mirror of
https://github.com/moparisthebest/pacman
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60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
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* graph.h - helpful graph structure and setup/teardown methods
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*
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* Copyright (c) 2006-2010 Pacman Development Team <pacman-dev@archlinux.org>
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* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h> /* off_t */
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#include "alpm_list.h"
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#include "util.h" /* MALLOC() */
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#include "alpm.h"
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struct __pmgraph_t {
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char state; /* 0: untouched, -1: entered, other: leaving time */
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void *data;
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off_t weight; /* weight of the node */
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struct __pmgraph_t *parent; /* where did we come from? */
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alpm_list_t *children;
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alpm_list_t *childptr; /* points to a child in children list */
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};
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typedef struct __pmgraph_t pmgraph_t;
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static pmgraph_t *_alpm_graph_new(void)
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{
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pmgraph_t *graph = NULL;
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MALLOC(graph, sizeof(pmgraph_t), RET_ERR(PM_ERR_MEMORY, NULL));
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if(graph) {
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graph->state = 0;
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graph->data = NULL;
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graph->parent = NULL;
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graph->children = NULL;
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graph->childptr = NULL;
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}
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return(graph);
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}
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static void _alpm_graph_free(void *data)
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{
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pmgraph_t *graph = data;
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alpm_list_free(graph->children);
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free(graph);
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}
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