diff options
author | rwatson <rwatson@FreeBSD.org> | 2013-08-28 19:49:32 +0000 |
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committer | rwatson <rwatson@FreeBSD.org> | 2013-08-28 19:49:32 +0000 |
commit | a9feb8e8b996e9a105c5581728f136d650c732b3 (patch) | |
tree | 16f0ad30699623e5f37923c75b0fe5de5a642a17 /share/man/man4/procdesc.4 | |
parent | 1e9dff7acaa990a9dcb8101c26a5756f555eb4eb (diff) | |
download | FreeBSD-src-a9feb8e8b996e9a105c5581728f136d650c732b3.zip FreeBSD-src-a9feb8e8b996e9a105c5581728f136d650c732b3.tar.gz |
Add a simple procdesc(4) man page describing "options PROCDESC" and the
high-level facility, supplementing pdfork(2) and friends. Update capsicum.4
to xref.
Suggested by: sbruno
MFC after: 3 days
Diffstat (limited to 'share/man/man4/procdesc.4')
-rw-r--r-- | share/man/man4/procdesc.4 | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/share/man/man4/procdesc.4 b/share/man/man4/procdesc.4 new file mode 100644 index 0000000..f7477da --- /dev/null +++ b/share/man/man4/procdesc.4 @@ -0,0 +1,93 @@ +.\" +.\" Copyright (c) 2013 Robert N. M. Watson +.\" All rights reserved. +.\" +.\" This software was developed by SRI International and the University of +.\" Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) +.\" ("CTSRD"), as part of the DARPA CRASH research programme. +.\" +.\" 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 August 21, 2013 +.Dt PROCDESC 4 +.Os +.Sh NAME +.Nm procdesc +.Nd process descriptor facility +.Sh SYNOPSIS +.Cd "options PROCDESC" +.Sh DESCRIPTION +.Nm +is a file-descriptor-oriented interface to process signalling and control, +which supplements historic +.Ux +.Xr fork 2 , +.Xr kill 2 , +and +.Xr wait4 2 +primitives with +new system calls such as +.Xr pdfork 2 , +.Xr pdkill 2 , +and +.Xr pdwait4 2 . +.Nm +is designed for use with +.Xr capsicum 4 , +replacing process identifiers with capability-oriented references. +However, it can also be used independently of +.Xr capsicum 4 , +displacing PIDs, which may otherwise suffer from race conditions. +Given a process descriptor, it is possible to query its conventional PID using +.Xr pdgetpid 2 . +.Sh SEE ALSO +.Xr fork 2 , +.Xr kill 2 , +.Xr wait4 2 , +.Xr pdfork 2 , +.Xr pdgetpid 2 , +.Xr pdkill 2 , +.Xr pdwait4 , +.Xr capsicum 4 +.Sh HISTORY +.Nm +first appeared in +.Fx 9.0 , +and was developed at the University of Cambridge. +.Sh AUTHORS +.Nm +was developed by +.An -nosplit +.An "Robert Watson" Aq rwatson@FreeBSD.org +and +.An "Jonathan Anderson" Aq jonathan@FreeBSD.org +at the University of Cambridge, and +.An "Ben Laurie" Aq benl@FreeBSD.org +and +.An "Kris Kennaway" Aq kris@FreeBSD.org +at Google, Inc. +.Sh BUGS +.Nm +is considered experimental in +.Fx . |