[erlang-questions] Calling into Lua from Erlang

[michael.truog@REDACTED]

An erlang port (reading from stdin/stdout in a separate OS process)
could be used.  If there were absolutely no errors, it would be trivial
to switch it to an erlang port driver (running as a VM process in a more
efficient way), but that is at your own risk of being harder to debug. 

-----Original Message-----
From: erlang-questions-bounces@REDACTED
[mailto:erlang-questions-bounces@REDACTED] On Behalf Of ext PJ Durai
Sent: Wednesday, January 07, 2009 11:27 AM
To: erlang-questions@REDACTED
Subject: Re: [erlang-questions] Calling into Lua from Erlang

Robert Raschke <rtrlists <at> googlemail.com> writes:

> 
> Hi,
> 
> I will need to call Lua scripts from within Erlang soon. I was 
> wondering if anyone has already looked into a slightly closer binding 
> than calling an external program to run the Lua script and marshalling

> via stdin/out?
> 
> I am currently undecided whether to make the Lua API available to be 
> invoked from Erlang (via a linked-in driver) or if it might be more 
> useful to write a Lua library that allows a Lua script to function as 
> an Erlang node (similar to the Erlang Jinterface lib for Java).
> 
> I would gratefully receive opinions and wisdom on this kind of stuff?

Aren't linked in drivers supposed to be dangerous in general?  A bug in
the C code can destabilize Erlang VM.

I would vote for Option 'Lua node'.
You can have multiple Lua VM's on multiple threads processing requests
coming in from Erlang nodes.  The possibilities are interesting.

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