DSR send buffer. More...

#include "dsr-rsendbuff.h"

Collaboration diagram for ns3::dsr::DsrSendBuffer:

Public Member Functions
	DsrSendBuffer ()
	Default constructor.

bool	Dequeue (Ipv4Address dst, DsrSendBuffEntry &entry)
	Return first found (the earliest) entry for the given destination.

void	DropPacketWithDst (Ipv4Address dst)
	Remove all packets with destination IP address dst.

bool	Enqueue (DsrSendBuffEntry &entry)
	Push entry in queue, if there is no entry with the same packet and destination address in queue.

bool	Find (Ipv4Address dst)
	Check if a packet with destination dst exists in the queue.

std::vector< DsrSendBuffEntry > &	GetBuffer ()
	Return a pointer to the internal queue.

uint32_t	GetMaxQueueLen () const
	Return the maximum queue length.

Time	GetSendBufferTimeout () const
	Return the entry lifetime in the queue.

uint32_t	GetSize ()
	Number of entries.

void	SetMaxQueueLen (uint32_t len)
	Set the maximum queue length.

void	SetSendBufferTimeout (Time t)
	Set the entry lifetime in the queue.

Private Member Functions
void	Drop (DsrSendBuffEntry en, std::string reason)
	Notify that packet is dropped from queue by timeout.

void	Purge ()
	Remove all expired entries.

Private Attributes
uint32_t	m_maxLen
	The maximum number of packets that we allow a routing protocol to buffer.

std::vector< DsrSendBuffEntry >	m_sendBuffer
	The send buffer to cache unsent packet.

Time	m_sendBufferTimeout
	The maximum period of time that a routing protocol is allowed to buffer a packet for, seconds.

Detailed Description

DSR send buffer.

Definition at line 157 of file dsr-rsendbuff.h.

Constructor & Destructor Documentation

◆ DsrSendBuffer()

ns3::dsr::DsrSendBuffer::DsrSendBuffer ( )

inline

Default constructor.

Definition at line 163 of file dsr-rsendbuff.h.

Member Function Documentation

◆ Dequeue()

bool ns3::dsr::DsrSendBuffer::Dequeue	(	Ipv4Address	dst,
		DsrSendBuffEntry &	entry )

Return first found (the earliest) entry for the given destination.

Parameters

dst	IPv4 address of the destination
entry	pointer to entry to return

Returns: true if successfully dequeued, false otherwise

Definition at line 99 of file dsr-rsendbuff.cc.

References ns3::dsr::DsrSendBuffEntry::GetPacket(), ns3::Packet::GetSize(), m_sendBuffer, NS_LOG_DEBUG, and Purge().

Referenced by DsrSendBuffTest::DoRun(), and ns3::dsr::DsrRouting::SendPacketFromBuffer().

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◆ Drop()

void ns3::dsr::DsrSendBuffer::Drop	(	DsrSendBuffEntry	en,
		std::string	reason )

private

Notify that packet is dropped from queue by timeout.

Parameters

en	BuffEntry Buffer entry
reason	Drop reason

Definition at line 170 of file dsr-rsendbuff.cc.

References ns3::dsr::DsrSendBuffEntry::GetDestination(), ns3::dsr::DsrSendBuffEntry::GetPacket(), ns3::Packet::GetUid(), and NS_LOG_LOGIC.

Referenced by DropPacketWithDst(), Enqueue(), and Purge().

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◆ DropPacketWithDst()

void ns3::dsr::DsrSendBuffer::DropPacketWithDst ( Ipv4Address dst )

Remove all packets with destination IP address dst.

Parameters

dst	IPv4 address of the destination

Definition at line 77 of file dsr-rsendbuff.cc.

References Drop(), m_sendBuffer, NS_LOG_FUNCTION, and Purge().

Referenced by DsrSendBuffTest::DoRun(), and ns3::dsr::DsrRouting::RouteRequestTimerExpire().

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◆ Enqueue()

bool ns3::dsr::DsrSendBuffer::Enqueue ( DsrSendBuffEntry & entry )

Push entry in queue, if there is no entry with the same packet and destination address in queue.

Parameters

entry DsrSendBuffEntry to put in the queue

Returns: true if successfully enqueued, false otherwise

Definition at line 45 of file dsr-rsendbuff.cc.

References Drop(), ns3::dsr::DsrSendBuffEntry::GetDestination(), ns3::dsr::DsrSendBuffEntry::GetPacket(), ns3::Packet::GetUid(), m_maxLen, m_sendBuffer, m_sendBufferTimeout, Purge(), and ns3::dsr::DsrSendBuffEntry::SetExpireTime().

Referenced by DsrSendBuffTest::CheckSizeLimit(), DsrSendBuffTest::DoRun(), ns3::dsr::DsrRouting::PacketNewRoute(), and ns3::dsr::DsrRouting::Send().

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◆ Find()

bool ns3::dsr::DsrSendBuffer::Find ( Ipv4Address dst )

Check if a packet with destination dst exists in the queue.

Parameters

dst	IPv4 address of the destination

Returns: true if found, false otherwise

Definition at line 119 of file dsr-rsendbuff.cc.

References m_sendBuffer, and NS_LOG_DEBUG.

Referenced by DsrSendBuffTest::DoRun(), ns3::dsr::DsrRouting::RouteRequestTimerExpire(), ns3::dsr::DsrRouting::Send(), ns3::dsr::DsrRouting::SendErrorRequest(), and ns3::dsr::DsrRouting::SendPacketFromBuffer().

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◆ GetBuffer()

std::vector< DsrSendBuffEntry > & ns3::dsr::DsrSendBuffer::GetBuffer ( )

inline

Return a pointer to the internal queue.

Returns: a pointer to the internal queue

Definition at line 253 of file dsr-rsendbuff.h.

References m_sendBuffer.

Referenced by ns3::dsr::DsrRouting::CheckSendBuffer().

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◆ GetMaxQueueLen()

uint32_t ns3::dsr::DsrSendBuffer::GetMaxQueueLen ( ) const

inline

Return the maximum queue length.

Returns: the maximum queue length

Definition at line 211 of file dsr-rsendbuff.h.

References m_maxLen.

Referenced by DsrSendBuffTest::CheckSizeLimit(), and DsrSendBuffTest::DoRun().

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◆ GetSendBufferTimeout()

Time ns3::dsr::DsrSendBuffer::GetSendBufferTimeout ( ) const

inline

Return the entry lifetime in the queue.

Returns: the entry lifetime in the queue

Definition at line 231 of file dsr-rsendbuff.h.

References m_sendBufferTimeout.

Referenced by DsrSendBuffTest::DoRun().

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◆ GetSize()

uint32_t ns3::dsr::DsrSendBuffer::GetSize ( )

Number of entries.

Returns: the number of entries in the queue

Definition at line 38 of file dsr-rsendbuff.cc.

References m_sendBuffer, and Purge().

Referenced by ns3::dsr::DsrRouting::CheckSendBuffer(), DsrSendBuffTest::CheckSizeLimit(), DsrSendBuffTest::CheckTimeout(), DsrSendBuffTest::DoRun(), ns3::dsr::DsrRouting::RouteRequestTimerExpire(), ns3::dsr::DsrRouting::Send(), ns3::dsr::DsrRouting::SendErrorRequest(), and ns3::dsr::DsrRouting::SendPacketFromBuffer().

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◆ Purge()

void ns3::dsr::DsrSendBuffer::Purge ( )

private

Remove all expired entries.

Definition at line 150 of file dsr-rsendbuff.cc.

References Drop(), m_sendBuffer, NS_LOG_DEBUG, and NS_LOG_INFO.

Referenced by Dequeue(), DropPacketWithDst(), Enqueue(), and GetSize().

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◆ SetMaxQueueLen()

void ns3::dsr::DsrSendBuffer::SetMaxQueueLen ( uint32_t len )

inline

Set the maximum queue length.

Parameters

len	the maximum queue length

Definition at line 221 of file dsr-rsendbuff.h.

References m_maxLen.

Referenced by DsrSendBuffTest::DoRun(), and ns3::dsr::DsrRouting::Start().

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◆ SetSendBufferTimeout()

void ns3::dsr::DsrSendBuffer::SetSendBufferTimeout ( Time t )

inline

Set the entry lifetime in the queue.

Parameters

t	the entry lifetime in the queue

Definition at line 241 of file dsr-rsendbuff.h.

References m_sendBufferTimeout.

Referenced by DsrSendBuffTest::DoRun(), and ns3::dsr::DsrRouting::Start().

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Member Data Documentation

◆ m_maxLen

uint32_t ns3::dsr::DsrSendBuffer::m_maxLen

private

The maximum number of packets that we allow a routing protocol to buffer.

Definition at line 268 of file dsr-rsendbuff.h.

Referenced by Enqueue(), GetMaxQueueLen(), and SetMaxQueueLen().

◆ m_sendBuffer

std::vector<DsrSendBuffEntry> ns3::dsr::DsrSendBuffer::m_sendBuffer

private

The send buffer to cache unsent packet.

Definition at line 259 of file dsr-rsendbuff.h.

Referenced by Dequeue(), DropPacketWithDst(), Enqueue(), Find(), GetBuffer(), GetSize(), and Purge().

◆ m_sendBufferTimeout

Time ns3::dsr::DsrSendBuffer::m_sendBufferTimeout

private

The maximum period of time that a routing protocol is allowed to buffer a packet for, seconds.

Definition at line 269 of file dsr-rsendbuff.h.

Referenced by Enqueue(), GetSendBufferTimeout(), and SetSendBufferTimeout().

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

src/dsr/model/dsr-rsendbuff.h
src/dsr/model/dsr-rsendbuff.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ DsrSendBuffer()

Member Function Documentation

◆ Dequeue()

◆ Drop()

◆ DropPacketWithDst()

◆ Enqueue()

◆ Find()

◆ GetBuffer()

◆ GetMaxQueueLen()

◆ GetSendBufferTimeout()

◆ GetSize()

◆ Purge()

◆ SetMaxQueueLen()

◆ SetSendBufferTimeout()

Member Data Documentation

◆ m_maxLen

◆ m_sendBuffer

◆ m_sendBufferTimeout