init.lua

@@ -1340,7 +1340,7 @@ end
 function thread.hold(n, opt)
 	thread._Requests()
 	local opt = opt or {}
-	if type(opt)=="table" then
+	if type(opt)=="table" and type(n) == "function" then
 		interval = opt.interval
 		if opt.cycles then
 			return yield(CMD, t_holdW, opt.cycles or 1, n or dFunc, interval)
@@ -1350,6 +1350,7 @@ function thread.hold(n, opt)
 			return yield(CMD, t_skip, opt.skip or 1, nil, interval)
 		end
 	end
+
 	if type(n) == "number" then
 		thread.getRunningThread().lastSleep = clock()
 		return yield(CMD, t_sleep, n or 0, nil, interval)

integration/lanesManager/threads.lua

@@ -137,9 +137,19 @@ local function INIT(__GlobalLinda, __SleepingLinda, __StatusLinda, __Console)
         end
     end
 
+    function THREAD.defer(func)
+        local m = {onexit = function() func() end}
+        if _VERSION >= "Lua 5.2" then
+            setmetatable(m, {__gc = m.onexit})
+        else
+            m.sentinel = newproxy(true)
+            getmetatable(m.sentinel).__gc = m.onexit
+        end
+    end
+
     return GLOBAL, THREAD
 end
 
-return {init = function(g,s,st,c)
-    return INIT(g,s,st,c)
+return {init = function(g,s,st,c,onexit)
+    return INIT(g,s,st,c,onexit)
 end}

integration/loveManager/threads.lua

@@ -152,6 +152,10 @@ function INIT()
         end
     end
 
+    function THREAD.defer(func)
+        multi.OnExit(func)
+    end
+
     return GLOBAL, THREAD
 end
 

integration/pseudoManager/threads.lua

@@ -88,6 +88,8 @@ local function INIT(thread)
     THREAD.sleep = thread.sleep
 
     THREAD.hold = thread.hold
+
+    THREAD.defer = thread.defer
 	
 	function THREAD.setENV(env, name)
         name = name or "__env"

tests/threadtests.lua

@@ -44,13 +44,32 @@ multi:newThread("Scheduler Thread",function()
     --     multi:Stop()
     --     os.exit(1)
     -- end)
+
     queue = multi:newSystemThreadedQueue("Test_Queue"):init()
+    defer_queue = multi:newSystemThreadedQueue("Defer_Queue"):init()
 
     multi:newSystemThread("Test_Thread_0", function()
+        defer_queue = THREAD.waitFor("Defer_Queue"):init()
+        
+        THREAD.defer(function()
+            defer_queue:push("done")
+            multi.print("This function was defered until the end of the threads life")
+        end)
+
+        multi.print("Testing defer, should print below this")
+
         if THREAD_NAME~="Test_Thread_0" then
             multi.error("The name should be Test_Thread_0",THREAD_NAME,THREAD_NAME,_G.THREAD_NAME)
         end
     end)
+
+    thread:newThread(function()
+        if thread.hold(function()
+            return defer_queue:pop() == "done"
+        end,{sleep=1}) == nil then
+            multi.error("Thread.defer didn't work!")
+        end
+    end)    
     
     th1 = multi:newSystemThread("Test_Thread_1", function(a,b,c,d,e,f)
         queue = THREAD.waitFor("Test_Queue"):init()