| /* |
| * Copyright 2016-2017 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // This file was automatically generated from coroutines-guide.md by Knit tool. Do not edit. |
| package guide.select.example03 |
| |
| import kotlinx.coroutines.experimental.* |
| import kotlinx.coroutines.experimental.channels.* |
| import kotlinx.coroutines.experimental.selects.* |
| import kotlin.coroutines.experimental.CoroutineContext |
| |
| fun produceNumbers(context: CoroutineContext, side: SendChannel<Int>) = produce<Int>(context) { |
| 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(args: Array<String>) = runBlocking<Unit> { |
| val side = Channel<Int>() // allocate side channel |
| launch(coroutineContext) { // this is a very fast consumer for the side channel |
| side.consumeEach { println("Side channel has $it") } |
| } |
| produceNumbers(coroutineContext, side).consumeEach { |
| println("Consuming $it") |
| delay(250) // let us digest the consumed number properly, do not hurry |
| } |
| println("Done consuming") |
| coroutineContext.cancelChildren() |
| } |