Date: Sun, 9 Jul 1995 12:37:40 -0700 (PDT) From: Julian Elischer <julian@ref.tfs.com> To: joerg_wunsch@uriah.heep.sax.de Cc: ukkonen@aphrodite.funet.fi, hackers@freebsd.org Subject: Re: new getsid(2) system call for freebsd... Message-ID: <199507091937.MAA10453@ref.tfs.com> In-Reply-To: <199507090620.IAA27669@uriah.heep.sax.de> from "J Wunsch" at Jul 9, 95 08:20:50 am
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> > As Jukka Ukkonen wrote: > > > > > > A couple of days ago I had a sudden moment of inspiration and > > I added an initial version of a new SVR4 style system call > > getsid(2) to FreeBSD. > > > The rationale for such a new system call is first and foremost > > completeness and symmetry. The second reason is the fact that > > X/Open might begin requiring such a service in their XPG, which > > might become a portability issue one day. The third point is > > that now and then there are things that would be somewhat easier > > to do, if such an interface were available, and moreover it is > > practically impossible to do exactly the same thing in a user > > mode subroutine. > > While i don't know about the second point (and hope that anybody else > here would comment on it), the third point is not acceptable (for me). > Writing code that relies on a specific system call that's only present > in a couple of systems is not a good idea. I notice however that systems that are moving towards posix are all implimenting this.. (osf and solaris to name two) I assume therefore (not having POSIX docs) that it might be 1/ common 2/ required terry? you have posix docs? julian
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