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KT-58046 Wrap hrtime array reading into a class

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To achieve nice toString and proper equals/hashCode semantics of ValueTimeMark
This commit is contained in:
Ilya Gorbunov
2023-04-10 18:05:24 +02:00
committed by Space Team
parent 1014434475
commit 0c1afcac67
1 changed files with 16 additions and 9 deletions
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libraries/stdlib/js/src/kotlin/time/MonoTimeSource.kt
+16 -9
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@@ -52,26 +52,33 @@ internal external interface Process {
@SinceKotlin("1.3")
@ExperimentalTime
internal class HrTimeSource(private val process: Process) : DefaultTimeSource {
@Suppress("NOTHING_TO_INLINE")
private class Reading(val components: Array<Double>) {
inline operator fun component1(): Double = components.component1()
inline operator fun component2(): Double = components.component2()
override fun equals(other: Any?): Boolean = other is Reading && this.components contentEquals other.components
override fun hashCode(): Int = components.contentHashCode()
override fun toString(): String = components.contentToString()
}
override fun markNow(): ValueTimeMark =
ValueTimeMark(Reading(process.hrtime()))
override fun markNow(): ValueTimeMark = ValueTimeMark(process.hrtime())
override fun elapsedFrom(timeMark: ValueTimeMark): Duration =
@Suppress("UNCHECKED_CAST")
process.hrtime(timeMark.reading as Array<Double>)
process.hrtime((timeMark.reading as Reading).components)
.let { (seconds, nanos) -> seconds.toDuration(DurationUnit.SECONDS) + nanos.toDuration(DurationUnit.NANOSECONDS) }
@Suppress("UNCHECKED_CAST")
override fun differenceBetween(one: ValueTimeMark, another: ValueTimeMark): Duration {
val (s1, n1) = one.reading as Array<Double>
val (s2, n2) = another.reading as Array<Double>
val (s1, n1) = one.reading as Reading
val (s2, n2) = another.reading as Reading
return (if (s1 == s2 && n1 == n2) Duration.ZERO else (s1 - s2).toDuration(DurationUnit.SECONDS)) + (n1 - n2).toDuration(DurationUnit.NANOSECONDS)
}
override fun adjustReading(timeMark: ValueTimeMark, duration: Duration): ValueTimeMark =
@Suppress("UNCHECKED_CAST")
(timeMark.reading as Array<Double>).let { (seconds, nanos) ->
(timeMark.reading as Reading).let { (seconds, nanos) ->
duration.toComponents { _, addNanos ->
val resultSeconds = sumCheckNaN(seconds + truncate(duration.toDouble(DurationUnit.SECONDS)))
arrayOf<Double>(resultSeconds, if (resultSeconds.isFinite()) nanos + addNanos else 0.0)
Reading(arrayOf(resultSeconds, if (resultSeconds.isFinite()) nanos + addNanos else 0.0))
}
}.let(TimeSource.Monotonic::ValueTimeMark)