abstract class MulticastMessage extends Message
Base class to define a new message with multiple destination processes (multicast).
Each new message must be a subclass of UnicastMessage, of BroadcastMessage, or of MulticastMessage. For a protocols to add information to an existing message, it is necessary to define instead a wrapper message; i.e., a subclass of Wrapper.
Typical declarations of top-level messages:
case class Snapshot(from: PID, to: Set[PID]) extends MulticastMessage case class ViewChange(from: PID, to: Set[PID], viewNum: Long, epochNum: Long) extends MulticastMessage case class Heartbeat(from: PID, to: Set[PID], sentAt: Time, sn: Long) extends MulticastMessage
The fields to and from must be defined. Thus, to work properly, it is essential that new
messages are created with from
and to
arguments as above.
Instantiation of top-level messages:
import neko._ val m1 = Snapshot(me, neighbors) val m2 = ViewChange(me, ALL, myView, myEpoch) val m3 = Heartbeat(me, neighbors, now, seqnum)
Defining actual messages as a case
class is a recommended practice and highly convenient since
it allows for pattern matching without requiring any additional work.
def onReceive = { case Snapshot(from,_) if from < me => // e.g., getting a snapshot from a process with lower id case ViewChange(_,_,view,epoch) if view > currentView => currentView = view // ... }
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- new MulticastMessage()
Abstract Value Members
Concrete Value Members
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final
def
!=(arg0: Any): Boolean
- Definition Classes
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final
def
##(): Int
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def
+(other: String): String
- Implicit
- This member is added by an implicit conversion from MulticastMessage to any2stringadd[MulticastMessage] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
-
def
->[B](y: B): (MulticastMessage, B)
- Implicit
- This member is added by an implicit conversion from MulticastMessage to ArrowAssoc[MulticastMessage] performed by method ArrowAssoc in scala.Predef.
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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- protected[lang]
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- @throws( ... ) @native() @HotSpotIntrinsicCandidate()
-
def
destinations: Set[PID]
The set of destination processes (well, their ID anyways).
The set of destination processes (well, their ID anyways).
- returns
the set of destination processes.
- Definition Classes
- MulticastMessage → Message
-
def
ensuring(cond: (MulticastMessage) ⇒ Boolean, msg: ⇒ Any): MulticastMessage
- Implicit
- This member is added by an implicit conversion from MulticastMessage to Ensuring[MulticastMessage] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: (MulticastMessage) ⇒ Boolean): MulticastMessage
- Implicit
- This member is added by an implicit conversion from MulticastMessage to Ensuring[MulticastMessage] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: Boolean, msg: ⇒ Any): MulticastMessage
- Implicit
- This member is added by an implicit conversion from MulticastMessage to Ensuring[MulticastMessage] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: Boolean): MulticastMessage
- Implicit
- This member is added by an implicit conversion from MulticastMessage to Ensuring[MulticastMessage] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
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final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
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-
def
equals(arg0: Any): Boolean
- Definition Classes
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def
formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from MulticastMessage to StringFormat[MulticastMessage] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
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- @inline()
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final
def
getClass(): Class[_]
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- @native() @HotSpotIntrinsicCandidate()
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def
hashCode(): Int
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-
val
id: MessageID
The identifier of the message.
The identifier of the message.
- returns
the identifier of the message
- Definition Classes
- MulticastMessage → Message → Event
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final
def
isInstanceOf[T0]: Boolean
- Definition Classes
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final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
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final
def
notify(): Unit
- Definition Classes
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- @native() @HotSpotIntrinsicCandidate()
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final
def
notifyAll(): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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- lazy val toPrettyString: String
-
def
toString(): String
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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final
def
wait(): Unit
- Definition Classes
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- @throws( ... )
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def
→[B](y: B): (MulticastMessage, B)
- Implicit
- This member is added by an implicit conversion from MulticastMessage to ArrowAssoc[MulticastMessage] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc