Updated changes.md and fixed some bugs

docs/changes.md

@@ -84,6 +84,7 @@ Allows the user to have multi auto set priorities (Requires chronos). Also adds
 
 Added
 ---
+- multi:setTaskDelay(delay), Tasks which are now tied to a processor can have an optional delay between the execution between each task. Useful perhaps for rate limiting. Without a delay all grouped tasks will be handled in one step.
 - processor's now have a boost function which causes it to run its processes the number of times specified in the `boost(count)` function
 - thread.hold will now use a custom hold method for objects with a `Hold` method. This is called like `obj:Hold(opt)`. The only argument passed is the optional options table that thread.hold can pass. There is an exception for connection objects. While they do contain a Hold method, the Hold method isn't used and is there for proxy objects, though they can be used in non proxy/thread situations. Hold returns all the arguments that the connection object was fired with.
 - shared_table = STP:newSharedTable(tbl_name) -- Allows you to create a shared table that all system threads in a process have access to. Returns a reference to that table for use on the main thread. Sets `_G[tbl_name]` on the system threads so you can access it there.

init.lua

@@ -1085,6 +1085,7 @@ function multi:newProcessor(name, nothread, priority)
 	c.Mainloop = {}
 	c.Type = multi.registerType("process", "processes")
 	local Active =  nothread or false
+	local task_delay = 0
 	c.Name = name or ""
 	c.tasks = {}
 	c.threads = {}
@@ -1176,6 +1177,10 @@ function multi:newProcessor(name, nothread, priority)
 		c.process:Destroy()
 	end
 
+	function c:setTaskDelay(delay)
+		task_delay = tonumber(delay) or 0
+	end
+
 	c:newThread("Task Handler", function()
 		local self = multi:getCurrentProcess()
 		local function task_holder()
@@ -1187,6 +1192,9 @@ function multi:newProcessor(name, nothread, priority)
 			else
 				thread.hold(task_holder)
 			end
+			if task_delay~=0 then
+				thread.sleep(task_delay)
+			end
 		end
 	end).OnError(multi.error)
 	
@@ -2520,6 +2528,10 @@ end
 threadManager = multi:newProcessor("Global_Thread_Manager", nil, true).Start()
 threadManager.tasks = multi.tasks -- The main multi interface is a bit different.
 
+function multi:setTaskDelay(delay)
+	threadManager:setTaskDelay(delay)
+end
+
 function multi:getThreadManagerProcess()
 	return threadManager
 end

tests/test.lua

@@ -98,11 +98,18 @@ multi, thread = require("multi"):init{print=true,warn=true,error=true,debugging=
 -- multi:newTLoop(func, 1)
 
 -- multi:mainloop()
-for i = 1, 100 do
+
+multi:setTaskDelay(.05)
+multi:newTask(function()
+    for i = 1, 100 do
+        multi:newTask(function()
+            print("Task "..i)
+        end)
+    end
     multi:newTask(function()
-        print("Task "..i)
+        multi:Stop()
     end)
-end
+end)
 
 local conn = multi:newConnection()
 conn(function() print("Test 1") end)