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authorWarren Dukes <warren.dukes@gmail.com>2005-02-24 03:27:19 +0000
committerWarren Dukes <warren.dukes@gmail.com>2005-02-24 03:27:19 +0000
commit93b27fe8319f1f8d2b4f34bf5540cd4d58b73f80 (patch)
tree448ab53381f7b797179ea38cc6f362944e647b20 /src
parentfad348b285c5a5a9767493cff967da14617d3041 (diff)
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begin tree implementation
git-svn-id: https://svn.musicpd.org/mpd/trunk@2984 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src')
-rw-r--r--src/tree.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/tree.c b/src/tree.c
new file mode 100644
index 000000000..1f3b21546
--- /dev/null
+++ b/src/tree.c
@@ -0,0 +1,52 @@
+#include "tree.h"
+
+static inline TreeNode * newTreeNode() {
+ TreeNode * ret = malloc(sizeof(TreeNode));
+
+ ret->data[0] = NULL;
+ ret->data[1] = NULL;
+
+ ret->children[0] = NULL;
+ ret->children[1] = NULL;
+ ret->children[2] = NULL;
+
+ return ret;
+}
+
+static inline void freeTreeNode(TreeNode * node) {
+ free(node);
+}
+
+Tree * newTree(TreeFreeDataFunc * freeFunc, TreeCompareDataFunc * compareFunc) {
+ Tree * ret = malloc(sizeof(Tree));
+
+ ret->headNode = NULL;
+ ret->freeFunc = freeFunc;
+ ret->compareFunc = compareFunc;
+
+ return ret;
+}
+
+void freeTree(Tree * tree) {
+ TreeIterator * iter = newTreeIterator(tree, POSTORDER);
+
+ TreeNode * node;
+
+ if(data->freeFunc) {
+ void * data;
+
+ while( ( data = nextTreeIterator(iter) ) ) {
+
+ }
+
+ freeTreeIterator(iter);
+
+ iter = newTreeIterator(tree, POSTORDER);
+ }
+
+ while( ( node = nextNodeTreeIterator(iter) ) ) {
+ freeTreeNode(node);
+ }
+
+ freeTreeIterator(iter);
+}