| /* |
| * Copyright 2016 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 RTC_BASE_FAKE_CLOCK_H_ |
| #define RTC_BASE_FAKE_CLOCK_H_ |
| |
| #include <stdint.h> |
| |
| #include "api/units/time_delta.h" |
| #include "api/units/timestamp.h" |
| #include "rtc_base/critical_section.h" |
| #include "rtc_base/thread_annotations.h" |
| #include "rtc_base/time_utils.h" |
| |
| namespace rtc { |
| |
| // Fake clock for use with unit tests, which does not tick on its own. |
| // Starts at time 0. |
| // |
| // TODO(deadbeef): Unify with webrtc::SimulatedClock. |
| class FakeClock : public ClockInterface { |
| public: |
| FakeClock() = default; |
| FakeClock(const FakeClock&) = delete; |
| FakeClock& operator=(const FakeClock&) = delete; |
| ~FakeClock() override = default; |
| |
| // ClockInterface implementation. |
| int64_t TimeNanos() const override; |
| |
| // Methods that can be used by the test to control the time. |
| |
| // Should only be used to set a time in the future. |
| void SetTime(webrtc::Timestamp new_time); |
| |
| void AdvanceTime(webrtc::TimeDelta delta); |
| |
| private: |
| CriticalSection lock_; |
| int64_t time_ns_ RTC_GUARDED_BY(lock_) = 0; |
| }; |
| |
| class ThreadProcessingFakeClock : public ClockInterface { |
| public: |
| int64_t TimeNanos() const override { return clock_.TimeNanos(); } |
| void SetTime(webrtc::Timestamp time); |
| void AdvanceTime(webrtc::TimeDelta delta); |
| |
| private: |
| FakeClock clock_; |
| }; |
| |
| // Helper class that sets itself as the global clock in its constructor and |
| // unsets it in its destructor. |
| class ScopedBaseFakeClock : public FakeClock { |
| public: |
| ScopedBaseFakeClock(); |
| ~ScopedBaseFakeClock() override; |
| |
| private: |
| ClockInterface* prev_clock_; |
| }; |
| |
| // TODO(srte): Rename this to reflect that it also does thread processing. |
| class ScopedFakeClock : public ThreadProcessingFakeClock { |
| public: |
| ScopedFakeClock(); |
| ~ScopedFakeClock() override; |
| |
| private: |
| ClockInterface* prev_clock_; |
| }; |
| |
| } // namespace rtc |
| |
| #endif // RTC_BASE_FAKE_CLOCK_H_ |