From: "Michael A. Olson" <mao@sleepycat.com>
To: "Bas Valkema" <bvalkema@knowhowww.nl>
Cc: elix@sourceware.cygnus.com
Subject: Re: EL/IX spec review, status
Date: Tue, 18 Jan 2000 14:38:00 -0000 [thread overview]
Message-ID: <200001182238.OAA09832@triplerock.olsons.net> (raw)
In-Reply-To: <003401bf6202$1d610f20$0303a0c0@BAS>
At 11:19 PM 1/18/00 +0100, you wrote:
> Sure, but what would be the difference between level 3 & 4 if the change is
> conducted? (sorry had no time to study the spec carefully.. ;-)
Level 4 right now has a bunch of system call interfaces not in
level 3. They include:
setuid/setgid
process group support
filesystem-based mutex support
password and group database operations
semaphores
mapped memory
shared memory
some non-standard stream support
popen() and friends
named interfaces (if_nametoindex and friends)
pty and raw terminal support
common signal handling functions
interfaces to spawn and manage processes
and just a couple of others. The spec claims that the difference
between 3 and 4 is that 3 is multi-process and 4 is full Linux.
My argument is that shared memory is a useful abstraction for
multi-process, and belongs there.
The rest of the level 4 interfaces look right to me, based on
the designed differences between 3 and 4.
mike
next prev parent reply other threads:[~2000-01-18 14:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-01-18 11:15 Michael A. Olson
2000-01-18 12:24 ` Peter Buechler
2000-01-18 14:25 ` Bas Valkema
2000-01-18 14:38 ` Michael A. Olson [this message]
2000-01-19 2:57 ` Nick Garnett
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