java.lang.isolate
Class OneWayLink_Both

java.lang.Object
  |
  +--java.lang.isolate.Link
        |
        +--java.lang.isolate.OneWayLink
              |
              +--java.lang.isolate.OneWayLink_Both

class OneWayLink_Both

extends OneWayLink

Implementation of a OneWayLink for the case where the same Isolate is both the sender and the receiver.

XXX For a sender-heavy or receiver-heavy link, too many folks are getting woken up on operation.

XXX there is no way for a sender to transmit an object to a waiting reciever without blocking. The sender always waits at least once. Should be relatively easy for the OneWayLink_Both because only a single isolate is involved.

Inner Class Summary

private static class	OneWayLink_Both.LinkMapAccessor Per-isolate mapping of link names to link points.
private static class	OneWayLink_Both.LinkPoint The LinkPoint is the common rendezvous point for different Link objects that all point to the same Link.
private static class	OneWayLink_Both.Timeout

Field Summary

private static OneWayLink_Both.LinkMapAccessor	linkMapAccessor
private OneWayLink_Both.LinkPoint	linkPoint

Fields inherited from class java.lang.isolate.OneWayLink

guidManager, name, receiver, sender

Fields inherited from class java.lang.isolate.Link

typeName

Constructor Summary

(package private)

OneWayLink_Both(Isolate sender, Isolate receiver, java.lang.String name)

Method Summary

void	close()
boolean	isOpen()
private static OneWayLink_Both.LinkPoint	lookupLinkPoint(java.lang.String name)
IsolateMessage	receive(long millis, int nanos)
boolean	send(IsolateMessage lm, long millis, int nanos)

Methods inherited from class java.lang.isolate.OneWayLink

clone, equals, isReceiver, isSender, name, newInstance, receiver, sender, toString

Methods inherited from class java.lang.isolate.Link

newEventLink, newLink, receive, send, tryReceive, trySend

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait, wait0

Field Detail

linkMapAccessor

private static final OneWayLink_Both.LinkMapAccessor linkMapAccessor

linkPoint

private final OneWayLink_Both.LinkPoint linkPoint

Constructor Detail

OneWayLink_Both

OneWayLink_Both(Isolate sender,
                Isolate receiver,
                java.lang.String name)
          throws ClosedLinkException

Method Detail

lookupLinkPoint

private static OneWayLink_Both.LinkPoint lookupLinkPoint(java.lang.String name)

isOpen

public boolean isOpen()

Overrides:

isOpen in class OneWayLink

close

public void close()

Overrides:

close in class OneWayLink

send

public boolean send(IsolateMessage lm,
                    long millis,
                    int nanos)
             throws ClosedLinkException,
                    LinkSerializationException

Overrides:

send in class OneWayLink

receive

public IsolateMessage receive(long millis,
                              int nanos)
                       throws ClosedLinkException

Overrides:

receive in class OneWayLink