# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1167779094 0
# Node ID 2e3754f376060d962befce1fa7b0de45233ab817
# Parent  b608d553e1e759f8470288386142870fc0e7869b
a sentinel must be black

diff --git a/src/core/ngx_rbtree.h b/src/core/ngx_rbtree.h
--- a/src/core/ngx_rbtree.h
+++ b/src/core/ngx_rbtree.h
@@ -50,6 +50,11 @@ void ngx_rbtree_insert_timer_value(ngx_r
     ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
 
 
+/* a sentinel must be black */
+
+#define ngx_rbtree_sentinel_init(node)   node->color = 0
+
+
 static ngx_inline ngx_rbtree_node_t *
 ngx_rbtree_min(ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
 {