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/*
* graph.h - helpful graph structure and setup/teardown methods
*
* Copyright (c) 2007-2021 Pacman Development Team <pacman-dev@archlinux.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ALPM_GRAPH_H
#define ALPM_GRAPH_H
#include <sys/types.h> /* off_t */
#include "alpm_list.h"
enum __alpm_graph_vertex_state {
ALPM_GRAPH_STATE_UNPROCESSED,
ALPM_GRAPH_STATE_PROCESSING,
ALPM_GRAPH_STATE_PROCESSED
};
typedef struct __alpm_graph_t {
void *data;
struct __alpm_graph_t *parent; /* where did we come from? */
alpm_list_t *children;
alpm_list_t *iterator; /* used for DFS without recursion */
off_t weight; /* weight of the node */
enum __alpm_graph_vertex_state state;
} alpm_graph_t;
alpm_graph_t *_alpm_graph_new(void);
void _alpm_graph_free(void *data);
#endif /* ALPM_GRAPH_H */
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