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mq_unlink(3) [ultrix man page]

MQ_UNLINK(3)						     Linux Programmer's Manual						      MQ_UNLINK(3)

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. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +------------+---------------+---------+ |Interface | Attribute | Value | +------------+---------------+---------+ |mq_unlink() | Thread safety | MT-Safe | +------------+---------------+---------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008. 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 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at Linux 2015-08-08 MQ_UNLINK(3)

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mq_unlink(3C)						   Standard C Library Functions 					     mq_unlink(3C)

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 pathname 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 references 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 actually 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(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ |ATTRIBUTE TYPE |ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ |Standard |See standards(5). | +-----------------------------+-----------------------------+ SEE ALSO
mqueue.h(3HEAD), mq_close(3C), mq_open(3C), attributes(5), standards(5) NOTES
Solaris 2.6 was the first release to support the Asynchronous Input and Output option. Prior to this release, this function always returned -1 and set errno to ENOSYS. SunOS 5.11 5 Feb 2008 mq_unlink(3C)
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