dlcfunc_free       62 ext/dl/cfunc.c     val = Data_Make_Struct(rb_cDLCFunc, struct cfunc_data, 0, dlcfunc_free, data);
dlcfunc_free      101 ext/dl/cfunc.c   obj = Data_Make_Struct(klass, struct cfunc_data, 0, dlcfunc_free, data);