This method is provided for subclasses that have custom types of
- iOS 2.0+
- macOS 10.0+
- tvOS 9.0+
- watchOS 2.0+
The last instant that a message may be sent.
The message ID.
The message components.
The receive port.
The number of bytes reserved for the header.
NSConnection calls this method at the appropriate times. This method should not be called directly. This method could raise an
NSInvalid, or an
NSPort, depending on the type of send port and the type of error.