blob: c2b0c6c6b9c59ace990f243281477d9213d9fccf [file] [log] [blame]
// 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.
#include <string>
#include "base/feature_list.h"
#include "base/macros.h"
#include "base/time/time.h"
#include "components/metrics/metrics_provider.h"
#include "third_party/metrics_proto/sampled_profile.pb.h"
namespace metrics {
class ChromeUserMetricsExtension;
// Performs metrics logging for the stack sampling profiler.
class CallStackProfileMetricsProvider : public MetricsProvider {
~CallStackProfileMetricsProvider() override;
// Receives SampledProfile protobuf instances. May be called on any thread.
static void ReceiveProfile(base::TimeTicks profile_start_time,
SampledProfile profile);
// Receives serialized SampledProfile protobuf instances. May be called on any
// thread. Note that receiving serialized profiles is supported separately so
// that profiles received in serialized form can be kept in that form until
// upload. This significantly reduces memory costs. Serialized profile strings
// may be large, so the caller should use std::move() to provide them to this
// API rather than copying by value.
static void ReceiveSerializedProfile(base::TimeTicks profile_start_time,
std::string serialized_sampled_profile);
// MetricsProvider:
void OnRecordingEnabled() override;
void OnRecordingDisabled() override;
void ProvideCurrentSessionData(
ChromeUserMetricsExtension* uma_proto) override;
// Enables reporting of sampling heap profiles.
static const base::Feature kHeapProfilerReporting;
// base::Feature for reporting CPU profiles. Provided here for test use.
static const base::Feature kSamplingProfilerReporting;
// Reset the static state to the defaults after startup.
static void ResetStaticStateForTesting();
} // namespace metrics