Imported Upstream version 2.0.7.dfsgupstream/2.0.7.dfsg

1 files changed, 55 insertions, 0 deletions

diff --git a/src/prefix_tree.hpp b/src/prefix_tree.hpp
new file mode 100644
index 0000000..53c7c18
--- /dev/null
+++ b/src/prefix_tree.hpp
@@ -0,0 +1,55 @@
+/*
+    Copyright (c) 2007-2010 iMatix Corporation
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PREFIX_TREE_HPP_INCLUDED__
+#define __ZMQ_PREFIX_TREE_HPP_INCLUDED__
+
+#include <stddef.h>
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class prefix_tree_t
+    {
+    public:
+
+        prefix_tree_t ();
+        ~prefix_tree_t ();
+
+        void add (unsigned char *prefix_, size_t size_);
+        bool rm (unsigned char *prefix_, size_t size_);
+        bool check (unsigned char *data_, size_t size_);
+
+    private:
+
+        uint32_t refcnt;
+        unsigned char min;
+        unsigned char count;
+        union {
+            class prefix_tree_t *node;
+            class prefix_tree_t **table;
+        } next;
+    };
+
+}
+
+#endif
+