#include "clusterautoconfig.h"

#include <inttypes.h>

#include <unistd.h>

#include <stdio.h>

#include <stdint.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include "libgfs2.h"

void gfs2_special_free(struct special_blocks *blist)

{

	struct special_blocks *f;

	while(!osi_list_empty(&blist->list)) {

		f = osi_list_entry(blist->list.next, struct special_blocks,

				   list);

		osi_list_del(&f->list);

		free(f);

	}

}

struct special_blocks *blockfind(struct special_blocks *blist, uint64_t num)

{

	osi_list_t *head = &blist->list;

	osi_list_t *tmp;

	struct special_blocks *b;

	for (tmp = head->next; tmp != head; tmp = tmp->next) {

		b = osi_list_entry(tmp, struct special_blocks, list);

		if (b->block == num)

			return b;

	}

	return NULL;

}

void gfs2_special_add(struct special_blocks *blocklist, uint64_t block)

{

	struct special_blocks *b;

	b = malloc(sizeof(struct special_blocks));

	if (b) {

		memset(b, 0, sizeof(*b));

		b->block = block;

		osi_list_add_prev(&b->list, &blocklist->list);

	}

}

void gfs2_special_set(struct special_blocks *blocklist, uint64_t block)

{

	if (blockfind(blocklist, block))

		return;

	gfs2_special_add(blocklist, block);

}

void gfs2_special_clear(struct special_blocks *blocklist, uint64_t block)

{

	struct special_blocks *b;

	b = blockfind(blocklist, block);

	if (b) {

		osi_list_del(&b->list);

		free(b);

	}

}