crc64.h

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/*
 * CDDL HEADER START
 *
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 *
 * CDDL HEADER END
*/
/*
 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 */
/*
 * Copyright 2023 Saso Kiselkov. All rights reserved.
 */
#ifndef _ACF_UTILS_CRC64_H_
#define _ACF_UTILS_CRC64_H_
 
#include <stdlib.h>
#include <stdint.h>
 
#include "acfutils/assert.h"
#include "acfutils/core.h"
 
#ifdef  __cplusplus
extern "C" {
#endif
 
API_EXPORT void crc64_init(void);
 
static inline void
crc64_state_init(uint64_t *crc)
{
    ASSERT(crc != NULL);
    *crc = (uint64_t)-1;
}
API_EXPORT void crc64_state_init_impl(uint64_t *crc);
API_EXPORT uint64_t crc64_append(uint64_t crc, const void *input, size_t sz);
API_EXPORT uint64_t crc64(const void *input, size_t sz);
 
API_EXPORT void crc64_srand(uint64_t seed);
API_EXPORT uint64_t crc64_rand(void);
API_EXPORT double crc64_rand_fract(void);
API_EXPORT double crc64_rand_normal(double sigma);
 
#ifdef  __cplusplus
}
#endif
 
#endif  /* _ACF_UTILS_CRC64_H_ */