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- Subject: Lua shared between processes
- From: George Sealy <george@...>
- Date: Sun, 14 Mar 2004 14:21:36 +1300
I've been experimenting with Lua for work, and have found it to be just
the tool I was looking for. However, I have a problem that I was hoping
someone may be able to help me with.
I need to have multiple processes running on a single machine (Win32),
all with access to a single instance of a "world state", which I want to
describe with Lua. My initial solution was to use shared memory in a
dll, which would allow all processes to access the single set of data.
However, when I use lua_open to create a new state, I can't see a way to
make that pointer be in shared memory... Initially I thought I could
create a copy of the Lua state variable, but that'll fall over
internally whenever Lua needs more memory.
The only other option I can think of is some form of communication
between processes, such as TCP/IP or memory mapping, but the world state
needs to be accessed many (hundreds or even thousands of) times a
second, so performance is an issue.
If anyone has any advice, I'd really appreciate it. I'd rather avoid
rewriting the entire language's memory allocation if I can help it!
George Sealy, PhD email : firstname.lastname@example.org
Software Developer / Architect phone : +64 3 477 2995
Animation Research Ltd