39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* Copyright (C) 2010, 2011 Tony Garnock-Jones. All rights reserved. */
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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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