initial version of VSAP

Signed-off-by: Yu Ping <ping.yu@intel.com>
Change-Id: I04d9150f0c7607ba20de9096b452476eff1622fc

1 files changed, 55 insertions, 0 deletions

diff --git a/nginx/src/core/ngx_radix_tree.h b/nginx/src/core/ngx_radix_tree.h
new file mode 100644
index 0000000..4fe06e0
--- /dev/null
+++ b/nginx/src/core/ngx_radix_tree.h
@@ -0,0 +1,55 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#ifndef _NGX_RADIX_TREE_H_INCLUDED_
+#define _NGX_RADIX_TREE_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+#define NGX_RADIX_NO_VALUE   (uintptr_t) -1
+
+typedef struct ngx_radix_node_s  ngx_radix_node_t;
+
+struct ngx_radix_node_s {
+    ngx_radix_node_t  *right;
+    ngx_radix_node_t  *left;
+    ngx_radix_node_t  *parent;
+    uintptr_t          value;
+};
+
+
+typedef struct {
+    ngx_radix_node_t  *root;
+    ngx_pool_t        *pool;
+    ngx_radix_node_t  *free;
+    char              *start;
+    size_t             size;
+} ngx_radix_tree_t;
+
+
+ngx_radix_tree_t *ngx_radix_tree_create(ngx_pool_t *pool,
+    ngx_int_t preallocate);
+
+ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree,
+    uint32_t key, uint32_t mask, uintptr_t value);
+ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree,
+    uint32_t key, uint32_t mask);
+uintptr_t ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key);
+
+#if (NGX_HAVE_INET6)
+ngx_int_t ngx_radix128tree_insert(ngx_radix_tree_t *tree,
+    u_char *key, u_char *mask, uintptr_t value);
+ngx_int_t ngx_radix128tree_delete(ngx_radix_tree_t *tree,
+    u_char *key, u_char *mask);
+uintptr_t ngx_radix128tree_find(ngx_radix_tree_t *tree, u_char *key);
+#endif
+
+
+#endif /* _NGX_RADIX_TREE_H_INCLUDED_ */