DTN::RoutedForwarding Class Reference

ForwardingPolicy subclass that uses a routing table. More...

#include <dtn/RoutedForwarding.h>

Inheritance diagram for DTN::RoutedForwarding:

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Collaboration diagram for DTN::RoutedForwarding:

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List of all members.

Public Types
typedef std::list< BundlePointer >	BundlePointerList
	A collection of BundlePointers queued up for a Link.
typedef std::map< const Link *, BundlePointerList >	BundleCache
	A mapping between Links and their BundlePointer queues.
Public Member Functions
	RoutedForwarding (Node *owner)
	Constructor.
virtual	~RoutedForwarding ()
	Virtual destructor.
void	cache (BundlePointer &p)
	Cache information about a newly stored Bundle for faster access.
bool	forward (Bundle *b)
	Attepmt to forward a Bundle.
Bundle *	forwardOn (const Link &l)
	Attepmt to forward along a Link that has become available.
virtual void	addRouting (RoutingTable *table)
	Add a routing table to the forwarding policy.
Protected Member Functions
virtual Link &	target (const Bundle &b)
	Find the appropriate route to reach a given destination.
virtual void	protected_set ()
	If the policy object needs to do anything when a BundleStore changes, this should be overridden.

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Detailed Description

ForwardingPolicy subclass that uses a routing table.

It employs simple FIFO scheduling.

Definition at line 46 of file RoutedForwarding.h.

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Member Function Documentation

void RoutedForwarding::cache

(

BundlePointer &

p

)

[virtual]

Cache information about a newly stored Bundle for faster access.

By default, nothing is done. Derived classes may override this.

Parameters:

p

A reference to a Bundle in the BundleStore

Reimplemented from DTN::ForwardingPolicy.

Definition at line 44 of file RoutedForwarding.cc.

References DTN::BundlePointerRepr::bundle(), DTN::BundlePointer::repr(), and target().

bool RoutedForwarding::forward

(

Bundle *

b

)

[virtual]

Attepmt to forward a Bundle.

Concrete derived classes must implement this.

Parameters:

b

A Bundle to forward

Return values:

	true	b was forwarded
	false	b was not forwarded and should be considered for local storage

Implements DTN::ForwardingPolicy.

Definition at line 60 of file RoutedForwarding.cc.

References DTN::Link::available(), DTN::NodePolicy::m_owner, DTN::Node::send(), and target().

Bundle * RoutedForwarding::forwardOn

(

const Link &

l

)

[virtual]

Attepmt to forward along a Link that has become available.

Concrete derived classes must implement this.

Parameters:

l

A Link capable of transmitting a new Bundle

Returns:

a Bundle to forward

Implements DTN::ForwardingPolicy.

Definition at line 85 of file RoutedForwarding.cc.

References DTN::BundlePointerRepr::bundle(), DTN::NodePolicy::m_owner, DTN::Node::remove(), DTN::BundlePointer::repr(), and DTN::Node::validate().

void RoutedForwarding::addRouting

(

RoutingTable *

table

)

[virtual]

Add a routing table to the forwarding policy.

If there is an existing table, it is replaced with the new one. The policy does not take ownership of the table

Parameters:

table

The new routing table

Definition at line 113 of file RoutedForwarding.cc.

Referenced by RoutingEntity::generatePolicy().

Link & RoutedForwarding::target

(

const Bundle &

b

)

[protected, virtual]

Find the appropriate route to reach a given destination.

Parameters:

b

The Bundle is being sent

Returns:

the link on which to forward the Bundle

Definition at line 120 of file RoutedForwarding.cc.

References DTN::RoutingTable::target().

Referenced by cache(), and forward().

void RoutedForwarding::protected_set

(

)

[protected, virtual]

If the policy object needs to do anything when a BundleStore changes, this should be overridden.

Reimplemented from DTN::NodePolicy.

Definition at line 133 of file RoutedForwarding.cc.

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

• dtn/RoutedForwarding.h
• dtn/RoutedForwarding.cc

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