ns3::QosTag Class Reference

#include <qos-tag.h>

Inheritance diagram for ns3::QosTag:

Public Member Functions
	QosTag ()
	QosTag (uint8_t tid)
virtual void	Deserialize (TagBuffer i)
virtual TypeId	GetInstanceTypeId (void) const
virtual uint32_t	GetSerializedSize () const
uint8_t	GetTid (void) const
virtual void	Print (std::ostream &os) const
virtual void	Serialize (TagBuffer i) const
void	SetTid (uint8_t tid)
void	SetUserPriority (UserPriority up)
Public Member Functions inherited from ns3::ObjectBase
void	GetAttribute (std::string name, AttributeValue &value) const
bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const
void	SetAttribute (std::string name, const AttributeValue &value)
bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Static Public Member Functions
static TypeId	GetTypeId (void)
Static Public Member Functions inherited from ns3::Tag
static TypeId	GetTypeId (void)
Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)

Private Attributes
uint8_t	m_tid

Additional Inherited Members
Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
virtual void	NotifyConstructionCompleted (void)

Detailed Description

The aim of the QosTag is to provide means for an Application to specify the TID which will be used by a QoS-aware WifiMac for a given traffic flow. Note that the current QosTag class was designed to be completely mac/wifi specific without any attempt at being generic.

Doxygen introspection did not find any typical Config paths.

Attributes

• tid: The tid that indicates AC which packet belongs
  • Set with class: ns3::UintegerValue
  • Underlying type: uint8_t 0:255
  • Flags: read

No TraceSources are defined for this type.

Definition at line 61 of file qos-tag.h.

Constructor & Destructor Documentation

ns3::QosTag::QosTag

(

)

Create a QosTag with the default TID = 0 (best effort traffic)

Definition at line 48 of file qos-tag.cc.

ns3::QosTag::QosTag

(

uint8_t

tid

)

Create a QosTag with the given TID

Definition at line 52 of file qos-tag.cc.

Member Function Documentation

void ns3::QosTag::Deserialize ( TagBuffer  i )

virtual

Parameters

i	the buffer to read data from.

Read the content of the tag from the provided tag buffer. DO NOT attempt to read more bytes than you wrote with Tag::Serialize.

Implements ns3::Tag.

Definition at line 82 of file qos-tag.cc.

References ns3::TagBuffer::ReadU8().

TypeId ns3::QosTag::GetInstanceTypeId ( void  ) const

virtual

Returns

the TypeId associated to the most-derived type of this instance.

This method is typically implemented by ns3::Object::GetInstanceTypeId but some classes which derive from ns3::ObjectBase directly have to implement it themselves.

Implements ns3::ObjectBase.

Definition at line 43 of file qos-tag.cc.

uint32_t ns3::QosTag::GetSerializedSize ( ) const

virtual

Returns

the number of bytes required to serialize the data of the tag.

This method is typically invoked by Packet::AddPacketTag or Packet::AddByteTag just prior to calling Tag::Serialize.

Implements ns3::Tag.

Definition at line 70 of file qos-tag.cc.

void ns3::QosTag::Print ( std::ostream &  os ) const

virtual

Parameters

os	the stream to print to

This method is typically invoked from the Packet::PrintByteTags or Packet::PrintPacketTags methods.

Implements ns3::Tag.

Definition at line 94 of file qos-tag.cc.

void ns3::QosTag::Serialize ( TagBuffer  i ) const

virtual

Parameters

i	the buffer to write data into.

Write the content of the tag in the provided tag buffer. DO NOT attempt to write more bytes than you requested with Tag::GetSerializedSize.

Implements ns3::Tag.

Definition at line 76 of file qos-tag.cc.

References ns3::TagBuffer::WriteU8().

void ns3::QosTag::SetTid

(

uint8_t

tid

)

Set the TID to the given value. This assumes that the application is aware of the QoS support provided by the MAC layer, and is therefore able to set the correct TID.

Parameters

tid	the value of the TID to set

Definition at line 58 of file qos-tag.cc.

void ns3::QosTag::SetUserPriority

(

UserPriority

up

)

Set the TID to the value that corresponds to the requested UserPriority. Note that, since the mapping of UserPriority to TID is defined for EDCA only, you should call this method only when EDCA is used. When using HDCA, QosTag(uint8_t tid) should be used instead.

Parameters

up	the requested UserPriority

Definition at line 64 of file qos-tag.cc.

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

• src/wifi/model/qos-tag.h
• src/wifi/model/qos-tag.cc