PROCDESC(4FREEBSD) - man page online | special files

PROCDESC(4)                        BSD Kernel Interfaces Manual                       PROCDESC(4)

NAME
     procdesc — process descriptor facility

SYNOPSIS
     options PROCDESC

DESCRIPTION
     procdesc is a file-descriptor-oriented interface to process signalling and control, which
     supplements historic UNIX fork(2), kill(2), and wait4(2) primitives with new system calls
     such as pdfork(2), pdkill(2), and pdwait4(2).  procdesc is designed for use with
     capsicum(4), replacing process identifiers with capability-oriented references.  However, it
     can also be used independently of capsicum(4), displacing PIDs, which may otherwise suffer
     from race conditions.  Given a process descriptor, it is possible to query its conventional
     PID using pdgetpid(2).

SEE ALSO
     fork(2), kill(2), wait4(2), pdfork(2), pdgetpid(2), pdkill(2), pdwait4(2), capsicum(4)

HISTORY
     procdesc first appeared in FreeBSD 9.0, and was developed at the University of Cambridge.

AUTHORS
     procdesc was developed by Robert Watson <@FreeBSD.org> and Jonathan Anderson
     <@FreeBSD.org> at the University of Cambridge, and Ben Laurie <@FreeBSD.org> and
     Kris Kennaway <@FreeBSD.org> at Google, Inc.

BUGS
     procdesc is considered experimental in FreeBSD.

BSD                                      August 21, 2013                                      BSD