interface Scheduler {
  fun isMainThread(): Boolean
  fun runTask(task: () -> (Unit))
  fun runTaskIn(duration: Duration, task: () -> (Unit))
}

Given a really simple scheduler like this that runs on a single main thread. Could someone show me how to create a Dispatcher with Delay and a function:

fun <Return> blocking(block: suspend () -> (Return)): Return

That can be used to block any thread (including the main one) until a coroutine completes. Similar to runBlocking (if the runBlocking internals can somehow be used that would be great but I couldn't see a way)

none of the functions in that interface allow for waiting for a result

How about wrapping above

runTask*

with

suspendCoroutine

and then call it within

runBlocking

?