02-07-2013
I've never had to use file descriptors in the past. Today, i've learned something very useful.
Thank You Alister, it works perfectly
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In Aix system Someone know i want to cancel the massage. if some user print something and user root deleting the job i got brodcast message " message from queueing system job number XXX has been deleteing from queue. <EOT> "
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pipcrm(1) General Commands Manual pipcrm(1)
NAME
pipcrm - remove a POSIX message queue or a POSIX named semaphore
SYNOPSIS
[option]...
DESCRIPTION
The command removes one or more specified POSIX message queue or POSIX named semaphore.
Options
The identifiers are specified by the following options:
Unlinks the queue name from the message queue
specified by the argument, msqname. If there are no processes with existing open descriptors for the message queue,
the queue is destroyed. If one or more processes have the message queue open, the removal of the queue is postponed
until all descriptors for the queue have been closed.
Unlinks the semaphore name from the semaphore
specified by the argument, semname. If there are no processes with existing open descriptors for the semaphore, the
semaphore is destroyed. If one or more processes have the semaphore open, the removal of the semaphore is postponed
until all descriptors for the semaphore have been closed.
The details of the removals are described in mq_unlink(2), and sem_unlink(2). The names can be found by using (see pipcs(1)).
SEE ALSO
pipcs(1), mq_unlink(2), mq_open(2), mq_send(2), mq_receive(2), sem_unlink(2), sem_open(2), sem_wait(2), sem_post(2).
STANDARDS CONFORMANCE
pipcrm(1)