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Overview ¶
Package fastip implements the algorithm that allows to query multiple resolvers, ping all IP addresses that were returned, and return the fastest one among them.
Index ¶
Constants ¶
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const DefaultPingWaitTimeout = 1 * time.Second
DefaultPingWaitTimeout is the default period of time for waiting ping operations to finish.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type FastestAddr ¶
type FastestAddr struct {
// PingWaitTimeout is the timeout for waiting all the resolved addresses
// are pinged. Any ping results received after it are cached but not
// used at the moment. It should be configured right after the
// FastestAddr initialization since it isn't protected for concurrent
// usage.
PingWaitTimeout time.Duration
// contains filtered or unexported fields
}
FastestAddr provides methods to determine the fastest network addresses.
func NewFastestAddr ¶
func NewFastestAddr() (f *FastestAddr)
NewFastestAddr initializes a new instance of the *FastestAddr.
func (*FastestAddr) ExchangeFastest ¶
func (f *FastestAddr) ExchangeFastest(req *dns.Msg, ups []upstream.Upstream) ( resp *dns.Msg, u upstream.Upstream, err error, )
ExchangeFastest queries each specified upstream and returns a response with the fastest IP address. The fastest IP address is considered to be the first one successfully dialed and other addresses are removed from the answer.
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