NSXPCListener class and its delegate are responsible for waiting for new incoming connections, configuring them, and accepting or rejecting them.
- macOS 10.8+
Each XPC service, launchd agent, or launchd daemon typically has at least one
NSXPCListener object that listens for connections to a specified service name. Each listener must have a delegate that conforms to the
NSXPCListener protocol. When the listener receives a new connection request, it creates a new
NSXPCConnection object, then asks the delegate to inspect, configure, and resume the connection object by calling the delegate's