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LocalPrefAttribute Class Reference

LocalPrefAttribute is a well-known uint32. More...

#include <path_attribute.hh>

Inheritance diagram for LocalPrefAttribute:
PathAttribute NONCOPYABLE

List of all members.

Public Member Functions

 LocalPrefAttribute (const uint32_t localpref)
 LocalPrefAttribute.
 LocalPrefAttribute (const uint8_t *d) throw (CorruptMessage)
PathAttributeclone () const
 Make a copy of the current attribute.
string str () const
 We need to encode an attribute to send to a peer.
uint32_t localpref () const
bool encode (uint8_t *buf, size_t &wire_size, const BGPPeerData *peerdata) const
 encode a path attribute.

Static Public Member Functions

static uint32_t default_value ()

Private Attributes

uint32_t _localpref

Detailed Description

LocalPrefAttribute is a well-known uint32.


Member Function Documentation

PathAttribute * LocalPrefAttribute::clone ( ) const [virtual]

Make a copy of the current attribute.

The derived class should use new to generate a copy of itself. The wire format representation will not be used by the caller.

Implements PathAttribute.

bool LocalPrefAttribute::encode ( uint8_t *  buf,
size_t &  wire_size,
const BGPPeerData peerdata 
) const [virtual]

encode a path attribute.

In a sane world, we'd use a virtual function for this. But we store so many path attributes that we can't afford the overhead of a virtual function table for them, so we have to do this the hard way

XXX THE ABOVE IS NO LONGER THE CASE. WE SHOULD REWRITE THIS TO USE VIRTUAL FUNCTIONS

Implements PathAttribute.

string LocalPrefAttribute::str ( ) const [virtual]

We need to encode an attribute to send to a peer.

However we only have the canonically encoded byte stream data for it. Sometimes that is fine, and we should just send that; sometimes we need to decode and re-encode for this specific peer.

Reimplemented from PathAttribute.


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