util.lua

   1 function lua_async.yield()
   2         local co = assert(coroutine.running(), "yield called outside of an async function")
   3
   4         setTimeout(lua_async.resume, 0, co)
   5
   6         coroutine.yield()
   7 end
   8
   9 function lua_async.kill_thread()
  10         coroutine.yield(true)
  11 end
  12
  13 function lua_async.sleep(ms)
  14         await(Promise(function(resolve)
  15                 setTimeout(resolve, ms)
  16         end))
  17 end
  18
  19 function lua_async.run()
  20         local last_time = os.clock()
  21
  22         while true do
  23                 local current_time = os.clock()
  24                 local dtime = current_time - last_time
  25                 last_time = current_time
  26
  27                 lua_async.step(dtime)
  28         end
  29 end