local skynet = require "skynet" local mqueue = require "mqueue" skynet.start(function() local id = 0 local pingserver = skynet.newservice "pingserver" mqueue.register(function(str) id = id + 1 str = string.format("id = %d , %s",id, str) return skynet.call(pingserver, "lua", "PING", str) end) end)