kvs: global logger and enhanced logs

score/kvs/BUILD

@@ -31,6 +31,7 @@ cc_library(
         "error.cpp",
         "internal/kvs_helper.cpp",
         "internal/kvs_helper.hpp",
+        "internal/logger.h",
         "kvs.cpp",
         "kvsbuilder.cpp",
         "kvsvalue.cpp",

score/kvs/internal/logger.h

@@ -0,0 +1,34 @@
+/********************************************************************************
+ * Copyright (c) 2025 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+#ifndef SCORE_KVS_INTERNAL_LOGGER_H
+#define SCORE_KVS_INTERNAL_LOGGER_H
+
+#include "score/mw/log/logger.h"
+#include <string_view>
+
+namespace score::mw::per::kvs
+{
+
+/// @brief Log context of KVS.
+constexpr std::string_view kLogContext{"SKVS"};
+
+/// @brief Returns the logger shared by all KVS instances.
+inline const score::mw::log::Logger& logger() noexcept
+{
+    static const score::mw::log::Logger instance{kLogContext};
+    return instance;
+}
+
+}  // namespace score::mw::per::kvs
+
+#endif  // SCORE_KVS_INTERNAL_LOGGER_H