INTERRUPT_ON_BLOCKING 1612 thread.c       		    return INTERRUPT_ON_BLOCKING;
INTERRUPT_ON_BLOCKING 1658 thread.c       	  case INTERRUPT_ON_BLOCKING:
INTERRUPT_ON_BLOCKING 1659 thread.c       	    if (timing != INTERRUPT_ON_BLOCKING) {
INTERRUPT_ON_BLOCKING 2033 thread.c       	    VALUE err = rb_threadptr_pending_interrupt_deque(th, blocking_timing ? INTERRUPT_ON_BLOCKING : INTERRUPT_NONE);