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/*
* Copyright (c) 2020, 2022 VMware, Inc.
* Copyright (c) 2022 Red Hat, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include "lib/uuidset.h"
#include "lib/util.h"
void
uuidset_init(struct uuidset *set)
{
hmap_init(&set->uuids);
}
void
uuidset_destroy(struct uuidset *set)
{
if (set) {
uuidset_clear(set);
hmap_destroy(&set->uuids);
}
}
void uuidset_clear(struct uuidset *set)
{
struct uuidset_node *node;
HMAP_FOR_EACH_SAFE (node, hmap_node, &set->uuids) {
uuidset_delete(set, node);
}
}
struct uuidset_node *
uuidset_find(const struct uuidset *set, const struct uuid *uuid)
{
struct uuidset_node *node;
HMAP_FOR_EACH_WITH_HASH (node, hmap_node, uuid_hash(uuid), &set->uuids) {
if (uuid_equals(uuid, &node->uuid)) {
return node;
}
}
return NULL;
}
bool
uuidset_find_and_delete(struct uuidset *set, const struct uuid *uuid)
{
struct uuidset_node *node = uuidset_find(set, uuid);
if (node) {
uuidset_delete(set, node);
}
return !!node;
}
void
uuidset_insert(struct uuidset *set, const struct uuid *uuid)
{
if (!uuidset_find(set, uuid)) {
struct uuidset_node *node = xmalloc(sizeof *node);
node->uuid = *uuid;
hmap_insert(&set->uuids, &node->hmap_node, uuid_hash(&node->uuid));
}
}
void
uuidset_delete(struct uuidset *set, struct uuidset_node *node)
{
hmap_remove(&set->uuids, &node->hmap_node);
free(node);
}
struct uuid*
uuidset_array(const struct uuidset *set)
{
struct uuid *array = xmalloc(uuidset_count(set) * sizeof *array);
struct uuidset_node *node;
size_t i = 0;
UUIDSET_FOR_EACH (node, set) {
array[i++] = node->uuid;
}
return array;
}
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