ns3::BlockAckCache Class Reference

#include <block-ack-cache.h>

Public Member Functions
void	FillBlockAckBitmap (CtrlBAckResponseHeader *blockAckHeader)
uint16_t	GetWinStart (void)
	When an A-MPDU is received, the window start may change to a new value depending on the sequence number of the received MPDU (standard11n page 134). More...
void	Init (uint16_t winStart, uint16_t winSize)
void	UpdateWithBlockAckReq (uint16_t startingSeq)
void	UpdateWithMpdu (const WifiMacHeader *hdr)

Private Member Functions
bool	IsInWindow (uint16_t seq)
void	ResetPortionOfBitmap (uint16_t start, uint16_t end)

Private Attributes
uint16_t	m_bitmap [4096]
uint16_t	m_winEnd
uint8_t	m_winSize
uint16_t	m_winStart

Detailed Description

Definition at line 35 of file block-ack-cache.h.

Member Function Documentation

void ns3::BlockAckCache::FillBlockAckBitmap

(

CtrlBAckResponseHeader *

blockAckHeader

)

Definition at line 120 of file block-ack-cache.cc.

References ns3::CtrlBAckResponseHeader::GetStartingSequence(), ns3::CtrlBAckResponseHeader::IsBasic(), ns3::CtrlBAckResponseHeader::IsCompressed(), ns3::CtrlBAckResponseHeader::IsMultiTid(), m_bitmap, m_winSize, NS_FATAL_ERROR, NS_LOG_FUNCTION, and ns3::CtrlBAckResponseHeader::SetReceivedPacket().

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uint16_t ns3::BlockAckCache::GetWinStart

(

void

)

When an A-MPDU is received, the window start may change to a new value depending on the sequence number of the received MPDU (standard11n page 134).

This function is used to retrieve this value in order to add it to the BlockAck.

Definition at line 43 of file block-ack-cache.cc.

References m_winStart.

void ns3::BlockAckCache::Init	(	uint16_t	winStart,
		uint16_t	winSize
	)

Definition at line 33 of file block-ack-cache.cc.

References m_bitmap, m_winEnd, m_winSize, m_winStart, and NS_LOG_FUNCTION.

Referenced by ns3::MacLow::CreateBlockAckAgreement().

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bool ns3::BlockAckCache::IsInWindow ( uint16_t  seq )

private

Definition at line 113 of file block-ack-cache.cc.

References m_winSize, m_winStart, and NS_LOG_FUNCTION.

Referenced by UpdateWithBlockAckReq(), and UpdateWithMpdu().

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void ns3::BlockAckCache::ResetPortionOfBitmap ( uint16_t  start, uint16_t  end  )

private

Definition at line 101 of file block-ack-cache.cc.

References m_bitmap, NS_LOG_FUNCTION, and visualizer.core::start().

Referenced by UpdateWithBlockAckReq(), and UpdateWithMpdu().

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void ns3::BlockAckCache::UpdateWithBlockAckReq

(

uint16_t

startingSeq

)

Definition at line 72 of file block-ack-cache.cc.

References IsInWindow(), m_winEnd, m_winSize, m_winStart, NS_LOG_FUNCTION, ns3::QosUtilsIsOldPacket(), ResetPortionOfBitmap(), and WINSIZE_ASSERT.

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void ns3::BlockAckCache::UpdateWithMpdu

(

const WifiMacHeader *

hdr

)

Definition at line 49 of file block-ack-cache.cc.

References ns3::WifiMacHeader::GetFragmentNumber(), ns3::WifiMacHeader::GetSequenceNumber(), IsInWindow(), m_bitmap, m_winEnd, m_winStart, NS_LOG_FUNCTION, ns3::QosUtilsIsOldPacket(), ResetPortionOfBitmap(), and WINSIZE_ASSERT.

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Member Data Documentation

uint16_t ns3::BlockAckCache::m_bitmap[4096]

private

Definition at line 58 of file block-ack-cache.h.

Referenced by FillBlockAckBitmap(), Init(), ResetPortionOfBitmap(), and UpdateWithMpdu().

uint16_t ns3::BlockAckCache::m_winEnd

private

Definition at line 56 of file block-ack-cache.h.

Referenced by Init(), UpdateWithBlockAckReq(), and UpdateWithMpdu().

uint8_t ns3::BlockAckCache::m_winSize

private

Definition at line 55 of file block-ack-cache.h.

Referenced by FillBlockAckBitmap(), Init(), IsInWindow(), and UpdateWithBlockAckReq().

uint16_t ns3::BlockAckCache::m_winStart

private

Definition at line 54 of file block-ack-cache.h.

Referenced by GetWinStart(), Init(), IsInWindow(), UpdateWithBlockAckReq(), and UpdateWithMpdu().

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

• src/wifi/model/block-ack-cache.h
• src/wifi/model/block-ack-cache.cc