Re[2]: Lua Event driven programming
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- Subject: Re[2]: Lua Event driven programming
- From: Bulat Ziganshin <bulat.ziganshin@...>
- Date: Mon, 1 Jun 2009 16:48:05 +0400
Hello John,
Monday, June 1, 2009, 4:22:05 PM, you wrote:
> I created a Lua class implemented in C called "Delegate_List" which
> maintains a list of functions (the event handlers) and a metatable override
> for the Lua call operation makes a call on objects of this class call all
> the functions in the list in turn
just my two pennies: i hate to do any data manipulation in C
so for handling multiple event handlers i does the same in Lua:
handlers = {}
function add_handler(event,handler)
handlers[event] = append (handlers[event] or {}, handler)
end
add_handler("event1",
function(obj)
-- event1 handler
end)
-- Called from C in case of event
function event1(obj)
for _,v in ipairs(handlers.event1 or {})
v(obj)
end
end
--
Best regards,
Bulat mailto:Bulat.Ziganshin@gmail.com