2.4 Gestion des IPCS

IPCS

Afficher les files de message

 # ipcs -q

Afficher les mémoires partagées

 # ipcs -m

Afficher les sémaphores

 # ipcs -s

Tout afficher

 # ipcs -a

 IPC status from /dev/kmem as of Fri May 18 10:34:02 2012
 T         ID     KEY        MODE        OWNER     GROUP   CREATOR    CGROUP CBYTES  QNUM QBYTES LSPID LRPID   STIME    RTIME    CTIME
 Message Queues:
 q          0 0x3c1829cc -Rrw--w--w-      root      root      root      root     0     0  32768     0     0 no-entry no-entry 11:44:35
 q          1 0x3e1829cc --rw-r--r--      root      root      root      root     0     0    264     0     0 no-entry no-entry 11:44:35
 T         ID     KEY        MODE        OWNER     GROUP   CREATOR    CGROUP NATTCH      SEGSZ  CPID  LPID   ATIME    DTIME    CTIME
 Shared Memory:
 m          0 0x4118297d --rw-rw-rw-      root      root      root      root      0        348  1567  1567 11:44:42 11:44:42 11:44:36
 m          1 0x4e0c0002 --rw-rw-rw-      root      root      root      root      2      61760  1567  1569 11:44:42 11:44:42 11:44:36
 m          2 0x411c001d --rw-rw-rw-      root      root      root      root      2       8192  1567  1569 11:44:42 11:44:36 11:44:36
 m       5123 0x06347849 --rw-rw-rw-      root      root      root      root      2      65544  2399  2445 11:49:48 11:49:41 11:49:40
 m       2052 0x0c6629c9 --rw-r-----      root      root      root      root      4   18995752  2411  5010  0:02:47 21:53:13 11:49:41
 m       4101 0x4914003e --rw-r--r--      root      root      root      root      0      22908  2404  2445 10:34:00 10:34:00 11:49:47
 m    3178502 0x011d0ec0 --rw-rw-rw-      root      root      root      root      2       1002 22760 20573 22:43:21 no-entry 22:43:21
 T         ID     KEY        MODE        OWNER     GROUP   CREATOR    CGROUP NSEMS   OTIME    CTIME
 Semaphores:
 s          0 0x4118297d --ra-ra-ra-      root      root      root      root     1 11:44:42 11:44:36
 s          1 0x4e0c0002 --ra-ra-ra-      root      root      root      root     2 11:44:38 11:44:36
 s          2 0x411c001d --ra-ra-ra-      root      root      root      root     2 11:44:42 11:44:36
 s          3 0x00446f6e --ra-r--r--      root      root      root      root     1 no-entry 11:44:45

Supprimer un IPCS

Un message

 # ipcrm -q $MSG_ID

Une mémoire partagé

 # ipcrm -m SHM_ID

Un semaphore

 # ipcrm -s $SEM_ID