RB_HEAD           271 include/uv-win.h RB_HEAD(uv_timer_tree_s, uv_timer_s);
RB_HEAD            37 src/unix/signal.c RB_HEAD(uv__signal_tree_s, uv_signal_s);
RB_HEAD            30 src/win/signal.c RB_HEAD(uv_signal_tree_s, uv_signal_s);