poll1.c

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#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/io.h>
 
#include "common/print.h"
#include "user/common/syscalls.h"
 
poll_events_t poll1(fd_t fd, poll_events_t events, clock_t timeout)
{
    pollfd_t pollfd = {.fd = fd, .events = events};
    if (poll(&pollfd, 1, timeout) == ERR)
    {
        return POLLERR;
    }
    return pollfd.revents;
}