#pragma once

#define HASH_CSTR(str) murmur_hash64(str, strlen(str), 0)
#define HASH_STR(str, len)  murmur_hash64(str, len, 0)

const uint64_t HASH_UNUSED = 0xFFFFFFFFFFFFFFFFU;

enum {
	NEAREST_PRIME_8 = 11,
	NEAREST_PRIME_16 = 17,
	NEAREST_PRIME_32 = 37,
	NEAREST_PRIME_64 = 67,
	NEAREST_PRIME_128 = 131,
	NEAREST_PRIME_256 = 257,
	NEAREST_PRIME_512 = 521,
	NEAREST_PRIME_1024 = 1031
};

typedef struct hash {
	int count;
	int capacity;
	int element_size;
	uint64_t* keys;
	void* data;
} hash_t;

hash_t
hash_create(size_t capacity, size_t element_size);

void
hash_reset(hash_t* hash);

void
hash_add(hash_t* hash, uint64_t key, void* element);

void*
hash_get(hash_t hash, uint64_t key);