Line data    Source code

       1             : 
       2             : /* Copyright (c) 2005-2012, 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             : #include "dispatcher.h"
      22             : 
      23             : #include "commandQueue.h"
      24             : #include "iCommand.h"
      25             : #include "node.h"
      26             : 
      27             : #include <lunchbox/log.h>
      28             : 
      29             : namespace co
      30             : {
      31             : namespace detail
      32             : {
      33         676 : class Dispatcher
      34             : {
      35             : public:
      36             :     /** The command handler function table. */
      37             :     std::vector< co::Dispatcher::Func > fTable;
      38             : 
      39             :     /** Defines a queue to which commands are dispatched from the recv. */
      40             :     std::vector< co::CommandQueue* > qTable;
      41             : };
      42             : }
      43             : 
      44         340 : Dispatcher::Dispatcher()
      45         340 :         : _impl( new detail::Dispatcher )
      46         340 : {}
      47             : 
      48           0 : Dispatcher::Dispatcher( const Dispatcher& )
      49           0 :         : _impl( new detail::Dispatcher )
      50           0 : {}
      51             : 
      52         672 : Dispatcher::~Dispatcher()
      53             : {
      54         336 :     delete _impl;
      55         336 : }
      56             : 
      57             : //===========================================================================
      58             : // command handling
      59             : //===========================================================================
      60        2708 : void Dispatcher::_registerCommand( const uint32_t command, const Func& func,
      61             :                                    CommandQueue* destinationQueue )
      62             : {
      63        2708 :     LBASSERT( _impl->fTable.size() == _impl->qTable.size( ));
      64             : 
      65        2708 :     if( _impl->fTable.size() <= command )
      66             :     {
      67        4701 :         while( _impl->fTable.size() < command )
      68             :         {
      69        1658 :             _impl->fTable.push_back( Func( this, &Dispatcher::_cmdUnknown ));
      70        1658 :             _impl->qTable.push_back( 0 );
      71             :         }
      72             : 
      73        1385 :         _impl->fTable.push_back( func );
      74        1385 :         _impl->qTable.push_back( destinationQueue );
      75             : 
      76        1385 :         LBASSERT( _impl->fTable.size() == command + 1 );
      77             :     }
      78             :     else
      79             :     {
      80        1323 :         _impl->fTable[command] = func;
      81        1323 :         _impl->qTable[command] = destinationQueue;
      82             :     }
      83        2708 : }
      84             : 
      85             : 
      86      665904 : bool Dispatcher::dispatchCommand( ICommand& command )
      87             : {
      88      665904 :     LBASSERT( command.isValid( ));
      89             : 
      90     1331808 :     LBVERB << "dispatch " << command << " on " << lunchbox::className( this )
      91     1997712 :            << std::endl;
      92             : 
      93      665904 :     const uint32_t which = command.getCommand();
      94             : #ifndef NDEBUG
      95      665904 :     if( which >= _impl->qTable.size( ))
      96             :     {
      97           0 :         LBABORT( "ICommand " << command
      98             :                  << " higher than number of registered command handlers ("
      99             :                  << _impl->qTable.size() << ") for object of type "
     100             :                  << lunchbox::className( this ) << std::endl );
     101           0 :         return false;
     102             :     }
     103             : #endif
     104             : 
     105      665904 :     CommandQueue* queue = _impl->qTable[ which ];
     106      665904 :     if( queue )
     107             :     {
     108      645282 :         command.setDispatchFunction( _impl->fTable[ which ] );
     109      645282 :         queue->push( command );
     110      645283 :         return true;
     111             :     }
     112             :     // else
     113             : 
     114       20622 :     LBCHECK( _impl->fTable[ which ]( command ));
     115       20622 :     return true;
     116             : }
     117             : 
     118           0 : bool Dispatcher::_cmdUnknown( ICommand& command )
     119             : {
     120           0 :     LBERROR << "Unknown " << command << " for " << lunchbox::className( this )
     121           0 :             << lunchbox::backtrace << std::endl;
     122           0 :     LBUNREACHABLE;
     123           0 :     return false;
     124             : }
     125             : 
     126          66 : }