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Bjorn A Mellemc4f86542019-11-21 18:37:181/*
2 * Copyright 2019 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10#ifndef TEST_TIME_CONTROLLER_EXTERNAL_TIME_CONTROLLER_H_
11#define TEST_TIME_CONTROLLER_EXTERNAL_TIME_CONTROLLER_H_
12
13#include <functional>
14#include <memory>
15
16#include "absl/strings/string_view.h"
17#include "api/task_queue/task_queue_base.h"
18#include "api/task_queue/task_queue_factory.h"
19#include "api/test/time_controller.h"
20#include "api/units/time_delta.h"
21#include "api/units/timestamp.h"
22#include "modules/utility/include/process_thread.h"
23#include "system_wrappers/include/clock.h"
24#include "test/time_controller/simulated_time_controller.h"
25
26namespace webrtc {
27
28// TimeController implementation built on an external controlled alarm.
29// This implementation is used to delegate scheduling and execution to an
30// external run loop.
31class ExternalTimeController : public TimeController, public TaskQueueFactory {
32 public:
33 explicit ExternalTimeController(ControlledAlarmClock* alarm);
34
35 // Implementation of TimeController.
36 Clock* GetClock() override;
37 TaskQueueFactory* GetTaskQueueFactory() override;
38 std::unique_ptr<ProcessThread> CreateProcessThread(
39 const char* thread_name) override;
Markus Handell486cc552019-12-03 13:37:2840 void AdvanceTime(TimeDelta duration) override;
Bjorn A Mellemc4f86542019-11-21 18:37:1841
42 // Implementation of TaskQueueFactory.
43 std::unique_ptr<TaskQueueBase, TaskQueueDeleter> CreateTaskQueue(
44 absl::string_view name,
45 TaskQueueFactory::Priority priority) const override;
46
47 private:
48 class ProcessThreadWrapper;
49 class TaskQueueWrapper;
50
51 // Executes any tasks scheduled at or before the current time. May call
52 // |ScheduleNext| to schedule the next call to |Run|.
53 void Run();
54
55 void UpdateTime();
56 void ScheduleNext();
57
58 ControlledAlarmClock* alarm_;
59 sim_time_impl::SimulatedTimeControllerImpl impl_;
Sebastian Jansson340af972019-12-04 09:07:4860 rtc::ScopedYieldPolicy yield_policy_;
Bjorn A Mellemc4f86542019-11-21 18:37:1861
62 // Overrides the global rtc::Clock to ensure that it reports the same times as
63 // the time controller.
64 rtc::ScopedBaseFakeClock global_clock_;
65};
66
67} // namespace webrtc
68
69#endif // TEST_TIME_CONTROLLER_EXTERNAL_TIME_CONTROLLER_H_