DSR route request queue Since DSR is an on demand routing we queue requests while looking for route. More...

#include <dsr-rcache.h>

Inheritance diagram for ns3::dsr::RouteCache:

Collaboration diagram for ns3::dsr::RouteCache:

Classes
struct	Neighbor

Public Types
typedef std::list < RouteCacheEntry::IP_VECTOR >	routeVector

Public Member Functions
	RouteCache ()
	Constructor.
virtual	~RouteCache ()
	Destructor.
void	AddArpCache (Ptr< ArpCache >)
void	AddNeighbor (std::vector< Ipv4Address > nodeList, Ipv4Address ownAddress, Time expire)
bool	AddRoute (RouteCacheEntry &rt)
bool	AddRoute_Link (RouteCacheEntry::IP_VECTOR nodelist, Ipv4Address node)
uint16_t	CheckUniqueAckId (Ipv4Address nextHop)
void	Clear ()
void	ClearMac ()
void	DelArpCache (Ptr< ArpCache >)
void	DeleteAllRoutesIncludeLink (Ipv4Address errorSrc, Ipv4Address unreachNode, Ipv4Address node)
bool	DeleteRoute (Ipv4Address dst)
void	DropPathWithDst (Ipv4Address dst)
bool	FindSameRoute (RouteCacheEntry &rt, std::list< RouteCacheEntry > &rtVector)
uint16_t	GetAckSize ()
Ipv4Address	GetDestination (void) const
Time	GetExpireTime (Ipv4Address addr)
Callback< void, WifiMacHeader const & >	GetTxErrorCallback () const
bool	IsEqual (RouteCacheEntry ca)
bool	IsLinkCache ()
bool	IsNeighbor (Ipv4Address addr)
Mac48Address	LookupMacAddress (Ipv4Address)
bool	LookupRoute (Ipv4Address id, RouteCacheEntry &rt)
void	Print (std::ostream &os)
void	PrintRouteVector (std::list< RouteCacheEntry > route)
void	PrintVector (std::vector< Ipv4Address > &vec)
void	ProcessTxError (WifiMacHeader const &)
void	Purge ()
void	PurgeLinkNode ()
void	PurgeMac ()
void	RebuildBestRouteTable (Ipv4Address source)
	USE MAXWEIGHT TO REPRESENT MAX; USE BROADCAST ADDRESS TO REPRESENT NULL PRECEEDING ADDRESS.
void	RemoveLastEntry (std::list< RouteCacheEntry > &rtVector)
void	ScheduleTimer ()
void	SetCacheType (std::string type)
	dijsktra algorithm to get the best route from m_netGraph and update the m_bestRoutesTable_link current graph information has changed
void	UpdateNeighbor (std::vector< Ipv4Address > nodeList, Time expire)
void	UpdateNetGraph ()
	Update the Net Graph for the link and node cache has changed.
bool	UpdateRouteEntry (Ipv4Address dst)
void	UseExtends (RouteCacheEntry::IP_VECTOR rt)

bool	GetSubRoute () const
void	SetSubRoute (bool subRoute)
uint32_t	GetMaxCacheLen () const
void	SetMaxCacheLen (uint32_t len)
Time	GetCacheTimeout () const
void	SetCacheTimeout (Time t)
uint32_t	GetMaxEntriesEachDst () const
void	SetMaxEntriesEachDst (uint32_t entries)
Time	GetBadLinkLifetime () const
void	SetBadLinkLifetime (Time t)
uint64_t	GetStabilityDecrFactor () const
void	SetStabilityDecrFactor (uint64_t decrFactor)
uint64_t	GetStabilityIncrFactor () const
void	SetStabilityIncrFactor (uint64_t incrFactor)
Time	GetInitStability () const
void	SetInitStability (Time initStability)
Time	GetMinLifeTime () const
void	SetMinLifeTime (Time minLifeTime)
Time	GetUseExtends () const
void	SetUseExtends (Time useExtends)

void	SetCallback (Callback< void, Ipv4Address, uint8_t > cb)
Callback< void, Ipv4Address, uint8_t >	GetCallback () const
Public Member Functions inherited from ns3::Object
	Object ()
virtual	~Object ()
void	AggregateObject (Ptr< Object > other)
void	Dispose (void)
AggregateIterator	GetAggregateIterator (void) const
virtual TypeId	GetInstanceTypeId (void) const
template<typename T >
Ptr< T >	GetObject (void) const
template<typename T >
Ptr< T >	GetObject (TypeId tid) const
void	Start (void)
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	SimpleRefCount (const SimpleRefCount &o)
uint32_t	GetReferenceCount (void) const
SimpleRefCount &	operator= (const SimpleRefCount &o)
void	Ref (void) const
void	Unref (void) const
Public Member Functions inherited from ns3::ObjectBase
virtual	~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 ()
	The Route Cache used by DSR.

Public Attributes
std::vector< Ptr< ArpCache > >	m_arp
Time	m_delay
Callback< void, Ipv4Address, uint8_t >	m_handleLinkFailure
std::vector< Neighbor >	m_nb
Timer	m_ntimer
Callback< void, WifiMacHeader const & >	m_txErrorCallback

Private Types
typedef std::list < RouteCacheEntry >	routeEntryVector

Private Member Functions
bool	DecStability (Ipv4Address node)
bool	IncStability (Ipv4Address node)
bool	LookupRoute_Link (Ipv4Address id, RouteCacheEntry &rt)
RouteCache &	operator= (RouteCache const &)

Private Attributes
std::map< Ipv4Address, uint16_t >	m_ackIdCache
Time	m_badLinkLifetime
std::map< Ipv4Address, RouteCacheEntry::IP_VECTOR >	m_bestRoutesTable_link
Time	m_initStability
bool	m_isLinkCache
std::map< Link, LinkStab >	m_linkCache
uint32_t	m_maxCacheLen
uint32_t	m_maxEntriesEachDst
Time	m_minLifeTime
std::map< Ipv4Address, std::map< Ipv4Address, uint32_t > >	m_netGraph
std::map< Ipv4Address, NodeStab >	m_nodeCache
routeEntryVector	m_routeEntryVector
std::map< Ipv4Address, routeEntryVector >	m_sortedRoutes
uint64_t	m_stabilityDecrFactor
uint64_t	m_stabilityIncrFactor
bool	m_subRoute
Time	m_useExtends
RouteCacheEntry::IP_VECTOR	m_vector
Time	RouteCacheTimeout

Additional Inherited Members
Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
virtual void	DoDispose (void)
virtual void	DoStart (void)
virtual void	NotifyNewAggregate (void)

Detailed Description

DSR route request queue Since DSR is an on demand routing we queue requests while looking for route.

Definition at line 302 of file dsr-rcache.h.

Member Typedef Documentation

typedef std::list<RouteCacheEntry> ns3::dsr::RouteCache::routeEntryVector

private

Definition at line 558 of file dsr-rcache.h.

typedef std::list<RouteCacheEntry::IP_VECTOR> ns3::dsr::RouteCache::routeVector

Definition at line 322 of file dsr-rcache.h.

Constructor & Destructor Documentation

ns3::dsr::RouteCache::RouteCache ( )

Constructor.

Definition at line 145 of file dsr-rcache.cc.

References m_delay, m_ntimer, m_txErrorCallback, ns3::MakeCallback(), ProcessTxError(), PurgeMac(), ns3::Timer::SetDelay(), and ns3::Timer::SetFunction().

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ns3::dsr::RouteCache::~RouteCache ( )

virtual

Destructor.

Definition at line 160 of file dsr-rcache.cc.

References m_sortedRoutes, and NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

void ns3::dsr::RouteCache::AddArpCache ( Ptr< ArpCache > a )

Definition at line 1183 of file dsr-rcache.cc.

References m_arp.

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

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void ns3::dsr::RouteCache::AddNeighbor	(	std::vector< Ipv4Address >	nodeList,
		Ipv4Address	ownAddress,
		Time	expire
	)

Definition at line 1124 of file dsr-rcache.cc.

References LookupMacAddress(), m_nb, ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_LOGIC, and PurgeMac().

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bool ns3::dsr::RouteCache::AddRoute ( RouteCacheEntry & rt )

Add route cache entry if it doesn't yet exist in route cache

Parameters

rt	route cache entry

Returns: true in success

Save the new route cache along with the destination address in map

Drop the most aged packet when buffer reaches to max

Save the new route cache along with the destination address in map

Definition at line 642 of file dsr-rcache.cc.

References ns3::dsr::CompareRoutesExpire(), FindSameRoute(), ns3::dsr::RouteCacheEntry::GetDestination(), ns3::dsr::RouteCacheEntry::GetExpireTime(), ns3::dsr::RouteCacheEntry::GetVector(), m_maxEntriesEachDst, m_sortedRoutes, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_INFO, Purge(), and RemoveLastEntry().

Referenced by ns3::dsr::DsrRouting::AddRoute(), and ns3::dsr::DsrCacheEntryTest::DoRun().

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bool ns3::dsr::RouteCache::AddRoute_Link	(	RouteCacheEntry::IP_VECTOR	nodelist,
		Ipv4Address	node
	)

Definition at line 554 of file dsr-rcache.cc.

References ns3::dsr::LinkStab::GetLinkStability(), ns3::Time::GetSeconds(), m_initStability, m_linkCache, m_minLifeTime, m_nodeCache, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::dsr::Link::Print(), ns3::dsr::LinkStab::Print(), PurgeLinkNode(), RebuildBestRouteTable(), ns3::dsr::LinkStab::SetLinkStability(), ns3::dsr::NodeStab::SetNodeStability(), and UpdateNetGraph().

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

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uint16_t ns3::dsr::RouteCache::CheckUniqueAckId ( Ipv4Address nextHop )

This part of code maintains an Acknowledgment id cache for next hop and remove duplicate ids

Definition at line 1032 of file dsr-rcache.cc.

References m_ackIdCache, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

Referenced by ns3::dsr::DsrRouting::AddAckReqHeader(), and ns3::dsr::DsrRouting::SalvagePacket().

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void ns3::dsr::RouteCache::Clear ( void )

inline

Definition at line 459 of file dsr-rcache.h.

References m_routeEntryVector.

void ns3::dsr::RouteCache::ClearMac ( )

inline

Definition at line 512 of file dsr-rcache.h.

References m_nb.

bool ns3::dsr::RouteCache::DecStability ( Ipv4Address node )

private

Definition at line 534 of file dsr-rcache.cc.

References m_initStability, m_nodeCache, m_stabilityDecrFactor, and NS_LOG_FUNCTION.

Referenced by DeleteAllRoutesIncludeLink().

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void ns3::dsr::RouteCache::DelArpCache ( Ptr< ArpCache > a )

Definition at line 1189 of file dsr-rcache.cc.

References m_arp.

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

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void ns3::dsr::RouteCache::DeleteAllRoutesIncludeLink	(	Ipv4Address	errorSrc,
		Ipv4Address	unreachNode,
		Ipv4Address	node
	)

Definition at line 759 of file dsr-rcache.cc.

References ns3::dsr::CompareRoutesExpire(), DecStability(), IsLinkCache(), m_linkCache, m_nodeCache, m_sortedRoutes, m_subRoute, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_LOGIC, Purge(), PurgeLinkNode(), RebuildBestRouteTable(), ns3::dsr::RouteCacheEntry::SetDestination(), ns3::dsr::RouteCacheEntry::SetExpireTime(), ns3::dsr::RouteCacheEntry::SetVector(), and UpdateNetGraph().

Referenced by ns3::dsr::DsrRouting::DeleteAllRoutesIncludeLink(), ns3::dsr::DsrRouting::NetworkScheduleTimerExpire(), and ns3::dsr::DsrRouting::SendRerrWhenBreaksLinkToNextHop().

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bool ns3::dsr::RouteCache::DeleteRoute ( Ipv4Address dst )

Delete the route with certain destination address

Parameters

dst	the destination address of the routes that should be deleted

Definition at line 745 of file dsr-rcache.cc.

References m_sortedRoutes, NS_LOG_FUNCTION, NS_LOG_LOGIC, and Purge().

Referenced by ns3::dsr::DsrCacheEntryTest::DoRun().

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void ns3::dsr::RouteCache::DropPathWithDst ( Ipv4Address dst )

bool ns3::dsr::RouteCache::FindSameRoute	(	RouteCacheEntry &	rt,
		std::list< RouteCacheEntry > &	rtVector
	)

Find the same route in the route cache

Parameters

rt	entry with destination address dst, if exists
rtVector	the route vector

Definition at line 712 of file dsr-rcache.cc.

References ns3::dsr::CompareRoutesExpire(), ns3::dsr::RouteCacheEntry::GetDestination(), ns3::dsr::RouteCacheEntry::GetExpireTime(), ns3::Time::GetSeconds(), ns3::dsr::RouteCacheEntry::GetVector(), m_sortedRoutes, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by AddRoute().

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uint16_t ns3::dsr::RouteCache::GetAckSize ( )

Definition at line 1054 of file dsr-rcache.cc.

References m_ackIdCache.

Time ns3::dsr::RouteCache::GetBadLinkLifetime ( ) const

inline

Definition at line 363 of file dsr-rcache.h.

References m_badLinkLifetime.

Time ns3::dsr::RouteCache::GetCacheTimeout ( ) const

inline

Definition at line 347 of file dsr-rcache.h.

References RouteCacheTimeout.

Callback<void, Ipv4Address, uint8_t > ns3::dsr::RouteCache::GetCallback ( ) const

inline

Definition at line 535 of file dsr-rcache.h.

References m_handleLinkFailure.

Ipv4Address ns3::dsr::RouteCache::GetDestination ( void ) const

Time ns3::dsr::RouteCache::GetExpireTime ( Ipv4Address addr )

Definition at line 1080 of file dsr-rcache.cc.

References m_nb, ns3::Simulator::Now(), NS_LOG_FUNCTION, PurgeMac(), and ns3::Seconds().

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Time ns3::dsr::RouteCache::GetInitStability ( ) const

inline

Definition at line 387 of file dsr-rcache.h.

References m_initStability.

uint32_t ns3::dsr::RouteCache::GetMaxCacheLen ( ) const

inline

Definition at line 339 of file dsr-rcache.h.

References m_maxCacheLen.

uint32_t ns3::dsr::RouteCache::GetMaxEntriesEachDst ( ) const

inline

Definition at line 355 of file dsr-rcache.h.

References m_maxEntriesEachDst.

Time ns3::dsr::RouteCache::GetMinLifeTime ( ) const

inline

Definition at line 395 of file dsr-rcache.h.

References m_minLifeTime.

uint64_t ns3::dsr::RouteCache::GetStabilityDecrFactor ( ) const

inline

Definition at line 371 of file dsr-rcache.h.

References m_stabilityDecrFactor.

uint64_t ns3::dsr::RouteCache::GetStabilityIncrFactor ( ) const

inline

Definition at line 379 of file dsr-rcache.h.

References m_stabilityIncrFactor.

bool ns3::dsr::RouteCache::GetSubRoute ( ) const

inline

Definition at line 331 of file dsr-rcache.h.

References m_subRoute.

Callback<void, WifiMacHeader const &> ns3::dsr::RouteCache::GetTxErrorCallback ( ) const

inline

Definition at line 525 of file dsr-rcache.h.

References m_txErrorCallback.

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

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Time ns3::dsr::RouteCache::GetUseExtends ( ) const

inline

Definition at line 403 of file dsr-rcache.h.

References m_useExtends.

bool ns3::dsr::RouteCache::IncStability ( Ipv4Address node )

private

Definition at line 513 of file dsr-rcache.cc.

References ns3::Time::GetSeconds(), m_initStability, m_nodeCache, m_stabilityIncrFactor, NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by UseExtends().

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bool ns3::dsr::RouteCache::IsEqual ( RouteCacheEntry ca )

bool ns3::dsr::RouteCache::IsLinkCache ( )

Definition at line 308 of file dsr-rcache.cc.

References m_isLinkCache, and NS_LOG_FUNCTION.

Referenced by ns3::dsr::DsrRouting::CheckSendBuffer(), DeleteAllRoutesIncludeLink(), ns3::dsr::DsrRouting::IsLinkCache(), LookupRoute(), ns3::dsr::DsrRouting::PacketNewRoute(), ns3::dsr::DsrRouting::RouteRequestTimerExpire(), ns3::dsr::DsrRouting::SalvagePacket(), ns3::dsr::DsrRouting::Send(), ns3::dsr::DsrRouting::SendErrorRequest(), ns3::dsr::DsrRouting::SendPacketFromBuffer(), ns3::dsr::DsrRouting::SendRerrWhenBreaksLinkToNextHop(), and ns3::dsr::DsrRouting::SendUnreachError().

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bool ns3::dsr::RouteCache::IsNeighbor ( Ipv4Address addr )

This part maintains a neighbor list to handle unidirectional links and link-layer acks

Definition at line 1064 of file dsr-rcache.cc.

References m_nb, NS_LOG_FUNCTION, and PurgeMac().

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Mac48Address ns3::dsr::RouteCache::LookupMacAddress ( Ipv4Address addr )

Definition at line 1195 of file dsr-rcache.cc.

References ns3::Mac48Address::ConvertFrom(), ns3::ArpCache::Entry::GetMacAddress(), ns3::ArpCache::Entry::IsAlive(), ns3::ArpCache::Entry::IsExpired(), and m_arp.

Referenced by AddNeighbor(), and UpdateNeighbor().

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bool ns3::dsr::RouteCache::LookupRoute	(	Ipv4Address	id,
		RouteCacheEntry &	rt
	)

Lookup route cache entry with destination address dst

Parameters

dst	destination address
rt	entry with destination address dst, if exists

Returns: true on success

Definition at line 206 of file dsr-rcache.cc.

References ns3::dsr::CompareRoutesExpire(), IsLinkCache(), LookupRoute_Link(), m_sortedRoutes, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, Purge(), ns3::dsr::RouteCacheEntry::SetDestination(), ns3::dsr::RouteCacheEntry::SetExpireTime(), and ns3::dsr::RouteCacheEntry::SetVector().

Referenced by ns3::dsr::DsrRouting::CheckSendBuffer(), ns3::dsr::DsrCacheEntryTest::DoRun(), ns3::dsr::DsrRouting::LookupRoute(), ns3::dsr::DsrRouting::PacketNewRoute(), ns3::dsr::DsrRouting::RouteRequestTimerExpire(), ns3::dsr::DsrRouting::SalvagePacket(), ns3::dsr::DsrRouting::Send(), ns3::dsr::DsrRouting::SendErrorRequest(), ns3::dsr::DsrRouting::SendRerrWhenBreaksLinkToNextHop(), and ns3::dsr::DsrRouting::SendUnreachError().

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bool ns3::dsr::RouteCache::LookupRoute_Link	(	Ipv4Address	id,
		RouteCacheEntry &	rt
	)

private

Definition at line 433 of file dsr-rcache.cc.

References ns3::dsr::RouteCacheEntry::GetVector(), m_bestRoutesTable_link, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_INFO, PrintVector(), RouteCacheTimeout, ns3::dsr::RouteCacheEntry::SetDestination(), ns3::dsr::RouteCacheEntry::SetExpireTime(), and ns3::dsr::RouteCacheEntry::SetVector().

Referenced by LookupRoute().

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RouteCache& ns3::dsr::RouteCache::operator= ( RouteCache const & )

private

void ns3::dsr::RouteCache::Print ( std::ostream & os )

Definition at line 1013 of file dsr-rcache.cc.

References m_routeEntryVector, NS_LOG_FUNCTION, and Purge().

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void ns3::dsr::RouteCache::PrintRouteVector ( std::list< RouteCacheEntry > route )

Print all the route vector elements from the route list

Parameters

route the route list

Definition at line 934 of file dsr-rcache.cc.

References NS_LOG_FUNCTION, NS_LOG_INFO, and PrintVector().

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void ns3::dsr::RouteCache::PrintVector ( std::vector< Ipv4Address > & vec )

Print the route vector elements

Parameters

vec	the route vector

Definition at line 913 of file dsr-rcache.cc.

References NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by LookupRoute_Link(), PrintRouteVector(), and RebuildBestRouteTable().

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void ns3::dsr::RouteCache::ProcessTxError ( WifiMacHeader const & hdr )

Definition at line 1212 of file dsr-rcache.cc.

References ns3::WifiMacHeader::GetAddr1(), m_nb, and PurgeMac().

Referenced by RouteCache().

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void ns3::dsr::RouteCache::Purge ( )

Definition at line 946 of file dsr-rcache.cc.

References m_sortedRoutes, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::Seconds().

Referenced by AddRoute(), DeleteAllRoutesIncludeLink(), DeleteRoute(), LookupRoute(), and Print().

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void ns3::dsr::RouteCache::PurgeLinkNode ( )

Definition at line 463 of file dsr-rcache.cc.

References m_linkCache, m_nodeCache, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::Seconds().

Referenced by AddRoute_Link(), and DeleteAllRoutesIncludeLink().

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void ns3::dsr::RouteCache::PurgeMac ( )

Definition at line 1150 of file dsr-rcache.cc.

References ns3::Timer::Cancel(), ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), m_handleLinkFailure, m_nb, m_ntimer, NS_LOG_LOGIC, and ns3::Timer::Schedule().

Referenced by AddNeighbor(), GetExpireTime(), IsNeighbor(), ProcessTxError(), RouteCache(), and UpdateNeighbor().

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void ns3::dsr::RouteCache::RebuildBestRouteTable ( Ipv4Address source )

USE MAXWEIGHT TO REPRESENT MAX; USE BROADCAST ADDRESS TO REPRESENT NULL PRECEEDING ADDRESS.

The followings are initialize-single-source

The followings are core of dijskra algorithm

The followings are for comparison

Selects the shortest-length route that has the longest expected lifetime (highest minimum timeout of any link in the route) For the computation overhead and complexity Here I just implement kind of greedy strategy to select link with the longest expected lifetime when there is two options

Reverse the route

Definition at line 315 of file dsr-rcache.cc.

References ns3::Ipv4Address::IsBroadcast(), m_bestRoutesTable_link, m_linkCache, m_netGraph, MAXWEIGHT, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_INFO, and PrintVector().

Referenced by AddRoute_Link(), and DeleteAllRoutesIncludeLink().

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void ns3::dsr::RouteCache::RemoveLastEntry ( std::list< RouteCacheEntry > & rtVector )

Definition at line 168 of file dsr-rcache.cc.

References NS_LOG_FUNCTION.

Referenced by AddRoute().

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void ns3::dsr::RouteCache::ScheduleTimer ( )

Definition at line 1176 of file dsr-rcache.cc.

References ns3::Timer::Cancel(), m_ntimer, and ns3::Timer::Schedule().

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

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void ns3::dsr::RouteCache::SetBadLinkLifetime ( Time t )

inline

Definition at line 367 of file dsr-rcache.h.

References m_badLinkLifetime.

void ns3::dsr::RouteCache::SetCacheTimeout ( Time t )

inline

Definition at line 351 of file dsr-rcache.h.

References RouteCacheTimeout.

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

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void ns3::dsr::RouteCache::SetCacheType ( std::string type )

dijsktra algorithm to get the best route from m_netGraph and update the m_bestRoutesTable_link current graph information has changed

Definition at line 289 of file dsr-rcache.cc.

References m_isLinkCache, NS_LOG_FUNCTION, and NS_LOG_INFO.

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

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void ns3::dsr::RouteCache::SetCallback ( Callback< void, Ipv4Address, uint8_t > cb )

inline

Definition at line 531 of file dsr-rcache.h.

References m_handleLinkFailure.

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

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void ns3::dsr::RouteCache::SetInitStability ( Time initStability )

inline

Definition at line 391 of file dsr-rcache.h.

References m_initStability.

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

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void ns3::dsr::RouteCache::SetMaxCacheLen ( uint32_t len )

inline

Definition at line 343 of file dsr-rcache.h.

References m_maxCacheLen.

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

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void ns3::dsr::RouteCache::SetMaxEntriesEachDst ( uint32_t entries )

inline

Definition at line 359 of file dsr-rcache.h.

References m_maxEntriesEachDst.

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

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void ns3::dsr::RouteCache::SetMinLifeTime ( Time minLifeTime )

inline

Definition at line 399 of file dsr-rcache.h.

References m_minLifeTime.

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

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void ns3::dsr::RouteCache::SetStabilityDecrFactor ( uint64_t decrFactor )

inline

Definition at line 375 of file dsr-rcache.h.

References m_stabilityDecrFactor.

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

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void ns3::dsr::RouteCache::SetStabilityIncrFactor ( uint64_t incrFactor )

inline

Definition at line 383 of file dsr-rcache.h.

References m_stabilityIncrFactor.

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

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void ns3::dsr::RouteCache::SetSubRoute ( bool subRoute )

inline

Definition at line 335 of file dsr-rcache.h.

References m_subRoute.

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

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void ns3::dsr::RouteCache::SetUseExtends ( Time useExtends )

inline

Definition at line 407 of file dsr-rcache.h.

References m_useExtends.

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

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void ns3::dsr::RouteCache::UpdateNeighbor	(	std::vector< Ipv4Address >	nodeList,
		Time	expire
	)

Definition at line 1096 of file dsr-rcache.cc.

References LookupMacAddress(), m_nb, ns3::Simulator::Now(), NS_LOG_FUNCTION, NS_LOG_LOGIC, and PurgeMac().

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void ns3::dsr::RouteCache::UpdateNetGraph ( )

Update the Net Graph for the link and node cache has changed.

Definition at line 499 of file dsr-rcache.cc.

References m_linkCache, m_netGraph, and NS_LOG_FUNCTION.

Referenced by AddRoute_Link(), and DeleteAllRoutesIncludeLink().

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bool ns3::dsr::RouteCache::UpdateRouteEntry ( Ipv4Address dst )

Update route cache entry if it has been recently used and successfully delivered the data packet

Parameters

dst	destination address of the route
vec	the route vector

Returns: true in success

Definition at line 176 of file dsr-rcache.cc.

References ns3::dsr::CompareRoutesExpire(), m_sortedRoutes, NS_LOG_DEBUG, NS_LOG_FUNCTION, RouteCacheTimeout, and ns3::dsr::RouteCacheEntry::SetExpireTime().

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

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void ns3::dsr::RouteCache::UseExtends ( RouteCacheEntry::IP_VECTOR rt )

When a link from the Route Cache is used in routing a packet originated or salvaged by that node, the stability metric for each of the two endpoint nodes of that link is incremented by the amount of time since that link was last used. When a link is used in a route chosen for a packet originated or salvaged by this node, the link's lifetime is set to be at least UseExtends into the future

Definition at line 600 of file dsr-rcache.cc.

References IncStability(), m_initStability, m_linkCache, m_nodeCache, m_useExtends, NS_LOG_DEBUG, NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by ns3::dsr::DsrRouting::CheckSendBuffer(), ns3::dsr::DsrRouting::PacketNewRoute(), ns3::dsr::DsrRouting::RouteRequestTimerExpire(), ns3::dsr::DsrRouting::SalvagePacket(), ns3::dsr::DsrRouting::Send(), ns3::dsr::DsrRouting::SendErrorRequest(), ns3::dsr::DsrRouting::SendPacketFromBuffer(), ns3::dsr::DsrRouting::SendRerrWhenBreaksLinkToNextHop(), ns3::dsr::DsrRouting::SendUnreachError(), and ns3::dsr::DsrRouting::UseExtends().

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Member Data Documentation

std::map<Ipv4Address, uint16_t> ns3::dsr::RouteCache::m_ackIdCache

private

Definition at line 566 of file dsr-rcache.h.

Referenced by CheckUniqueAckId(), and GetAckSize().

std::vector<Ptr<ArpCache> > ns3::dsr::RouteCache::m_arp

Definition at line 630 of file dsr-rcache.h.

Referenced by AddArpCache(), DelArpCache(), and LookupMacAddress().

Time ns3::dsr::RouteCache::m_badLinkLifetime

private

Definition at line 546 of file dsr-rcache.h.

Referenced by GetBadLinkLifetime(), and SetBadLinkLifetime().

std::map<Ipv4Address, RouteCacheEntry::IP_VECTOR> ns3::dsr::RouteCache::m_bestRoutesTable_link

private

Definition at line 583 of file dsr-rcache.h.

Referenced by LookupRoute_Link(), and RebuildBestRouteTable().

Time ns3::dsr::RouteCache::m_delay

Definition at line 632 of file dsr-rcache.h.

Referenced by RouteCache().

Callback<void, Ipv4Address, uint8_t > ns3::dsr::RouteCache::m_handleLinkFailure

The following code handles link-layer acks

Definition at line 622 of file dsr-rcache.h.

Referenced by GetCallback(), PurgeMac(), and SetCallback().

Time ns3::dsr::RouteCache::m_initStability

private

Definition at line 552 of file dsr-rcache.h.

Referenced by AddRoute_Link(), DecStability(), GetInitStability(), IncStability(), SetInitStability(), and UseExtends().

bool ns3::dsr::RouteCache::m_isLinkCache

private

Definition at line 568 of file dsr-rcache.h.

Referenced by IsLinkCache(), and SetCacheType().

std::map<Link, LinkStab> ns3::dsr::RouteCache::m_linkCache

private

Definition at line 584 of file dsr-rcache.h.

Referenced by AddRoute_Link(), DeleteAllRoutesIncludeLink(), PurgeLinkNode(), RebuildBestRouteTable(), UpdateNetGraph(), and UseExtends().

uint32_t ns3::dsr::RouteCache::m_maxCacheLen

private

Definition at line 544 of file dsr-rcache.h.

Referenced by GetMaxCacheLen(), and SetMaxCacheLen().

uint32_t ns3::dsr::RouteCache::m_maxEntriesEachDst

private

Definition at line 564 of file dsr-rcache.h.

Referenced by AddRoute(), GetMaxEntriesEachDst(), and SetMaxEntriesEachDst().

Time ns3::dsr::RouteCache::m_minLifeTime

private

Definition at line 553 of file dsr-rcache.h.

Referenced by AddRoute_Link(), GetMinLifeTime(), and SetMinLifeTime().

std::vector<Neighbor> ns3::dsr::RouteCache::m_nb

Definition at line 628 of file dsr-rcache.h.

Referenced by AddNeighbor(), ClearMac(), GetExpireTime(), IsNeighbor(), ProcessTxError(), PurgeMac(), and UpdateNeighbor().

std::map<Ipv4Address, std::map<Ipv4Address, uint32_t> > ns3::dsr::RouteCache::m_netGraph

private

Current network graph state for this node, double is weight, which is calculated by the node information and link information, any time some changes of link cache and node cache change the weight and then recompute the best choice for each node

Definition at line 581 of file dsr-rcache.h.

Referenced by RebuildBestRouteTable(), and UpdateNetGraph().

std::map<Ipv4Address, NodeStab> ns3::dsr::RouteCache::m_nodeCache

private

Definition at line 585 of file dsr-rcache.h.

Referenced by AddRoute_Link(), DecStability(), DeleteAllRoutesIncludeLink(), IncStability(), PurgeLinkNode(), and UseExtends().

Timer ns3::dsr::RouteCache::m_ntimer

Definition at line 626 of file dsr-rcache.h.

Referenced by PurgeMac(), RouteCache(), and ScheduleTimer().

routeEntryVector ns3::dsr::RouteCache::m_routeEntryVector

private

Definition at line 562 of file dsr-rcache.h.