Path: utzoo!utgpu!water!watmath!clyde!rutgers!mcnc!decvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcvax!unido!pcsbst!jh
From: jh@pcsbst
Newsgroups: comp.unix.questions
Subject: Re: Re: wait3 emulation in SYSTEMV ?? - (nf)
Message-ID: <4200006@pcsbst.UUCP>
Date: 29 Jan 88 08:54:00 GMT
References: <579@xyzzy.UUCP>
Lines: 11
Nf-ID: #R:xyzzy:-57900:pcsbst:4200006:000:391
Nf-From: pcsbst!jh    Jan 29 09:54:00 1988
Posted: Fri Jan 29 09:54:00 1988


It is not true that a process id is not unique, even for a
dead process in the zombi state.

In AT&T System V.[23] a zombi process keeps its process id (pid)
until it is really eliminated by wait() (or ignoring SIGCLD).
Thus, the process id is not reused when creating a new process
and the technique for a pseudo wait3() in SVR[23] should work 100% ok.

		Johannes Heuft
		unido!pcsbst!jh