PriorityScheduler

simple module

This scheduler pulls packets from the first non-empty among its connected packet providers.

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
CompoundPendingQueue	compound module	Implements a prioritized queue system for IEEE 802.11 MAC frames. Uses a classifier to separate incoming packets into three queues: management frames (highest priority), multicast frames (medium priority), and unicast frames (lowest priority). A priority scheduler then selects packets from these queues in order of priority.
DiffservQueue	compound module	This is an example queue that can be used in interfaces of DS core and edge nodes to support the AFxy (RFC 2597) and EF (RFC 3246) PHBs.
DSQueue1	compound module	Diffserv Queue used in Experiment 1.1 - 1.6 and 5.1.
EthernetPreemptingMacLayer	compound module	(no description)
ExampleCompoundPriorityQueue	compound module	(no description)

Used in

Name	Type	Description
PrioritySchedulerTutorialStep	network	(no description)

Extends

Name	Type	Description
PacketSchedulerBase	simple module	Base module for various packet scheduler modules. Derived modules must implement a single packet scheduler function which determines the index of the input gate for the pulled packet.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	"scheduled %p pk (%l)"	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
reverseOrder	bool	false

Properties

Name	Value	Description
class	PriorityScheduler
display	i=block/join

Gates

Name	Direction	Size	Description
in [ ]	input
out	output

Signals

Name	Type	Unit	Description
packetPulled	inet::Packet

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode	Description
packetLengths	packet lengths	packetLength(packetPulled)	sum, histogram, vector	b	none	the statistical value is the length of the scheduled packet
dataRate	data rate	throughput(packetPulled)	vector	bps	linear	the statistical value is the data rate of the scheduled packets
packets	packets	packetPulled	count	pk		the statistical value is the scheduled packet

Source code

//
// This scheduler pulls packets from the first non-empty among its connected
// packet providers.
//
simple PriorityScheduler extends PacketSchedulerBase like IPacketScheduler
{
    parameters:
        @class(PriorityScheduler);
}

File: src/inet/queueing/scheduler/PriorityScheduler.ned