rb_thread_wait_for 8153 eval.c         	rb_thread_wait_for(*timeout);
rb_thread_wait_for 8421 eval.c             rb_thread_wait_for(rb_time_timeval(INT2FIX(sec)));
rb_thread_wait_for 809 ext/socket/socket.c 		    rb_thread_wait_for(tv);
rb_thread_wait_for 976 process.c      	rb_thread_wait_for(rb_time_interval(argv[0]));