creaImageIOListener.cpp

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/*
# ---------------------------------------------------------------------
#
# Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image 
#                        pour la Santé)
# Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
# Previous Authors : Laurent Guigues, Jean-Pierre Roux
# CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
#
#  This software is governed by the CeCILL-B license under French law and 
#  abiding by the rules of distribution of free software. You can  use, 
#  modify and/ or redistribute the software under the terms of the CeCILL-B 
#  license as circulated by CEA, CNRS and INRIA at the following URL 
#  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
#  or in the file LICENSE.txt.
#
#  As a counterpart to the access to the source code and  rights to copy,
#  modify and redistribute granted by the license, users are provided only
#  with a limited warranty  and the software's author,  the holder of the
#  economic rights,  and the successive licensors  have only  limited
#  liability. 
#
#  The fact that you are presently reading this means that you have had
#  knowledge of the CeCILL-B license and that you accept its terms.
# ------------------------------------------------------------------------
*/


#include <creaImageIOListener.h>
#include <creaImageIOSystem.h>
#include "boost/filesystem.hpp"
#include <boost/filesystem/operations.hpp>
#include <boost/utility.hpp>

namespace fs = boost::filesystem;
using boost::filesystem::path;

using namespace crea;

namespace creaImageIO
{
  //=====================================================================
  // CTor
  Listener::Listener()
  {

        boost::mutex::scoped_lock lock(mMutex);
    GimmickDebugMessage(6,"Listener::Listener"
                        <<std::endl);
        mDrive="E:";
        mMounted=false;
        mAddFiles=false;
        mRemoveFiles=true;

  }
  //=====================================================================

  //=====================================================================
  Listener::~Listener()
  {
    boost::mutex::scoped_lock lock(mMutex);
    GimmickDebugMessage(6,"Listener::~Listener"
                        <<std::endl);
  }
  //=====================================================================

  void*  Listener::Entry()
  {       
    GimmickDebugMessage(6,"Listener::Entry()"<<std::endl);
        while(!TestDestroy())
          { 
                try  
                {
                        fs::exists( mDrive );
                        if(!mMounted && mAddFiles)
                        {
                                mMounted=true;
                                SendSignal(mMounted);           
                        }
                        else if(!mMounted)
                        {
                                mMounted=true;
                        }
                        
                }
                catch (...)
                {
                        if(mMounted && mRemoveFiles)
                        {
                          mMounted=false;
                          SendSignal(mMounted);
                        }
                        else if(mMounted)
                        {
                                mMounted=false;
                        }
                }

                clock_t endwait;
                endwait = clock () + 0.001 * CLOCKS_PER_SEC ;
                while (clock() < endwait ) {}
                        
      }
    return 0;
  }

  //=====================================================================

  //=====================================================================
  void Listener::OnExit()
  {
    GimmickDebugMessage(6,"Listener::OnExit() "<<std::endl);
  }

   //====================================================================
  void Listener::ConnectObserver(MountingCallbackType callback)
  {
    mMountingSignal.connect(callback);
  }

   //======================================================================
  void Listener::SendSignal(bool mount)
  {
          mMountingSignal(mount);
  }



 
} // EO namespace creaImageIO