DisconnectAsync about cppserver HOT 1 OPEN

In your case the best choose is to call DisconnectAsync() and your connection will be disconnected asynchronously very soon and all data will be transferred to the peer. If you call Disconnect() it will close the socket immediately with possible data lost. Delay with Sleep() will not work because you need to leave onSent() handler and let working loop do its job (wait to send all data and then disconnect).

Call Disconnect() only in socket synchronous scenarios with socket blocking methods call (Connect()/Send()/Receive())

from cppserver.