if (mask & AE_READABLE) ee.events |= EPOLLIN;
if (mask & AE_WRITABLE) ee.events |= EPOLLOUT;
if (mask & AE_EXCEPTION) ee.events |= EPOLLPRI;
if (mask & AE_READABLE) ee.events |= EPOLLIN;
if (mask & AE_WRITABLE) ee.events |= EPOLLOUT;
if (mask & AE_EXCEPTION) ee.events |= EPOLLPRI;