refactor rpc_server.cpp
refactor rpc_server.cpp

AllisonWang/peloton,AllisonWang/peloton,yingjunwu/peloton,vittvolt/15721-peloton,AllisonWang/peloton,eric-haibin-lin/peloton-1,seojungmin/peloton,apavlo/peloton,phisiart/peloton-p3,cmu-db/peloton,cmu-db/peloton,eric-haibin-lin/peloton-1,yingjunwu/peloton,seojungmin/peloton,AngLi-Leon/peloton,prashasthip/peloton,AllisonWang/peloton,PauloAmora/peloton,vittvolt/15721-peloton,eric-haibin-lin/peloton-1,vittvolt/15721-peloton,vittvolt/peloton,seojungmin/peloton,prashasthip/peloton,phisiart/peloton-p3,ShuxinLin/peloton,ShuxinLin/peloton,jessesleeping/iso_peloton,PauloAmora/peloton,haojin2/peloton,yingjunwu/peloton,vittvolt/15721-peloton,seojungmin/peloton,ShuxinLin/peloton,jessesleeping/iso_peloton,phisiart/peloton-p3,PauloAmora/peloton,malin1993ml/peloton,AngLi-Leon/peloton,wangziqi2016/peloton,AllisonWang/peloton,apavlo/peloton,jessesleeping/iso_peloton,prashasthip/peloton,seojungmin/peloton,phisiart/peloton-p3,phisiart/peloton-p3,phisiart/peloton-p3,AngLi-Leon/peloton,cmu-db/peloton,AllisonWang/peloton,malin1993ml/peloton,apavlo/peloton,apavlo/peloton,ShuxinLin/peloton,apavlo/peloton,wangziqi2016/peloton,yingjunwu/peloton,jessesleeping/iso_peloton,vittvolt/peloton,eric-haibin-lin/peloton-1,haojin2/peloton,yingjunwu/peloton,wangziqi2016/peloton,yingjunwu/peloton,AngLi-Leon/peloton,ShuxinLin/peloton,jessesleeping/iso_peloton,vittvolt/peloton,AngLi-Leon/peloton,malin1993ml/peloton,vittvolt/peloton,malin1993ml/peloton,prashasthip/peloton,eric-haibin-lin/peloton-1,AngLi-Leon/peloton,vittvolt/15721-peloton,jessesleeping/iso_peloton,haojin2/peloton,cmu-db/peloton,PauloAmora/peloton,malin1993ml/peloton,wangziqi2016/peloton,eric-haibin-lin/peloton-1,apavlo/peloton,prashasthip/peloton,cmu-db/peloton,prashasthip/peloton,wangziqi2016/peloton,cmu-db/peloton,malin1993ml/peloton,haojin2/peloton,seojungmin/peloton,vittvolt/peloton,vittvolt/15721-peloton,wangziqi2016/peloton,haojin2/peloton,PauloAmora/peloton,haojin2/peloton,jessesleeping/iso_peloton,vittvolt/peloton,ShuxinLin/peloton,PauloAmora/peloton