Function register 

pub fn register(reg_type: &str, port: u16) -> Result<Registration>

Register a service

• reg_type: the service type followed by the protocol, separated by a dot (for example, “_ssh._tcp”). For details see DNSServiceRegister
• port: The port (in native byte order) on which the service accepts connections. Pass 0 for a “placeholder” service.
• handle: the tokio event loop handle

Uses register_extended with default RegisterData.

See DNSServiceRegister.

Example

let mut registration = async_dnssd::register("_ssh._tcp", 22)?;
let result = registration.next().await.expect("no stream end")?;