inet::PositionTable Class Reference

This class provides a mapping between node addresses and their positions. More...

#include <PositionTable.h>

Public Member Functions
	PositionTable ()
std::vector< L3Address >	getAddresses () const
bool	hasPosition (const L3Address &address) const
Coord	getPosition (const L3Address &address) const
void	setPosition (const L3Address &address, const Coord &coord)
void	removePosition (const L3Address &address)
void	removeOldPositions (simtime_t timestamp)
void	clear ()
simtime_t	getOldestPosition () const

Private Types
typedef std::pair< simtime_t, Coord >	AddressToPositionMapValue
typedef std::map< L3Address, AddressToPositionMapValue >	AddressToPositionMap

Private Attributes
AddressToPositionMap	addressToPositionMap

Friends
std::ostream &	operator<< (std::ostream &o, const PositionTable &t)

Detailed Description

This class provides a mapping between node addresses and their positions.

Member Typedef Documentation

AddressToPositionMap

typedef std::map<L3Address, AddressToPositionMapValue> inet::PositionTable::AddressToPositionMap

private

AddressToPositionMapValue

typedef std::pair<simtime_t, Coord> inet::PositionTable::AddressToPositionMapValue

private

Constructor & Destructor Documentation

PositionTable()

inet::PositionTable::PositionTable ( )

inline

{}

Member Function Documentation

clear()

void inet::PositionTable::clear

(

)

{
    addressToPositionMap.clear();
}

Referenced by inet::Gpsr::handleCrashOperation(), inet::Gpsr::handleStopOperation(), and inet::Gpsr::initialize().

getAddresses()

std::vector< L3Address > inet::PositionTable::getAddresses

(

)

const

{
    std::vector<L3Address> addresses;
    for (const auto& elem : addressToPositionMap)
        addresses.push_back(elem.first);
    return addresses;
}

Referenced by inet::Gpsr::findGreedyRoutingNextHop(), and inet::Gpsr::getPlanarNeighbors().

getOldestPosition()

simtime_t inet::PositionTable::getOldestPosition

(

)

const

{
    simtime_t oldestPosition = SimTime::getMaxTime();
    for (const auto& elem : addressToPositionMap) {
        const simtime_t& time = elem.second.first;
        if (time < oldestPosition)
            oldestPosition = time;
    }
    return oldestPosition;
}

Referenced by inet::Gpsr::getNextNeighborExpiration().

getPosition()

Coord inet::PositionTable::getPosition

(

const L3Address &

address

)

const

{
    auto it = addressToPositionMap.find(address);
    return (it == addressToPositionMap.end()) ? Coord(NaN, NaN, NaN) : it->second.second;
}

Referenced by inet::Gpsr::findGreedyRoutingNextHop(), inet::Gpsr::getNeighborPosition(), inet::Gpsr::getPlanarNeighbors(), and inet::Gpsr::lookupPositionInGlobalRegistry().

hasPosition()

bool inet::PositionTable::hasPosition

(

const L3Address &

address

)

const

{
    return containsKey(addressToPositionMap, address);
}

removeOldPositions()

void inet::PositionTable::removeOldPositions

(

simtime_t

timestamp

)

{
    for (auto it = addressToPositionMap.begin(); it != addressToPositionMap.end();)
        if (it->second.first <= timestamp)
            addressToPositionMap.erase(it++);
        else
            it++;
 
}

Referenced by inet::Gpsr::purgeNeighbors().

removePosition()

void inet::PositionTable::removePosition

(

const L3Address &

address

)

{
    auto it = addressToPositionMap.find(address);
    addressToPositionMap.erase(it);
}

setPosition()

void inet::PositionTable::setPosition	(	const L3Address &	address,
		const Coord &	coord
	)

{
    ASSERT(!address.isUnspecified());
    addressToPositionMap[address] = AddressToPositionMapValue(simTime(), coord);
}

Referenced by inet::Gpsr::processBeacon(), and inet::Gpsr::storePositionInGlobalRegistry().

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  o, const PositionTable &  t  )

friend

{
    o << "{ ";
    for (auto elem : t.addressToPositionMap) {
        o << elem.first << ":(" << elem.second.first << ";" << elem.second.second << ") ";
    }
    o << "}";
    return o;
}

Member Data Documentation

addressToPositionMap

AddressToPositionMap inet::PositionTable::addressToPositionMap

private

Referenced by clear(), getAddresses(), getOldestPosition(), getPosition(), hasPosition(), inet::operator<<(), removeOldPositions(), removePosition(), and setPosition().

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

• PositionTable.h
• PositionTable.cc