Line data    Source code

       1             : 
       2             : /* Copyright (c) 2007-2013, Stefan Eilemann <eile@equalizergraphics.com>
       3             :  *                    2012, Daniel Nachbaur <danielnachbaur@gmail.com>
       4             :  *
       5             :  * This file is part of Collage <https://github.com/Eyescale/Collage>
       6             :  *
       7             :  * This library is free software; you can redistribute it and/or modify it under
       8             :  * the terms of the GNU Lesser General Public License version 2.1 as published
       9             :  * by the Free Software Foundation.
      10             :  *
      11             :  * This library is distributed in the hope that it will be useful, but WITHOUT
      12             :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
      13             :  * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
      14             :  * details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public License
      17             :  * along with this library; if not, write to the Free Software Foundation, Inc.,
      18             :  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      19             :  */
      20             : 
      21             : #ifndef CO_OBJECTDATAISTREAM_H
      22             : #define CO_OBJECTDATAISTREAM_H
      23             : 
      24             : #include <co/iCommand.h>        // member
      25             : #include <co/dataIStream.h>     // base class
      26             : #include <co/version.h>         // enum
      27             : #include <lunchbox/monitor.h>   // member
      28             : #include <lunchbox/thread.h>    // member
      29             : 
      30             : #include <deque>
      31             : 
      32             : namespace co
      33             : {
      34             :     /** The DataIStream for object data. */
      35             :     class ObjectDataIStream : public DataIStream
      36             :     {
      37             :     public:
      38             :         ObjectDataIStream();
      39             :         ObjectDataIStream( const ObjectDataIStream& rhs );
      40             :         virtual ~ObjectDataIStream();
      41             : 
      42             :         ObjectDataIStream& operator = ( const ObjectDataIStream& rhs );
      43             : 
      44             :         void addDataCommand( ObjectDataICommand command );
      45             :         size_t getDataSize() const;
      46             : 
      47         539 :         uint128_t getVersion() const override { return _version.get(); }
      48             :         uint128_t getPendingVersion() const;
      49             : 
      50          12 :         void waitReady() const { _version.waitNE( VERSION_INVALID ); }
      51      488057 :         bool isReady() const { return _version != VERSION_INVALID; }
      52             : 
      53         115 :         size_t nRemainingBuffers() const override { return _commands.size(); }
      54             : 
      55             :         void reset() override;
      56             : 
      57             :         bool hasInstanceData() const;
      58             : 
      59             :         CO_API NodePtr getRemoteNode() const override;
      60             :         CO_API LocalNodePtr getLocalNode() const override;
      61             : 
      62             :     protected:
      63             :         bool getNextBuffer( uint32_t& compressor, uint32_t& nChunks,
      64             :                             const void** chunkData, uint64_t& size ) override;
      65             : 
      66             :     private:
      67             :         typedef std::deque< ICommand > CommandDeque;
      68             : 
      69             :         /** All data commands for this istream. */
      70             :         CommandDeque _commands;
      71             : 
      72             :         ICommand _usedCommand; //!< Currently used buffer
      73             : 
      74             :         /** The object version associated with this input stream. */
      75             :         lunchbox::Monitor< uint128_t > _version;
      76             : 
      77      162732 :         void _setReady() { _version = getPendingVersion(); }
      78             :         void _reset();
      79             : 
      80      325464 :         LB_TS_VAR( _thread );
      81             :     };
      82             : }
      83             : #endif //CO_OBJECTDATAISTREAM_H