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#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#include <stdio.h>
int main() {
int kq=kqueue();
struct kevent kev;
struct timespec ts;
if (kq==-1) return 111;
EV_SET(&kev, 0 /* fd */, EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0);
ts.tv_sec=0; ts.tv_nsec=0;
if (kevent(kq,&kev,1,0,0,&ts)==-1) return 111;
{
struct kevent events[100];
int i,n;
ts.tv_sec=1; ts.tv_nsec=0;
switch (n=kevent(kq,0,0,events,100,&ts)) {
case -1: return 111;
case 0: puts("no data on fd #0"); break;
}
for (i=0; i<n; ++i) {
printf("ident %d, filter %d, flags %d, fflags %d, data %d\n",
events[i].ident,events[i].filter,events[i].flags,
events[i].fflags,events[i].data);
}
}
return 0;
}
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