Anyway, here is a work-around for you: 1. Create a...

# coroutines

[elizarov]

Anyway, here is a work-around for you:
1. Create a buffered channel with n elements of any type. Let's use `Unit`: val chan = Channel<Unit>(n)
2. Put n elements there intially. These are your permits: repeat(n) { chan.offer(Unit) }
3. When you need a permit receive it from the channel: chan.receive()
4. When you done working, send permit back to channel: chan.send(Unit)