62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* Copyright (c) 2017 - 2022 LiteSpeed Technologies Inc. See LICENSE. */
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/*
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* lsquic_hash.c -- A generic hash
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*/
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#ifndef LSQUIC_HASH_H
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#define LSQUIC_HASH_H
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struct lsquic_hash;
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struct lsquic_hash_elem
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{
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TAILQ_ENTRY(lsquic_hash_elem)
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qhe_next_bucket,
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qhe_next_all;
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const void *qhe_key_data;
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void *qhe_value;
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unsigned qhe_key_len;
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unsigned qhe_hash_val;
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enum {
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QHE_HASHED = 1 << 0,
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} qhe_flags;
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};
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struct lsquic_hash *
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lsquic_hash_create (void);
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struct lsquic_hash *
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lsquic_hash_create_ext (int (*cmp)(const void *, const void *, size_t),
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unsigned (*hash)(const void *, size_t, unsigned seed));
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void
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lsquic_hash_destroy (struct lsquic_hash *);
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struct lsquic_hash_elem *
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lsquic_hash_insert (struct lsquic_hash *, const void *key, unsigned key_sz,
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void *value, struct lsquic_hash_elem *);
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struct lsquic_hash_elem *
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lsquic_hash_find (struct lsquic_hash *, const void *key, unsigned key_sz);
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#define lsquic_hashelem_getdata(el) ((el)->qhe_value)
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void
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lsquic_hash_erase (struct lsquic_hash *, struct lsquic_hash_elem *);
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void
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lsquic_hash_reset_iter (struct lsquic_hash *);
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struct lsquic_hash_elem *
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lsquic_hash_first (struct lsquic_hash *);
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struct lsquic_hash_elem *
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lsquic_hash_next (struct lsquic_hash *);
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unsigned
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lsquic_hash_count (struct lsquic_hash *);
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size_t
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lsquic_hash_mem_used (const struct lsquic_hash *);
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#endif
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