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mq_unlink(3c)
Standard C Library Functions mq_unlink(3C)
NAME
mq_unlink - remove a message queue
SYNOPSIS
#include <mqueue.h>
int mq_unlink(const char *name);
DESCRIPTION
The mq_unlink() function removes the message queue named by the path‐
name name. After a successful call to mq_unlink() with name, a call to
mq_open(3C) with name fails if the flag O_CREAT is not set in flags. If
one or more processes have the message queue open when mq_unlink() is
called, destruction of the message queue is postponed until all refer‐
ences to the message queue have been closed. Calls to mq_open(3C) to
re-create the message queue may fail until the message queue is actu‐
ally removed. However, the mq_unlink() call need not block until all
references have been closed; it may return immediately.
RETURN VALUES
Upon successful completion, mq_unlink() returns 0; otherwise, the named
message queue is not changed by this function call, the function
returns −1 and sets errno to indicate the error.
ERRORS
The mq_unlink() function will fail if:
EACCES Permission is denied to unlink the named message queue.
ENAMETOOLONG The length of the name string exceeds PATH_MAX, or a
pathname component is longer than NAME_MAX while
_POSIX_NO_TRUNC is in effect.
ENOENT The named message queue, name, does not exist.
ENOSYS mq_unlink() is not supported by the system.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe _ Stan‐
dardSee standards(7).
SEE ALSO
mq_close(3C), mq_open(3C), mqueue.h(3HEAD), attributes(7), standards(7)
Oracle Solaris 11.4 5 Feb 2008 mq_unlink(3C)