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ns3::MacRxMiddle Class Reference
Wifi Models

#include <mac-rx-middle.h>

Public Types

typedef Callback< void, Ptr
< Packet >, const
WifiMacHeader * > 		ForwardUpCallback
 

Public Member Functions

void Receive (Ptr< Packet > packet, const WifiMacHeader *hdr)
 
void SetForwardCallback (ForwardUpCallback callback)
 

Private Types

typedef std::map< Mac48Address,
OriginatorRxStatus
*, std::less< Mac48Address > > 		Originators
 
typedef std::map< Mac48Address,
OriginatorRxStatus
*, std::less< Mac48Address >
>::iterator 		OriginatorsI
 
typedef std::map< std::pair
< Mac48Address, uint8_t >
, OriginatorRxStatus
*, std::less< std::pair
< Mac48Address, uint8_t > > > 		QosOriginators
 
typedef std::map< std::pair
< Mac48Address, uint8_t >
, OriginatorRxStatus
*, std::less< std::pair
< Mac48Address, uint8_t >
> >::iterator 		QosOriginatorsI
 

Private Member Functions

Ptr< Packet > HandleFragments (Ptr< Packet > packet, const WifiMacHeader *hdr, OriginatorRxStatus *originator)
 
bool IsDuplicate (const WifiMacHeader *hdr, OriginatorRxStatus *originator) const
 
OriginatorRxStatus * Lookup (const WifiMacHeader *hdr)
 

Private Attributes

ForwardUpCallback m_callback
 
Originators m_originatorStatus
 
QosOriginators m_qosOriginatorStatus
 

Friends

class MacRxMiddleTest
 

Detailed Description

This class handles duplicate detection and recomposition of fragments.

Definition at line 40 of file mac-rx-middle.h.

Member Function Documentation

void ns3::MacRxMiddle::Receive ( Ptr< Packet >  packet,
const WifiMacHeader *  hdr 
)

The check below is really uneeded because it can fail in a lot of normal cases. Specifically, it is possible for sequence numbers to loop back to zero once they reach 0xfff0 and to go up to 0xf7f0 in which case the check below will report the two sequence numbers to not have the correct order relationship. So, this check cannot be used to discard old duplicate frames. It is thus here only for documentation purposes.

Definition at line 246 of file mac-rx-middle.cc.

References ns3::Mac48Address::IsGroup(), NS_ASSERT, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

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