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https://github.com/openvswitch/ovs
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9835576bc1
These functions will be used by the next patches. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/* Copyright (c) 2012, 2014, 2015 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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struct json;
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struct uuid;
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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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/* Initializer for an immutable struct smap 'SMAP' that contains a single
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* 'KEY'-'VALUE' pair, e.g.
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*
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* const struct smap smap = SMAP1_CONST1(&smap, "key", "value");
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*
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* An smap initialized this way must not be modified or destroyed.
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*
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* The 'KEY' argument is evaluated multiple times.
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*/
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#define SMAP_CONST1(SMAP, KEY, VALUE) { \
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HMAP_CONST1(&(SMAP)->map, \
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(&(struct smap_node) SMAP_NODE_INIT(KEY, VALUE).node)) \
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}
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#define SMAP_NODE_INIT(KEY, VALUE) { \
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HMAP_NODE_INIT(hash_string(KEY, 0)), \
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CONST_CAST(char *, KEY), \
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CONST_CAST(char *, VALUE) }
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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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struct smap_node *smap_add_nocopy(struct smap *, char *, 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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OVS_PRINTF_FORMAT(3, 4);
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void smap_add_ipv6(struct smap *, const char *, struct in6_addr *);
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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 *, struct smap_node *);
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void smap_steal(struct smap *, struct smap_node *, char **keyp, char **valuep);
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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_get_uuid(const struct smap *, const char *key, struct uuid *);
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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, const struct smap *src);
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const struct smap_node **smap_sort(const struct smap *);
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void smap_from_json(struct smap *, const struct json *);
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struct json *smap_to_json(const struct smap *);
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bool smap_equal(const struct smap *, const struct smap *);
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#endif /* smap.h */
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