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Merge branch 'pr/1345'
[collectd.git]
/
src
/
daemon
/
utils_avltree.c
diff --git
a/src/daemon/utils_avltree.c
b/src/daemon/utils_avltree.c
index
04e5403
..
58b8b84
100644
(file)
--- a/
src/daemon/utils_avltree.c
+++ b/
src/daemon/utils_avltree.c
@@
-146,6
+146,9
@@
static c_avl_node_t *rotate_right (c_avl_tree_t *t, c_avl_node_t *x)
c_avl_node_t *y;
c_avl_node_t *b;
c_avl_node_t *y;
c_avl_node_t *b;
+ assert (x != NULL);
+ assert (x->left != NULL);
+
p = x->parent;
y = x->left;
b = y->right;
p = x->parent;
y = x->left;
b = y->right;
@@
-170,7
+173,7
@@
static c_avl_node_t *rotate_right (c_avl_tree_t *t, c_avl_node_t *x)
y->height = calc_height (y);
return (y);
y->height = calc_height (y);
return (y);
-} /* void rotate_
lef
t */
+} /* void rotate_
righ
t */
/*
* (x) (y)
/*
* (x) (y)
@@
-187,6
+190,9
@@
static c_avl_node_t *rotate_left (c_avl_tree_t *t, c_avl_node_t *x)
c_avl_node_t *y;
c_avl_node_t *b;
c_avl_node_t *y;
c_avl_node_t *b;
+ assert (x != NULL);
+ assert (x->right != NULL);
+
p = x->parent;
y = x->right;
b = y->left;
p = x->parent;
y = x->right;
b = y->left;
@@
-617,10
+623,18
@@
int c_avl_pick (c_avl_tree_t *t, void **key, void **value)
n = t->root;
while ((n->left != NULL) || (n->right != NULL))
{
n = t->root;
while ((n->left != NULL) || (n->right != NULL))
{
- int height_left = (n->left == NULL) ? 0 : n->left->height;
- int height_right = (n->right == NULL) ? 0 : n->right->height;
+ if (n->left == NULL)
+ {
+ n = n->right;
+ continue;
+ }
+ else if (n->right == NULL)
+ {
+ n = n->left;
+ continue;
+ }
- if (
height_left > height_r
ight)
+ if (
n->left->height > n->right->he
ight)
n = n->left;
else
n = n->right;
n = n->left;
else
n = n->right;
@@
-638,6
+652,7
@@
int c_avl_pick (c_avl_tree_t *t, void **key, void **value)
*value = n->value;
free_node (n);
*value = n->value;
free_node (n);
+ --t->size;
rebalance (t, p);
return (0);
rebalance (t, p);
return (0);