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z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

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ipcs<br />

Table 14. Explanation of the ipcs <strong>Command</strong> Listing (continued)<br />

Column Heading Meaning of the Column<br />

CGROUP (a,c) The group name or group ID of the creator of the facility<br />

entry.<br />

CBYTES (a,x,o) The number of bytes in messages currently outstanding on<br />

the associated message queue.<br />

INFO (x) Provides additional extended state information. Under this<br />

field will be returned one or more of the following codes<br />

(codes are not mutually exclusive unless noted):<br />

For shared memory output:<br />

M megaroo<br />

For semaphore output:<br />

P PLO in use. Mutually exclusive with L.<br />

L Latch in use. Mutually exclusive with P.<br />

B Binary semaphore.<br />

For message queue output:<br />

P PLO in use. Mutually exclusive with L.<br />

L Latch in use. Mutually exclusive with P.<br />

R RCV type PID.<br />

S Send type PID.<br />

1 PLO1 flag on––IPC_PLO1 set on msgget()<br />

2 PLO2 flag on––IPC_PLO2 set on msgget()<br />

QNUM (a,o) The number of messages currently outstanding on the<br />

associated message queue.<br />

QBYTES (a,b) The maximum number of bytes allowed in messages<br />

outstanding on the associated message queue.<br />

LSPID (p) The ID of the last process that sent a message to the<br />

associated queue.<br />

LRPID (p) The ID of the last process that received a message from the<br />

associated queue.<br />

STIME (a,t) The time when the last message was sent to the associated<br />

queue.<br />

RTIME (a,t) The time when the last message was received from the<br />

associated queue.<br />

CTIME (a,t) The time when the associated entry was created or<br />

changed.<br />

NATTCH (a,o) The number of processes attached to the associated shared<br />

memory segment.<br />

SEGSZPG (a,b,x) The size in pages of the associated shared memory<br />

segment.<br />

PGSZ (a,b,x) The page size of the associated shared memory segment.<br />

SEGSZ (a,b,x) The size in bytes of the associated shared memory<br />

segment.<br />

CPID (p) The process ID of the creator of the shared memory entry.<br />

LPID (p) The process ID of the last process to attach or detach the<br />

shared memory segment.<br />

ATIME (a,t) The time when the last attach was completed to the<br />

associated shared memory segment.<br />

322 z/<strong>OS</strong> <strong>V1R9.0</strong> <strong>UNIX</strong> <strong>System</strong> <strong>Services</strong> <strong>Command</strong> Reference

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