/* Chrysalide - Outil d'analyse de fichiers binaires
 * snapshot.h - prototypes pour l'encodage des informations utiles aux instantanés
 *
 * Copyright (C) 2019 Cyrille Bagard
 *
 *  This file is part of Chrysalide.
 *
 *  Chrysalide is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Chrysalide 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Chrysalide.  If not, see <http://www.gnu.org/licenses/>.
 */


#ifndef _ANALYSIS_DB_MISC_SNAPSHOT_H
#define _ANALYSIS_DB_MISC_SNAPSHOT_H


#include <stdbool.h>
#include <stdint.h>


#include "../../../common/packed.h"



/* -------------------------- IDENTIFIANTS DES INSTANTANES -------------------------- */


#define SNAP_ID_RAND_SZ 32
#define SNAP_ID_HEX_SZ (SNAP_ID_RAND_SZ * 2 + 1)

/* Représentation d'un instantané */
typedef struct _snapshot_id_t
{
    char name[SNAP_ID_HEX_SZ];

} snapshot_id_t;


/* Construit un identifiant pour instantané de base de données. */
bool init_snapshot_id(snapshot_id_t *);

/* Construit un identifiant pour instantané de base de données. */
bool init_snapshot_id_from_text(snapshot_id_t *, const char *);

#define snapshot_id_as_string(id) (id)->name

/* Effectue une copie d'identifiant d'instantané. */
void copy_snapshot_id(snapshot_id_t *, const snapshot_id_t *);

/* Effectue la comparaison entre deux identifiants. */
int cmp_snapshot_id(const snapshot_id_t *, const snapshot_id_t *);

/* Importe la définition d'un identifiant d'instantané. */
bool unpack_snapshot_id(snapshot_id_t *, packed_buffer *);

/* Exporte la définition d'un identifiant d'instantané. */
bool pack_snapshot_id(const snapshot_id_t *, packed_buffer *);



/* --------------------------- PROPRIETES DES INSTANTANES --------------------------- */









#endif  /* _ANALYSIS_DB_MISC_SNAPSHOT_H */