34 lines
1012 B
C
34 lines
1012 B
C
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/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <chrono>
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namespace facebook::react {
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// `DOMHighResTimeStamp` represents a time value in milliseconds (time point or
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// duration), with sub-millisecond precision.
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// On the Web, the precision can be reduced for security purposes, but that is
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// not necessary in React Native.
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using DOMHighResTimeStamp = double;
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constexpr DOMHighResTimeStamp DOM_HIGH_RES_TIME_STAMP_UNSET = -1.0;
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inline DOMHighResTimeStamp chronoToDOMHighResTimeStamp(
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std::chrono::steady_clock::duration duration) {
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return static_cast<std::chrono::duration<double, std::milli>>(duration)
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.count();
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}
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inline DOMHighResTimeStamp chronoToDOMHighResTimeStamp(
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std::chrono::steady_clock::time_point timePoint) {
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return chronoToDOMHighResTimeStamp(timePoint.time_since_epoch());
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}
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} // namespace facebook::react
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