move moses/src/* to moses/

1 files changed, 127 insertions, 0 deletions

diff --git a/moses/ThreadPool.h b/moses/ThreadPool.h
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+++ b/moses/ThreadPool.h
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+// $Id: ThreadPool.h 3045 2010-04-05 13:07:29Z hieuhoang1972 $
+
+/***********************************************************************
+Moses - factored phrase-based language decoder
+Copyright (C) 2009 University of Edinburgh
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+***********************************************************************/
+
+#ifndef moses_ThreadPool_h
+#define moses_ThreadPool_h
+
+#include <iostream>
+#include <queue>
+#include <vector>
+
+#ifdef WITH_THREADS
+#include <boost/bind.hpp>
+#include <boost/thread.hpp>
+#endif
+
+#ifdef BOOST_HAS_PTHREADS
+#include <pthread.h>
+#endif
+
+
+//#include "Util.h"
+
+
+/**
+  * Classes to implement a ThreadPool.
+**/
+namespace Moses {
+
+/** A task to be executed by the ThreadPool
+ */
+class Task
+{
+public:
+  virtual void Run() = 0;
+  virtual bool DeleteAfterExecution() { return true; }
+  virtual ~Task() {}
+};
+
+#ifdef WITH_THREADS
+
+class ThreadPool
+{
+ public:
+  /**
+   * Construct a thread pool of a fixed size.
+   **/
+  explicit ThreadPool(size_t numThreads);
+
+  ~ThreadPool() {
+    Stop();
+  }
+
+  /**
+   * Add a job to the threadpool.
+   **/
+  void Submit(Task* task);
+
+  /**
+   * Wait until all queued jobs have completed, and shut down
+   * the ThreadPool.
+   **/
+  void Stop(bool processRemainingJobs = false);
+
+  /**
+   * Set maximum number of queued threads (otherwise Submit blocks)
+   **/
+  void SetQueueLimit( size_t limit ) { m_queueLimit = limit; }
+
+private:
+  /**
+   * The main loop executed by each thread.
+   **/
+  void Execute();
+
+  std::queue<Task*> m_tasks;
+  boost::thread_group m_threads;
+  boost::mutex m_mutex;
+  boost::condition_variable m_threadNeeded;
+  boost::condition_variable m_threadAvailable;
+  bool m_stopped;
+  bool m_stopping;
+  size_t m_queueLimit;
+};
+
+class TestTask : public Task
+{
+public:
+  TestTask(int id) : m_id(id) {}
+
+  virtual void Run() {
+#ifdef BOOST_HAS_PTHREADS
+    pthread_t tid = pthread_self();
+#else
+	typedef void * pthread_t;
+    pthread_t tid = 0;
+#endif
+    std::cerr << "Executing " << m_id << " in thread id " << tid << std::endl;
+  }
+
+  virtual ~TestTask() {}
+
+private:
+  int m_id;
+};
+
+#endif //WITH_THREADS
+
+} // namespace Moses
+#endif  // moses_ThreadPool_h