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47 .TH MQ_CLOSE 3C "Feb 5, 2008"
49 mq_close \- close a message queue
55 \fBint\fR \fBmq_close\fR(\fBmqd_t\fR \fImqdes\fR);
61 The \fBmq_close()\fR function removes the association between the message queue
62 descriptor, \fImqdes\fR, and its message queue. The results of using this
63 message queue descriptor after successful return from this \fBmq_close()\fR,
64 and until the return of this message queue descriptor from a subsequent
65 \fBmq_open\fR(3C), are undefined.
68 If the process (or thread) has successfully attached a notification request to
69 the message queue via this \fImqdes\fR, this attachment is removed and the
70 message queue is available for another process to attach for notification.
74 Upon successful completion, \fBmq_close()\fR returns \fB0\fR; otherwise, the
75 function returns \fB\(mi1\fR and sets \fBerrno\fR to indicate the error
80 The \fBmq_close()\fR function will fail if:
87 The \fImqdes\fR argument is an invalid message queue descriptor.
96 The \fBmq_open()\fR function is not supported by the system.
102 See \fBattributes\fR(5) for descriptions of the following attributes:
110 ATTRIBUTE TYPE ATTRIBUTE VALUE
112 Interface Stability Committed
116 Standard See \fBstandards\fR(5).
122 \fBmqueue.h\fR(3HEAD), \fBmq_notify\fR(3C), \fBmq_open\fR(3C),
123 \fBmq_unlink\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5)
127 Solaris 2.6 was the first release to support the Asynchronous Input and Output
128 option. Prior to this release, this function always returned \fB\(mi1\fR and
129 set \fBerrno\fR to \fBENOSYS\fR.