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light parallel failed attempt

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minjaesong
2019-06-05 21:04:01 +09:00
parent 0216e814a6
commit aad88710ed
4 changed files with 55 additions and 16 deletions
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21
src/net/torvald/terrarum/concurrent/ThreadParallel.kt
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@@ -1,6 +1,7 @@
package net.torvald.terrarum.concurrent
import net.torvald.terrarum.Terrarum
import kotlin.math.absoluteValue
typealias RunnableFun = () -> Unit
/** Int: index of the processing core */
@@ -12,7 +13,7 @@ typealias ThreadableFun = (Int) -> Unit
object ThreadParallel {
val threadCount = Terrarum.THREADS // modify this to your taste
private val pool: Array<Thread?> = Array(threadCount, { null })
private val pool: Array<Thread?> = Array(threadCount) { null }
/**
* Map Runnable object to certain index of the thread pool.
@@ -189,13 +190,19 @@ object ParallelUtils {
}
}
fun IntRange.sliceEvenly(slices: Int): List<IntRange> {
if (this.step != 1) throw UnsupportedOperationException("Sorry, step != 1")
val size = this.last - this.first + 1f
fun IntProgression.sliceEvenly(slices: Int): List<IntProgression> {
if (this.step.absoluteValue != 1) throw UnsupportedOperationException("Sorry, step != +1/-1")
val size = (this.last - this.first).absoluteValue + (this.step.toFloat()).absoluteValue
return (0 until slices).map {
size.div(slices).times(it).roundInt() until
size.div(slices).times(it + 1).roundInt()
// println(size)
return if (this.first < this.last) (0 until slices).map {
this.first + size.div(slices).times(it).roundInt() ..
this.first + size.div(slices).times(it + 1).roundInt() - 1
}
else (0 until slices).map {
this.first - size.div(slices).times(it).roundInt() downTo
this.first - size.div(slices).times(it + 1).roundInt() + 1
}
}