rb_thread_set_current  143 thread.c         rb_thread_set_current(_th_stored); \
rb_thread_set_current  581 thread.c       	rb_thread_set_current(th);
rb_thread_set_current 1234 thread.c       	    rb_thread_set_current(th);
rb_thread_set_current 1273 thread.c           rb_thread_set_current(th);
rb_thread_set_current 2935 vm.c           	rb_thread_set_current(th);