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From: dennison@telepath.com
Subject: Re: Does this model work ?
Date: 1999/05/14
Message-ID: <7hhj6q$cjn$1@nnrp1.deja.com>#1/1
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Date: 1999-05-14T00:00:00+00:00
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In article <373e38e2.31311363@news2.ibm.net>,
  jmarten@ibm.net (Jean-Marten Marchi) wrote:
> After all, with all this Open Source Software movement nowadays, is it
> possible to distribute applications in source code form (rather in
> bytecode form) to various devices or stations?
>
> Compile, link, etc ... are done automatically on the local computer
> and the binaries are stored wherever it is more appropriate.
>
> You can ask the application to execute whenever you want without
> reloading, or you can replace it with a newer version if necessary.

That's what I've found. Ada is great for this, if you are somewhat
careful about portability while you are writing it. We managed to port
the entire current development baseline of our flight simulator
(including a frequency-based scheduler) from vxWorks/GreenHills to
NT/Gnat in a couple of hours. The only OS call in the whole application
so far is a call to set the RT-clock's frequency (we stub that out on
NT, since its not realtime anyway). The rest of the sim compiles on both
platforms with *no* changes.

I don't think this feat would be possible in any other language.

--
T.E.D.


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