MMacCsma Class Reference

Inheritance diagram for MMacCsma:

[legend]Collaboration diagram for MMacCsma:


Public Member Functions
	MMacCsma ()
virtual void	AckTimeout ()
virtual void	BackoffEnded ()
Protected Member Functions
virtual void	recvFromUpperLayers (Packet *p)
virtual void	Phy2MacEndTx (const Packet *p)
virtual void	Phy2MacStartRx (const Packet *p)
virtual void	Phy2MacEndRx (Packet *p)
virtual void	recvData4Me (Packet *p)
virtual void	recvAck4Me (Packet *p)
virtual void	recvWhateverElse (Packet *p)
virtual void	enterState_IDLE ()
virtual void	enterState_RX_DATA ()
virtual void	enterState_TX_ACK (int macSA_of_data_pkt)
virtual void	enterState_CHK_PENDING_PKT ()
virtual void	enterState_CHK_FROZEN_BACKOFF ()
virtual void	enterState_BACKOFF ()
virtual void	enterState_FREEZE_BACKOFF ()
virtual void	enterState_TX_DATA ()
virtual void	enterState_START_ACK_TIMEOUT ()
virtual void	enterState_WAIT_ACK ()
virtual void	enterState_RX_ACK ()
virtual void	enterState_CHK_ACK_TIMEOUT_EXPIRED ()
virtual void	enterState_TX_SUCCESSFUL ()
virtual void	enterState_TX_FAILED ()
void	setState (enum MMAC_CSMA_STATE s)
bool	PendingPacket ()
bool	FrozenBackoff ()
bool	AckTimeoutExpired ()
Protected Attributes
enum MMAC_CSMA_STATE	state
const Packet *	PktRx
Packet *	PktTx
std::queue< Packet * >	Q
int	ConsecutiveFailedTxAttempts
	MAC queue used for packet scheduling.
Backoff_Timer	backoff_timer
Ack_Timer	ack_timer
int	HeaderSize_
double	BaseBackoffTime_
double	AckTimeout_
int	debug_states_
Static Protected Attributes
static int	uidcnt = 1000

Detailed Description

Definition at line 118 of file mmac-csma.h.

Member Function Documentation

void MMacCsma::recvFromUpperLayers ( Packet * p ) [protected, virtual]

Handle a packet coming from upper layers

Parameters:

pointer to the packet

Reimplemented from MMac.

Definition at line 120 of file mmac-csma.cc.

References DEBUG_EVENT, enterState_TX_DATA(), PendingPacket(), PktTx, Q, state, and STATE_IDLE.

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void MMacCsma::Phy2MacEndTx ( const Packet * p ) [protected, virtual]

Handle the end-of-PHY-transmission event

This method is expected to be re- implemented by a class inheriting from MMac in order to perform the necessary MAC operations.

Parameters:

pointer to the packet whose transmission has ended. Note that the Packet is not any more under control of the MAC at the time this event occurs, hence the 'const' declaration.

Reimplemented from MMac.

Definition at line 141 of file mmac-csma.cc.

References DEBUG_EVENT, DEBUG_UNEXPECTED_EVENT, enterState_CHK_PENDING_PKT(), enterState_START_ACK_TIMEOUT(), state, STATE_TX_ACK, and STATE_TX_DATA.

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void MMacCsma::Phy2MacStartRx ( const Packet * p ) [protected, virtual]

Handle the detected-start-of-PHY-reception event (e.g., PHY preamble successfully detected, so we expect to receive a new packet, possibly with errors)

This method is expected to be re- implemented by a class inheriting from MMac in order to perform the necessary MAC operations.

Parameters:

pointer to the packet whose reception has begun. Note that the Packet is not yet under control of the MAC at the time this event occurs, hence the 'const' declaration.

Reimplemented from MMac.

Definition at line 158 of file mmac-csma.cc.

References DEBUG_EVENT, DEBUG_UNEXPECTED_EVENT, enterState_FREEZE_BACKOFF(), enterState_RX_ACK(), enterState_RX_DATA(), PktRx, state, STATE_BACKOFF, STATE_IDLE, and STATE_WAIT_ACK.

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