kotlinx-coroutines-core/src/test/kotlin/guide/example-cancel-02.kt

/*
 * 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.cancel.example02

import kotlinx.coroutines.experimental.*

fun main(args: Array<String>) = runBlocking<Unit> {
    val job = launch(CommonPool) {
        var nextPrintTime = 0L
        var i = 0
        while (true) { // computation loop
            val currentTime = System.currentTimeMillis()
            if (currentTime >= nextPrintTime) {
                println("I'm sleeping ${i++} ...")
                nextPrintTime = currentTime + 500L
            }
        }
    }
    delay(1300L) // delay a bit
    println("main: I'm tired of waiting!")
    job.cancel() // cancels the job
    delay(1300L) // delay a bit to see if it was cancelled....
    println("main: Now I can quit.")
}