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Article View: comp.sys.amiga.tech
Article #13895

Re: resource tracking

#13895
From: Peter da Silva
Date: Sun, 25 Feb 1990 05:33
23 lines
1578 bytes
> Consider.  A system call does not HAVE to be I/O.  Yes, all I/O to
> Exec devices and AmigaDOS filesystems involves message passing.  Not
> all _system_ calls do.  Does AddTask() use messages?  No.  Don't try
> telling me it's not a system call.

Argh...

OK, let's put it this way. Come up with a program that does soemthing useful
and doesn't do any IPC at all. About the only thing I can think off is one
that runs ONLY under the CLI, has no diagnostic messages, and toggles the 7kHz
filter on and off (or does some other trivial hardware hackery (or hijackery)).

IPC is integral to the Amiga. Sharing memory between a bunch of tasks is not
something you can get away from. It's rare on UNIX.

Maybe I need a disclaimer: "If this message uses different magic incantations
than the ones you're used to, try to see if that effects the content before
flaming"?
-- 
 _--_|\  Peter da Silva <peter@sugar.hackercorp.com>.
/      \
\_.--._/ I haven't lost my mind, it's backed up on tape somewhere!
      v  "Have you hugged your wolf today?" `-_-'
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Message-ID: <5201@sugar.hackercorp.com>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!rutgers!cbmvax!uunet!nuchat!sugar!peter
References: <355.25C92297@weyr.FIDONET.ORG> <926@tardis.Tymnet.COM> <DEVEN.90Feb22141102@netserv2.rpi.edu>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!rutgers!cbmvax!uunet!nuchat!sugar!peter
From: peter@sugar.hackercorp.com (Peter da Silva)
Newsgroups: comp.sys.amiga.tech
Subject: Re: resource tracking
Message-ID: <5201@sugar.hackercorp.com>
Date: 25 Feb 90 05:33:44 GMT
References: <355.25C92297@weyr.FIDONET.ORG> <926@tardis.Tymnet.COM> <DEVEN.90Feb22141102@netserv2.rpi.edu>
Organization: Sugar Land Unix - Houston
Lines: 23