57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
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/*
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* Copyright 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_BASE_FAKECLOCK_H_
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#define WEBRTC_BASE_FAKECLOCK_H_
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/timedelta.h"
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#include "webrtc/base/timeutils.h"
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namespace rtc {
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// Fake clock for use with unit tests, which does not tick on its own.
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// Starts at time 0.
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//
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// TODO(deadbeef): Unify with webrtc::SimulatedClock.
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class FakeClock : public ClockInterface {
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public:
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~FakeClock() override {}
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// ClockInterface implementation.
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uint64_t TimeNanos() const override;
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// Methods that can be used by the test to control the time.
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// Should only be used to set a time in the future.
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void SetTimeNanos(uint64_t nanos);
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void AdvanceTime(TimeDelta delta);
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private:
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CriticalSection lock_;
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uint64_t time_ GUARDED_BY(lock_) = 0u;
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};
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// Helper class that sets itself as the global clock in its constructor and
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// unsets it in its destructor.
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class ScopedFakeClock : public FakeClock {
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public:
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ScopedFakeClock();
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~ScopedFakeClock() override;
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private:
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ClockInterface* prev_clock_;
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};
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} // namespace rtc
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#endif // WEBRTC_BASE_FAKECLOCK_H_
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