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- // Copyright 2014 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.
- #ifndef MEDIA_BASE_FAKE_SINGLE_THREAD_TASK_RUNNER_H_
- #define MEDIA_BASE_FAKE_SINGLE_THREAD_TASK_RUNNER_H_
- #include <map>
- #include "base/callback_forward.h"
- #include "base/memory/raw_ptr.h"
- #include "base/task/single_thread_task_runner.h"
- #include "base/test/simple_test_tick_clock.h"
- #include "base/time/time.h"
- namespace media {
- class FakeSingleThreadTaskRunner final : public base::SingleThreadTaskRunner {
- public:
- explicit FakeSingleThreadTaskRunner(base::SimpleTestTickClock* clock);
- FakeSingleThreadTaskRunner(const FakeSingleThreadTaskRunner&) = delete;
- FakeSingleThreadTaskRunner& operator=(const FakeSingleThreadTaskRunner&) =
- delete;
- void RunTasks();
- // Note: Advances |clock_|.
- void Sleep(base::TimeDelta t);
- // base::SingleThreadTaskRunner implementation.
- bool PostDelayedTask(const base::Location& from_here,
- base::OnceClosure task,
- base::TimeDelta delay) final;
- bool RunsTasksInCurrentSequence() const final;
- // This function is currently not used, and will return false.
- bool PostNonNestableDelayedTask(const base::Location& from_here,
- base::OnceClosure task,
- base::TimeDelta delay) final;
- protected:
- ~FakeSingleThreadTaskRunner() final;
- private:
- const raw_ptr<base::SimpleTestTickClock> clock_;
- // A compound key is used to ensure FIFO execution of delayed tasks scheduled
- // for the same point-in-time. The second part of the key is simply a FIFO
- // sequence number.
- using TaskKey = std::pair<base::TimeTicks, unsigned int>;
- // Note: The std::map data structure was chosen because the entire
- // cast_unittests suite performed 20% faster than when using
- // std::priority_queue. http://crbug.com/530842
- std::map<TaskKey, base::OnceClosure> tasks_;
- bool fail_on_next_task_;
- };
- } // namespace media
- #endif // MEDIA_BASE_FAKE_SINGLE_THREAD_TASK_RUNNER_H_
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