1 files changed, 47 insertions, 0 deletions
diff --git a/wsrep-lib/include/wsrep/sr_key_set.hpp b/wsrep-lib/include/wsrep/sr_key_set.hpp
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+++ b/wsrep-lib/include/wsrep/sr_key_set.hpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2018 Codership Oy <info@codership.com>
+ *
+ * This file is part of wsrep-lib.
+ *
+ * Wsrep-lib is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Wsrep-lib 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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with wsrep-lib.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef WSREP_SR_KEY_SET_HPP
+#define WSREP_SR_KEY_SET_HPP
+
+#include <set>
+#include <map>
+#include <string>
+
+namespace wsrep
+{
+    class key;
+    class sr_key_set
+    {
+    public:
+        typedef std::set<std::string> leaf_type;
+        typedef std::map<std::string, leaf_type > branch_type;
+        sr_key_set()
+            : root_()
+        { }
+        void insert(const wsrep::key& key);
+        const branch_type& root() const { return root_; }
+        void clear();
+        bool empty() const { return root_.empty(); }
+    private:
+        branch_type root_;
+    };
+}
+
+#endif // WSREP_KEY_SET_HPP