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/*
* Copyright 2016-2018 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.channel05
import kotlinx.coroutines.*
import kotlinx.coroutines.channels.*
fun main() = runBlocking {
//sampleStart
var cur = numbersFrom(2)
for (i in 1..10) {
val prime = cur.receive()
println(prime)
cur = filter(cur, prime)
}
coroutineContext.cancelChildren() // cancel all children to let main finish
//sampleEnd
}
fun CoroutineScope.numbersFrom(start: Int) = produce<Int> {
var x = start
while (true) send(x++) // infinite stream of integers from start
}
fun CoroutineScope.filter(numbers: ReceiveChannel<Int>, prime: Int) = produce<Int> {
for (x in numbers) if (x % prime != 0) send(x)
}
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