uv_has_ref        291 include/uv.h   UV_EXTERN int uv_has_ref(const uv_handle_t*);
uv_has_ref        422 test/test-ref.c   ASSERT(uv_has_ref((uv_handle_t*)&h) == 1);
uv_has_ref        424 test/test-ref.c   ASSERT(uv_has_ref((uv_handle_t*)&h) == 0);