54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Copyright 2010, 2011, 2012 Tony Garnock-Jones <tonygarnockjones@gmail.com>.
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*
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* This file is part of Hop.
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*
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* Hop is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Hop is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Hop. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef cmsg_hashtable_h
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#define cmsg_hashtable_h
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typedef struct hashtable_entry_t_ {
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struct hashtable_entry_t_ *next;
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cmsg_bytes_t key;
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void *value;
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} hashtable_entry_t;
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typedef struct hashtable_t_ {
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size_t bucket_count;
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size_t entry_count;
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hashtable_entry_t **buckets;
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void *(*dup_value)(void *);
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void (*free_value)(void *);
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} hashtable_t;
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typedef void (*hashtable_iterator_t)(void *context, cmsg_bytes_t key, void *value);
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extern uint32_t hash_bytes(cmsg_bytes_t bytes);
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extern void init_hashtable(hashtable_t *table,
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size_t initial_bucket_count,
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void *(*dup_value)(void *),
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void (*free_value)(void *));
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extern void destroy_hashtable(hashtable_t *table);
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extern int hashtable_contains(hashtable_t *table, cmsg_bytes_t key);
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extern int hashtable_get(hashtable_t *table, cmsg_bytes_t key, void **valueptr);
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extern int hashtable_put(hashtable_t *table, cmsg_bytes_t key, void *value);
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extern int hashtable_erase(hashtable_t *table, cmsg_bytes_t key);
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extern void hashtable_foreach(hashtable_t *table,
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hashtable_iterator_t iterator,
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void *context);
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#endif
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