intervals.lua

   1 lua_async.intervals = {
   2         pool = {},
   3         last_id = 0,
   4 }
   5
   6 function setInterval(callback, ms, ...)
   7         local id = lua_async.intervals.last_id + 1
   8         lua_async.intervals.last_id = id
   9         local step_time = (ms or 0) / 1000
  10         lua_async.intervals.pool[id] = {
  11                 time_left = step_time,
  12                 step_time = step_time,
  13                 callback = callback,
  14                 args = {...},
  15         }
  16         return id
  17 end
  18
  19 function clearInterval(id)
  20         lua_async.intervals.pool[id] = nil
  21 end
  22
  23 function lua_async.intervals.step(dtime)
  24         for id, interval in pairs(lua_async.intervals.pool) do
  25                 interval.time_left = timeout.time_left - dtime
  26
  27                 if interval.time_left <= 0 then
  28                         interval.callback(unpack(interval.args))
  29                         interval.time_left = interval.step_time
  30                 end
  31         end
  32 end
  33