Inheritance diagram for ns3::DcaTxop::Dcf:

Collaboration diagram for ns3::DcaTxop::Dcf:

Public Member Functions
	Dcf (DcaTxop *txop)

virtual bool	IsEdca (void) const

Public Member Functions inherited from ns3::DcfState
	DcfState ()

virtual	~DcfState ()

uint32_t	GetAifsn (void) const
	Return the number of slots that make up an AIFS. More...

uint32_t	GetCw (void) const

uint32_t	GetCwMax (void) const
	Return the maximum congestion window size. More...

uint32_t	GetCwMin (void) const
	Return the minimum congestion window size. More...

Time	GetTxopLimit (void) const
	Return the TXOP limit. More...

bool	IsAccessRequested (void) const

void	ResetCw (void)
	Update the value of the CW variable to take into account a transmission success or a transmission abort (stop transmission of a packet after the maximum number of retransmissions has been reached). More...

void	SetAifsn (uint32_t aifsn)

void	SetCwMax (uint32_t maxCw)
	Set the maximum congestion window size. More...

void	SetCwMin (uint32_t minCw)
	Set the minimum congestion window size. More...

void	SetTxopLimit (Time txopLimit)
	Set the TXOP limit. More...

void	StartBackoffNow (uint32_t nSlots)

void	UpdateFailedCw (void)
	Update the value of the CW variable to take into account a transmission failure. More...

Private Member Functions
virtual void	DoNotifyAccessGranted (void)
	Called by DcfManager to notify a DcfState subclass that access to the medium is granted and can start immediately. More...

virtual void	DoNotifyChannelSwitching (void)
	Called by DcfManager to notify a DcfState subclass that a channel switching occured. More...

virtual void	DoNotifyCollision (void)
	Called by DcfManager to notify a DcfState subclass that a normal collision occured, that is, that the medium was busy when access was requested. More...

virtual void	DoNotifyInternalCollision (void)
	Called by DcfManager to notify a DcfState subclass that an 'internal' collision occured, that is, that the backoff timer of a higher priority DcfState expired at the same time and that access was granted to this higher priority DcfState. More...

virtual void	DoNotifySleep (void)
	Called by DcfManager to notify a DcfState subclass that the device has begun to sleep. More...

virtual void	DoNotifyWakeUp (void)
	Called by DcfManager to notify a DcfState subclass that the device has begun to wake up. More...

Private Attributes
DcaTxop *	m_txop

Detailed Description

Definition at line 44 of file dca-txop.cc.

Constructor & Destructor Documentation

ns3::DcaTxop::Dcf::Dcf ( DcaTxop * txop )

inline

Definition at line 47 of file dca-txop.cc.

Member Function Documentation

virtual void ns3::DcaTxop::Dcf::DoNotifyAccessGranted ( void )

inlineprivatevirtual

Called by DcfManager to notify a DcfState subclass that access to the medium is granted and can start immediately.

Implements ns3::DcfState.

Definition at line 56 of file dca-txop.cc.

References m_txop, and ns3::DcaTxop::NotifyAccessGranted().

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virtual void ns3::DcaTxop::Dcf::DoNotifyChannelSwitching ( void )

inlineprivatevirtual

Called by DcfManager to notify a DcfState subclass that a channel switching occured.

The subclass is expected to flush the queue of packets.

Implements ns3::DcfState.

Definition at line 68 of file dca-txop.cc.

References m_txop, and ns3::DcaTxop::NotifyChannelSwitching().

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virtual void ns3::DcaTxop::Dcf::DoNotifyCollision ( void )

inlineprivatevirtual

Called by DcfManager to notify a DcfState subclass that a normal collision occured, that is, that the medium was busy when access was requested.

This may also be called if the request for access occurred within the DIFS or AIFS between two frames.

The subclass is expected to start a new backoff by calling DcfState::StartBackoffNow and DcfManager::RequestAccess is access is still needed.

Implements ns3::DcfState.

Definition at line 64 of file dca-txop.cc.

References m_txop, and ns3::DcaTxop::NotifyCollision().

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virtual void ns3::DcaTxop::Dcf::DoNotifyInternalCollision ( void )

inlineprivatevirtual

Called by DcfManager to notify a DcfState subclass that an 'internal' collision occured, that is, that the backoff timer of a higher priority DcfState expired at the same time and that access was granted to this higher priority DcfState.

The subclass is expected to start a new backoff by calling DcfState::StartBackoffNow and DcfManager::RequestAccess is access is still needed.

Implements ns3::DcfState.

Definition at line 60 of file dca-txop.cc.

References m_txop, and ns3::DcaTxop::NotifyInternalCollision().

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virtual void ns3::DcaTxop::Dcf::DoNotifySleep ( void )

inlineprivatevirtual

Called by DcfManager to notify a DcfState subclass that the device has begun to sleep.

The subclass is expected to re-insert the pending packet into the queue

Implements ns3::DcfState.

Definition at line 72 of file dca-txop.cc.

References m_txop, and ns3::DcaTxop::NotifySleep().

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virtual void ns3::DcaTxop::Dcf::DoNotifyWakeUp ( void )

inlineprivatevirtual

Called by DcfManager to notify a DcfState subclass that the device has begun to wake up.

The subclass is expected to restart a new backoff by calling DcfState::StartBackoffNow and DcfManager::RequestAccess is access is still needed.

Implements ns3::DcfState.

Definition at line 76 of file dca-txop.cc.

References m_txop, and ns3::DcaTxop::NotifyWakeUp().

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virtual bool ns3::DcaTxop::Dcf::IsEdca ( void ) const

inlinevirtual

Returns: whether this DCF state is an EDCA state

This method, which must be overridden in derived classes, indicates whether DCF or EDCAF rules should be used for this channel access function. This affects the behavior of DcfManager when dealing with this instance.

Implements ns3::DcfState.

Definition at line 51 of file dca-txop.cc.

Member Data Documentation

DcaTxop* ns3::DcaTxop::Dcf::m_txop

private

Definition at line 81 of file dca-txop.cc.

Referenced by DoNotifyAccessGranted(), DoNotifyChannelSwitching(), DoNotifyCollision(), DoNotifyInternalCollision(), DoNotifySleep(), and DoNotifyWakeUp().

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

src/wifi/model/dca-txop.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation