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 13.1-RELEASE-p6          May 15, 2020          FreeBSD 13.1-RELEASE-p6