kernel/poll.h


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#include <stdint.h>
#include <stddef.h>

#define POLLIN (1 << 0)
#define POLLPRI (1 << 1)
#define POLLOUT (1 << 2)
#define POLLHUP (1 << 3)

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

int poll(struct pollfd *fds, size_t nfds, int timeout);