A C D G H I L M N P R S T W

A

ACK_TYPE - Static variable in class Packet

Packet.ACK_TYPE is the type for acknowledgement packets.

add(int) - Method in class IntQueue

q.add(i) adds i to q.

add(Packet) - Method in class PacketQueue

q.add(i) adds i to q.

AlternatingBitProtocol - Class in <Unnamed>

An AlternatingBitProtocol implements the RDTProtocol interface using an alternating bit algorithm.

AlternatingBitProtocol() - Constructor for class AlternatingBitProtocol

C

CLOSE_TYPE - Static variable in class Packet

Packet.CLOSE_TYPE is the type for packets that close a connection.

createPacket() - Method in class RDTProtocol

createPacket() returns a new Packet that only requires setting its type, its identification number, and its sequence number before use.

createPacket() - Method in class TCPEntity.Context

cntxt.createPacket() returns a new packet that only requires setting its identification number an sequence number befor use.

createTimer() - Method in class RDTProtocol

createTimer() returns a new Timer that only requires setting its packet before use.

createTimer() - Method in class TCPEntity.Context

cntxt.createTimer() returns a new timer that only requires setting its packet before use.

createTimer(int, TimingTask) - Method in class TimerFactory

tq.createTimer(del, tsk) returns a Timer for use in tq that performs tsk with delay del after invoking start().

D

DATA_TYPE - Static variable in class Packet

Packet.DATA_TYPE is the type for data packets.

disconnect() - Method in class TCPEntity

tcpe.disconnect() is invoked to get tcpe to disconnect from its communication partner.

doInit() - Method in class AlternatingBitProtocol

rdtp.doInit() is invoked to perform protocol-dependent initialization for this AlternatingBitProtocol.

doInit() - Method in class RDTProtocol

doInit() is invoked to perform protocol-dependent initialization for this RDTProtocol.

doTask(Packet) - Method in interface TimingTask

tsk.doTask() does the work required to perform tsk.

doTest(int[]) - Method in class TimerFactoryTest

G

get() - Method in class IntQueue

q.get() returns the current item of q.

get() - Method in class PacketQueue

q.get() returns the current item of q.

getCopy() - Method in class Packet

pkt.getCopy() returns a clone of pkt.

getCount() - Method in class IntQueue

q.getCount() the number of items in q.

getCount() - Method in class PacketQueue

q.getCount() the number of items in q.

getDestination() - Method in class Packet

pkt.getDestination() returns the destination TCPEntity of pkt.

getIdentificationNumber() - Method in class Packet

pkt.getIdentificationNumber() returns the identification number of pkt.

getName() - Method in class TCPEntity.Context

cntxt.getName() returns the name of the TCPEntity that created this Context.

getPacket() - Method in class RDTTimer

tmr.getPacket() returns the packet that tmr times acknowlegements for.

getReceivedMessage() - Method in class TCPEntity

tcpe.getReceivedMessage() returns the message received by tcpe.

getReliability() - Static method in class Internet

Internet.getReliability() returns the probability that a Packet gets delivered in the Internet.

getRoundTripTime() - Static method in class Internet

Internet.getRoundTripTime() returns the average round-trip time for the Internet.

getSequenceNumber() - Method in class Packet

pkt.getSequenceNumber() returns the sequence number of pkt.

getSource() - Method in class Packet

pkt.getSource() returns the source TCPEntity of pkt.

getType() - Method in class Packet

pkt.getType() returns the type of pkt.

H

handleNewSegment(int) - Method in class AlternatingBitProtocol

handleNewSegment(id) is invoked to handle a new segment with identification number id.

handleNewSegment(int) - Method in class RDTProtocol

rdtp.handleNewSegment(id) is invoked to get rdtp to handle a new segment with identification number id.

handleReceivedAck(Packet) - Method in class AlternatingBitProtocol

rdtp.handleReceivedAck(pkt) is invoked to handle a ACK_TYPE packet received from its TCPEntity's connection partner.

handleReceivedAck(Packet) - Method in class RDTProtocol

rdtp.handleReceivedAck(pkt) is invoked to get rdtp to handle a ACK_TYPE packet received from its TCPEntity's connection partner.

handleReceivedClose(Packet) - Method in class RDTProtocol

rdtp.handleReceivedClose(pkt) is invoked to get rdtp to handle a CLOSE_TYPE packet received from its TCPEntity's connection partner.

handleReceivedData(Packet) - Method in class AlternatingBitProtocol

handleReceivedData(pkt) is invoked to handle a DATA_TYPE packet received from its TCPEntity's connection partner.

handleReceivedData(Packet) - Method in class RDTProtocol

rdtp.handleReceivedData(pkt) is invoked to get rdtp to handle a DATA_TYPE packet received from its TCPEntity's connection partner.

handleReceivedNack(Packet) - Method in class RDTProtocol

rdtp.handleReceivedNack(pkt) is invoked to get rdtp to handle a NACK_TYPE packet received from its TCPEntity's connection partner.

handleTimedOutPacket(Packet) - Method in class AlternatingBitProtocol

rdtp.handleTimedOutPacket(pkt) is invoked to handle a packet acknowledgement timeout for pkt.

handleTimedOutPacket(Packet) - Method in class RDTProtocol

rdtp.handleTimedOutPacket(pkt) is invoked to get rdtp to handle a packet acknowledgement timeout for pkt.

I

initialize(TCPEntity.Context) - Method in class RDTProtocol

rdtp.initialize(cntxt) is invoked when a connection is set up using rdtp.

initiateDisconnect() - Method in class RDTProtocol

rdtp.initiateDisconnect() is invoked to get rdtp to initate a disconnect sequence.

Internet - Class in <Unnamed>

The Internet class provides delivery of Packet objects between TCPEntity objects.

Internet() - Constructor for class Internet

IntQueue - Class in <Unnamed>

A IntQueue holds a sequence of int objects and provides access to them in the order that they were added to the sequence.

IntQueue() - Constructor for class IntQueue

new IntQueue() returns a new, empty queue for ints.

L

log(String) - Static method in class Logger

Logger.log(typ) logs a message of type typ.

log(String, Packet) - Static method in class Logger

Logger.log(typ, pkt) logs a message of type typ about Packet pkt.

Logger - Class in <Unnamed>

The Logger class provides logging for the reliable data transfer simulation.

Logger() - Constructor for class Logger

M

main(String[]) - Static method in class RDTTest

The main program tests an RDTProtocol by constructing two TCPEntities named "S" and "R", setting up a connection between them, and sending segmentCount segments from the "S" to "R".

main(String[]) - Static method in class TimerFactoryTest

N

NACK_TYPE - Static variable in class Packet

Packet.NACK_TYPE is the type for negative acknowledgement packets.

P

Packet - Class in <Unnamed>

A Packet is a protocol data unit used at the interface between a TCPEntity and an Internet.

Packet(TCPEntity, TCPEntity) - Constructor for class Packet

new Packet(src, dest) returns a new Packet.

PacketQueue - Class in <Unnamed>

A PacketQueue holds a sequence of Packet objects and provides access to them in the order that they were added to the sequence.

PacketQueue() - Constructor for class PacketQueue

new PacketQueue() returns a new, empty queue for Packets.

printConfiguration() - Static method in class Internet

Internet.printConfiguration() prints the configuration parameters for the Internet.

println() - Static method in class Logger

Logger.println() adds a blank line to the log.

R

RDTProtocol - Class in <Unnamed>

An RDTProtocol implements a reliable data transfer protocol on behalf of a TCP connection thread in the Transport layer.

RDTProtocol() - Constructor for class RDTProtocol

RDTTest - Class in <Unnamed>

Class RDTTest defines a main method for running the network simulation using an RDTProtocol as a reliable data transfer protocol.

RDTTest() - Constructor for class RDTTest

RDTTimer - Class in <Unnamed>

An RDTTimer schedules a timeout task for a packet to be executed in the future.

RDTTimer() - Constructor for class RDTTimer

reassemble(int) - Method in class RDTProtocol

reassemble(id) sends id to the reassembler.

reassemble(int) - Method in class TCPEntity.Context

cntxt.reassemble(id) sends the segment id to the reassembler of this TCPEntity.

receivePacket(Packet) - Method in class TCPEntity

tcpe.receivePacket(pkt) is invoked to get tcpe to handle a packet from its connection partner.

receiver - Static variable in class RDTTest

remove() - Method in class IntQueue

q.remove() removes the current item of q.

remove() - Method in class PacketQueue

q.remove() removes the current item of q.

run() - Method in class TCPEntity

Do not invoke this method externally - it is automatically invoked at the end of the setUp() method.

S

segmentCount - Static variable in class RDTTest

segmentCount is the number of segments to to send across the connection.

send(Packet) - Static method in class Internet

Internet.send(pkt) attempts delivery of pkt to its destination.

send(Packet) - Method in class RDTProtocol

send(pkt) sends pkt to the receiving end of the connection.

sendData(int) - Method in class TCPEntity

tcpe.sendData(id) sends a new data packet with identification number id from tcpe to its communication partner.

sender - Static variable in class RDTTest

setAcceptingNewSegments(boolean) - Method in class RDTProtocol

setAcceptingNewSegments(acc) informs the TCPEntity whether or not this RDTProtocol is accepting new segments.

setAcceptingNewSegments(boolean) - Method in class TCPEntity.Context

cntxt.setAcceptingNewSegments(ans) allows this TCPEntity to schedule new segment tasks if ans is true.

setIdentificationNumber(int) - Method in class Packet

pkt.setIdentificationNumber(id) sets the identification number of pkt to id.

setPacket(Packet) - Method in class RDTTimer

tmr.setPacket(pkt) sets the packet that tmr times acknowlegements for to pkt.

setPendingAcknowledgements(boolean) - Method in class RDTProtocol

setPendingAcknowledgements(pa) informs the TCPEntity whether or not this RDTProtocol has packets that have been sent but not yet acknowledged.

setPendingAcknowledgements(boolean) - Method in class TCPEntity.Context

cntxt.setPendingAcknowledgements(pa) notifies this TCPEntity that its protocol has packets that have been sent but not yet acknowledged.

setReliability(double) - Static method in class Internet

Internet.setReliability(rel) sets the probability that a Packet gets delivered in the Internet to rel.

setRoundTripTimes(int, int) - Static method in class Internet

Internet.setRoundTripTimes(min, max) sets the minimum and maximum round-trip time for the Internet to min and max.

setSeed(long) - Static method in class Internet

Internet.setSeed(sd) sets the seed for the random number generator used in the Internet to sd.

setSequenceNumber(int) - Method in class Packet

pkt.setSequenceNumber(seq) sets the sequence number of pkt to seq.

setType(String) - Method in class Packet

pkt.setType(typ) sets the type of pkt to typ.

setUp(TCPEntity, RDTProtocol) - Method in class TCPEntity

tcpe.setUp(prtnr, proto) sets up tcpe for communication with prtnr using the reliable data transfer protocol proto.

start() - Static method in class Logger

Logger.start() initializes Logger.

start() - Method in class RDTTimer

tmr.start() sets the scheduling time for tmr to the current time plus tmr's delay.

start(long) - Method in class RDTTimer

tmr.start(del) sets the scheduling time for tmr to the current time plus del.

start() - Method in class TimerFactory.Timer

tmr.start() sets the scheduled time for tmr's task to the current time plus tmr's delay.

start(long) - Method in class TimerFactory.Timer

tmr.start(del) sets the scheduled time for tmr's task to the current time plus del.

stop() - Method in class RDTTimer

tmr.stop() cancels tmr's scheduling time.

stop() - Method in class TimerFactory.Timer

tmr.stop() puts tmr in the stopped state.

T

TCPEntity - Class in <Unnamed>

A TCPEntity represents a TCP connection thread in the Transport layer.

TCPEntity(String) - Constructor for class TCPEntity

new TCPEntity(nm) returns a new TCPEntity named nm.

TCPEntity.Context - Class in <Unnamed>

A Context is created by a TCPEntity and passed to its RDTProtocol during set up of the TCPEntity.

TCPEntity.Context() - Constructor for class TCPEntity.Context

terminate() - Method in class RDTProtocol

terminate() terminates the thread used by this RDTProtocol.

terminate() - Method in class TCPEntity.Context

cntxt.terminate() terminates the execution of the thread created by this TCPEntity.

testProtocol() - Static method in class RDTTest

TimerFactory - Class in <Unnamed>

A TimerFactory is a factory for RDTTimer objects.

TimerFactory(String) - Constructor for class TimerFactory

TimerFactory(nm) returns an empty TimerFactory with name nm.

TimerFactory.Timer - Class in <Unnamed>

A TimerFactory.Timer times tasks that need to be performed at a later time.

TimerFactory.Timer(long, TimingTask) - Constructor for class TimerFactory.Timer

new Timer(del, tsk) returns a new Timer that performs task tsk.

TimerFactoryTest - Class in <Unnamed>

TimerFactoryTest() - Constructor for class TimerFactoryTest

TimingTask - Interface in <Unnamed>

A TimingTask represents a task that needs to be performed at a later time with a packet.

toString() - Method in class Packet

pkt.toString() returns a String describing pkt.

toString() - Method in class RDTProtocol

rdtp.toString() returns the name of rdtp, which is derived from its TCPEntity's name.

toString() - Method in class TCPEntity

tcpe.toString() returns the name of tcpe.

toString() - Method in class TimerFactory.Timer

tmr.toString() returns a String of the form name"-Timer-"id where name is the name of the TimerFactory that created tmr and id is the identification number of tmr.

toString() - Method in class TimerFactory

tq.toString() returns the name of tq.

W

waitUntilStopped() - Method in class TimerFactory

tq.waitUntilStopped() blocks until all timers are stopped.

A C D G H I L M N P R S T W