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author | tjr <tjr@FreeBSD.org> | 2003-01-14 02:57:54 +0000 |
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committer | tjr <tjr@FreeBSD.org> | 2003-01-14 02:57:54 +0000 |
commit | 184d2efa56bcdd3b15ab5399f257c1285c02588e (patch) | |
tree | 0cc33da9d375494b0c482ff683c08ed2ebf79c5a /share/man/man4/sem.4 | |
parent | 2715581ca404c62a523894e3701a97f9b2cc83f5 (diff) | |
download | FreeBSD-src-184d2efa56bcdd3b15ab5399f257c1285c02588e.zip FreeBSD-src-184d2efa56bcdd3b15ab5399f257c1285c02588e.tar.gz |
Manual page for sem.ko/options P1003_1B_SEMAPHORES, similar to aio(4).
Diffstat (limited to 'share/man/man4/sem.4')
-rw-r--r-- | share/man/man4/sem.4 | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/share/man/man4/sem.4 b/share/man/man4/sem.4 new file mode 100644 index 0000000..961814b --- /dev/null +++ b/share/man/man4/sem.4 @@ -0,0 +1,67 @@ +.\" Copyright (c) 2002 Tim J. Robbins +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd January 14, 2003 +.Dt SEM 4 +.Os +.Sh NAME +.Nm sem +.Nd POSIX semaphores +.Sh SYNOPSIS +To link into the kernel: +.Cd "options P1003_1B_SEMAPHORES" +.Pp +To load as a kernel loadable module: +.Dl kldload sem +.Sh DESCRIPTION +The +.Nm +facility provides system calls used by the C library +.Pq Pa libc +to implement +.Tn POSIX +semaphores. +It is available both as a kernel option for static inclusion and as a +dynamic kernel module. +.Sh SEE ALSO +.Xr sem_destroy 3 , +.Xr sem_getvalue 3 , +.Xr sem_init 3 , +.Xr sem_open 3 , +.Xr sem_post 3 , +.Xr sem_wait 3 , +.Xr config 8 , +.Xr kldload 8 , +.Xr kldunload 8 +.Sh HISTORY +The +.Nm +facility appeared as a kernel option in +.Fx 3.0 . +The +.Nm +kernel module appeared in +.Fx 5.0 . |