Functional Kotlin

Coroutine context

Coroutines always run in a context. All coroutine builders have context specified by default, and that context is available through the value coroutineContext, inside the coroutine body:

import kotlinx.coroutines.experimental.*fun main(args: Array<String>) = runBlocking {   println("run blocking coroutineContext = $coroutineContext")   println("coroutineContext[Job] = ${coroutineContext[Job]}")   println(Thread.currentThread().name)   println("-----")   val jobs = listOf(         launch {            println("launch coroutineContext = $coroutineContext")            println("coroutineContext[Job] = ${coroutineContext[Job]}")            println(Thread.currentThread().name)            println("-----")         },         async {            println("async coroutineContext = $coroutineContext")            println("coroutineContext[Job] ...