Let’s say I have a `CoroutineScope` backed by a multi-thread dispatcher. I also have a `Channel<I...

# coroutines

[zak.taccardi]

Let’s say I have a CoroutineScope backed by a multi-thread dispatcher. I also have a Channel<Int> that needs to receive incoming messages.

val scope = CoroutineScope(Dispatchers.Default)
val channel: Channel<Int> = TODO()

fun onNewInt launch`(newInt: Int) {
  // `newInt` is delivered from outside a coroutine
  // what is the appropriate way to emit to the channel? 
}

I see two possibilities (see code snippet)

Untitled.kt

[zak.taccardi]

vote 1 or 2 for preferred approach

[withoutclass]

Depending on your case of course, but UNLIMITED may not be what you want if you have slow consumers

[withoutclass]

maybe you want 500 items or something, that is if you went with option 2

[octylFractal]

really depends on how you want the channel to operate. if you're aiming for an unlimited back-log, I would vote for 2, as it's more explicit about that. but if you want backpressure, I would set RENDEZVOUS/specific count, and use sendBlocking rather than offer

[gildor]

It's purely depends on semantics which you want

[zak.taccardi]

There's no guarantee on ordering though with scope.launch { }