1 files changed, 53 insertions, 0 deletions
diff --git a/src/lib/d2srv/d2_stats.h b/src/lib/d2srv/d2_stats.h
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+++ b/src/lib/d2srv/d2_stats.h
@@ -0,0 +1,53 @@
+// Copyright (C) 2021 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef D2_STATS_H
+#define D2_STATS_H
+
+#include <list>
+#include <string>
+
+namespace isc {
+namespace d2 {
+
+/// @brief Statistics Names.
+class D2Stats {
+public:
+    /// @brief Global NCR statistics names.
+    ///
+    /// - ncr-received
+    /// - ncr-invalid
+    /// - ncr-error
+    static const std::list<std::string> ncr;
+
+    /// @brief Global DNS update statistics names.
+    ///
+    /// - update-sent
+    /// - update-signed
+    /// - update-unsigned
+    /// - update-success
+    /// - update-timeout
+    /// - update-error
+    static const std::list<std::string> update;
+
+    /// @brief Key DNS update statistics names.
+    ///
+    /// - update-sent
+    /// - update-success
+    /// - update-timeout
+    /// - update-error
+    static const std::list<std::string> key;
+
+    /// @brief Initialize D2 statistics.
+    ///
+    /// @note: Add default samples if needed.
+    static void init();
+};
+
+} // namespace d2
+} // namespace isc
+
+#endif // D2_STATS_H