fix timer block

Author: sumneko

script/service/service.lua

@@ -165,12 +165,13 @@ function m.eventLoop()
     end
 
     local function doSomething()
+        timer.update()
         pub.step(false)
-        if not await.step() then
-            return false
+        if await.step() then
+            busy()
+            return true
         end
-        busy()
-        return true
+        return false
     end
 
     local function sleep()
@@ -185,10 +186,6 @@ function m.eventLoop()
     end
 
     while true do
-        if doSomething() then
-            goto CONTINUE
-        end
-        timer.update()
         if doSomething() then
             goto CONTINUE
         end