IPC

Example

letbroadcast=Broadcast<Bool>()
_ =Task.detached{print(await broadcast.wait())
// prints true
}
_ =Task.detached{print(await broadcast.wait())
// prints true
}await broadcast.dispatch(true)

letcondition=Condition()
_ =Task.detached{await condition.wait()}
_ =Task.detached{await condition.wait()}await condition.notify()