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https://github.com/openvswitch/ovs
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72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Copyright (c) 2011 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef HMAPX_H
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#define HMAPX_H
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#include "hmap.h"
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struct hmapx_node {
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struct hmap_node hmap_node;
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void *data;
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};
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/* A set of "void *" pointers. */
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struct hmapx {
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struct hmap map;
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};
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#define HMAPX_INITIALIZER(HMAPX) { HMAP_INITIALIZER(&(HMAPX)->map) }
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/* Basics. */
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void hmapx_init(struct hmapx *);
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void hmapx_destroy(struct hmapx *);
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void hmapx_clone(struct hmapx *, const struct hmapx *);
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void hmapx_swap(struct hmapx *, struct hmapx *);
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void hmapx_moved(struct hmapx *);
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/* Count. */
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bool hmapx_is_empty(const struct hmapx *);
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size_t hmapx_count(const struct hmapx *);
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/* Insertion. */
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struct hmapx_node *hmapx_add(struct hmapx *, void *);
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void hmapx_add_assert(struct hmapx *, void *);
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/* Deletion. */
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void hmapx_clear(struct hmapx *);
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void hmapx_delete(struct hmapx *, struct hmapx_node *);
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bool hmapx_find_and_delete(struct hmapx *, const void *);
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void hmapx_find_and_delete_assert(struct hmapx *, const void *);
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/* Search. */
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struct hmapx_node *hmapx_find(const struct hmapx *, const void *);
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bool hmapx_contains(const struct hmapx *, const void *);
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bool hmapx_equals(const struct hmapx *, const struct hmapx *);
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/* Iteration. */
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/* Iterates through every hmapx_node in HMAPX. */
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#define HMAPX_FOR_EACH(NODE, HMAPX) \
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HMAP_FOR_EACH(NODE, hmap_node, &(HMAPX)->map)
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/* Safe when NODE may be freed (not needed when NODE may be removed from the
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* hash map but its members remain accessible and intact). */
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#define HMAPX_FOR_EACH_SAFE(NODE, NEXT, HMAPX) \
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HMAP_FOR_EACH_SAFE(NODE, NEXT, hmap_node, &(HMAPX)->map)
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#endif /* hmapx.h */
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