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/*
* Copyright (c) 2011, 2016 Nicira, 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.
*/
#ifndef HMAPX_H
#define HMAPX_H
#include "openvswitch/hmap.h"
struct hmapx_node {
struct hmap_node hmap_node;
void *data;
};
/* A set of "void *" pointers. */
struct hmapx {
struct hmap map;
};
#define HMAPX_INITIALIZER(HMAPX) { HMAP_INITIALIZER(&(HMAPX)->map) }
/* Basics. */
void hmapx_init(struct hmapx *);
void hmapx_destroy(struct hmapx *);
void hmapx_clone(struct hmapx *, const struct hmapx *);
void hmapx_swap(struct hmapx *, struct hmapx *);
void hmapx_moved(struct hmapx *);
/* Count. */
bool hmapx_is_empty(const struct hmapx *);
size_t hmapx_count(const struct hmapx *);
/* Insertion. */
struct hmapx_node *hmapx_add(struct hmapx *, void *);
void hmapx_add_assert(struct hmapx *, void *);
/* Deletion. */
void hmapx_clear(struct hmapx *);
void hmapx_delete(struct hmapx *, struct hmapx_node *);
bool hmapx_find_and_delete(struct hmapx *, const void *);
void hmapx_find_and_delete_assert(struct hmapx *, const void *);
/* Search. */
struct hmapx_node *hmapx_find(const struct hmapx *, const void *);
bool hmapx_contains(const struct hmapx *, const void *);
bool hmapx_equals(const struct hmapx *, const struct hmapx *);
/* Iteration. */
/* Iterates through every hmapx_node in HMAPX. */
#define HMAPX_FOR_EACH(NODE, HMAPX) \
HMAP_FOR_EACH_INIT(NODE, hmap_node, &(HMAPX)->map, \
BUILD_ASSERT_TYPE(NODE, struct hmapx_node *), \
BUILD_ASSERT_TYPE(HMAPX, struct hmapx *))
/* Safe when NODE may be freed (not needed when NODE may be removed from the
* hash map but its members remain accessible and intact). */
#define HMAPX_FOR_EACH_SAFE_SHORT(NODE, HMAPX) \
HMAP_FOR_EACH_SAFE_SHORT_INIT (NODE, hmap_node, &(HMAPX)->map, \
BUILD_ASSERT_TYPE(NODE, struct hmapx_node *), \
BUILD_ASSERT_TYPE(HMAPX, struct hmapx *))
#define HMAPX_FOR_EACH_SAFE_LONG(NODE, NEXT, HMAPX) \
HMAP_FOR_EACH_SAFE_LONG_INIT (NODE, NEXT, hmap_node, &(HMAPX)->map, \
BUILD_ASSERT_TYPE(NODE, struct hmapx_node *), \
BUILD_ASSERT_TYPE(NEXT, struct hmapx_node *), \
BUILD_ASSERT_TYPE(HMAPX, struct hmapx *))
#define HMAPX_FOR_EACH_SAFE(...) \
OVERLOAD_SAFE_MACRO(HMAPX_FOR_EACH_SAFE_LONG, \
HMAPX_FOR_EACH_SAFE_SHORT, \
3, __VA_ARGS__)
#endif /* hmapx.h */
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