blob: 8f8684cb7d3e9988ce323dfd209e9a735c26fc39 [file] [log] [blame]
// 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 <vector>
#include "base/base_export.h"
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "base/trace_event/memory_dump_request_args.h"
#include "starboard/types.h"
namespace base {
class SequencedTaskRunner;
namespace trace_event {
// Schedules global dump requests based on the triggers added. The methods of
// this class are NOT thread safe and the client has to take care of invoking
// all the methods of the class safely.
class BASE_EXPORT MemoryDumpScheduler {
using PeriodicCallback = RepeatingCallback<void(MemoryDumpLevelOfDetail)>;
// Passed to Start().
struct BASE_EXPORT Config {
struct Trigger {
MemoryDumpLevelOfDetail level_of_detail;
uint32_t period_ms;
Config(const Config&);
std::vector<Trigger> triggers;
PeriodicCallback callback;
static MemoryDumpScheduler* GetInstance();
void Start(Config, scoped_refptr<SequencedTaskRunner> task_runner);
void Stop();
bool is_enabled_for_testing() const { return bool(task_runner_); }
friend class MemoryDumpSchedulerTest;
void StartInternal(Config);
void StopInternal();
void Tick(uint32_t expected_generation);
// Accessed only by the public methods (never from the task runner itself).
scoped_refptr<SequencedTaskRunner> task_runner_;
// These fields instead are only accessed from within the task runner.
uint32_t period_ms_; // 0 == disabled.
uint32_t generation_; // Used to invalidate outstanding tasks after Stop().
uint32_t tick_count_;
uint32_t light_dump_rate_;
uint32_t heavy_dump_rate_;
PeriodicCallback callback_;
} // namespace trace_event
} // namespace base