projects / thirdparty / man-pages.git / blame
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|---|---|---|
| c11b1abf | 1 | .\" Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com> |
| 2c731798 | 2 | .\" |
| 5fbde956 | 3 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft |
| 2c731798 | 4 | .\" |
| 4c1c5274 | 5 | .TH sem_unlink 3 (date) "Linux man-pages (unreleased)" |
| 2c731798 MK |
6 | .SH NAME |
| 7 | sem_unlink \- remove a named semaphore | |
| fba004fe AC |
8 | .SH LIBRARY |
| 9 | POSIX threads library | |
| 8fc3b2cf | 10 | .RI ( libpthread ", " \-lpthread ) |
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11 | .SH SYNOPSIS |
| 12 | .nf | |
| 13 | .B #include <semaphore.h> | |
| 68e4db0a | 14 | .PP |
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15 | .BI "int sem_unlink(const char *" name ); |
| 16 | .fi | |
| 17 | .SH DESCRIPTION | |
| 18 | .BR sem_unlink () | |
| 19 | removes the named semaphore referred to by | |
| c030aa56 | 20 | .IR name . |
| 2c731798 | 21 | The semaphore name is removed immediately. |
| c13182ef | 22 | The semaphore is destroyed once all other processes that have |
| 2c731798 MK |
23 | the semaphore open close it. |
| 24 | .SH RETURN VALUE | |
| 25 | On success | |
| 26 | .BR sem_unlink () | |
| 27 | returns 0; on error, \-1 is returned, with | |
| c13182ef | 28 | .I errno |
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29 | set to indicate the error. |
| 30 | .SH ERRORS | |
| 31 | .TP | |
| 32 | .B EACCES | |
| 33 | The caller does not have permission to unlink this semaphore. | |
| 34 | .TP | |
| 35 | .B ENAMETOOLONG | |
| 0daa9e92 | 36 | .I name |
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37 | was too long. |
| 38 | .TP | |
| 39 | .B ENOENT | |
| 40 | There is no semaphore with the given | |
| 41 | .IR name . | |
| ef0a5e73 | 42 | .SH ATTRIBUTES |
| ee9482f4 PH |
43 | For an explanation of the terms used in this section, see |
| 44 | .BR attributes (7). | |
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45 | .ad l |
| 46 | .nh | |
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47 | .TS |
| 48 | allbox; | |
| c466875e | 49 | lbx lb lb |
| ee9482f4 PH |
50 | l l l. |
| 51 | Interface Attribute Value | |
| 52 | T{ | |
| ef0a5e73 | 53 | .BR sem_unlink () |
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54 | T} Thread safety MT-Safe |
| 55 | .TE | |
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56 | .hy |
| 57 | .ad | |
| 58 | .sp 1 | |
| 3113c7f3 | 59 | .SH STANDARDS |
| 14375f3f | 60 | POSIX.1-2001, POSIX.1-2008. |
| 47297adb | 61 | .SH SEE ALSO |
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62 | .BR sem_getvalue (3), |
| 63 | .BR sem_open (3), | |
| 64 | .BR sem_post (3), | |
| 65 | .BR sem_wait (3), | |
| 66 | .BR sem_overview (7) |