🚀 go-pugleaf

On 5 Aug 89 01:20:53 GMT, mcr@julie.UUCP (Michael Richardson) said:

[lots of stuff about "policy"]

methinks you've confused "policy" with "restrictions"...  :-)

mcr> I once brought up the fact that the CLI (Shell, ArpShell, WShell)
mcr> are not a user level process.

They most certainly ARE user-level processes.

mcr> They are part of AmigaDOS. They are NOT shells. I was told that
mcr> no, they are. The interface between them and AmigaDOS just isn't
mcr> well defined.

AmigaDOS's CLI *IS* a shell.  It is a very simple shell, but it is a
shell.  What makes it so bizarre is that all programs it runs are
loaded by the CLI, and run synchronously in the same process as the
CLI, as if it were a function call.  [which, in effect, it is.]

mcr> But the whole point of having a DOS at all is so that the user
mcr> can have it load and start running a program. How should they do
mcr> that? With a program of course. Which is loaded because the user
mcr> asked DOS to run it for them, which was loaded because....

The CLI is a shell, a specific program which _uses_ AmigaDOS calls to
load a program, and simply jumps to the loaded code to start running
it.  [when the program exits, the CLI regains control and cleans up.]

Deven
--
Deven T. Corzine        Internet:  deven@rpi.edu, shadow@pawl.rpi.edu
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Simple things should be simple and complex things should be possible.