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79f1cbe @ejj lib: New data structure - smap.
ejj authored
1 /* Copyright (c) 2012 Nicira, Inc.
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License. */
14
15 #ifndef SMAP_H
16 #define SMAP_H 1
17
18 #include "hmap.h"
19
cccc135 @blp smap: New functions smap_from_json(), smap_to_json().
blp authored
20 struct json;
21
79f1cbe @ejj lib: New data structure - smap.
ejj authored
22 /* A map from string to string. */
23 struct smap {
24 struct hmap map; /* Contains "struct smap_node"s. */
25 };
26
27 struct smap_node {
28 struct hmap_node node; /* In struct smap's 'map' hmap. */
29 char *key;
30 char *value;
31 };
32
33 #define SMAP_INITIALIZER(SMAP) { HMAP_INITIALIZER(&(SMAP)->map) }
34
35 #define SMAP_FOR_EACH(SMAP_NODE, SMAP) \
36 HMAP_FOR_EACH (SMAP_NODE, node, &(SMAP)->map)
37
38 #define SMAP_FOR_EACH_SAFE(SMAP_NODE, NEXT, SMAP) \
39 HMAP_FOR_EACH_SAFE (SMAP_NODE, NEXT, node, &(SMAP)->map)
40
41 void smap_init(struct smap *);
42 void smap_destroy(struct smap *);
43
44 struct smap_node *smap_add(struct smap *, const char *, const char *);
45 bool smap_add_once(struct smap *, const char *, const char *);
46 void smap_add_format(struct smap *, const char *key, const char *, ...)
47 PRINTF_FORMAT(3, 4);
48 void smap_replace(struct smap *, const char *, const char *);
49
50 void smap_remove(struct smap *, const char *);
51c82a4 @blp smap: New function smap_steal().
blp authored
51 void smap_remove_node(struct smap *, struct smap_node *);
57c8677 @blp system-stats: Use "smap" instead of "shash".
blp authored
52 void smap_steal(struct smap *, struct smap_node *, char **keyp, char **valuep);
79f1cbe @ejj lib: New data structure - smap.
ejj authored
53 void smap_clear(struct smap *);
54
55 const char *smap_get(const struct smap *, const char *);
56 struct smap_node *smap_get_node(const struct smap *, const char *);
57 bool smap_get_bool(const struct smap *smap, const char *key, bool def);
58 int smap_get_int(const struct smap *smap, const char *key, int def);
59
60 bool smap_is_empty(const struct smap *);
61 size_t smap_count(const struct smap *);
62
4512aaa @ejj lib: Minor const tweak in smap library.
ejj authored
63 void smap_clone(struct smap *dst, const struct smap *src);
79f1cbe @ejj lib: New data structure - smap.
ejj authored
64 const struct smap_node **smap_sort(const struct smap *);
65
cccc135 @blp smap: New functions smap_from_json(), smap_to_json().
blp authored
66 void smap_from_json(struct smap *, const struct json *);
67 struct json *smap_to_json(const struct smap *);
68
79f1cbe @ejj lib: New data structure - smap.
ejj authored
69 #endif /* smap.h */
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