From dcec2fa8c90e0d169bcc12362acc0a78f545b31f Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Tue, 2 Jan 2007 23:04:54 +0000
Subject: [PATCH] a sentinel must be black

---
 src/core/ngx_rbtree.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/core/ngx_rbtree.h b/src/core/ngx_rbtree.h
index 008db2a25..16524ffc8 100644
--- a/src/core/ngx_rbtree.h
+++ b/src/core/ngx_rbtree.h
@@ -50,6 +50,11 @@ void ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *root,
     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)
 {