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diff --git a/cpp/src/qpid/legacystore/jrnl/smutex.h b/cpp/src/qpid/legacystore/jrnl/smutex.h
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+++ b/cpp/src/qpid/legacystore/jrnl/smutex.h
@@ -0,0 +1,64 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+/**
+ * \file smutex.h
+ *
+ * Qpid asynchronous store plugin library
+ *
+ * Messaging journal scoped mutex class mrg::journal::smutex.
+ *
+ * \author Kim van der Riet
+ */
+
+
+#ifndef QPID_LEGACYSTORE_JRNL_SMUTEX_H
+#define QPID_LEGACYSTORE_JRNL_SMUTEX_H
+
+#include "qpid/legacystore/jrnl/jexception.h"
+#include <pthread.h>
+
+namespace mrg
+{
+namespace journal
+{
+
+    // Ultra-simple scoped mutex class that allows a posix mutex to be initialized and destroyed with error checks
+    class smutex
+    {
+    protected:
+        mutable pthread_mutex_t _m;
+    public:
+        inline smutex()
+        {
+            PTHREAD_CHK(::pthread_mutex_init(&_m, 0), "::pthread_mutex_init", "smutex", "smutex");
+        }
+        inline virtual ~smutex()
+        {
+            PTHREAD_CHK(::pthread_mutex_destroy(&_m), "::pthread_mutex_destroy", "smutex", "~smutex");
+        }
+        inline pthread_mutex_t* get() const { return &_m; }
+    };
+
+} // namespace journal
+} // namespace mrg
+
+#endif // ifndef QPID_LEGACYSTORE_JRNL_SMUTEX_H