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Re: [glob2-devel] Embedded scripting language (again)


From: Martin Voelkle
Subject: Re: [glob2-devel] Embedded scripting language (again)
Date: Wed, 22 Feb 2006 09:10:34 +0100

> from http://www.boost.org/libs/python/doc/v2/faq.html
>
> ==
>
> Is Boost.Python thread-aware/compatible with multiple interpreters?
>
> Niall Douglas provides these notes:
>
>  The quick answer to this is: no.
>
>  The longer answer is that it can be patched to be so, but it's complex. You
> will need to add custom lock/unlock wrapping of every time your code enters
> Boost.Python (particularly every virtual function override) plus heavily
> modify boost/python/detail/invoke.hpp with custom unlock/lock wrapping of
> every time Boost.Python enters your code. You must furthermore take care to
> not unlock/lock when Boost.Python is invoking iterator changes via
> invoke.hpp.
>  There is a patched invoke.hpp posted on the C++-SIG mailing list archives and
> you can find a real implementation of all the machinery necessary to fully
> implement this in the TnFOX project at  this SourceForge project location.
>
> ==
>
> The project they talk about is there :
> http://sourceforge.net/projects/tnfox
> But the CVS looks empty :-(

The problem described there is about real multithreading with
preemption. Coroutines don't have this problem.

Martin




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