View difference between Paste ID: HJ0YKjwR and Leyi4Xi1

 if clearEventLog then
 	print("Already initialised!")
 	return false
 end
-local function overwrite(original, fake)
+local KeyToClearLog = 59
-	original = function(sFilter)
+
 
 local stepsTaken = 0
 local isRestoring = fs.exists(".events")
 local fileInstance
 local waitingFor
-			if stepsTaken > TasksBetweenSleeps then
+
 local function overwrite(originaltable,originalname, fake, funcType)
 	originaltable[originalname] = function(...)
 		if isRestoring then
 			if not fileInstance then
 				fileInstance = fs.open(".events","r")
 			end
 			stepsTaken = stepsTaken + 1
 			if funcType == 1 and stepsTaken > TasksBetweenSleeps then
 				stepsTaken = 0
-				return original(sFilter) --recursive pull
+
 				fake("isomnia")
-			return textutils.unserialize(fakeEvent)
+
 			local fakeEvent = fileInstance.readLine()
 			if not fakeEvent or #fakeEvent == 0 then
 				isRestoring = false
 				fileInstance.close()
-			local event = {fake(sFilter)}
+
-			fileInstance.write(textutils.serialize(event))
+				if waitingFor then
-			fileInstance.write("\n")
+					if waitingFor[1] == "timer" then
-			if event and #event==2 and event[1] == "key" and event[2] == 59 then
+						fileInstance.write(textutils.serialize(waitingFor))
 						fileInstance.write("\n")
-				fs.delete(".events")
+						return unpack(waitingFor)
-				print("History deleted!")
+					end
 				end
 				return originaltable[originalname](...) --recursive pull
 			end
 			local fakeTable = textutils.unserialize(fakeEvent)
 			if fakeTable and fakeTable[1] then
 				if fakeTable[1] == "terminate" then
-overwrite(os.pullEventRaw,pull)
+					error( "Terminated", 0 )
 				end
-overwrite(math.random,rand)
+				if fakeTable[2] and fakeTable[2] == "timerStart" then
 					waitingFor = {"timer",fakeTable[1]}
 					return fakeTable[1]
 				end
 				if fakeTable[1] == "timer" then
 					waitingFor = nil
 				end
 			end
 			return unpack(fakeTable)
 		else
 			if not fileInstance then
 				fileInstance = fs.open(".events","w")
 			end
 			local event = {fake(...)}
 			if event ~= nil and event[1] ~= nil then
 				if funcType == 2 and tonumber(event[1]) then
 					event[2] = "timerStart"
 				end
 					fileInstance.write(textutils.serialize(event))
 					fileInstance.write("\n")
 				if #event==2 and event[1] == "key" and event[2] == KeyToClearLog then
 					clearEventLog()
 				end
 				if event[1] == "terminate" then
 					error( "Terminated", 0 )
 				end
 			end
 			return unpack(event)
 		end
 	end
 end
 function clearEventLog(noOutput)
 	fileInstance.close()
 	fileInstance = nil
 	fs.delete(".events")
 	if not noOutput then
 		local x,y = term.getCursorPos()
 		write("Event Log deleted!")
 		term.setCursorPos(x,y)
 	end
 	return true
 end
 local pull = os.pullEventRaw
 overwrite(os,"pullEvent",pull,1)
 local rand = math.random
 overwrite(math,"random",rand,0)
 local timer = os.startTimer
 overwrite(os,"startTimer",timer,2)
 local peri = peripheral.call
 overwrite(peripheral,"call",peri,0)
 local shutdown = os.shutdown
 os.shutdown = function()
 	clearEventLog(true)
 	shutdown()
 end
 local reboot = os.reboot
 os.reboot = function()
 	clearEventLog(true)
 	reboot()
 end
 if turtle then
 	for name,func in pairs(turtle.native) do
 		local privateFunc = func
 		overwrite(turtle,name,privateFunc,3)
 	end
 end