/*
   (c) Copyright 2001-2011  The world wide DirectFB Open Source Community (directfb.org)
   (c) Copyright 2000-2004  Convergence (integrated media) GmbH

   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Hundt <andi@fischlustig.de>,
              Sven Neumann <neo@directfb.org>,
              Ville Syrjälä <syrjala@sci.fi> and
              Claudio Ciccani <klan@users.sf.net>.

   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 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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef __VOODOO__CONNECTION_PACKET_H__
#define __VOODOO__CONNECTION_PACKET_H__

#include <voodoo/connection.h>

extern "C" {
#include <direct/thread.h>
}


class VoodooConnectionPacket : public VoodooConnection {
private:
     DirectThread               *io;

     struct {
          DirectMutex            lock;
          DirectWaitQueue        wait;
          u8                    *buffer;
          size_t                 start;
          size_t                 last;
          size_t                 end;
          size_t                 max;
     } input;

     struct {
          DirectMutex            lock;
          DirectWaitQueue        wait;
          u8                    *buffer;
          size_t                 start;
          size_t                 end;
     } output;

public:
     VoodooConnectionPacket( VoodooManager *manager,
                             VoodooLink    *link );

     virtual ~VoodooConnectionPacket();


     virtual DirectResult lock_output  ( int            length,
                                         void         **ret_ptr );

     virtual DirectResult unlock_output( bool           flush );


     virtual VoodooPacket *GetPacket( size_t        length );
     virtual void          PutPacket( VoodooPacket *packet,
                                      bool          flush );


private:
     static void *io_loop_main ( DirectThread  *thread,
                                 void          *arg );

     void        *io_loop      ();
};


#endif