[Etoys] Strange problem with file access

[Bert Freudenberg]

On 09.01.2009, at 20:59, Hilaire Fernandes wrote:

> I am sugarizing iStoa, it comes with its own virtual machine and  
> image.
> The image comes with Magma and I am conducting tests on the XO.
>
> I see a strange behavior:
>
> When I start iStoa from the Sugar application dock, I can not open the
> Magma database from iStoa. It complains it cannot open the database
> file. I try to follow what is happening from the debugger, and it
> seems to be related to
> StandardFileStream>>primOpen:writable:
> FilePlugin?
> However the path to the Magam databse file is fine and correct.
>
> Now when I start iStoa from a terminal activity with the command:
> ./Activities/iStoa.net.activity/bin/istoa.sh
> I can open the database without problem.
>
> The database is in ./Activities/iStoa.net.activity/resources/Magma
>
> I am wondering: are there restrictions on file i/o when an activity is
> started from the Sugar application dock?


Yes. You cannot write in the activity bundle directory. An activity  
does not run as user olpc:

http://wiki.laptop.org/go/Low-level_Activity_API

- Bert -