Confirming: Yes it works with the latest Spur VM and Squeak trunk image.

>From a console window, run Squeak in the foreground (no '&' at the end of the command):

$ spur64 my64BitImage

Then in the image, do e.g. "Smalltalk snapshot: false andQuitWithExitCode: 3"
to quit without saving and return exit status 3.

After the image exits, test the exit status that was returned to the shell:

$ echo $?
3


Dave


On Fri, Apr 28, 2017 at 01:13:38PM -0400, Louis LaBrunda wrote:
> Hi Guys,
> 
> Thanks for the reply's.  I found:
> 
> snapshot: save andQuit: quit withExitCode: exitCode embedded: embeddedFlag
> 
> which looks like it will do what I want.  I will give it a try and report back.
> 
> Lou
> 
> 
> On Fri, 28 Apr 2017 18:43:59 +0200, Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com> wrote:
> 
> >2017-04-28 18:36 GMT+02:00 Nicolas Cellier <
> >nicolas.cellier.aka.nice at gmail.com>:
> >
> >>
> >>
> >> 2017-04-28 17:48 GMT+02:00 David T. Lewis <lewis at mail.msen.com>:
> >>
> >>> > Hi Squeakers,
> >>> >
> >>> > Is there a way to quit/exit Squeak with a return code that can be tested
> >>> > in a .so file?
> >>> >
> >>>
> >>> I think I remember implementing this a long time ago in the Unix VM. I
> >>> can't really look further right now but I'll check later and try to give a
> >>> better answer.
> >>>
> >>> IIRC, primitiveQuit can take an optional argument that is passed back to
> >>> the shell script that in turn gives you an exit code that you can test.
> >>> This probably is working right now in the interpreter VM (sorry I can't
> >>> check it at the moment). I'm not sure if it's in Cog/Spur, but if not it
> >>> can be easily added.
> >>>
> >>> Dave
> >>>
> >>>
> >>>
> >>>
> >> Answer is yes, if you browse the code on github,
> >> https://raw.githubusercontent.com/OpenSmalltalk/
> >> opensmalltalk-vm/Cog/src/vm/cointerp.c
> >> then you will see this:
> >>
> >>  /* 113 */ primitiveQuit,
> >>
> >> ... snip...
> >>
> >> 	/* InterpreterPrimitives>>#primitiveQuit */
> >> static void
> >> primitiveQuit(void)
> >> {   DECL_MAYBE_SQ_GLOBAL_STRUCT
> >> 	ioExitWithErrorCode((GIV(argumentCount) == 1
> >> 		? ((longAt(GIV(stackPointer))) >> 1)
> >> 		: 0));
> >> }
> >>
> >>
> >> So you can pass a SmallInteger to the primitive 113
> >>
> >> Then to know what the platform will do with this error code, just query it
> >> thru github web iface:
> >>
> >> https://github.com/OpenSmalltalk/opensmalltalk-vm/search?utf8=%E2%9C%93&q=
> >> ioExitWithErrorCode&type=
> >>
> >> Sorry, I wanted to post that all supported platforms would call
> >exit(errorCode), but I'm bad with web iface shortcuts...
> ><rant>
> >The windows squeak spur VM/image fixture insist on having shortcuts thru
> >ALT instead of CTRL which certainly DOES NOT HELP!!!
> ></rant>
> -- 
> Louis LaBrunda
> Keystone Software Corp.
> SkypeMe callto://PhotonDemon
> 
>