53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/*
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* graph.c - helpful graph structure and setup/teardown methods
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*
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* Copyright (c) 2007-2011 Pacman Development Team <pacman-dev@archlinux.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 "config.h"
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#include "graph.h"
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#include "util.h"
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#include "log.h"
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pmgraph_t *_alpm_graph_new(void)
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{
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pmgraph_t *graph = NULL;
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CALLOC(graph, 1, sizeof(pmgraph_t), RET_ERR(PM_ERR_MEMORY, NULL));
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return graph;
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}
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void _alpm_graph_free(void *data)
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{
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pmgraph_t *graph = data;
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/* make my children forget about me */
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for(alpm_list_t *i = graph->children; i; i = i->next) {
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pmgraph_t *child = i->data;
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child->parent = NULL;
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}
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alpm_list_free(graph->children);
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/* and make my parents forget about me too */
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if(graph->parent) {
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alpm_list_t *me = alpm_list_find_ptr(graph->parent->children, &data);
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graph->parent->children = alpm_list_remove_item(graph->parent->children,
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me);
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}
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free(graph);
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}
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/* vim: set ts=2 sw=2 noet: */
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