The port monitor enters the stopping state. No further service requests are accepted.
Any attempt to re-enable the port monitor is ignored.
The port monitor yields control of all ports for which it is responsible. A new instantiation of the port monitor must be able to start correctly while a previous instantiation is stopping.
The advisory lock on the process ID file is released. After this lock is released, the contents of the process ID file are undefined and a new invocation of the port monitor can be started.