Re: [hatari-devel] Max amount of GEMDOS HD file handles?

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On 27 Jul 2023 at 21:06, Eero Tamminen wrote:
> 
> Leaving 64 handles to TOS (same as now), and increasing GEMDOS handles 
> from 32 e.g. to 64 should be fine, right?
> 
This raises an interesting issue.  TOS and EmuTOS allow up to 75 non-standard 
handles (6-80 inclusive).  Hatari uses 64-95 for its GEMDOS handles.  So it's 
possible to have different files open on different drives (one GEMDOS and one 
non-GEMDOS), with the same handle.

It is of course extrememly unlikely that this will happen, but it could (I have 
a test program if anyone needs one to verify).  If it *does* happen, I assume 
that I/O to the non-GEMDOS file will quietly be routed by Hatari to the GEMDOS 
file.  To be safe, the GEMDOS handles *should* start at 81 or higher.

Roger




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