rb_str_unlocktmp  498 ext/readline/readline.c         rb_str_unlocktmp(tmp);
rb_str_unlocktmp  741 include/ruby/intern.h VALUE rb_str_unlocktmp(VALUE);
rb_str_unlocktmp 4730 io.c               rb_ensure(read_internal_call, (VALUE)&arg, rb_str_unlocktmp, str);
rb_str_unlocktmp 2435 string.c           return rb_ensure(func, arg, rb_str_unlocktmp, str);