_providers_)
- provider->OnAppEnterBackground();
- }
- bool DelegatingProvider::HasIndependentMetrics() {
- // These are collected seperately for each provider.
- NOTREACHED();
- return false;
- }
- void DelegatingProvider::ProvideSystemProfileMetrics(
- SystemProfileProto* system_profile_proto) {
- // ProvideSystemProfileMetricsWithLogCreationTime() should be called instead.
- NOTREACHED();
- }
- void DelegatingProvider::ProvideSystemProfileMetricsWithLogCreationTime(
- base::TimeTicks log_creation_time,
- SystemProfileProto* system_profile_proto) {
- for (auto& provider : metrics_providers_) {
- provider->ProvideSystemProfileMetricsWithLogCreationTime(
- log_creation_time, system_profile_proto);
- }
- }
- bool DelegatingProvider::HasPreviousSessionData() {
- // All providers are queried (rather than stopping after the first "true"
- // response) in case they do any kind of setup work in preparation for
- // the later call to RecordInitialHistogramSnapshots().
- bool has_stability_metrics = false;
- for (auto& provider : metrics_providers_)
- has_stability_metrics |= provider->HasPreviousSessionData();
- return has_stability_metrics;
- }
- void DelegatingProvider::ProvidePreviousSessionData(
- ChromeUserMetricsExtension* uma_proto) {
- for (const auto& provider : metrics_providers_)
- provider->ProvidePreviousSessionData(uma_proto);
- }
- void DelegatingProvider::ProvideCurrentSessionData(
- ChromeUserMetricsExtension* uma_proto) {
- for (const auto& provider : metrics_providers_)
- provider->ProvideCurrentSessionData(uma_proto);
- }
- void DelegatingProvider::ProvideCurrentSessionUKMData() {
- for (const auto& provider : metrics_providers_)
- provider->ProvideCurrentSessionUKMData();
- }
- void DelegatingProvider::ClearSavedStabilityMetrics() {
- for (auto& provider : metrics_providers_)
- provider->ClearSavedStabilityMetrics();
- }
- void DelegatingProvider::RecordHistogramSnapshots(
- base::HistogramSnapshotManager* snapshot_manager) {
- for (auto& provider : metrics_providers_)
- provider->RecordHistogramSnapshots(snapshot_manager);
- }
- void DelegatingProvider::RecordInitialHistogramSnapshots(
- base::HistogramSnapshotManager* snapshot_manager) {
- for (auto& provider : metrics_providers_)
- provider->RecordInitialHistogramSnapshots(snapshot_manager);
- }
- } // namespace metrics
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