Simple Module FIFOQueue

Package: inet.common.queue
File: src/inet/common/queue/FIFOQueue.ned

This module implements a passive FIFO queue with unlimited buffer space. It can be combined with algorithmic droppers and schedulers to form an IOutputQueue compound module.

The C++ class implements the IQueueAccess and IPassiveQueue interfaces.

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram:

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Used in compound modules:

Name	Type	Description
AFxyQueue	compound module	This is an example queue, that implements one class of the Assured Forwarding PHB group (RFC 2597).
DSQueue2	compound module	Diffserv Queue used in Experiment 2.1 - 2.4.
REDQueue	compound module	(no description)

Parameters:

Name	Type	Default value	Description
queueName	string	"l2queue"	name of the cQueue object, used in the 'q' tag of the display string

Properties:

Name	Value	Description
display	i=block/passiveq

Gates:

Name	Direction	Size	Description
in [ ]	input
out	output

Signals:

Name	Type	Unit
queueLength	long
queueingTime	simtime_t	s
dequeuePk	cPacket
dropPkByQueue	cPacket
rcvdPk	cPacket
enqueuePk	cPacket

Statistics:

Name	Title	Source	Record	Interpolation Mode
queueLength	queue length		max, timeavg, vector	sample-hold
queueingTime	queueing time		histogram, vector	none
dropPk	dropped packets	dropPkByQueue	count, sum(packetBytes), vector(packetBytes)	none
rcvdPk	received packets		count, sum(packetBytes), vector(packetBytes)	none

Source code:

//
// This module implements a passive FIFO queue
// with unlimited buffer space. It can be combined
// with algorithmic droppers and schedulers to form
// an IOutputQueue compound module.
//
// The C++ class implements the IQueueAccess and IPassiveQueue
// interfaces.
//
simple FIFOQueue
{
    parameters:
        string queueName = default("l2queue"); // name of the cQueue object, used in the 'q' tag of the display string
        @display("i=block/passiveq");
        @signal[rcvdPk](type=cPacket);
        @signal[enqueuePk](type=cPacket);
        @signal[dequeuePk](type=cPacket);
        @signal[dropPkByQueue](type=cPacket);
        @signal[queueingTime](type=simtime_t; unit=s);
        @signal[queueLength](type=long);
        @statistic[rcvdPk](title="received packets"; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[dropPk](title="dropped packets"; source=dropPkByQueue; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[queueingTime](title="queueing time"; record=histogram,vector; interpolationmode=none);
        @statistic[queueLength](title="queue length"; record=max,timeavg,vector; interpolationmode=sample-hold);
    gates:
        input in[];
        output out;
}