poll.h
#ifndef _ASM_POLL_H
#define _ASM_POLL_H
#define POLLIN 1
#define POLLPRI 2
#define POLLOUT 4
#define POLLERR 8
#define POLLHUP 16
#define POLLNVAL 32
#define POLLRDNORM 64
#define POLLWRNORM POLLOUT
#define POLLRDBAND 128
#define POLLWRBAND 256
#define POLLMSG 0x0400
#define POLLRDHUP 0x2000
struct pollfd {
int fd;
short events;
short revents;
};
#endif