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From: mwm@violet.berkeley.edu.UUCP
Newsgroups: comp.sys.amiga
Subject: Servers, libraries, devices and handlers
Message-ID: <3457@jade.BERKELEY.EDU>
Date: Tue, 5-May-87 11:37:22 EDT
Article-I.D.: jade.3457
Posted: Tue May  5 11:37:22 1987
Date-Received: Fri, 8-May-87 01:00:35 EDT
Sender: usenet@jade.BERKELEY.EDU
Reply-To: mwm@violet.berkeley.edu(Mike (My watch has windows) Meyer)
Organization: Missionaria Phonibalonica
Lines: 37


I just finished building a server/client pair on the Unix model: The
server gets started, and opens a public port. The client opens the
port, and crams commands down it. In other words, I do a "run
<server>", and can then do "<client> command", and everything works
fine (actually, it's kinda cute issuing cli commands, and watching
another window that you wouldn't expect to go through gyrations).

This is all well and good, but I oughta be able to do better on the
Amiga. What I'd like to do is arrange things so that when I run
"<client> command", it causes the server to be loaded from disk (if
needed), and then starts it. Flushing the server from memory if nobody
has any oustanding requests is also desirable. The library/device
mechanism looks just about perfect, but there appears to be to much
overhead (for devices, anyway). I suppose I could create a
1-entry-per-command library. Someone wanna comment on that?

There are lots of things floating around called "xx-handler". None of
the docs I can reach talk about these. Am I correct in assuming that
this is just a device under a different name?

Some requirements: I'd like for the server half to continue to be
runnable in it's current mode, or at least compilable into that mode
without the #ifdef's getting to deep. Also, the server has state that
it'd be nice to keep around between open()s, if possible. Having it
vanish isn't a catastrophe, but having it not vanish is much better.

Of course, if I'm barking up the wrong tree, and there's an
easy/obvious way to do this, I'd appreciate hearing about it.

	Thanx,
	<mike
--
Take a magic carpet to the olden days			Mike Meyer
To a mythical land where everybody lays			ucbvax!mwm
Around in the clouds in a happy daze			mwm@berkeley.edu
In Kizmiaz ... Kizmiaz					mwm@ucbjade.BITNET