#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <linux/watch_queue.h>

#define BUF_SIZE 256

int main(int argc, char **argv)
{
    int i, pipefd[2], result;

    for (i = 0; i < 1000; i++) {
        fprintf(stderr, "%d\n", i);
        result = pipe2(pipefd, O_NOTIFICATION_PIPE);
        if (result < 0) {
            fprintf(stderr, "Failed to create pipe2(2): %s\n",
                    strerror(errno));
            return errno;
        }

        result = ioctl(pipefd[0], IOC_WATCH_QUEUE_SET_SIZE, BUF_SIZE);
        if (result < 0) {
            fprintf(stderr, "Failed to set watch_queue size: %s\n",
                    strerror(errno));
            return errno;
        }

        close(pipefd[0]);
        close(pipefd[1]);
    }
    return 0;
}