do some stuff outside the @synchronize
do some stuff outside the @synchronize
WoLpH/skim,WoLpH/skim,WoLpH/skim,WoLpH/skim,ycaihua/skim-app,ycaihua/skim-app,ycaihua/skim-app,ycaihua/skim-app,WoLpH/skim,ycaihua/skim-app