list-locks command

The list-locks BASIC program displays the current status of all system, FlashBASIC, spooler, group, and item locks.

All locks display automatically unless one or more of the available options is provided with the command.

Syntax

 list-locks {-options} {(options}

Parameter(s)

-options help Shows the help text.
computer D3 Windows only: Includes the computer name in the report.
hostfsi <host> D3 Windows only: Shows the locks on given FSI host.
hostvme <host> Shows the locks on a given OSFI host.
time Includes the date and time the item lock was set.

The -hostvme option does not support -time.

(options ? Shows the help text.
a Shows the txlog producer lock.
b Shows BASIC locks.
c Shows the txlog consumer lock.
g Shows VME group locks.
i Shows local FSI and VME item locks.
m Shows phantom locks.
n Returns the output in a non-paginated form.

Does not pause at page breaks.

p Directs output results to the system printer.
q Shows spooler locks.
s Shows system locks.
t Shows txlog locks.

Description

Using list-locks shows both the VME and FSI item locks.

File locks are special item locks that affect the whole file. These locks prevent any updates or normal item locks to a file while in effect. File locks display in the item lock listing as having item-IDs of an asterisk and hashes of zero. These locks are set with the BASIC filelock statement.

When displaying item locks (by using the i option), it is optionally possible to display the locks of a remote D3 machine by specifying the host name. If an asterisk is specified for the host name, then the list-locks command attempts to list the locks on all remote hosts.

Filtering -options

When using filters, only lock entries satisfying at least one value for each filter will be included in the report.

The individual values for a given filter are joined by a logical or, while multiple filters are joined together by a logical and. That is, (<file 1> or <file 2> or <file ...>) AND (<pib#1> or <pib#2> or <pib#...>)

You can use the following to filter -options:
  • -file <file 1> <file 2> ...
    • VME files: Use the name of the level at which the lock is set.

      For example, if a lock is set on an item in dict resizing then use -file resizing

    • FSI files: Use the full path.

      For example, -file account,dict,data

  • -pib <pib#1> <pib#2> ...

Report headings

The report includes the following headings:

System locks are the 4 internal system locks used during saves:

### Lock position is unused
1 Overflow
3 Unique id (for example, system(19))
4 Item lock table
9 User-exits u0191, u1191, u2191, and u3191

Basic locks are the 992 BASIC program execution locks (used by BASIC programs):

### Lock position is unused.
nnn Port number using this lock position.

Spooler locks are the internal spooler locks:

mq Secondary queue lock
iq Input queue lock
fq Forms queue lock
peq Permanent entry queue lock
msp Master queue lock

Group locks:

nnnnn Frame-ID (in decimal).
(nnnnnn) Frame-ID (in hexadecimal).
PIB# The PIB number (port) that has the item locked.
Lvl The level on which this group is locked.
Type The type of group lock. This can be either read-only (Rdo) or update (Upd).
Filename The file in which the group exists.

Item locks:

nnnnn Frame-ID (in decimal).
(nnnnnn) Frame-ID (in hexadecimal).
PIB# The PIB number (port) that has the item locked.
Lvl The level on which this item is locked.
Hash The locked item’s hash code.
Type The utility that is running the program.
Item-ID The Item-ID that is currently locked.
Filename The name of the file where the item resides.
Token The unique identifier for that item.

Transaction Log locks:

fof The lock that is set when altering the file-of-files number counter.
pro The lock that is set when accessing the producer side of the transaction log queue.
con The lock that is set when accessing the consumer side of the transaction log queue.

Phantom locks:

rel Release Queue lock
job Phantom job lock
pib PIB table lock
que Queue lock
plk General Phantom lock

Example(s)

Example 1

This example shows lock entries displayed for the VME file bp, or the FSI files bigdata,gps,gps or bigdata,rfid,rfid that are owned by any of the PIBs 3 7 12.

  
 list-locks -file bp bigdata,gps,gps bigdata,rfid,rfid -pib 3 7 12

Example 2

This example shows item locks displayed on the OSFI server referenced by the dm,hosts, item myremoteserver that are owned by PIB 33.

 
 list-locks -hostvme myremoteserver -pib 33

Example 3

This example shows item locks displayed on the OSFI server referenced by the dm,hosts, item myremoteserver and on the FSI server with the network hostname of mybackupfsiserver.

 
 list-locks -hostfsi mybackupfsiserver -hostvme myremoteserver 

Example 4

In this example, only the current item locks are shown.

 
 list-locks (i

 Item    Locks     PIB#   Lvl   Hash   item-ID               Filename
 5834    (0016CA)  54     0     7E2C   21086                 orders 
 2746    (000ABA)  68     0     0D1F   roy/month2            memos
 183325  (02CC1D)  29     1     5DD7   3242                  entity
 183197  (02CB9D)  22     2     7D9F   20946                 entity
 184453  (02D085)  66     0     279F   73291176              entity
 110819  (01B0E3)  42     0     084D   tcl.list-locks        d3.doc
 110908  (01B13C)  3      0     3E36   data.representation   d3.doc
 133899  (020B0B)  82     0     6C2C   monitor               status

Example 5

In this example, all locks are shown.

 
 list-locks
 System Locks
    0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F
 00 ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###

 Basic Locks
    0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F
 00 ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###  ###
 Spooler Locks
    mq    iq    fq    peq   msp
 00 ###   ###   ###   ###   ###

 Txlog Locks
 
    fof   pro   con
 00 ###   ###   ###

 Phantom Locks
    rel   job   pib   que   plk
 00 ###   ###   ###   ###   ###

 Group Locks               PIB#   Lvl   Type   Filename
 442384     (06C00F)       13     1     Upd    xsym

 Item Locks                PIB#   Lvl   Hash       item-ID   Filename
 123034     (01E09A)       23     1     54B898A5   wm        email
 79174      (013546)       57     0     9472A038   hv        tcl-stack

 FSI Filename              PIB#   Lvl   Type       item-ID   Token
 DM,basicprogram,ba        3      0     VME        newfile    79309092
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