rb_thread_alone  9126 eval.c             if (rb_thread_alone()) return;
rb_thread_alone  1779 file.c             if (rb_thread_alone() || (op & LOCK_NB)) {
rb_thread_alone  244 process.c          if (!rb_thread_alone()) {	/* there're other threads to run */
rb_thread_alone  266 process.c      	if (rb_thread_alone()) flags = oflags;
rb_thread_alone  297 process.c      	if (!rb_thread_alone()) rb_thread_schedule();