[hatari-devel] opened filehandles not saved/restored in memory snapshot with gemdos hd ?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Hi

while debugging a program, I noticed that this program didn't work 
correctly anymore once it was started from a gemdos hd, saved and 
restored from a memory snapshot.

This program is opening an MP2 music file at start and read blocks of 
64K bytes in a loop to send them to the dsp, using GEMDOS FREAD $3F.

From what I see, when memory is saved during playback, the content of 
FileHandles[] is not saved for all opened files having bUsed=true. So on 
restore, even if the file handle is still opened from TOS' point of 
view, it's not opened anymore from the host OS' point of view and FREAD 
returns error -37 "invalid file handle"

Shouldn't the content of FileHandles[] be saved and then when restoring 
reopen all "szActualName" files' path for which bUsed is true ? Or could 
this have some bad side effects ?

It's might not be a common case that programs keep files open for such a 
 long time, but saving/restoring this state would be handy.

Nicolas