reactive/kotlinx-coroutines-rx2/test/guide/example-reactive-basic-08.kt

/*
 * Copyright 2016-2019 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-reactive.md by Knit tool. Do not edit.
package kotlinx.coroutines.rx2.guide.basic08

import io.reactivex.subjects.*
import kotlinx.coroutines.*
import kotlinx.coroutines.rx2.*
import kotlin.coroutines.*

fun main() = runBlocking<Unit> {
    val subject = BehaviorSubject.create<String>()
    subject.onNext("one")
    subject.onNext("two")
    // now launch a coroutine to print the most recent update
    launch { // use the context of the main thread for a coroutine
        subject.collect { println(it) }
    }
    subject.onNext("three")
    subject.onNext("four")
    yield() // yield the main thread to the launched coroutine <--- HERE
    subject.onComplete() // now complete the subject's sequence to cancel the consumer, too    
}