事件驱动器

GEventMgr.lua

local GEventMgr = {}
local ClassModule = require "Class"
local Traceback = Traceback

local globalEventRegCache = {}--eventName<eventName<obj,true>>
function GEventMgr.RegEvent( eventName, obj )
	if not obj[eventName] then
		logwarning("GEventMgr.RegEvent","eventName:",eventName,"is not in obj:",ClassModule.GetClassName(obj))
	end
	local eventRegs = globalEventRegCache[eventName]
	if not eventRegs then
		eventRegs = setmetatable({},{__mode="k"})
		globalEventRegCache[eventName] = eventRegs
	end
	eventRegs[obj] = true
end

function GEventMgr.UnregEvent( eventName, obj )
	if not obj[eventName] then
		logwarning("GEventMgr.RegEvent","eventName:",eventName,"is not in obj:",ClassModule.GetClassName(obj))
	end
	local eventRegs = globalEventRegCache[eventName]
	if not eventRegs then
		eventRegs[obj] = nil
	end
end

---全局事件注册分发器
function GEventMgr.DispatchEvent( eventName,... )
	local eventRegs = globalEventRegCache[eventName]
	if not eventRegs then
		return 
	end
	for obj in pairs(eventRegs) do
		if not obj.__closeObj then
			xpcall(obj[eventName],Traceback,obj,...)
		end
	end
end

return GEventMgr

GEventMgr.md

关于事件驱动器

事件驱动模型与观察者模式