| // Copyright 2020 The Fuchsia 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 SRC_MEDIA_AUDIO_AUDIO_CORE_AUDIO_CLOCK_MANAGER_H_ |
| #define SRC_MEDIA_AUDIO_AUDIO_CORE_AUDIO_CLOCK_MANAGER_H_ |
| |
| #include "src/media/audio/audio_core/audio_clock.h" |
| |
| namespace media::audio { |
| |
| // |
| // AudioClockManager provides a mechanism for relating all clocks created under a single manager |
| // instance. |
| // |
| // In AudioCore, an AudioClockManager instance is provided per-Context and facilitates creation of |
| // AudioClocks across AudioCore. Overriding the AudioClockManager class takes advantage of the |
| // single point-of-entry for clock creation, enabling sweeping AudioClock modifications and/or |
| // stubbing for tests. |
| // |
| |
| class AudioClockManager { |
| public: |
| virtual ~AudioClockManager() = default; |
| |
| virtual std::unique_ptr<AudioClock> CreateClientAdjustable(zx::clock clock) { |
| return std::make_unique<AudioClock>(AudioClock::ClientAdjustable(std::move(clock))); |
| } |
| |
| virtual std::unique_ptr<AudioClock> CreateClientFixed(zx::clock clock) { |
| return std::make_unique<AudioClock>(AudioClock::ClientFixed(std::move(clock))); |
| } |
| |
| virtual std::unique_ptr<AudioClock> CreateDeviceAdjustable(zx::clock clock, uint32_t domain) { |
| return std::make_unique<AudioClock>(AudioClock::DeviceAdjustable(std::move(clock), domain)); |
| } |
| |
| virtual std::unique_ptr<AudioClock> CreateDeviceFixed(zx::clock clock, uint32_t domain) { |
| return std::make_unique<AudioClock>(AudioClock::DeviceFixed(std::move(clock), domain)); |
| } |
| |
| // |
| // The following are intended to be test-only and overridden in FakeClockManager. |
| // |
| |
| virtual std::unique_ptr<AudioClock> CreateClientAdjustable(zx::time start_time, |
| int32_t rate_adjust_ppm) { |
| FX_CHECK(false) << "Custom CreateClientAdjustable not available for real clocks."; |
| return nullptr; |
| } |
| |
| virtual std::unique_ptr<AudioClock> CreateClientFixed(zx::time start_time, |
| int32_t rate_adjust_ppm) { |
| FX_CHECK(false) << "Custom CreateClientFixed not available for real clocks."; |
| return nullptr; |
| } |
| |
| virtual std::unique_ptr<AudioClock> CreateDeviceAdjustable(zx::time start_time, |
| int32_t rate_adjust_ppm, |
| uint32_t domain) { |
| FX_CHECK(false) << "Custom CreateDeviceAdjustable not available for real clocks."; |
| return nullptr; |
| } |
| |
| virtual std::unique_ptr<AudioClock> CreateDeviceFixed(zx::time start_time, |
| int32_t rate_adjust_ppm, uint32_t domain) { |
| FX_CHECK(false) << "Custom CreateDeviceFixed not available for real clocks."; |
| return nullptr; |
| } |
| |
| virtual void AdvanceMonoTimeBy(zx::duration duration) { |
| FX_CHECK(false) << "AdvanceMonoTimeBy is not available for real clocks."; |
| } |
| |
| virtual zx::time mono_time() const { return zx::clock::get_monotonic(); } |
| }; |
| |
| } // namespace media::audio |
| |
| #endif // SRC_MEDIA_AUDIO_AUDIO_CORE_AUDIO_CLOCK_MANAGER_H_ |