mainline: add server instance's name empty detection
mainline: add server instance's name empty detection

jmptrader/SuperSocket,ZixiangBoy/SuperSocket,fryderykhuang/SuperSocket,ZixiangBoy/SuperSocket,fryderykhuang/SuperSocket,jmptrader/SuperSocket,chucklu/SuperSocket,fryderykhuang/SuperSocket,mdavid/SuperSocket,jmptrader/SuperSocket,kerryjiang/SuperSocket,mdavid/SuperSocket,chucklu/SuperSocket,memleaks/SuperSocket,ZixiangBoy/SuperSocket,mdavid/SuperSocket,kerryjiang/SuperSocket,chucklu/SuperSocket