poll.h

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#ifndef __POLL_H__
#define __POLL_H__
 
#include <signal.h>
#include <stdint.h>
 
#define POLLIN 1
#define POLLOUT 4
#define POLLNVAL 32
 
typedef uint32_t nfds_t;
 
struct pollfd {
    int fd;        /* File descriptor number */
    short events;  /* Requested events */
    short revents; /* Returned events */
};
 
int poll(struct pollfd *fds, nfds_t nfds, int timeout);
 
int ppoll(struct pollfd *fds,
          nfds_t nfds,
          const struct timespec *timeout_ts,
          const sigset_t *sigmask);
 
#endif