POLLRDNORM
pfd[0].events = POLLRDNORM;
pfd[1].events = POLLRDNORM;
if (!(pfd[n].revents & POLLRDNORM))
if (pl[i].events & (POLLIN | POLLRDNORM)) {
if (pl[i].events & (POLLIN | POLLRDNORM))
pl[i].revents |= pl[i].events & (POLLIN | POLLRDNORM);
#define POLLNORM POLLRDNORM