Roman Elizarov | 1e45960 | 2017-02-27 11:05:17 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-2017 JetBrains s.r.o. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | // This file was automatically generated from coroutines-guide.md by Knit tool. Do not edit. |
| 18 | package guide.sync.example06 |
| 19 | |
| 20 | import kotlinx.coroutines.experimental.* |
| 21 | import kotlin.coroutines.experimental.CoroutineContext |
| 22 | import kotlin.system.measureTimeMillis |
| 23 | import kotlinx.coroutines.experimental.sync.Mutex |
| 24 | |
| 25 | suspend fun massiveRun(context: CoroutineContext, action: suspend () -> Unit) { |
| 26 | val n = 1000 // number of coroutines to launch |
| 27 | val k = 1000 // times an action is repeated by each coroutine |
| 28 | val time = measureTimeMillis { |
| 29 | val jobs = List(n) { |
| 30 | launch(context) { |
| 31 | repeat(k) { action() } |
| 32 | } |
| 33 | } |
| 34 | jobs.forEach { it.join() } |
| 35 | } |
| 36 | println("Completed ${n * k} actions in $time ms") |
| 37 | } |
| 38 | |
| 39 | val mutex = Mutex() |
| 40 | var counter = 0 |
| 41 | |
| 42 | fun main(args: Array<String>) = runBlocking<Unit> { |
| 43 | massiveRun(CommonPool) { |
| 44 | mutex.lock() |
| 45 | try { counter++ } |
| 46 | finally { mutex.unlock() } |
| 47 | } |
| 48 | println("Counter = $counter") |
| 49 | } |