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THashKeyIp6 Class Reference

class THashKeyIp6 : public MHashKey

A hash key based on IPv6 addresses. There are three operation modes:

each IP address forms its own equivalence class.
IP addresses in the same network belong to the same equivalence class Since we often do not have the information about the network masks at the destination, we have to do some kind of assumptions. Therefore, IPv6 addresses are considered to have /64 prefix and IPv4 addresses have /24 prefix. (Note that occasionally having slightly wrong network prefixes here is not too bad a failure, if the general direction is correct).
Addresses delivered via a particular network interface belong to the same equivalence class. Here we have unsolved implementation issues and other considerations, so presently this remains a TODO item. Motivation of this is the assumption that in the GPRS world the last-hop wireless link is the bottleneck that determines the TCP connection characteristics.

Inherits from

THashKeyIp6
- MHashKey

Public Member Functions
	THashKeyIp6 ()
	THashKeyIp6 ( TKeyMode , const TInetAddr &)
const TIp6Addr &	Ip6Address ()
TBool	IsEqual (const MHashKey &)
TUint32	ScopeId ()
TUint	ToInt ()

Public Member Enumerations
enum	TKeyMode { EPerHost , EPerNet , EPerIface }

Private Attributes
TIp6Addr	iAddress
TKeyMode	iKeyMode
TUint32	iScopeId

Constructor & Destructor Documentation

THashKeyIp6()

THashKeyIp6

(

)

[inline]

THashKeyIp6(TKeyMode, const TInetAddr &)

THashKeyIp6	(	TKeyMode	aMode,
		const TInetAddr &	aAddr
	)

Parameters

TKeyMode aMode
const TInetAddr & aAddr

Member Functions Documentation

Ip6Address()

const TIp6Addr &

Ip6Address

(

)

const [inline]

IsEqual(const MHashKey &)

TBool

IsEqual

(

const MHashKey &

aKey

)

[virtual]

Return ETrue if this key is considered equal to the another key. Equality can be a non-trivial concept, as can be seen in the implementation of THashKeyIp6 that implements this virtual class.