Resolver.lookupServiceAsync

void lookupServiceAsync(string service,  string protocol,  string domain,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

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

Parameters

`service`	the service type to look up (eg, "ldap")
`protocol`	the networking protocol to use for service (eg, "tcp")
`domain`	the DNS domain to look up the service in
`cancellable`	a #GCancellable, or null
`callback`	callback to call after resolution completes