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 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)