Lua registry ?

[J Doe <general@...>]

Hi,

I am currently reading "Lua Programming Gems" (2008), and had a rather basic question about a term that is used.

The term appears in chapter 1, "Lua per-thread library context", on  page 5.  The author mentions the "Lua registry":

"The first one was using the Lua registry to connect each thread to a userdata representing the context.  The thread itself could be used as the registry key."

I am aware that "Lua Programming Gems" references Lua 5.1.  My question is: was the term "Lua registry" used at that time for the global memory address space ?

From the text it sounds like the author is describing a table, in global memory where the thread object is used as the "registry" key.

Thanks,

- J