utils.c
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utils.c
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	#include "utils.h"

	#include <string.h>
	#include <stdint.h>

	uint64_t hash_key(const char *key, size_t len) {
	uint64_t hash = 14695981039346656037ULL;
	size_t i = 0;

	for (; i + 8 <= len; i += 8) {
	uint64_t word;
	memcpy(&word, key + i, 8);
	hash ^= word;
	hash *= 1099511628211ULL;
	}

	for (; i < len; i++) {
	hash ^= (uint8_t)key[i];
	hash *= 1099511628211ULL;
	}

	return hash;
	}