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diff --git a/lib/cpp/src/concurrency/Thread.h b/lib/cpp/src/concurrency/Thread.h
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+/*
+ * 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.
+ */
+
+#ifndef _THRIFT_CONCURRENCY_THREAD_H_
+#define _THRIFT_CONCURRENCY_THREAD_H_ 1
+
+#include <stdint.h>
+#include <boost/shared_ptr.hpp>
+#include <boost/weak_ptr.hpp>
+
+namespace apache { namespace thrift { namespace concurrency {
+
+class Thread;
+
+/**
+ * Minimal runnable class.  More or less analogous to java.lang.Runnable.
+ *
+ * @version $Id:$
+ */
+class Runnable {
+
+ public:
+  virtual ~Runnable() {};
+  virtual void run() = 0;
+
+  /**
+   * Gets the thread object that is hosting this runnable object  - can return
+   * an empty boost::shared pointer if no references remain on thet thread  object
+   */
+  virtual boost::shared_ptr<Thread> thread() { return thread_.lock(); }
+
+  /**
+   * Sets the thread that is executing this object.  This is only meant for
+   * use by concrete implementations of Thread.
+   */
+  virtual void thread(boost::shared_ptr<Thread> value) { thread_ = value; }
+
+ private:
+  boost::weak_ptr<Thread> thread_;
+};
+
+/**
+ * Minimal thread class. Returned by thread factory bound to a Runnable object
+ * and ready to start execution.  More or less analogous to java.lang.Thread
+ * (minus all the thread group, priority, mode and other baggage, since that
+ * is difficult to abstract across platforms and is left for platform-specific
+ * ThreadFactory implemtations to deal with
+ *
+ * @see apache::thrift::concurrency::ThreadFactory)
+ */
+class Thread {
+
+ public:
+
+  typedef uint64_t id_t;
+
+  virtual ~Thread() {};
+
+  /**
+   * Starts the thread. Does platform specific thread creation and
+   * configuration then invokes the run method of the Runnable object bound
+   * to this thread.
+   */
+  virtual void start() = 0;
+
+  /**
+   * Join this thread. Current thread blocks until this target thread
+   * completes.
+   */
+  virtual void join() = 0;
+
+  /**
+   * Gets the thread's platform-specific ID
+   */
+  virtual id_t getId() = 0;
+
+  /**
+   * Gets the runnable object this thread is hosting
+   */
+  virtual boost::shared_ptr<Runnable> runnable() const { return _runnable; }
+
+ protected:
+  virtual void runnable(boost::shared_ptr<Runnable> value) { _runnable = value; }
+
+ private:
+  boost::shared_ptr<Runnable> _runnable;
+
+};
+
+/**
+ * Factory to create platform-specific thread object and bind them to Runnable
+ * object for execution
+ */
+class ThreadFactory {
+
+ public:
+  virtual ~ThreadFactory() {}
+  virtual boost::shared_ptr<Thread> newThread(boost::shared_ptr<Runnable> runnable) const = 0;
+
+  /** Gets the current thread id or unknown_thread_id if the current thread is not a thrift thread */
+
+  static const Thread::id_t unknown_thread_id;
+
+  virtual Thread::id_t getCurrentThreadId() const = 0;
+};
+
+}}} // apache::thrift::concurrency
+
+#endif // #ifndef _THRIFT_CONCURRENCY_THREAD_H_