Package org.jcsp.lang

Class SharedAltingConnectionClient<T>

java.lang.Object

org.jcsp.lang.Guard

org.jcsp.lang.AltingConnectionClient<T>

org.jcsp.lang.AltingConnectionClientImpl<T>

org.jcsp.lang.SharedAltingConnectionClient<T>

All Implemented Interfaces:

ConnectionClient<T>, SharedConnectionClient<T>

Direct Known Subclasses:

NetSharedAltingConnectionClient

public class SharedAltingConnectionClient<T>
extends AltingConnectionClientImpl<T>
implements SharedConnectionClient<T>

Implements a client end of a Connection which can have multiple client processes.

This object cannot itself be shared between concurrent processes but duplicate objects can be generated that can be used by multiple concurrent processes. This can be achieved using the duplicate() method.

The reply from the server can be ALTed over.

Field Summary

Fields

Modifier and Type	Field	Description
private ConnectionWithSharedAltingClient	parent
private ChannelInput	synchIn
private ChannelOutput	synchOut

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SharedAltingConnectionClient(AltingChannelInput fromServer, ChannelInput synchIn, ChannelOutput openToServer, ChannelOutput reqToServer, SharedChannelOutput synchOut, ChannelOutput backToClient, ConnectionWithSharedAltingClient parent)

Method Summary

Modifier and Type	Method	Description
protected final void	claim()	This claims a lock on the client.
SharedConnectionClient	duplicate()	Returns a SharedConnectionClient object that is a duplicate of the object on which this method is called.
protected final void	release()	This releases a lock on the client.

Methods inherited from class org.jcsp.lang.AltingConnectionClientImpl

isOpen, reply, request

Methods inherited from class org.jcsp.lang.AltingConnectionClient

disable, enable, getAltingChannel, pending, setAltingChannel

Methods inherited from class org.jcsp.lang.Guard

schedule

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jcsp.lang.ConnectionClient

isOpen, reply, request

Field Details

synchIn

private ChannelInput synchIn

synchOut

private ChannelOutput synchOut

parent

private ConnectionWithSharedAltingClient parent

Constructor Details

SharedAltingConnectionClient

protected SharedAltingConnectionClient(AltingChannelInput fromServer,
 ChannelInput synchIn,
 ChannelOutput openToServer,
 ChannelOutput reqToServer,
 SharedChannelOutput synchOut,
 ChannelOutput backToClient,
 ConnectionWithSharedAltingClient parent)

Method Details

claim

protected final void claim()

Description copied from class: AltingConnectionClientImpl

This claims a lock on the client. This implementation does nothing as instances of this class are only meant to be used with One2?Connection objects.

Overrides:

claim in class AltingConnectionClientImpl<T>

release

protected final void release()

Description copied from class: AltingConnectionClientImpl

This releases a lock on the client. This implementation does nothing as instances of this class are only meant to be used with One2?Connection objects.

Overrides:

release in class AltingConnectionClientImpl<T>

duplicate

public SharedConnectionClient duplicate()

Returns a SharedConnectionClient object that is a duplicate of the object on which this method is called.

This allows a process using a SharedAltingConnectionClient object to pass references to the connection client to multiple processes.

The object returned can be cast into a SharedConnectionClient object.

Specified by:

duplicate in interface SharedConnectionClient<T>

Returns:

a duplicate SharedAltingConnectionClient object.