| /* |
| * 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.select04 |
| |
| import kotlinx.coroutines.* |
| import kotlinx.coroutines.selects.* |
| import java.util.* |
| |
| fun CoroutineScope.asyncString(time: Int) = async { |
| delay(time.toLong()) |
| "Waited for $time ms" |
| } |
| |
| fun CoroutineScope.asyncStringsList(): List<Deferred<String>> { |
| val random = Random(3) |
| return List(12) { asyncString(random.nextInt(1000)) } |
| } |
| |
| fun main() = runBlocking<Unit> { |
| val list = asyncStringsList() |
| val result = select<String> { |
| list.withIndex().forEach { (index, deferred) -> |
| deferred.onAwait { answer -> |
| "Deferred $index produced answer '$answer'" |
| } |
| } |
| } |
| println(result) |
| val countActive = list.count { it.isActive } |
| println("$countActive coroutines are still active") |
| } |