projects / thirdparty / man-pages.git / blame
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|---|---|---|
| a1eaacb1 | 1 | '\" t |
| c11b1abf | 2 | .\" Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com> |
| 80a99f39 | 3 | .\" |
| 5fbde956 | 4 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft |
| 80a99f39 | 5 | .\" |
| 4c1c5274 | 6 | .TH mq_close 3 (date) "Linux man-pages (unreleased)" |
| 80a99f39 MK |
7 | .SH NAME |
| 8 | mq_close \- close a message queue descriptor | |
| 48b739c5 AC |
9 | .SH LIBRARY |
| 10 | Real-time library | |
| 8fc3b2cf | 11 | .RI ( librt ", " \-lrt ) |
| 80a99f39 MK |
12 | .SH SYNOPSIS |
| 13 | .nf | |
| 14 | .B #include <mqueue.h> | |
| c6d039a3 | 15 | .P |
| c9e83f06 | 16 | .BI "int mq_close(mqd_t " mqdes ); |
| 80a99f39 MK |
17 | .fi |
| 18 | .SH DESCRIPTION | |
| 19 | .BR mq_close () | |
| 20 | closes the message queue descriptor | |
| 21 | .IR mqdes . | |
| c6d039a3 | 22 | .P |
| bcdd78a0 | 23 | If the calling process has attached a notification request (see |
| dcdd5390 | 24 | .BR mq_notify (3)) |
| 80a99f39 MK |
25 | to this message queue via |
| 26 | .IR mqdes , | |
| c13182ef | 27 | then this request is removed, |
| 80a99f39 | 28 | and another process can now attach a notification request. |
| 80a99f39 MK |
29 | .SH RETURN VALUE |
| 30 | On success | |
| 31 | .BR mq_close () | |
| 32 | returns 0; on error, \-1 is returned, with | |
| c13182ef | 33 | .I errno |
| 80a99f39 MK |
34 | set to indicate the error. |
| 35 | .SH ERRORS | |
| 36 | .TP | |
| 37 | .B EBADF | |
| 1cd9229c | 38 | The message queue descriptor specified in |
| 80a99f39 MK |
39 | .I mqdes |
| 40 | is invalid. | |
| 0e7d2e7f | 41 | .SH ATTRIBUTES |
| 2f75eb08 PH |
42 | For an explanation of the terms used in this section, see |
| 43 | .BR attributes (7). | |
| 44 | .TS | |
| 45 | allbox; | |
| c466875e | 46 | lbx lb lb |
| 2f75eb08 PH |
47 | l l l. |
| 48 | Interface Attribute Value | |
| 49 | T{ | |
| 9e54434e BR |
50 | .na |
| 51 | .nh | |
| 0e7d2e7f | 52 | .BR mq_close () |
| 2f75eb08 PH |
53 | T} Thread safety MT-Safe |
| 54 | .TE | |
| 3113c7f3 | 55 | .SH STANDARDS |
| 4131356c AC |
56 | POSIX.1-2008. |
| 57 | .SH HISTORY | |
| 58 | POSIX.1-2001. | |
| 2b2581ee MK |
59 | .SH NOTES |
| 60 | All open message queues are automatically closed on process termination, | |
| 61 | or upon | |
| 62 | .BR execve (2). | |
| 47297adb | 63 | .SH SEE ALSO |
| 80a99f39 MK |
64 | .BR mq_getattr (3), |
| 65 | .BR mq_notify (3), | |
| 66 | .BR mq_open (3), | |
| 67 | .BR mq_receive (3), | |
| 68 | .BR mq_send (3), | |
| 69 | .BR mq_unlink (3), | |
| 70 | .BR mq_overview (7) |