| /* |
| * 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.experimental.guide.channel04 |
| |
| import kotlinx.coroutines.experimental.* |
| import kotlinx.coroutines.experimental.channels.* |
| |
| fun CoroutineScope.produceNumbers() = produce<Int> { |
| var x = 1 |
| while (true) send(x++) // infinite stream of integers starting from 1 |
| } |
| |
| fun CoroutineScope.square(numbers: ReceiveChannel<Int>) = produce<Int> { |
| for (x in numbers) send(x * x) |
| } |
| |
| fun main(args: Array<String>) = runBlocking<Unit> { |
| val numbers = produceNumbers() // produces integers from 1 and on |
| val squares = square(numbers) // squares integers |
| for (i in 1..5) println(squares.receive()) // print first five |
| println("Done!") // we are done |
| coroutineContext.cancelChildren() // cancel children coroutines |
| } |