Exercise: Understanding context propagation
Fill the gaps in the following code. Both the log and slog functions should print the name of the coroutine they are called from, and message from argument.
suspend fun log(msg: String) {
val name = ___[CoroutineName]?.name
println("[$name] $msg")
}
fun CoroutineScope.slog(msg: String) {
val name = ___[CoroutineName]?.name
println("[$name] $msg")
}
suspend fun main(): Unit = withContext(CoroutineName("Outer")) {
log("Starting") // [___] Starting
launch(CoroutineName("Inner")) {
slog("A") // [___] A
launch {
log("B") // [___] B
}
}
launch {
slog("C") // [___] C
}
GlobalScope.launch {
log("D") // [___] D
}
slog("Ending") // [___] Ending
}
Once you are done with the exercise, you can check your solution here.
