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/*
* Copyright 2016-2018 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.supervision01
import kotlinx.coroutines.*
fun main() = runBlocking {
val supervisor = SupervisorJob()
with(CoroutineScope(coroutineContext + supervisor)) {
// launch the first child -- its exception is ignored for this example (don't do this in practice!)
val firstChild = launch(CoroutineExceptionHandler { _, _ -> }) {
println("First child is failing")
throw AssertionError("First child is cancelled")
}
// launch the second child
val secondChild = launch {
firstChild.join()
// Cancellation of the first child is not propagated to the second child
println("First child is cancelled: ${firstChild.isCancelled}, but second one is still active")
try {
delay(Long.MAX_VALUE)
} finally {
// But cancellation of the supervisor is propagated
println("Second child is cancelled because supervisor is cancelled")
}
}
// wait until the first child fails & completes
firstChild.join()
println("Cancelling supervisor")
supervisor.cancel()
secondChild.join()
}
}
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