2017-04-28 18:36 GMT+02:00 Nicolas Cellier < nicolas.cellier.aka.nice@gmail.com>:
2017-04-28 17:48 GMT+02:00 David T. Lewis lewis@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&... 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>