Re: DLL interface for Lua & C++

Hi Phil

As an alternative to assert/retract, where you need to pass terms among
threads, there is the recorded
database<http://www.swi-prolog.org/pldoc/man?section=foreign-recorded>
.

HTH Carlo



2013/8/29 Philipp Kraus <[email protected]>

> Hello,
>
> I have worked with SWIProlog for some years ago and I would like to use it
> for an own project. The project based on C++ (also C and a little bit
> Fortran) and Lua.
> I have created objects in Lua which should store Prolog information
> (atoms, etc). I would like to use Prologs planning and expert system. Each
> Lua object is mapped
> to it own C++ object and it stores its own dataset. This system is scaled
> over different CPU cores (at the moment 32) with MPI. Each object can be
> moved from one to another core.
>
> So I would like to create Prolog calls in Lua. I have found the C++ API
> reference to SWIProlog, so I can create a SWIProlog instance on my C++ side
> and so I can mapped the reference
> to Lua (Lua is written in C). My Lua objects stores the, data which should
> be used by Prolog, but the data can be modified many times and the dataset
> is small. So can I handle the
> dynamic dataset with SWIProlog in a fast way? I know only the retract /
> consult command, but I think this is very slow. I have got more than 10^6
> Lua objects with own datasets and each
> object call Prolog.
>
> So do you have got some useful ideas to create a structure with Lua, C++
> and SWIProlog in a fast way?
>
> Thanks a lot
>
> Phil
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