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79f1cbe9f8
A smap is a string to string hash map. It has a cleaner interface than shash's which were traditionally used for the same purpose. This patch implements the data structure, and changes netdev and its providers to use it. Signed-off-by: Ethan Jackson <ethan@nicira.com>
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/* Copyright (c) 2012 Nicira, Inc.
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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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#ifndef SMAP_H
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#define SMAP_H 1
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#include "hmap.h"
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/* A map from string to string. */
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struct smap {
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struct hmap map; /* Contains "struct smap_node"s. */
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};
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struct smap_node {
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struct hmap_node node; /* In struct smap's 'map' hmap. */
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char *key;
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char *value;
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};
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#define SMAP_INITIALIZER(SMAP) { HMAP_INITIALIZER(&(SMAP)->map) }
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#define SMAP_FOR_EACH(SMAP_NODE, SMAP) \
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HMAP_FOR_EACH (SMAP_NODE, node, &(SMAP)->map)
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#define SMAP_FOR_EACH_SAFE(SMAP_NODE, NEXT, SMAP) \
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HMAP_FOR_EACH_SAFE (SMAP_NODE, NEXT, node, &(SMAP)->map)
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void smap_init(struct smap *);
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void smap_destroy(struct smap *);
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struct smap_node *smap_add(struct smap *, const char *, const char *);
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bool smap_add_once(struct smap *, const char *, const char *);
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void smap_add_format(struct smap *, const char *key, const char *, ...)
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PRINTF_FORMAT(3, 4);
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void smap_replace(struct smap *, const char *, const char *);
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void smap_remove(struct smap *, const char *);
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void smap_remove_node(struct smap *smap, struct smap_node *);
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void smap_clear(struct smap *);
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const char *smap_get(const struct smap *, const char *);
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struct smap_node *smap_get_node(const struct smap *, const char *);
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bool smap_get_bool(const struct smap *smap, const char *key, bool def);
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int smap_get_int(const struct smap *smap, const char *key, int def);
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bool smap_is_empty(const struct smap *);
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size_t smap_count(const struct smap *);
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void smap_clone(struct smap *dst, struct smap *src);
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const struct smap_node **smap_sort(const struct smap *);
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#endif /* smap.h */
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