| /* |
| * Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| */ |
| |
| // This file was automatically generated from shared-mutable-state-and-concurrency.md by Knit tool. Do not edit. |
| package kotlinx.coroutines.guide.exampleSync03 |
| |
| import kotlinx.coroutines.* |
| import java.util.concurrent.atomic.* |
| import kotlin.system.* |
| |
| suspend fun massiveRun(action: suspend () -> Unit) { |
| val n = 100 // number of coroutines to launch |
| val k = 1000 // times an action is repeated by each coroutine |
| val time = measureTimeMillis { |
| coroutineScope { // scope for coroutines |
| repeat(n) { |
| launch { |
| repeat(k) { action() } |
| } |
| } |
| } |
| } |
| println("Completed ${n * k} actions in $time ms") |
| } |
| |
| var counter = AtomicInteger() |
| |
| fun main() = runBlocking { |
| withContext(Dispatchers.Default) { |
| massiveRun { |
| counter.incrementAndGet() |
| } |
| } |
| println("Counter = $counter") |
| } |