rt-thread/components/dfs/include/dfs_poll.h

#ifndef DFS_POLL_H__
#define DFS_POLL_H__

#include <rtthread.h>

#ifdef RT_USING_POSIX
#include <sys/time.h> /* for struct timeval */

#define POLLIN          (0x01)
#define POLLRDNORM      (0x01)
#define POLLRDBAND      (0x01)
#define POLLPRI         (0x01)

#define POLLOUT         (0x02)
#define POLLWRNORM      (0x02)
#define POLLWRBAND      (0x02)

#define POLLERR         (0x04)
#define POLLHUP         (0x08)
#define POLLNVAL        (0x10)

#define POLLMASK_DEFAULT (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)

typedef unsigned int nfds_t;

struct pollfd
{
    int fd;
    short events;
    short revents;
};

int poll(struct pollfd *fds, nfds_t nfds, int timeout);
#endif

#endif