Thread.h

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/********************************************************************
**                Image Component Library (ICL)                    **
**                                                                 **
** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
**                                                                 **
** File   : ICLUtils/src/ICLUtils/Thread.h                         **
** Module : ICLUtils                                               **
** Authors: Christof Elbrechter                                    **
**                                                                 **
**                                                                 **
** GNU LESSER GENERAL PUBLIC LICENSE                               **
** This file may be used under the terms of the GNU Lesser General **
** Public License version 3.0 as published by the                  **
**                                                                 **
** Free Software Foundation and appearing in the file LICENSE.LGPL **
** included in the packaging of this file.  Please review the      **
** following information to ensure the license requirements will   **
** be met: http://www.gnu.org/licenses/lgpl-3.0.txt                **
**                                                                 **
** The development of this software was supported by the           **
** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
** Forschungsgemeinschaft (DFG) in the context of the German       **
** Excellence Initiative.                                          **
**                                                                 **
********************************************************************/

#pragma once

#include <ICLUtils/CompatMacros.h>
#include <ICLUtils/ShallowCopyable.h>
#include <ICLUtils/Mutex.h>

namespace icl{
  namespace utils{
    
    class ICLUtils_API ThreadImpl;
    struct ICLUtils_API ThreadImplDelOp{
      static void delete_func( ThreadImpl* impl );
    };


    class ICLUtils_API Thread : public ShallowCopyable<ThreadImpl, ThreadImplDelOp>{
      public:
      
      Thread();
      
      virtual ~Thread();
      

      void start();
      
      virtual void stop();
      

      void wait();
      
      virtual void run()=0;
      
      virtual void finalize(){}
  
      
      static void usleep(unsigned int usec);
          

      static void msleep(unsigned int msecs);
      

      static void sleep(float secs);
      

      bool running() const;


      bool runningNoLock() const;
    
      protected:
  
      void exit();
  

      void lock();

      int trylock();
  
      void unlock();
    };
  
  

    template<class T>
    static inline void saveDelete(T* &pointer){
      static Mutex m;
      m.lock();
      ICL_DELETE(pointer);
      m.unlock();
    }

    template<class T, void (T::*func)()>
    static inline void saveCall(T *obj){
      static Mutex m;
      m.lock();
      (obj->*func)();
      m.unlock();
    }
  } // namespace utils
}