[fpc-devel] Re: Multi threading support

[Boian Mitov]

   Jonas,

Thank you!
I disagree with your definition of what is optimisation, but I accept the 
FPC as it is. Being aware of the way it is implemented in FPC is very 
important to the other developers, and I was just making them aware of the 
danger. I am not saying you are doing it wrong (At least not any more), I am 
warning them that the problem exists, and they have to take some measures 
not get burned. I have taken such measures already, and the code seems to 
work with the workarounds I have implemented.
I don't understand why you are reacting as if I am offending you when I am 
simply pointing that the specific implementation of the refference counting 
leads to unexpected side effects, and certain measures should be taken 
especially if you use the interfaces for thread locking. If there is nothing 
wrong with that why you are behaving so defensively? Nobody is attacking 
you.

  With best regards,
    Boian Mitov

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> No, as explained roughly ten times by now it's due to some  optimisations 
> which we do *not* do, and that assumption is wrong in  Delphi as well 
> because this particular optimisation is simply unsafe  in certain cases. 
> So please, finally, stop propagating and endlessly  repeating this 
> misinformation.
>
> See http://www.hu.freepascal.org/lists/fpc-devel/2008-June/014005.html 
> for the full explanation.