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Right, but only one thread is in the vm at any point, 

I have a single process app, with multiple threads
running different Lua scripts.  If two threads enter 
the vm lib (compiled in a dll) at the same time - it 
crashes both.

Does the multistate version of Lua allow for
multiple threads in the same lib at the same time?

Jim Mathies

-----Original Message-----
From: []
Sent: Thursday, February 10, 2000 9:44 AM
To: Multiple recipients of list
Subject: Re: Managing states 

----- Original Message -----
From: "Jim Mathies" <>
To: "Multiple recipients of list" <>
Sent: Thursday, February 10, 2000 6:13 PM
Subject: RE: Managing states

> This is a single vm / multiple thread solution if I'm reading
> your description correctly?
> What about a multithreaded version of Lua?  Is that on the horizon?
> To get around this myself in Windows, I've been experimenting
> around with compiling the Lua src into a cross platform executable
> format such as elf, and then loading it manually into memory
> on a per thread basis.  My application requires a single
> Lua lib, one process, multiple threads all executing at the same time.
> I like the time slice idea, except - you have to call that suspend
> to give up control.  If a programmer doesn't do this - well, your
> program could lock up or fail.  Plus, performance isn't very good
> if you have say, 10 scripts running at the same time.

I'm using my Multistate Lua ( to have a
multithreaded Windows application. I have a state in each thread!