next_async

Description:

public virtual async SocketAddress? next_async (Cancellable? cancellable = null) throws Error

Asynchronously retrieves the next SocketAddress from this and then calls callback, which must call next_async.end to get the result.

It is an error to call this multiple times before the previous callback has finished.

this	a SocketAddressEnumerator
cancellable	optional Cancellable object, null to ignore.
callback	a TaskReadyCallback to call when the request is satisfied
user_data	the data to pass to callback function