edu.utah.janos.apps.ping
Class PingFlow

java.lang.Object
  |
  +--edu.utah.janos.nodeos.FlowRun
        |
        +--edu.utah.janos.apps.ping.PingFlow

public class PingFlow

extends FlowRun

implements DeliverFunc

A flow implementation of `ping'.

Constructor Summary

PingFlow()

Method Summary

void	receive(BufferHandle bh, int payloadOffset) Invoked once for each packet that is received.
protected void	run(Flow flow, java.lang.String[] args, edu.utah.janosvm.kit.comm.commspace.CommSpaceHandle commSpaceHandle) Invoked as the initial entrypoint in a new flow.

Methods inherited from class java.lang.Object

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

Constructor Detail

PingFlow

public PingFlow()

Method Detail

run

protected void run(Flow flow,
                   java.lang.String[] args,
                   edu.utah.janosvm.kit.comm.commspace.CommSpaceHandle commSpaceHandle)

Description copied from class: FlowRun

Invoked as the initial entrypoint in a new flow. The flow parameter is a parameter is the new flow object, the args array contains "command line" arguments to the new flow. The CommSpaceHandle provides a communication link with the parent flow (if the parent flow provided one).

Overrides:

run in class FlowRun

Tags copied from class: FlowRun

Parameters:

flow - the new flow and the current flow

args - whatever "command line" arguments the creator passed.

csh - handle on a parent's CommSpace

receive

public void receive(BufferHandle bh,
                    int payloadOffset)

Description copied from interface: DeliverFunc

Invoked once for each packet that is received. The "payloadOffset" is defined as the first byte of the packet that wasn't used to match the demultiplexKey.

XXX why does this throw IOException?

Specified by:

receive in interface DeliverFunc

Tags copied from interface: DeliverFunc

Parameters:

packet - the packet that was recieved.

payloadOffset - the integer returned from the DemultiplexKey.matches() function.