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/*
* Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef API_METRONOME_TEST_FAKE_METRONOME_H_
#define API_METRONOME_TEST_FAKE_METRONOME_H_
#include <memory>
#include <set>
#include <vector>
#include "api/metronome/metronome.h"
#include "api/task_queue/task_queue_base.h"
#include "api/task_queue/task_queue_factory.h"
#include "api/units/time_delta.h"
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/task_queue.h"
#include "rtc_base/task_utils/repeating_task.h"
#include "rtc_base/thread_annotations.h"
namespace webrtc::test {
// ForcedTickMetronome is a Metronome that ticks when `Tick()` is invoked.
// The constructor argument `tick_period` returned in `TickPeriod()`.
class ForcedTickMetronome : public Metronome {
public:
explicit ForcedTickMetronome(TimeDelta tick_period);
// Forces all TickListeners to run `OnTick`.
void Tick();
size_t NumListeners();
// Metronome implementation.
void RequestCallOnNextTick(absl::AnyInvocable<void() &&> callback) override;
TimeDelta TickPeriod() const override;
private:
const TimeDelta tick_period_;
std::vector<absl::AnyInvocable<void() &&>> callbacks_;
};
// FakeMetronome is a metronome that ticks based on a repeating task at the
// `tick_period` provided in the constructor. It is designed for use with
// simulated task queues for unit tests.
//
// `Stop()` must be called before destruction, as it cancels the metronome tick
// on the proper task queue.
class FakeMetronome : public Metronome {
public:
explicit FakeMetronome(TimeDelta tick_period);
// Metronome implementation.
void RequestCallOnNextTick(absl::AnyInvocable<void() &&> callback) override;
TimeDelta TickPeriod() const override;
private:
const TimeDelta tick_period_;
std::vector<absl::AnyInvocable<void() &&>> callbacks_;
};
} // namespace webrtc::test
#endif // API_METRONOME_TEST_FAKE_METRONOME_H_
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