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).
