rte_uuid.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright (C) 1996, 1997, 1998 Theodore Ts'o.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, and the entire permission notice in its entirety,
 *    including the disclaimer of warranties.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
 * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
#ifndef _RTE_UUID_H_
#define _RTE_UUID_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <stdbool.h>
#include <stddef.h>
#include <string.h>

typedef unsigned char rte_uuid_t[16];

#define RTE_UUID_INIT(a, b, c, d, e) {      \
    ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, \
    ((a) >> 8) & 0xff, (a) & 0xff,      \
    ((b) >> 8) & 0xff, (b) & 0xff,      \
    ((c) >> 8) & 0xff, (c) & 0xff,      \
    ((d) >> 8) & 0xff, (d) & 0xff,      \
    ((e) >> 40) & 0xff, ((e) >> 32) & 0xff, \
    ((e) >> 24) & 0xff, ((e) >> 16) & 0xff, \
    ((e) >> 8) & 0xff, (e) & 0xff       \
}

bool rte_uuid_is_null(const rte_uuid_t uu);

static inline void rte_uuid_copy(rte_uuid_t dst, const rte_uuid_t src)
{
    memcpy(dst, src, sizeof(rte_uuid_t));
}

int rte_uuid_compare(const rte_uuid_t a, const rte_uuid_t b);

int rte_uuid_parse(const char *in, rte_uuid_t uu);

#define RTE_UUID_STRLEN (36 + 1)
void    rte_uuid_unparse(const rte_uuid_t uu, char *out, size_t len);

#ifdef __cplusplus
}
#endif

#endif /* RTE_UUID_H */