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On Jul 13, 2014, at 5:39 PM, Thiago L. <fakedme@gmail.com> wrote:

> 
> On 13/07/14 09:36 PM, Austin Einter wrote:
>> Hi All
>> Suppose I have Lua State L as a global variable in my C program.
>> 
>> If it is accessed and used by two different threads, is it required for me to protect the Lua State by using a semaphore/mutex.
>> 
>> OR
>> 
>> Lua State internally has a semaphore/mutex to protect itself.
>> 
>> Please let me know.
>> 
>> Austin
> I'm pretty sure they aren't thread-safe...
> 

You have to do this yourself.

—Tim