Begins asynchronously performing a DNS SRV lookup for the given
service and protocol in the given domain, and eventually calls
callback, which must call Resolver.lookupServiceFinish to
get the final result. See Resolver.lookupService for more
details.
Begins asynchronously performing a DNS SRV lookup for the given service and protocol in the given domain, and eventually calls callback, which must call Resolver.lookupServiceFinish to get the final result. See Resolver.lookupService for more details.