Line data    Source code

       1             : 
       2             : /* Copyright (c) 2007-2016, Stefan Eilemann <eile@equalizergraphics.com>
       3             :  *                          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/dataIStream.h>   // base class
      25             : #include <co/iCommand.h>      // member
      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         533 :     uint128_t getVersion() const override { return _version.get(); }
      48             :     uint128_t getPendingVersion() const;
      49             : 
      50           6 :     void waitReady() const { _version.waitNE(VERSION_INVALID); }
      51      557206 :     bool isReady() const { return _version != VERSION_INVALID; }
      52         116 :     size_t nRemainingBuffers() const override { return _commands.size(); }
      53             :     void reset() override;
      54             : 
      55             :     bool hasInstanceData() const;
      56             : 
      57             :     CO_API NodePtr getRemoteNode() const override;
      58             :     CO_API LocalNodePtr getLocalNode() const override;
      59             : 
      60             : protected:
      61             :     bool getNextBuffer(CompressorInfo& compressor, uint32_t& nChunks,
      62             :                        const void*& chunkData, uint64_t& size) override;
      63             : 
      64             : private:
      65             :     typedef std::deque<ICommand> CommandDeque;
      66             : 
      67             :     /** All data commands for this istream. */
      68             :     CommandDeque _commands;
      69             : 
      70             :     ICommand _usedCommand; //!< Currently used buffer
      71             : 
      72             :     /** The object version associated with this input stream. */
      73             :     lunchbox::Monitor<uint128_t> _version;
      74             : 
      75      185779 :     void _setReady() { _version = getPendingVersion(); }
      76             :     void _reset();
      77             : 
      78      371558 :     LB_TS_VAR(_thread);
      79             : };
      80             : }
      81             : #endif // CO_OBJECTDATAISTREAM_H