Newsgroups: comp.os.misc
Path: utzoo!utgpu!news-server.csri.toronto.edu!torsqnt!hybrid!scifi!bywater!uunet!kithrup!sef
From: sef@kithrup.COM (Sean Eric Fagan)
Subject: Re: OS/2 versus UNIX
Organization: Kithrup Enterprises, Ltd.
Date: Tue, 21 May 1991 00:19:03 GMT
Message-ID: <1991May21.001903.18598@kithrup.COM>
References: <1089@stewart.UUCP> <1991May15.110459.21996@sugar.hackercorp.com> <7913@auspex.auspex.com>

In article <7913@auspex.auspex.com> guy@auspex.auspex.com (Guy Harris) writes:
>	FIFOs (I'd call them "named pipes", but I don't want to confuse
>	the OS/2oids in the audience)
and
>	sockets of various flavors
and maybe even
>	S5 message queues

Can be written with STREAMS or streams (assuming, of course, you have those;
however, since SysV and OSF have STREAMS, and BSD4.3++ will have bstreams,
that will start to become a very reasonable assumption).  Thus, they won't
clutter up the kernel (except for backwards compatibility for some systems
[e.g., 386bsd has no need to worry about b.c., while anything sco ever does
for the '386 will]).

>	S5 shared memory

This *should* be possible to emulate in other systems (e.g., bsd&sunOS),
although I'm not sure how much effort it would take.

>and, if you're *really* lucky, you may also have various streams-based
>IPC mechanisms as well.  There may well be some that I've forgotten....

Semaphores (xenix and SVID), and xenix shared memory.

-- 
Sean Eric Fagan  | "I made the universe, but please don't blame me for it;
sef@kithrup.COM  |  I had a bellyache at the time."
-----------------+           -- The Turtle (Stephen King, _It_)
Any opinions expressed are my own, and generally unpopular with others.