Applicable release versions: AP, R83
|Description||four locks specifically associated with the spooler: the "master", "input", "form" and "permanent element (or entry)".
If a lock is not set, the literal "###" appears in the location.
If a lock is set, the port.number of the process holding the lock is displayed by the "list-locks" command.
"mq" is the "master queue" lock. It is locked by the Spooler process when altering any of its tables, such as when a printer is being started.
"iq" is the "input queue" lock. It indicates the maximum number of jobs that may be open at once. The limit is about 650 "permanent" (hold-type) entries.
"fq" is the "form queue" lock. It is locked whenever a form queue is attached to a printer.
"peq" is the "printer element queue" lock. It is locked briefly by each user as the first byte of a Spooler entry is produced.