ns3::CidFactory Class Reference

This class is used exclusively by the BS to allocate CIDs to new connections. More...

#include "cid-factory.h"

Collaboration diagram for ns3::CidFactory:

Public Member Functions
	CidFactory (void)
	Create a cid factory with a default value for m of 0x5500. More...
Cid	Allocate (enum Cid::Type type)
	This function returns the next CID for the specified type. More...
Cid	AllocateBasic (void)
	This function returns the next basic CID. More...
Cid	AllocateMulticast (void)
	This function returns the next Multicast CID. More...
Cid	AllocatePrimary (void)
	This function returns the next primary basic CID. More...
Cid	AllocateTransportOrSecondary (void)
	This function returns the next Transport (or Secondary) CID. More...
void	FreeCid (Cid cid)
	Notify the factory that the connection associated to this cid has been killed and that this cid can be reused. More...
bool	IsBasic (Cid cid) const
	This function determines if the CID is basic. More...
bool	IsPrimary (Cid cid) const
	This function determines if the CID is primary. More...
bool	IsTransport (Cid cid) const
	This function determines if the CID is a transport. More...

Private Attributes
uint16_t	m_basicIdentifier
	basic identifier More...
uint16_t	m_m
	m More...
uint16_t	m_multicastPollingIdentifier
	multicast polling identifier More...
uint16_t	m_primaryIdentifier
	primary identifier More...
uint16_t	m_transportOrSecondaryIdentifier
	transport or secondary identifier More...

Detailed Description

This class is used exclusively by the BS to allocate CIDs to new connections.

This class uses the definitions from Table 345 in ieee-802.16-2004 to allocate cids in different integer ranges according to their type. The relative allocation of the ranges is controlled by the parameter 'm' introduced in the above-mentionned table.

Note: The current implementation merely allocates cids sequentially from the start of the allowed range. A proper implementation would be able to recycle cids from previous dead connections and should instead look at a bitmap of free cids. Some other day :)

Definition at line 45 of file cid-factory.h.

Constructor & Destructor Documentation

CidFactory()

ns3::CidFactory::CidFactory

(

void

)

Create a cid factory with a default value for m of 0x5500.

Definition at line 30 of file cid-factory.cc.

Member Function Documentation

Allocate()

Cid ns3::CidFactory::Allocate

(

enum Cid::Type

type

)

This function returns the next CID for the specified type.

Parameters

type

CID type

Returns

the next CID.

Definition at line 74 of file cid-factory.cc.

References AllocateBasic(), AllocateMulticast(), AllocatePrimary(), AllocateTransportOrSecondary(), ns3::Cid::BASIC, ns3::Cid::BROADCAST, ns3::Cid::Broadcast(), ns3::Cid::INITIAL_RANGING, ns3::Cid::InitialRanging(), ns3::Cid::MULTICAST, NS_FATAL_ERROR, ns3::Cid::PADDING, ns3::Cid::Padding(), ns3::Cid::PRIMARY, and ns3::Cid::TRANSPORT.

Referenced by ns3::ConnectionManager::CreateConnection().

Here is the call graph for this function:

Here is the caller graph for this function:

AllocateBasic()

Cid ns3::CidFactory::AllocateBasic

(

void

)

This function returns the next basic CID.

Returns

the next basic CID.

Definition at line 41 of file cid-factory.cc.

References m_basicIdentifier, m_m, and NS_ASSERT.

Referenced by Allocate().

Here is the caller graph for this function:

AllocateMulticast()

Cid ns3::CidFactory::AllocateMulticast

(

void

)

This function returns the next Multicast CID.

Returns

the next Multicast CID.

Definition at line 65 of file cid-factory.cc.

References m_multicastPollingIdentifier, and NS_ASSERT.

Referenced by Allocate().

Here is the caller graph for this function:

AllocatePrimary()

Cid ns3::CidFactory::AllocatePrimary

(

void

)

This function returns the next primary basic CID.

Returns

the next primary CID.

Definition at line 49 of file cid-factory.cc.

References m_m, m_primaryIdentifier, and NS_ASSERT.

Referenced by Allocate().

Here is the caller graph for this function:

AllocateTransportOrSecondary()

Cid ns3::CidFactory::AllocateTransportOrSecondary

(

void

)

This function returns the next Transport (or Secondary) CID.

Returns

the next Transport (or Secondary) CID.

Definition at line 57 of file cid-factory.cc.

References m_transportOrSecondaryIdentifier, and NS_ASSERT.

Referenced by Allocate(), and ns3::ConnectionManager::CreateConnection().

Here is the caller graph for this function:

FreeCid()

void ns3::CidFactory::FreeCid

(

Cid

cid

)

Notify the factory that the connection associated to this cid has been killed and that this cid can be reused.

Parameters

cid

CID type

Todo:

We need to update the cid bitmap properly here.

Definition at line 119 of file cid-factory.cc.

References NS_FATAL_ERROR.

IsBasic()

bool ns3::CidFactory::IsBasic

(

Cid

cid

)

const

This function determines if the CID is basic.

Parameters

cid

CID type

Returns

true if the CID is basic.

Definition at line 111 of file cid-factory.cc.

References ns3::Cid::m_identifier, and m_m.

Referenced by ns3::BaseStationNetDevice::DoReceive(), and ns3::BaseStationNetDevice::UplinkAllocationEnd().

Here is the caller graph for this function:

IsPrimary()

bool ns3::CidFactory::IsPrimary

(

Cid

cid

)

const

This function determines if the CID is primary.

Parameters

cid

CID type

Returns

true if the CID is primary.

Definition at line 105 of file cid-factory.cc.

References ns3::Cid::m_identifier, and m_m.

Referenced by ns3::BaseStationNetDevice::DoReceive().

Here is the caller graph for this function:

IsTransport()

bool ns3::CidFactory::IsTransport

(

Cid

cid

)

const

This function determines if the CID is a transport.

Parameters

cid

CID type

Returns

true if the CID is a transport.

Definition at line 99 of file cid-factory.cc.

References ns3::Cid::m_identifier, and m_m.

Member Data Documentation

m_basicIdentifier

uint16_t ns3::CidFactory::m_basicIdentifier

private

basic identifier

Definition at line 108 of file cid-factory.h.

Referenced by AllocateBasic().

m_m

uint16_t ns3::CidFactory::m_m

private

m

Definition at line 106 of file cid-factory.h.

Referenced by AllocateBasic(), AllocatePrimary(), IsBasic(), IsPrimary(), and IsTransport().

m_multicastPollingIdentifier

uint16_t ns3::CidFactory::m_multicastPollingIdentifier

private

multicast polling identifier

Definition at line 111 of file cid-factory.h.

Referenced by AllocateMulticast().

m_primaryIdentifier

uint16_t ns3::CidFactory::m_primaryIdentifier

private

primary identifier

Definition at line 109 of file cid-factory.h.

Referenced by AllocatePrimary().

m_transportOrSecondaryIdentifier

uint16_t ns3::CidFactory::m_transportOrSecondaryIdentifier

private

transport or secondary identifier

Definition at line 110 of file cid-factory.h.

Referenced by AllocateTransportOrSecondary().

---

The documentation for this class was generated from the following files:

• src/wimax/model/cid-factory.h
• src/wimax/model/cid-factory.cc