95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/*
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* Copyright (C) 2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <wtf/Seconds.h>
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#include <wtf/Condition.h>
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#include <wtf/Lock.h>
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#include <wtf/MonotonicTime.h>
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#include <wtf/PrintStream.h>
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#include <wtf/TimeWithDynamicClockType.h>
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#include <wtf/WallTime.h>
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#include <wtf/text/TextStream.h>
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namespace WTF {
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WallTime Seconds::operator+(WallTime other) const
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{
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return other + *this;
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}
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MonotonicTime Seconds::operator+(MonotonicTime other) const
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{
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return other + *this;
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}
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TimeWithDynamicClockType Seconds::operator+(const TimeWithDynamicClockType& other) const
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{
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return other + *this;
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}
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WallTime Seconds::operator-(WallTime other) const
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{
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return WallTime::fromRawSeconds(value() - other.secondsSinceEpoch().value());
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}
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MonotonicTime Seconds::operator-(MonotonicTime other) const
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{
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return MonotonicTime::fromRawSeconds(value() - other.secondsSinceEpoch().value());
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}
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TimeWithDynamicClockType Seconds::operator-(const TimeWithDynamicClockType& other) const
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{
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return other.withSameClockAndRawSeconds(value() - other.secondsSinceEpoch().value());
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}
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void Seconds::dump(PrintStream& out) const
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{
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out.print(m_value, " sec");
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}
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TextStream& operator<<(TextStream& ts, Seconds seconds)
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{
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ts << seconds.value() << "s";
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return ts;
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}
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void sleep(Seconds value)
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{
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// It's very challenging to find portable ways of sleeping for less than a second. On UNIX, you want to
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// use usleep() but it's hard to #include it in a portable way (you'd think it's in unistd.h, but then
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// you'd be wrong on some OSX SDKs). Also, usleep() won't save you on Windows. Hence, bottoming out in
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// lock code, which already solves the sleeping problem, is probably for the best.
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Lock fakeLock;
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Condition fakeCondition;
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Locker fakeLocker { fakeLock };
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fakeCondition.waitFor(fakeLock, value);
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}
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} // namespace WTF
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