New returns an instance of Clients.

NewClient returns a new instance of Client.

NewClientStub returns an instance of Client with basic initializations.

ErrConnectionClosed is returned when operating on a closed connection and/or when no error cause has been given.

Client contains information about a client known by the broker.

Clients contains a map of the clients known by the broker.

Inflight is a map of InflightMessage keyed on packet id.

InflightMessage contains data about a packet which is currently in-flight.

LWT contains the last will and testament details for a client connection.

State tracks the state of the client.