83 lines
3.4 KiB
C
83 lines
3.4 KiB
C
/*
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*
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***** BEGIN LICENSE BLOCK *****
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Copyright (C) 2009-2016 Olof Hagsand and Benny Holmgren
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Copyright (C) 2017-2019 Olof Hagsand
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Copyright (C) 2020-2022 Olof Hagsand and Rubicon Communications, LLC (Netgate)
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This file is part of CLIXON.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 3 or later (the "GPL"),
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in which case the provisions of the GPL are applicable instead
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of those above. If you wish to allow use of your version of this file only
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under the terms of the GPL, and not to allow others to
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use your version of this file under the terms of Apache License version 2,
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indicate your decision by deleting the provisions above and replace them with
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the notice and other provisions required by the GPL. If you do not delete
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the provisions above, a recipient may use your version of this file under
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the terms of any one of the Apache License version 2 or the GPL.
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***** END LICENSE BLOCK *****
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*/
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#ifndef _CLIXON_HASH_H_
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#define _CLIXON_HASH_H_
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struct clicon_hash {
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qelem_t h_qelem;
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char *h_key; /* Key must be NULL-terinated string */
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size_t h_vlen;
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void *h_val;
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};
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typedef struct clicon_hash *clicon_hash_t;
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clicon_hash_t *clicon_hash_init (void);
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int clicon_hash_free (clicon_hash_t *);
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clicon_hash_t clicon_hash_lookup (clicon_hash_t *head, const char *key);
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void *clicon_hash_value (clicon_hash_t *head, const char *key, size_t *vlen);
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clicon_hash_t clicon_hash_add (clicon_hash_t *head, const char *key, void *val, size_t vlen);
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int clicon_hash_del (clicon_hash_t *head, const char *key);
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int clicon_hash_dump(clicon_hash_t *head, FILE *f);
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int clicon_hash_keys(clicon_hash_t *hash, char ***vector, size_t *nkeys);
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/*
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* Macros to iterate over hash contents.
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* XXX A bit crude. Just as easy for app to loop through the keys itself.
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*
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* Example:
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* char *k;
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* clicon_hash_t *h = clicon_hash_init();
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*
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* clicon_hash_add(h, "colour", "red", 6);
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* clicon_hash_add(h, "name", "rudolf" 7);
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* clicon_hash_add(h, "species", "reindeer" 9);
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*
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* clicon_hash_each(h, k) {
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* printf ("%s = %s\n", k, (char *)clicon_hash_value(h, k, NULL));
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* } hash_each_end();
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*/
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#define clicon_hash_each(__hash__, __key__) \
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{ \
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int __i__; \
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size_t __n__; \
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char **__k__ = hash_keys((__hash__),&__n__); \
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if (__k__) { \
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for(__i__ = 0; __i__ < __n__ && ((__key__) = __k__[__i__]); __i__++)
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#define clicon_hash_each_end(__hash__) if (__k__) free(__k__); } }
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#endif /* _CLIXON_HASH_H_ */
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