1.\" Copyright (C) 2000 Jason Evans <jasone@freebsd.org>.
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice(s), this list of conditions and the following disclaimer as
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20.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27.\"
28.\" $FreeBSD: head/lib/libc/gen/sem_init.3 69051 2000-11-22 16:02:00Z ru $
29.Dd February 15, 2000
30.Dt SEM_INIT 3
31.Os
32.Sh NAME
33.Nm sem_init
34.Nd initialize an unnamed semaphore
35.Sh LIBRARY
36.Lb libc_r
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83.El
84.Sh SEE ALSO
85.Xr sem_destroy 3 ,
86.Xr sem_post 3 ,
87.Xr sem_trywait 3 ,
88.Xr sem_wait 3
89.Sh STANDARDS
90.Fn sem_init
91conforms to ISO/IEC 9945-1 ANSI/IEEE
92.Pq Dq Tn POSIX
93Std 1003.1 1996 Edition.
94.Pp
95This implementation does not support shared semaphores, and reports this fact
96by setting
97.Va errno
98to
99.Er EPERM .
100This is perhaps a stretch of the intention of POSIX, but is
101compliant, with the caveat that
102.Fn sem_init
103always reports a permissions error when an attempt to create a shared semaphore
104is made.
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice(s), this list of conditions and the following disclaimer as
--- 11 unchanged lines hidden (view full) ---
20.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27.\"
28.\" $FreeBSD: head/lib/libc/gen/sem_init.3 69051 2000-11-22 16:02:00Z ru $
29.Dd February 15, 2000
30.Dt SEM_INIT 3
31.Os
32.Sh NAME
33.Nm sem_init
34.Nd initialize an unnamed semaphore
35.Sh LIBRARY
36.Lb libc_r
--- 46 unchanged lines hidden (view full) ---
83.El
84.Sh SEE ALSO
85.Xr sem_destroy 3 ,
86.Xr sem_post 3 ,
87.Xr sem_trywait 3 ,
88.Xr sem_wait 3
89.Sh STANDARDS
90.Fn sem_init
91conforms to ISO/IEC 9945-1 ANSI/IEEE
92.Pq Dq Tn POSIX
93Std 1003.1 1996 Edition.
94.Pp
95This implementation does not support shared semaphores, and reports this fact
96by setting
97.Va errno
98to
99.Er EPERM .
100This is perhaps a stretch of the intention of POSIX, but is
101compliant, with the caveat that
102.Fn sem_init
103always reports a permissions error when an attempt to create a shared semaphore
104is made.