simnet
Class SimpleDropPolicy

java.lang.Object
  simnet.DropPolicy
      simnet.SimpleDropPolicy

All Implemented Interfaces:

Pluggable

public class SimpleDropPolicy

extends DropPolicy

implements Pluggable

An example of a trivial drop policy. Note that this early dropper will only drop packets that would have been dropped anyway due to lack of space in the transmission buffer.

Field Summary

protected java.util.Date	last
protected int	packet_count

Fields inherited from class simnet.DropPolicy

qsize

Constructor Summary

SimpleDropPolicy()

Method Summary

boolean	earlyDropPacket(Frame f, int remaining_bytes) Drop the packet if we don't have enough room.
boolean	prePlugout(java.lang.Object replacement) No special cleanup is required.

Methods inherited from class simnet.DropPolicy

finalize, initialize, updateSize

Methods inherited from class java.lang.Object

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

Field Detail

packet_count

protected int packet_count

last

protected java.util.Date last

Constructor Detail

SimpleDropPolicy

public SimpleDropPolicy()

Method Detail

earlyDropPacket

public boolean earlyDropPacket(Frame f,
                               int remaining_bytes)

Drop the packet if we don't have enough room. Note that this is redundant since this is the same criteria that the link will use to drop the packet anyway. That is, this is just here as an example.

Specified by:

earlyDropPacket in class DropPolicy

prePlugout

public boolean prePlugout(java.lang.Object replacement)

No special cleanup is required.

Specified by:

prePlugout in interface Pluggable

Returns:

if this object can now be removed (was the operation sucessful)