CDNSNameCache Class Reference

#include <DNSNameCache.h>

Public Member Functions
void	Add (const std::string &strHostName, const std::string &strIpAddress)
	Add the IP for a hostname to the cache. From the time of adding it stays in the cache for TTL.
void	AddPermanent (const std::string &strHostName, const std::string &strIpAddress)
	Add the IP for a hostname to the cache indefinitely.
bool	GetCached (const std::string &strHostName, std::string &strIpAddress) const
	Get an IP for a hostname from the cache.
bool	Lookup (const std::string &strHostName, std::string &strIpAddress)
	Get the IP for the hostname from the cache or query it form the DNS.

Member Function Documentation

Add()

void CDNSNameCache::Add	(	const std::string &	strHostName,
		const std::string &	strIpAddress
	)

Add the IP for a hostname to the cache. From the time of adding it stays in the cache for TTL.

Parameters

strHostName	The hostname
strIpAddress	The IP for that hostname. Can be IPv4 or IPv6

AddPermanent()

void CDNSNameCache::AddPermanent	(	const std::string &	strHostName,
		const std::string &	strIpAddress
	)

Add the IP for a hostname to the cache indefinitely.

Parameters

strHostName	The hostname
strIpAddress	The IP for that hostname. Can be IPv4 or IPv6

GetCached()

bool CDNSNameCache::GetCached	(	const std::string &	strHostName,
		std::string &	strIpAddress
	)		const

Get an IP for a hostname from the cache.

Parameters

	strHostName	The hostname to look up
[out]	strIpAddress	Contains the IP for the hostname if the info is in the cache, otherwise unchanged

Returns

true if the IP is cached

Lookup()

bool CDNSNameCache::Lookup	(	const std::string &	strHostName,
		std::string &	strIpAddress
	)

Get the IP for the hostname from the cache or query it form the DNS.

If a successful DNS query was performed the result is added to the cache for the duration of TTL

Parameters

	strHostName	The hostname to look up
[out]	strIpAddress	Contains the IP for the hostname if the info can be provided, otherwise unchanged

Returns

true if the IP is cached or the DNS query was successful

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

• DNSNameCache.h
• DNSNameCache.cpp