ExcludePrefix is a IPFilter function that filters IPs that start with prefix.

IPV4Only is an IPFilter function that filters out non IPv4 address.

Latency does a TCP dial to host and return the amount of time it took to get a response or an error if it fails to connect.

NewSorter create a new LatencySorter that will sort endpoints by latency you can controle the concurrency by tuning the worker value.

Result is the struct return by the LatencySorter.

Sorter lets you get the latency from a list of endpoint and return an ascending sorted list of endpoint.

IPFilter is function used by Sorted to filters out IP address during the latency test.