drcl.inet.core
Class sIGMP

java.lang.Object
  |
  +--drcl.DrclObj
        |
        +--drcl.comp.Component
              |
              +--drcl.net.Module
                    |
                    +--drcl.inet.Protocol
                          |
                          +--drcl.inet.core.sIGMP

All Implemented Interfaces:

java.lang.Cloneable, InetConstants, ObjectDuplicable, java.io.Serializable

public class sIGMP

extends Protocol

A very preliminary IGMP protocol. This component only implements REPORT and LEAVE. REPORT retransmission and QUERY are not implemented. And this component can be used in both a host and a router.

Contracts:

• .service_id@: IDLookup and IDConfig as client.
• .mcast_service@ (for host): IDConfig as reactor.
• .mcastHost@ (for router): McastHostEvent as initiator.
• down@: PktSending and PktDelivery as client.

Reference:

• RFC2236.

Version:

1.0, 7/9/2001

Author:

Hung-ying Tyan

See Also:

Serialized Form

Inner Class Summary

static class

sIGMP.IGMPPacket

Inner classes inherited from class drcl.comp.Component

Component.LockPack

Field Summary

static int	IGMP_MESSAGE_SIZE IGMP message size (RFC2236).
static int	LEAVE Leave Group message type (RFC2236).
static int	QUERY Membership Query message type (RFC2236).
static int	REPORT Version 2 Membership Report message type (RFC2236).
static int	REPORT1 Version 1 Membership Report message type (RFC2236).

Fields inherited from class drcl.net.Module

address, downPort, PortGroup_DOWN, PortGroup_UP, timerPort, upPort

Fields inherited from class drcl.comp.Component

FLAG_COMPONENT_NOTIFICATION, FLAG_DEBUG_ENABLED, FLAG_DIRECT_OUTPUT_ENABLED, FLAG_ENABLED, FLAG_ERROR_ENABLED, FLAG_EVENT_ENABLED, FLAG_GARBAGE_DISPLAY_ENABLED, FLAG_GARBAGE_ENABLED, FLAG_PORT_NOTIFICATION, FLAG_STARTED, FLAG_STOPPED, FLAG_TRACE_ENABLED, FLAG_UNDEFINED_START, id, infoPort, lockHead, name, parent, PortGroup_DEFAULT_GROUP, PortGroup_EVENT, PortGroup_SERVICE, Root, Trace_DATA, Trace_SEND

Fields inherited from interface drcl.inet.InetConstants

BYTE_MODE, DEFAULT_BANDWIDTH, DEFAULT_BUFFER_SIZE, DEFAULT_MTU, EVENT_ID_CHANGED_PORT_ID, EVENT_IDENTITY_ADDED, EVENT_IDENTITY_REMOVED, EVENT_IF_NEIGHBOR_DOWN, EVENT_IF_NEIGHBOR_UP, EVENT_IF_PORT_ID, EVENT_MCAST_HOST_PORT_ID, EVENT_PKT_ARRIVAL, EVENT_PKT_ARRIVAL_PORT_ID, EVENT_RT_ENTRY_ADDED, EVENT_RT_ENTRY_MODIFIED, EVENT_RT_ENTRY_REMOVED, EVENT_RT_MCAST_CHANGED_PORT_ID, EVENT_RT_UCAST_CHANGED_PORT_ID, EVENT_VIF_NEIGHBOR_DOWN, EVENT_VIF_NEIGHBOR_UP, EVENT_VIF_PORT_ID, HOST_ENTRY_EXT, ID_CSL, MCAST_QUERY_PORT_ID, PACKET_MODE, PID_DV, PID_DVMRP, PID_HELLO, PID_IGMP, PID_OSPF, PID_RSVP, PID_TCP, PID_UDP, SERVICE_CONFIGSW_PORT_ID, SERVICE_ID_PORT_ID, SERVICE_IF_PORT_ID, SERVICE_MCAST_PORT_ID, SERVICE_RT_PORT_ID, UCAST_QUERY_PORT_ID

Constructor Summary

sIGMP()

sIGMP(java.lang.String id_)

Method Summary

protected void	dataArriveAtDownPort(java.lang.Object msg_, Port downPort_) The handler invoked when a packet arrives at a "down" port.
void	duplicate(java.lang.Object source_) Duplicates the content of source_, including ID, name, child components and connections among them, to this component.
java.lang.String	getName() Returns the (informational) name of the component.
java.lang.String	info() Provide multicast group membership information on each interface.
void	join(long group_) Makes this host joins the multicast group.
void	leave(long group_) Makes this host leaves the multicast group.
protected void	process(java.lang.Object data_, Port inPort_) This method classifies inPort_ and delegates process of data to the appropriate handler.
protected void	processOther(java.lang.Object data_, Port inPort_) The handler invoked when a packet arrived at a port other than the "up", "down" and timer ports.
void	reset() Resets the component for being used anew.

Methods inherited from class drcl.inet.Protocol

broadcast, broadcast, broadcast, broadcast, broadcast, broadcast, createConfigSwitchPort, createIDChangedEventPort, createIDServicePort, createIFEventPort, createIFQueryPort, createMcastHostEventPort, createMcastQueryPort, createMulticastRTChangedEventPort, createPktArrivalEventPort, createRTServicePort, createUcastQueryPort, createUnicastRTChangedEventPort, createVIFEventPort, forward, forward, forward, forward, forward, forward, idAddedEventHandler, idRemovedEventHandler, mcastHostJoinEventHandler, mcastHostLeaveEventHandler, mcastQueryHandler, neighborDownEventHandler, neighborUpEventHandler, pktArrivalHandler, rtAddedEventHandler, rtModifiedEventHandler, rtRemovedEventHandler, ucastQueryHandler, vNeighborDownEventHandler, vNeighborUpEventHandler

Methods inherited from class drcl.net.Module

cancelTimeout, dataArriveAtUpPort, deliver, getAddress, removeDefaultDownPort, removeDefaultUpPort, removeTimerPort, setAddress, setTimeout, setTimeoutAt, timeout

Methods inherited from class drcl.comp.Component

_resume, _start, _stop, addComponent, addComponent, addEventPort, addEventPort, addForkPort, addPort, addPort, addPort, addPort, addPort, addPort, addPort, addPort, addServerPort, addServerPort, cancelFork, componentAdded, componentRemoved, connect, containsComponent, containsComponent, containsPort, debug, disconnectAll, disconnectAllPeers, disconnectAllPorts, drop, drop, error, error, expose, exposeEventPorts, exposePort, exposePort, exposePort, exposePort, exposePort, findAvailable, findAvailable, findAvailable, finishing, fork, forkAt, getAllComponents, getAllPorts, getAllPorts, getAllWiresInside, getAllWiresInsideOut, getAllWiresOut, getComponent, getComponentFlag, getComponentFlag, getContract, getContractHT, getContractHT, getDebugFlagsInBinary, getDebugLevelNames, getForkManager, getID, getParent, getPort, getPort, getRoot, getRuntime, getTime, iduplicate, isAncestorOf, isComponentNotificationEnabled, isContainer, isDebugEnabled, isDebugEnabledAt, isDirectOutputEnabled, isEnabled, isErrorNoticeEnabled, isEventExportEnabled, isGarbageDisplayEnabled, isGarbageEnabled, isPortNotificationEnabled, isPortRemovable, isStarted, isStopped, isTraceEnabled, lock, notify, notifyAll, operate, portAdded, portRemoved, reboot, removeAll, removeAllComponents, removeAllPorts, removeAllPorts, removeComponent, removeComponent, removePort, removePort, removePort, resume, run, sduplicate, send, sendAt, setComponentFlag, setComponentFlag, setComponentNotificationEnabled, setContract, setDebugEnabled, setDebugEnabled, setDebugEnabledAt, setDebugEnabledAt, setDebugEnabledAt, setDirectOutputEnabled, setDirectOutputEnabled, setEnabled, setErrorNoticeEnabled, setErrorNoticeEnabled, setEventExportEnabled, setEventExportEnabled, setExecutionBoundary, setGarbageDisplayEnabled, setGarbageDisplayEnabled, setGarbageEnabled, setGarbageEnabled, setID, setID, setName, setPort, setPort, setPortNotificationEnabled, setPortRemovable, setRuntime, setTraceEnabled, setTraceEnabled, sleepFor, sleepUntil, stop, toString, unexpose, unlock, useLocalForkManager, useLocalForkManager, wait

Methods inherited from class drcl.DrclObj

clone

Methods inherited from class java.lang.Object

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

Field Detail

QUERY

public static final int QUERY

Membership Query message type (RFC2236).

REPORT

public static final int REPORT

Version 2 Membership Report message type (RFC2236).

LEAVE

public static final int LEAVE

Leave Group message type (RFC2236).

REPORT1

public static final int REPORT1

Version 1 Membership Report message type (RFC2236).

IGMP_MESSAGE_SIZE

public static final int IGMP_MESSAGE_SIZE

IGMP message size (RFC2236).

Constructor Detail

sIGMP

public sIGMP()

sIGMP

public sIGMP(java.lang.String id_)

Method Detail

getName

public java.lang.String getName()

Description copied from class: Component

Returns the (informational) name of the component.

Overrides:

getName in class Component

duplicate

public void duplicate(java.lang.Object source_)

Description copied from class: Component

Duplicates the content of source_, including ID, name, child components and connections among them, to this component. Subclasses need to override this method to copy its own variables.

Overrides:

duplicate in class Protocol

info

public java.lang.String info()

Provide multicast group membership information on each interface.

Overrides:

info in class Component

reset

public void reset()

Description copied from class: Component

Resets the component for being used anew. All the internal variables must be set to the initial state. All the ports and child components are reset as well.

Overrides:

reset in class Component

process

protected void process(java.lang.Object data_,
                       Port inPort_)

Description copied from class: Module

This method classifies inPort_ and delegates process of data to the appropriate handler. If a subclass decides to override this method, then it should call super.process(data_, inPort_) to make those handlers effective.

Overrides:

process in class Module

Following copied from class: drcl.net.Module

See Also:

Module.dataArriveAtUpPort(Object, drcl.comp.Port), Module.dataArriveAtDownPort(Object, drcl.comp.Port), Module.processOther(Object, drcl.comp.Port)

processOther

protected void processOther(java.lang.Object data_,
                            Port inPort_)

Description copied from class: Module

The handler invoked when a packet arrived at a port other than the "up", "down" and timer ports.

Overrides:

processOther in class Protocol

join

public void join(long group_)

Makes this host joins the multicast group.

leave

public void leave(long group_)

Makes this host leaves the multicast group.

dataArriveAtDownPort

protected void dataArriveAtDownPort(java.lang.Object msg_,
                                    Port downPort_)

Description copied from class: Module

The handler invoked when a packet arrives at a "down" port. Subclasses should override it to handle such an event.

Overrides:

dataArriveAtDownPort in class Module