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authorDan McGee <dan@archlinux.org>2008-02-15 20:57:30 -0600
committerDan McGee <dan@archlinux.org>2008-02-16 11:58:49 -0600
commit92ab7c33fb4d72eba070636f620f595dc4650ee9 (patch)
treeb2f70b7ee2b240868a8701e9a48fa3d778559378 /lib/libalpm/graph.h
parent6b07b5d34512ef361ebf04395f07965cb80d0ec3 (diff)
Move pmgraph_t struct and functions to their own header file
This will allow us to utilize this helpful type and functions in places besides dependency calculations. In addition, remove the public declaration of pmgraph_t in alpm.h- there is zero need to expose this internal type. Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/graph.h')
-rw-r--r--lib/libalpm/graph.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/libalpm/graph.h b/lib/libalpm/graph.h
new file mode 100644
index 00000000..e3e40023
--- /dev/null
+++ b/lib/libalpm/graph.h
@@ -0,0 +1,55 @@
+/*
+ * graph.h - helpful graph structure and setup/teardown methods
+ *
+ * Copyright (c) 2002-2008 by Judd Vinet <jvinet@zeroflux.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/>.
+ */
+
+#include "alpm_list.h"
+#include "util.h" /* MALLOC() */
+#include "alpm.h"
+
+struct __pmgraph_t {
+ char state; /* 0: untouched, -1: entered, other: leaving time */
+ void *data;
+ struct __pmgraph_t *parent; /* where did we come from? */
+ alpm_list_t *children;
+ alpm_list_t *childptr; /* points to a child in children list */
+};
+typedef struct __pmgraph_t pmgraph_t;
+
+static pmgraph_t *_alpm_graph_new(void)
+{
+ pmgraph_t *graph = NULL;
+
+ MALLOC(graph, sizeof(pmgraph_t), RET_ERR(PM_ERR_MEMORY, NULL));
+
+ if(graph) {
+ graph->state = 0;
+ graph->data = NULL;
+ graph->parent = NULL;
+ graph->children = NULL;
+ graph->childptr = NULL;
+ }
+ return(graph);
+}
+
+static void _alpm_graph_free(void *data)
+{
+ pmgraph_t *graph = data;
+ alpm_list_free(graph->children);
+ free(graph);
+}
+