[Cuis-dev] Using OSProcess package

[David T. Lewis]

On Thu, Dec 08, 2022 at 09:25:18PM -0300, Juan Vuletich via Cuis-dev wrote:
> On 12/7/2022 4:33 PM, Juan Vuletich via Cuis-dev wrote:
> >On 12/7/2022 7:54 AM, Jan Vran?? via Cuis-dev wrote:
> >>Hi,
> >>
> >>how does one use OSProcess package in Cuis? I have loaded it but it 
> >>does not seem to work - all I get for
> >>
> >>     OSProcess command:'ls -al'
> >>
> >>is this in console:
> >>          bad env or bad args: Bad file descriptor
> >>
> >>In Squeak, it does work.
> >>
> >>Besides, how is one supposed to wait for the command to finish 
> >>(provided it starts in the first place)?
> >>
> >>Thanks! Jan
> >
> >Hi Folks,
> >
> >It seems OSProcess has been affected by the recent switch to 
> >UnicodeString.
> >
> >I think something in the lines of the attach is needed. I don't know 
> >OSProcess in detail, and I wrote this pretty blindly. Command ls still 
> >doesn't work, but it answers 'No such file of directory' that is 
> >presumably better.
> >
> >Dave, can you take a look?
> >
> >Thanks,
> >
> 
> I just tried the latest OSProcess on an older Cuis image, #4738, from 
> August 2021. This was before UnicodeString became the default String 
> class. At that time, it was the old String from Squeak. OSProcess works 
> OK there. I'm pretty sure the problem are the instances of 
> UnicodeString, that should be converted to, maybe, bytearrays that end 
> with a zero byte.
> 
> Dave, can you take a look?
> 


Hi Juan,

I have not had time to look in detail, but something is badly broken. I see
"Bad file descriptor" errors in the console, and UnixProcessAccessorTestCase
crashes the VM.

I'll try to look at it this weekend and give a better answer.

Dave