nginx-0.0.1-2003-12-04-17:53:00 import
diff --git a/src/core/ngx_rbtree.h b/src/core/ngx_rbtree.h
new file mode 100644
index 0000000..de6fef9
--- /dev/null
+++ b/src/core/ngx_rbtree.h
@@ -0,0 +1,36 @@
+#ifndef _NGX_RBTREE_H_INCLUDED_
+#define _NGX_RBTREE_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef struct ngx_rbtree_s ngx_rbtree_t;
+
+struct ngx_rbtree_s {
+ ngx_int_t key;
+ ngx_rbtree_t *left;
+ ngx_rbtree_t *right;
+ ngx_rbtree_t *parent;
+ void *data;
+};
+
+extern ngx_rbtree_t sentinel;
+
+
+void ngx_rbtree_insert(ngx_rbtree_t **root, ngx_rbtree_t *node);
+void ngx_rbtree_delete(ngx_rbtree_t **root, ngx_rbtree_t *node);
+
+
+ngx_inline static ngx_rbtree_t *ngx_rbtree_min(ngx_rbtree_t *root)
+{
+ while (root->left != &sentinel) {
+ root = root->left;
+ }
+
+ return root;
+}
+
+
+#endif /* _NGX_RBTREE_H_INCLUDED_ */
