UDNSCache

UDNSCache is a PowerPlant class that is used for a local cache for DNS entries.

Methods :

The methods in this class are:

AddToDNSCache()	CheckCache()
CreateDNSCacheElem()	GetAddressFromCache()
GetNameFromCache()

Data Members:

The data members in this class are:

sOTDNSNameCache

sOTDNSAddressCache

Source files:

(Networking Classes)

UDNSCache.h

UDNSCache.cp

AddToDNSCache()

Purpose:

Add an entry to the DNS cache.

Access :

Static, Public

Prototype:

static void AddToDNSCache( UInt32 inHostIP, 

The parameters for this method are:

UInt32	inHostIP	The host IP address.
ConstStringPtr	inHostName	The host name string.

Return:

None

CheckCache()

Purpose:

Verify the cache.

Access :

Static, Public

Prototype:

static void CheckCache();

None

Return:

None

CreateDNSCacheElem()

Purpose:

Create a DNS cache element.

Access :

Static, Protected

Prototype:

static void CreateDNSCacheElem(UInt32 inHostIP, 

	ConstStringPtr inHostName, 

The parameters for this method are:

UInt32	inHostIP	The host IP address.
ConstStringPtr	inHostName	The host name string.
SDNSCacheElem&	outElem	The element.

Return:

None

GetAddressFromCache()

Purpose:

Retrieve a DNS entry from the cache.

Access :

Static, Public

Prototype:

static Boolean GetAddressFromCache( 

	LStr255& outHostName );

The parameters for this method are:

UInt32	inHostIP	The host IP address.
LStr255&	outHostName	The host name string.

Return:

None

GetNameFromCache()

Purpose:

Retrieve a DNS name from the cache.

Access :

Static, Public

Prototype:

static UInt32 GetNameFromCache(ConstStringPtr 
inHostName);

The parameters for this method are:

ConstStringPtr

inHostName

The host name string.

Return:

Returns the IP address if found in the cache. If not found, returns zero.

sOTDNSNameCache

Purpose:

The name cache array.

Access :

Static, Private

Prototype:

static LArray* sOTDNSNameCache;

sOTDNSAddressCache

Purpose:

The address cache array.

Access :

Static, Private

Prototype:

static LArray* sOTDNSAddressCache;