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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
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* Copyright (c) 2017 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 AUDIO_TIME_INTERVAL_H_
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#define AUDIO_TIME_INTERVAL_H_
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#include <stdint.h>
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#include "api/optional.h"
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namespace webrtc {
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// This class logs the first and last time its Extend() function is called.
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//
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// This class is not thread-safe; Extend() calls should only be made by a
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// single thread at a time, such as within a lock or destructor.
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//
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// Example usage:
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// // let x < y < z < u < v
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// rtc::TimeInterval interval;
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// ... // interval.Extend(); // at time x
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// ...
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// interval.Extend(); // at time y
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// ...
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// interval.Extend(); // at time u
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// ...
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// interval.Extend(z); // at time v
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// ...
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// if (!interval.Empty()) {
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// int64_t active_time = interval.Length(); // returns (u - x)
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// }
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class TimeInterval {
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public:
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TimeInterval();
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~TimeInterval();
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// Extend the interval with the current time.
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void Extend();
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// Extend the interval with a given time.
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void Extend(int64_t time);
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// Take the convex hull with another interval.
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void Extend(const TimeInterval& other_interval);
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// True iff Extend has never been called.
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bool Empty() const;
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// Returns the time between the first and the last tick, in milliseconds.
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int64_t Length() const;
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private:
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struct Interval {
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Interval(int64_t first, int64_t last);
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int64_t first, last;
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};
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rtc::Optional<Interval> interval_;
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};
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} // namespace webrtc
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#endif // AUDIO_TIME_INTERVAL_H_
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