blob: 33cf80a681ab228b3dfeaba27ba8cc105e5644ec [file] [log] [blame]
// Copyright 2019 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 <jni.h>
#include <memory>
#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/memory/scoped_refptr.h"
namespace android_webview {
// MemoryMetricsLogger is responsible for logging the memory related heartbeat
// metrics. MemoryMetricsLogger logs metrics at certain intervals for as long
// as it exists.
// MemoryMetricsLogger does the logging on a background task runner and stops
// logging once MemoryMetricsLogger is destroyed.
class MemoryMetricsLogger {
using RecordCallback = base::OnceCallback<void(bool)>;
struct State;
friend jboolean JNI_MemoryMetricsLoggerTest_ForceRecordHistograms(
JNIEnv* env);
// Returns the single instance, if one was created.
static MemoryMetricsLogger* GetInstanceForTesting();
// Schedules recording metrics. Runs |done_callback| when done with the
// result of recording metrics. |done_callback| is run on a background
// TaskRunner.
void ScheduleRecordForTesting(RecordCallback done_callback);
// Called on the task runner to record metrics after a delay.
static void RecordMemoryMetricsAfterDelay(scoped_refptr<State> state);
// Requests the memory related metrics and calls
// RecordMemoryMetricsAfterDelay() to schedule another logging call. Runs
// |done_callback| when done.
static void RecordMemoryMetrics(scoped_refptr<State> state,
RecordCallback done_callback);
scoped_refptr<State> state_;
} // namespace android_webview