2 * Copyright (c) 2011 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
27 struct hmap_node hmap_node;
31 /* A set of strings. */
36 #define SSET_INITIALIZER(SSET) { HMAP_INITIALIZER(&(SSET)->map) }
39 void sset_init(struct sset *);
40 void sset_destroy(struct sset *);
41 void sset_clone(struct sset *, const struct sset *);
42 void sset_swap(struct sset *, struct sset *);
43 void sset_moved(struct sset *);
46 bool sset_is_empty(const struct sset *);
47 size_t sset_count(const struct sset *);
50 struct sset_node *sset_add(struct sset *, const char *);
51 struct sset_node *sset_add_and_free(struct sset *, char *);
52 void sset_add_assert(struct sset *, const char *);
53 void sset_add_array(struct sset *, char **, size_t n);
56 void sset_clear(struct sset *);
57 void sset_delete(struct sset *, struct sset_node *);
58 bool sset_find_and_delete(struct sset *, const char *);
59 void sset_find_and_delete_assert(struct sset *, const char *);
60 char *sset_pop(struct sset *);
63 struct sset_node *sset_find(const struct sset *, const char *);
64 bool sset_contains(const struct sset *, const char *);
65 bool sset_equals(const struct sset *, const struct sset *);
67 /* Iteration macros. */
68 #define SSET_FOR_EACH(NAME, SSET) \
69 for ((NAME) = SSET_FIRST(SSET); \
70 SSET_NODE_FROM_NAME(NAME) != NULL; \
71 (NAME) = SSET_NEXT(SSET, NAME))
73 #define SSET_FOR_EACH_SAFE(NAME, NEXT, SSET) \
74 for ((NAME) = SSET_FIRST(SSET); \
75 (SSET_NODE_FROM_NAME(NAME) != NULL \
76 ? (NEXT) = SSET_NEXT(SSET, NAME), true \
80 /* Implementation helper macros. */
82 #define SSET_NODE_FROM_HMAP_NODE(HMAP_NODE) \
83 CONTAINER_OF(HMAP_NODE, struct sset_node, hmap_node)
84 #define SSET_NAME_FROM_HMAP_NODE(HMAP_NODE) \
85 ((const char *) (SSET_NODE_FROM_HMAP_NODE(HMAP_NODE)->name))
86 #define SSET_NODE_FROM_NAME(NAME) CONTAINER_OF(NAME, struct sset_node, name)
87 #define SSET_FIRST(SSET) SSET_NAME_FROM_HMAP_NODE(hmap_first(&(SSET)->map))
88 #define SSET_NEXT(SSET, NAME) \
89 SSET_NAME_FROM_HMAP_NODE( \
90 hmap_next(&(SSET)->map, &SSET_NODE_FROM_NAME(NAME)->hmap_node))