/*
 * Usurpation – utility functions.
 *
 * Copyright (C) 2019 Ramūnas Mažeikis
 * Copyright (C) 2019 Gediminas Jakutis
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; version 2.1
 * of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifndef USURPATION_UTILS_H
#define USURPATION_UTILS_H

#include <stdint.h>

#define MTU 1500

static const char heartbeat_device[] = "hey, hey!";
static const char heartbeat_server[] = "cover this area.";

/* standard status responses */
enum response {
	ERROR = -1,
	A_OK = 0, /* would be "OK", but clashes with some lib definitions */
	NONEWDATA,
	DEAD,
	EMPTY,
};

typedef struct uuid_s {
	char bytes[16];
} uuid_t;

int cmp_uuid(uuid_t *first, uuid_t *second);

/**
 * Fixed point number with one decimal digit of precision.
 */
typedef int fpi1_t;

fpi1_t fpi1_add(fpi1_t a, fpi1_t b);
fpi1_t fpi1_sub(fpi1_t a, fpi1_t b);
fpi1_t fpi1_mul(fpi1_t a, fpi1_t b);
fpi1_t fpi1_div(fpi1_t a, fpi1_t b);

#endif /* USURPATION_UTILS_H */