4de3115e8f
Bug: webrtc:9883 Change-Id: Ibebf3ba3918139c34ff2ab83ea4a06a26fae2507 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/140947 Commit-Queue: Sebastian Jansson <srte@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28229}
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*
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* Copyright (c) 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 TEST_DRIFTING_CLOCK_H_
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#define TEST_DRIFTING_CLOCK_H_
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#include <stdint.h>
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#include "system_wrappers/include/clock.h"
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#include "system_wrappers/include/ntp_time.h"
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namespace webrtc {
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namespace test {
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class DriftingClock : public Clock {
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public:
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// TODO(danilchap): Make this constants constexpr when it would be supported.
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static const float kDoubleSpeed; // 2.0f;
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static const float kNoDrift; // 1.0f;
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static const float kHalfSpeed; // 0.5f;
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DriftingClock(Clock* clock, float speed);
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// TODO(danilchap): Make this functions constexpr when it would be supported.
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static float PercentsFaster(float percent) { return 1.0f + percent / 100.0f; }
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static float PercentsSlower(float percent) { return 1.0f - percent / 100.0f; }
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Timestamp CurrentTime() override;
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NtpTime CurrentNtpTime() override;
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int64_t CurrentNtpInMilliseconds() override;
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private:
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TimeDelta Drift() const;
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Clock* const clock_;
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const float drift_;
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const Timestamp start_time_;
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};
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} // namespace test
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} // namespace webrtc
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#endif // TEST_DRIFTING_CLOCK_H_
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