File: threadcompress.h

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// ****************************************************************************
//  Project:        GUYMAGER
// ****************************************************************************
//  Programmer:     Guy Voncken
//                  Police Grand-Ducale
//                  Service de Police Judiciaire
//                  Section Nouvelles Technologies
// ****************************************************************************
//  Module:         Multi-threaded compression
// ****************************************************************************

// Copyright 2008, 2009, 2010, 2011 Guy Voncken
//
// This file is part of guymager.
//
// guymager is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// guymager 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with guymager. If not, see <http://www.gnu.org/licenses/>.

#ifndef __THREADCOMPRESS_H__
#define __THREADCOMPRESS_H__

#include "thread.h"

#ifndef __DEVICE_H__
  #include "device.h"
#endif

class t_ThreadCompressLocal;

class t_ThreadCompress: public t_Thread
{
   Q_OBJECT

   public:
      t_ThreadCompress ();
      t_ThreadCompress (t_pDevice pDevice, int ThreadNr);
     ~t_ThreadCompress ();

      static APIRET GetFifoExtraSpace (t_pDevice pDevice, unsigned int *pExtraSpace);

   protected:
      void run (void);

   signals:
      void SignalEnded (t_pDevice pDevice, int ThreadNr);

   private slots:
      void SlotFinished (void);

   private:
      t_ThreadCompressLocal *pOwn;
};

typedef t_ThreadCompress *t_pThreadCompress;

// ------------------------------------
//             Error codes
// ------------------------------------

enum
{
   ERROR_THREADCOMPRESS_CONSTRUCTOR_NOT_SUPPORTED = ERROR_BASE_THREADCOMPRESS + 1,
   ERROR_THREADCOMPRESS_ZLIB_FAILED,
   ERROR_THREADCOMPRESS_LIBEWF_FAILED,
   ERROR_THREADCOMPRESS_COMPRESSION_BUFFER_TOO_SMALL,
   ERROR_THREADCOMPRESS_INVALID_FORMAT
};

#endif