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Provide specialized TimeSource.Monotonic for wasm

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KT-46132
This commit is contained in:
Ilya Gorbunov
2022-02-20 06:31:31 +03:00
committed by Space
parent fede70d0d5
commit f32e0f3cba
1 changed files with 9 additions and 11 deletions
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libraries/stdlib/wasm/src/kotlin/time/TimeSources.kt
+9 -11
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@@ -18,22 +18,20 @@ private external fun dateNow(): Double
@SinceKotlin("1.3") @SinceKotlin("1.3")
@ExperimentalTime @ExperimentalTime
internal actual object MonotonicTimeSource : TimeSource, AbstractDoubleTimeSource(unit = DurationUnit.MILLISECONDS) { internal actual object MonotonicTimeSource : TimeSource {
private val performance: ExternalInterfaceType? = tryGetPerformance() private val performance: ExternalInterfaceType? = tryGetPerformance()
override fun read(): Double = private fun read(): Double =
if (performance != null) getPerformanceNow(performance) else dateNow() if (performance != null) getPerformanceNow(performance) else dateNow()
actual override fun markNow(): DefaultTimeMark = DefaultTimeMark(read())
actual fun elapsedFrom(timeMark: DefaultTimeMark): Duration = (read() - timeMark.reading as Double).milliseconds
actual fun adjustReading(timeMark: DefaultTimeMark, duration: Duration): DefaultTimeMark =
DefaultTimeMark(timeMark.reading as Double + duration.toDouble(DurationUnit.MILLISECONDS))
override fun toString(): String = override fun toString(): String =
if (performance != null) "TimeSource(globalThis.performance.now())" else "TimeSource(Date.now())" if (performance != null) "TimeSource(globalThis.performance.now())" else "TimeSource(Date.now())"
} }
@SinceKotlin("1.3") @Suppress("ACTUAL_WITHOUT_EXPECT") // visibility
@ExperimentalTime internal actual typealias DefaultTimeMarkReading = Double
internal actual object MonotonicTimeSource : TimeSource {
actual override fun markNow(): DefaultTimeMark = TODO("Wasm stdlib: MonotonicTimeSource::markNow")
actual fun elapsedFrom(timeMark: DefaultTimeMark): Duration = TODO("Wasm stdlib: MonotonicTimeSource")
actual fun adjustReading(timeMark: DefaultTimeMark, duration: Duration): DefaultTimeMark = TODO("Wasm stdlib: MonotonicTimeSource")
}
internal actual class DefaultTimeMarkReading // TODO: Long?