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MainScheduler.kt
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MainScheduler.kt
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package com.badoo.reaktive.scheduler
import com.badoo.reaktive.disposable.CompositeDisposable
import com.badoo.reaktive.disposable.minusAssign
import com.badoo.reaktive.disposable.plusAssign
import com.badoo.reaktive.utils.coerceAtLeastZero
import kotlin.time.Duration
internal class MainScheduler : Scheduler {
private val disposables = CompositeDisposable()
override fun newExecutor(): Scheduler.Executor = MainThreadExecutor(disposables)
override fun destroy() = disposables.dispose()
private class MainThreadExecutor(
private val disposables: CompositeDisposable,
) : Scheduler.Executor {
private var _isDisposed = false
private val timeoutIds = mutableSetOf<Int>()
private val intervalIds = mutableSetOf<Int>()
init {
disposables += this
}
override fun submit(delay: Duration, period: Duration, task: () -> Unit) {
if (isDisposed) {
return
}
if (period.isInfinite()) {
setTimeout(delay = delay, task = task)
return
}
if (delay.isPositive()) {
setTimeout(delay = delay) {
setInterval(period = period, task)
}
return
}
setInterval(period = period, task)
}
private fun setTimeout(delay: Duration, task: () -> Unit) {
var id: Int? = null
id = jsSetTimeout(
{
timeoutIds.remove(id)
task()
},
delay.coerceAtLeastZero().inWholeMilliseconds.toInt(),
)
timeoutIds.add(id)
}
private fun setInterval(period: Duration, task: () -> Unit) {
var id: Int? = null
id = jsSetInterval(
{
intervalIds.remove(id)
task()
},
period.coerceAtLeastZero().inWholeMilliseconds.toInt(),
)
intervalIds.add(id)
}
override fun cancel() {
timeoutIds.forEach { jsClearTimeout(it) }
intervalIds.forEach { jsClearInterval(it) }
}
override val isDisposed: Boolean
get() = _isDisposed
override fun dispose() {
cancel()
_isDisposed = true
disposables -= this
}
}
}