| T
| (all) the type of facility. There are three facility
types:
- q
- message queue
- m
- shared memory segment
- s
- semaphore
|
| ID
| (all) the identifier for the facility entry.
|
| KEY
| (all) the key used as a parameter to the msgget
subroutine, the semget subroutine, or the shmget
subroutine to make the facility entry.
Note: The key of a shared memory segment is changed to
IPC_PRIVATE when the segment is removed until all processes attached to
the segment detach from it.
|
| MODE
| (all) the facility access modes and flags. The mode
consists of 11 characters that are interpreted as follows:
The first two characters can be
the following:
- R
- If a process is waiting on a msgrcv system call.
- S
- If a process is waiting on a msgsnd system call.
- D
- If the associated shared memory segment has been removed. It
disappears when the last process attached to the segment detaches it.
- C
- If the associated shared memory segment is to be cleared when the first
attach is run.
- -
- If the corresponding special flag is not set.
The next nine characters are
interpreted as three sets of 3 bits each. The first set refers to the
owner's permissions; the next to permissions of others in the user
group of the facility entry; and the last to all others. Within
each set, the first character indicates permission to read, the second
character indicates permission to write or alter the facility entry, and the
last character is currently unused.
The permissions are indicated as
follows:
- r
- If read permission is granted.
- w
- If write permission is granted.
- a
- If alter permission is granted.
- -
- If the indicated permission is not granted.
|
| OWNER
| (all) The login name of the owner of the facility
entry.
|
| GROUP
| (all) The name of the group that owns the facility
entry.
|
| CREATOR
| (a,c) The login name of the creator of the facility
entry.
|
| CGROUP
| (a,c) The group name of the creator of the facility
entry.
Note: For the OWNER, GROUP,
CREATOR, and CGROUP, the user and group IDs display instead
of the login names.
|
| CBYTES
| (a,o) The number of bytes in messages currently
outstanding on the associated message queue.
|
| QNUM
| (a,o) The number of messages currently outstanding
on the associated message queue.
|
| QBYTES
| (a,b) The maximum number of bytes allowed in
messages outstanding on the associated message queue.
|
| LSPID
| (a,p) The ID of the last process that sent a
message to the associated queue. If the last message sent was from a
process in a node other than the node that holds the queue, LSPID
is the PID of the kernel process that actually placed the message on the
queue, not the PID of the sending process.
|
| LRPID
| (a,p) The ID of the last process that received a
message from the associated queue. If the last message received was
from a process in a node other than the node that holds the queue,
LRPID is the PID of the kernel process that actually received the
message on the queue, not the PID of the receiving process.
|
| STIME
| (a,t) The time when the last message was sent to
the associated queue. For remote queues, this is the server
time. No attempt is made to compensate for time-zone differences
between the local clock and the server clock.
|
| RTIME
| (a,t) The time when the last message was received
from the associated queue. For remote queues, this is the server
time. No attempt is made to compensate for any time-zone differences
between the local clock and the server clock.
|
| CTIME
| (a,t) The time when the associated entry was
created or changed. For remote queues, this is the server time.
No attempt is made to compensate for any time-zone differences between the
local clock and the server clock.
|
| NATTCH
| (a,o) The number of processes attached to the
associated shared memory segment.
|
| SEGSZ
| (a,b) The size of the associated shared memory
segment.
|
| CPID
| (a,p) The process ID of the creator of the shared
memory entry.
|
| LPID
| (a,p) The process ID of the last process to attach
or detach the shared memory segment.
|
| ATIME
| (a,t) The time when the last attach was completed
to the associated shared memory segment.
|
| DTIME
| (a,t) The time the last detach was completed on the
associated shared memory segment.
|
| NSEMS
| (a,b) The number of semaphores in the set
associated with the semaphore entry.
|
| OTIME
| (a,t) The time the last semaphore operation was
completed on the set associated with the semaphore entry.
|
| -a
| Uses the -b, -c, -o, -p and
-t flags.
|
| -b
| Writes the maximum number of bytes in messages on queue for message
queues, the size of segments for shared memory, and the number of semaphores
in each semaphores set.
|
| -c
| Writes the login name and group name of the user that made the
facility.
|
| -CCoreFile
| Uses the file specified by the CoreFile parameter in place of
the /dev/mem file. The CoreFile parameter is a
memory image file produced by the Ctrl-(left)Alt-Pad1 key sequence.
|
| -m
| Writes information about active shared memory segments.
|
| -NKernel
| Uses the specified Kernel (the /usr/lib/boot/unix
file is the default).
|
| -o
| Writes the following usage information:
- Number of messages on queue
- Total number of bytes in messages in queue for message
queues
- Number of processes attached to shared memory segments
|
| -p
| Writes process number information:
- Process number of the last process to receive a message on
message queues
- Process number of last process to send a message on message queues
- Process number of the creating process
- Process number of last process to attach or detach on
shared memory segments
|
| -q
| Writes information about active message queues.
|
| -s
| Writes information about active semaphore set.
|
| -t
| Writes time information:
- Time of the last control operation that changed the access
permissions for all facilities
- Time of the last msgsnd and
msgrcv on message queues
- Time of the last shmat and shmdt
on shared memory
- Time of the last semop on semaphore sets
|