FingerTable Class Reference

#include <FingerTable.h>

List of all members.

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Detailed Description

Finger table module.

This modul contains the finger table of the Chord implementation.

Author:

Markus Mauch, Ingmar Baumgart

See also:

Chord

Public Member Functions
virtual int	numInitStages () const
virtual void	initialize (int stage)
virtual void	handleMessage (cMessage *msg)
virtual void	initializeTable (uint size, NodeHandle owner)
	Sets up the finger table.
virtual void	setFinger (uint pos, NodeHandle node)
	Sets a particular finger to point to node.
virtual const NodeHandle &	getFinger (uint pos)
	Returns the NodeHandle of a particular finger.
virtual uint	getSize ()
	Returns the size of the finger table.
Protected Attributes
std::vector< NodeHandle >	fingerTable
	the finger table vector

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Member Function Documentation

const NodeHandle & FingerTable::getFinger

(

uint

pos

)

[virtual]

Returns the NodeHandle of a particular finger.

Parameters:

pos

number of the finger to get

Returns:

NodeHandle of the particular finger

{
    if (pos >= fingerTable.size())
        error("Index out of bound (FingerTable, getFinger())");

    return fingerTable[pos];
}

uint FingerTable::getSize

(

)

[virtual]

Returns the size of the finger table.

Returns:

number of fingers

{
    return fingerTable.size();
}

void FingerTable::handleMessage

(

cMessage *

msg

)

[virtual]

{
    error("this module doesn't handle messages, it runs only in initialize()");
}

void FingerTable::initialize

(

int

stage

)

[virtual]

{
    // because of IPAddressResolver, we need to wait until interfaces
    // are registered, address auto-assignment takes place etc.
    if(stage != MIN_STAGE_OVERLAY)
        return;

    WATCH_VECTOR(fingerTable);
}

void FingerTable::initializeTable	(	uint	size,
		NodeHandle	owner
	)			[virtual]

Sets up the finger table.

Sets up the finger table and makes all fingers pointing to the node itself. Should be called on startup to initialize the finger table.

Parameters:

	size	number of fingers
	owner	set all fingers to the key of node handle owner

{
    fingerTable.assign(size, owner);
}

virtual int FingerTable::numInitStages

(

)

const [inline, virtual]

    {
        return MAX_STAGE_OVERLAY + 1;
    }

void FingerTable::setFinger	(	uint	pos,
		NodeHandle	node
	)			[virtual]

Sets a particular finger to point to node.

Parameters:

	pos	number of the finger to set
	node	set finger to this node

{
    if (pos < fingerTable.size()) {
        fingerTable[pos] = node;
    } else {
        error("Index out of bound (FingerTable, setFinger())");
    }
}

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Member Data Documentation

std::vector<NodeHandle> FingerTable::fingerTable [protected]

the finger table vector

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

• FingerTable.h
• FingerTable.cc

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