trait
Signal extends AnyRef
Abstract Value Members
-
abstract
def
notify(cb: ⇒ Unit): Unit
Concrete Value Members
-
final
def
!=(arg0: AnyRef): Boolean
-
final
def
!=(arg0: Any): Boolean
-
final
def
##(): Int
-
final
def
==(arg0: AnyRef): Boolean
-
final
def
==(arg0: Any): Boolean
-
final
def
asInstanceOf[T0]: T0
-
def
clone(): AnyRef
-
final
def
eq(arg0: AnyRef): Boolean
-
def
equals(arg0: Any): Boolean
-
def
finalize(): Unit
-
final
def
getClass(): Class[_]
-
def
hashCode(): Int
-
final
def
isInstanceOf[T0]: Boolean
-
final
def
ne(arg0: AnyRef): Boolean
-
final
def
notify(): Unit
-
final
def
notifyAll(): Unit
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
-
def
toString(): String
-
final
def
wait(): Unit
-
final
def
wait(arg0: Long, arg1: Int): Unit
-
final
def
wait(arg0: Long): Unit
Inherited from AnyRef
Inherited from Any
A
Signal
is a callback mechanism used by both Source and Sink to manage forward/back-pressure. In both cases it is returned when a requested operation cannot immediately complete, but can at a later point in time. For example, when pulling from a Source, if no item is immediately available, a signal is returned that will be triggered when an item is available to pull.Signals are multi-listener, so that multiple consumers can attach callbacks to a single listener. Callbacks are fired in the order they are queued, and generally conditions for triggering a signal are re-checked for each listener (so that, for example, if one item is pushed to an empty Source, only one listener is signaled).