Hello,
I am currently using luaproc in my video processing application, and
i need now to exchange userdata between workers (ie threads) thru
channels.
I use the "indirect" userdata mode, ie LUA userdata allocates a
void* pointer, and this pointer receives the address of my internal
C structure.
I plan to offer 2 modes for exchanging userdata with luaproc:
- copy mode : This will perform a raw copy of the userdata
content to the destination thread. There is no issue on that
point right now.
- move mode : This will allow the user to use a "zero copy"
mechanism, by just moving the userdata content pointer to the
destination thread. Of course, it means that the source thread
does not need anymore the userdata. So i want to find a way to
set the variable pointing to the userdata to 'nil', in order to
unvalidate the userdata on the source side.
Do you have a proper method to perform this move mode ?
Thanks for you answers,
Rgds, SF
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