mq_unlink(2) System Calls Manual mq_unlink(2)NAME
mq_unlink - unlink a message queue
SYNOPSIS DESCRIPTION
The system call disassociates the queue name, from a message queue specified by the argument, name. After a successful call to attempts to
open a message queue with the same name will fail, if the flag is not set in oflags.
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.
To use this function, link in the realtime library by specifying on the compiler or linker command line.
Security Restrictions
Some or all of the actions associated with this system call are subject to compartmentalization restrictions. See compartments(5) for more
information.
Some or all of the actions associated with this system call require privileges. See privileges(5).
RETURN VALUE
returns the following values:
Successful completion.
Failure,
is set to indicate the error.
ERRORS
If fails, is set to one of the following values:
[EACCES] Permission to unlink the named message queue is denied.
[EINVAL] The argument name is not a valid message queue name.
[ENAMETOOLONG] The length of the name string exceeds bytes, or the length of a (pathname) component of the name string exceeds bytes
while is in effect.
[ENOENT] The named message queue does not exist.
[ENOSYS] is not supported by the implementation.
SEE ALSO mq_open(2), mq_close(2), compartments(5), privileges(5).
STANDARDS CONFORMANCE mq_unlink(2)
Check Out this Related Man Page
MQ_UNLINK(3) Linux Programmer's Manual MQ_UNLINK(3)NAME
mq_unlink - remove a message queue
SYNOPSIS
#include <mqueue.h>
int mq_unlink(const char *name);
Link with -lrt.
DESCRIPTION
mq_unlink() removes the specified message queue name. The message queue name is removed immediately. The queue itself is destroyed once
any other processes that have the queue open close their descriptors referring to the queue.
RETURN VALUE
On success mq_unlink() returns 0; on error, -1 is returned, with errno set to indicate the error.
ERRORS
EACCES The caller does not have permission to unlink this message queue.
ENAMETOOLONG
name was too long.
ENOENT There is no message queue with the given name.
CONFORMING TO
POSIX.1-2001.
SEE ALSO mq_close(3), mq_getattr(3), mq_notify(3), mq_open(3), mq_receive(3), mq_send(3), mq_overview(7)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2010-08-29 MQ_UNLINK(3)
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