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Bug #1998 ยป test-kqueue.c

ano, 09/07/2011 07:18 AM

 

#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sysexits.h>

#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int
main()
{
int sock[2];
struct kevent kc;
int kq;
char foo[1024];

if (socketpair(PF_LOCAL, SOCK_STREAM, 0, sock) < 0)
err(EX_TEMPFAIL, "socketpair");

if (write(sock[0], foo, sizeof(foo)) < 0)
err(EX_TEMPFAIL, "write");

close(sock[0]);

EV_SET(&kc, sock[1], EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, 0);

kq = kqueue();
if (kevent(kq, &kc, 1, NULL, 0, NULL) < 0)
err(EX_TEMPFAIL, "kqueue");

if (kevent(kq, NULL, 0, &kc, 1, NULL) < 0)
err(EX_TEMPFAIL, "kevent1");
printf("kevent1 done, flags: %04x\n", kc.flags);

if (kc.flags & EV_EOF) {
printf("kevent1 reported EOF, exiting\n");
exit(0);
}

if (kevent(kq, NULL, 0, &kc, 1, NULL) < 0)
err(EX_TEMPFAIL, "kevent2");
printf("kevent2 done, flags: %04x\n", kc.flags);

exit(0);
}
    (1-1/1)