Re: userdata and the gc

[Chris Marrin <chris@...>]

Adrian Sietsma wrote:
> ...
> My specific problem is thread-related - can I pass a (referenced) full 
> userdata pointer to another thread for background i/o, trusting that Lua 
> will _never_ delete (or move) the memory pointed to, as long as the ud 
> stays referenced ?

Why not just point the userdata at a memory block that you allocate and 
then pass that to the other thread? Since you allocate it, you can be 
sure its address will not be changed by Lua, even if the userdata 
pointing at it moves around.

--
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