[fpc-devel] zstream, fpc and lazarus

Paul Ishenin webpirat at mail.ru
Sun Dec 2 08:15:36 CET 2007

Vincent Snijders wrote:
> Daniël Mantione schreef:
>> Op Sat, 1 Dec 2007, schreef Vincent Snijders:
>>> Daniël Mantione schreef:
>>>> If committed a proper fix, as bonus you can now randomly seek 
>>>> through the
>>>> compressed file, there are no limitations anymore.
>>> Unfortunately, it still crashes Lazarus:
>>> [FORMS.PP] ExceptionOccurred
>>> Sender=Ecompressionerror
>>> Exception=buffer error
>> A buffer error occurs when the output buffer is full or the input 
>> buffer is empty. As the output buffer is set on each read operation 
>> it has to be the input buffer.
>> Put a:
>> writeln(Fstream.avail_in);
>> ... at the end of the reset procedure. If it happens to be non-zero, 
>> we have found the problem.
> It does not happen at all. The reset method doesn't seem to be called.
I think the problem is still the same. When you seek 
TDecompressionStream to offset 0 with soFromBegining origin then Source 
stream must be repositioned too.

Best regards,
Paul Ishenin.

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