50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
#include "djb2_hash.h"
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#include <stdlib.h>
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djb2_state_t *djb2_state_new()
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{
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djb2_state_t *state = (djb2_state_t *)malloc(sizeof(djb2_state_t));
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state->hashfunc = CMPH_HASH_DJB2;
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return state;
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}
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void djb2_state_destroy(djb2_state_t *state)
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{
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free(state);
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}
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cmph_uint32 djb2_hash(djb2_state_t *state, const char *k, cmph_uint32 keylen)
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{
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register cmph_uint32 hash = 5381;
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const unsigned char *ptr = (unsigned char *)k;
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cmph_uint32 i = 0;
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while (i < keylen)
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{
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hash = hash*33 ^ *ptr;
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++ptr, ++i;
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}
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return hash;
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}
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void djb2_state_dump(djb2_state_t *state, char **buf, cmph_uint32 *buflen)
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{
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*buf = NULL;
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*buflen = 0;
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return;
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}
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djb2_state_t *djb2_state_copy(djb2_state_t *src_state)
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{
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djb2_state_t *dest_state = (djb2_state_t *)malloc(sizeof(djb2_state_t));
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dest_state->hashfunc = src_state->hashfunc;
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return dest_state;
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}
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djb2_state_t *djb2_state_load(const char *buf, cmph_uint32 buflen)
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{
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djb2_state_t *state = (djb2_state_t *)malloc(sizeof(djb2_state_t));
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state->hashfunc = CMPH_HASH_DJB2;
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return state;
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}
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