Learning Concurrency in Kotlin

Confining coroutines to a single thread

Let's modify the example at the beginning of this chapter so that asyncIncrement() runs confined to a single thread:

var counter = 0val context = newSingleThreadContext("counter")fun asyncIncrement(by: Int) = async(context) {    for (i in 0 until by) {        counter++    }}

Now, regardless of how many times asyncIncrement() is called, it will run on a single thread, meaning that all the changes made to counter will be sequential.