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PROCDESC(4) FreeBSD Kernel Interfaces Manual PROCDESC(4)
NAME
procdesc - process descriptor facility
DESCRIPTION
procdesc is a file-descriptor-oriented interface to process signalling
and control, which supplements historic UNIX fork(2) and kill(2),
primitives with new system calls such as pdfork(2) and pdkill(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), pdfork(2), pdgetpid(2), pdkill(2), kqueue(2), wait4(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 <rwatson@FreeBSD.org> and
Jonathan Anderson <jonathan@FreeBSD.org> at the University of Cambridge,
and Ben Laurie <benl@FreeBSD.org> and Kris Kennaway <kris@FreeBSD.org> at
Google, Inc.
FreeBSD 14.0-RELEASE-p6 May 15, 2020 FreeBSD 14.0-RELEASE-p6