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/*
* Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
// This file was automatically generated from coroutines-guide.md by Knit tool. Do not edit.
package kotlinx.coroutines.guide.select03
import kotlinx.coroutines.*
import kotlinx.coroutines.channels.*
import kotlinx.coroutines.selects.*
fun CoroutineScope.produceNumbers(side: SendChannel<Int>) = produce<Int> {
for (num in 1..10) { // produce 10 numbers from 1 to 10
delay(100) // every 100 ms
select<Unit> {
onSend(num) {} // Send to the primary channel
side.onSend(num) {} // or to the side channel
}
}
}
fun main() = runBlocking<Unit> {
val side = Channel<Int>() // allocate side channel
launch { // this is a very fast consumer for the side channel
side.consumeEach { println("Side channel has $it") }
}
produceNumbers(side).consumeEach {
println("Consuming $it")
delay(250) // let us digest the consumed number properly, do not hurry
}
println("Done consuming")
coroutineContext.cancelChildren()
}