#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "kernel_list.h"

struct fsync_inode_entry {
	struct list_head list;  /* list head */
	int data;
};

struct list_head my_list;

int main(void)
{
	struct list_head *this;
	struct fsync_inode_entry *entry, *tmp;
	int i;

	INIT_LIST_HEAD(&my_list);

	for (i = 0; i < 10; i++) {
		entry = malloc(sizeof(*entry));
		entry->data = i;
		list_add(&entry->list, &my_list);
	}

	list_for_each(this, &my_list) {
		entry = list_entry(this, struct fsync_inode_entry, list);
		printf("%d %p %p %p\n", entry->data, this, entry, &entry->list);
	}

	/* this way of deleting will segfault on the second iteration */
	list_for_each(this, &my_list) {
		entry = list_entry(this, struct fsync_inode_entry, list);
		printf("deleting %p\n", &entry->list);
		list_del(&entry->list); 
	}

	/* this is the right way to delete the list */
	list_for_each_entry_safe(entry, tmp, &my_list, list) {
		list_del(&entry->list);
	}
	printf("deleted list\n");

	/* this will never print anything because we deleted the list. */
	list_for_each(this, &my_list) {
		entry = list_entry(this, struct fsync_inode_entry, list);
		printf("%d\n", entry->data);
	}

	return 0;
}