HP-UX Reference (11i v2 03/08) - 2 System Calls (vol 5)

msgop(2) msgop(2)

[EAGAIN] The message cannot be sent for one of the reasons cited above and (msgﬂg

IPC_NOWAIT) is true.

[EFAULT] msgp points to an illegal address. The reliable detection of this error is implemen-

tation dependent.

[EIDRM] The message queue identiﬁer msqid has been removed from the system.

[EINTR]

msgsnd() was interrupted by a signal.

[EINVAL] msqid is not a valid message queue identiﬁer.

[EINVAL] mtype is less than 1.

[EINVAL] msgsz is less than zero or greater than the system-imposed limit.

WARNINGS

Check all references to signal (5) for appropriateness on systems that support sigvector (2). sigvector (2)

can affect the behavior described on this page.