Ejemplos de sys_epoll_wait en C++ (Cpp)

Ejemplo n.º 1

Archivo: sys_oabi-compat.c Proyecto: ChineseDr/linux

asmlinkage long sys_oabi_epoll_wait(int epfd,
                                    struct oabi_epoll_event __user *events,
                                    int maxevents, int timeout)
{
    struct epoll_event *kbuf;
    mm_segment_t fs;
    long ret, err, i;

    if (maxevents <= 0 || maxevents > (INT_MAX/sizeof(struct epoll_event)))
        return -EINVAL;
    kbuf = kmalloc(sizeof(*kbuf) * maxevents, GFP_KERNEL);
    if (!kbuf)
        return -ENOMEM;
    fs = get_fs();
    set_fs(KERNEL_DS);
    ret = sys_epoll_wait(epfd, kbuf, maxevents, timeout);
    set_fs(fs);
    err = 0;
    for (i = 0; i < ret; i++) {
        __put_user_error(kbuf[i].events, &events->events, err);
        __put_user_error(kbuf[i].data,   &events->data,   err);
        events++;
    }
    kfree(kbuf);
    return err ? -EFAULT : ret;
}

Ejemplo n.º 2

Archivo: ioqueue_epoll.c Proyecto: LuLei2013/pjproject

    static int os_epoll_wait(int epfd, struct epoll_event *events,
			  int maxevents, int timeout)
    {
	int count;
	mm_segment_t oldfs = get_fs();
	set_fs(KERNEL_DS);
	count = sys_epoll_wait(epfd, events, maxevents, timeout);
	set_fs(oldfs);
	return count;
    }

Ejemplo n.º 3

static int faf_poll_thread(void *arg)
{
	static struct epoll_event events[FAF_POLL_MAXEVENTS];
	int epfd = (int)(long)arg;
	long ret;
	int i;

	set_task_comm(current, "faf_poll");

	for (;;) {
		ret = sys_epoll_wait(epfd, events, FAF_POLL_MAXEVENTS, -1);
		BUG_ON(ret < 0);

		for (i = 0; i < ret; i++)
			faf_poll_notify_nodes((unsigned long)events[i].data);
	}

	return 0;
}