diff options
Diffstat (limited to 'lib/libpthread')
| -rw-r--r-- | lib/libpthread/man/sem_init.3 | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/lib/libpthread/man/sem_init.3 b/lib/libpthread/man/sem_init.3 index 92bd6d274fa..3d23004e014 100644 --- a/lib/libpthread/man/sem_init.3 +++ b/lib/libpthread/man/sem_init.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sem_init.3,v 1.6 2013/11/20 03:26:56 tedu Exp $ +.\" $OpenBSD: sem_init.3,v 1.7 2021/04/06 19:59:32 kn Exp $ .\" .\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>. .\" All rights reserved. @@ -28,7 +28,7 @@ .\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" .\" $FreeBSD: src/lib/libc_r/man/sem_init.3,v 1.11 2001/10/01 16:09:09 ru Exp $ -.Dd $Mdocdate: November 20 2013 $ +.Dd $Mdocdate: April 6 2021 $ .Dt SEM_INIT 3 .Os .Sh NAME @@ -47,7 +47,8 @@ to have the value .Fa value . A non-zero value for .Fa pshared -specifies a shared semaphore that can be used by multiple processes. +specifies a shared semaphore that can be used by multiple processes, which this +implementation is not capable of. .Pp Following a successful call to .Fn sem_init , @@ -77,6 +78,8 @@ will fail if: exceeds SEM_VALUE_MAX. .It Bq Er ENOSPC Memory allocation error. +.It Bq Er EPERM +Unable to initialize a shared semaphore. .El .Sh SEE ALSO .Xr sem_destroy 3 , @@ -88,3 +91,14 @@ Memory allocation error. .Fn sem_init conforms to .St -p1003.1-96 . +.Pp +This implementation does not support shared semaphores, and reports this fact +by setting +.Va errno +to +.Er EPERM . +This is perhaps a stretch of the intention of POSIX, but is +compliant, with the caveat that +.Fn sem_init +always reports a permissions error when an attempt to create a shared semaphore +is made. |