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diff --git a/Lock.h b/Lock.h
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+/*******************************************************************************
+ * Copyright (c) 2006 International Business Machines Corporation.             *
+ * All rights reserved. This program and the accompanying materials            *
+ * are made available under the terms of the Common Public License v1.0        *
+ * which accompanies this distribution, and is available at                    *
+ * http://www.opensource.org/licenses/cpl1.0.php                               *
+ *                                                                             *
+ * Contributors:                                                               *
+ *    Douglas M. pase - initial API and implementation                         *
+ *******************************************************************************/
+
+
+#if !defined(Lock_h)
+#define Lock_h
+
+#include <pthread.h>
+
+class Lock {
+public:
+    Lock();
+    ~Lock();
+    void lock();
+    int test();
+    void unlock();
+
+private:
+    pthread_mutex_t mutex;
+};
+
+#endif