Using mutex lock since it is faster
Using mutex lock since it is faster

hfossli/AGGeometryKit,hfossli/AGGeometryKit,snown/AGGeometryKit,snown/AGGeometryKit,cookov/AGGeometryKit,snown/AGGeometryKit,hfossli/AGGeometryKit,hfossli/AGGeometryKit,cookov/AGGeometryKit,cookov/AGGeometryKit,cookov/AGGeometryKit,cookov/AGGeometryKit