dynamic_task_graph_node.h

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// This file is part of the Peano project. For conditions of distribution and
// use, please see the copyright notice at www.peano-framework.org. It
// supplements something to oneTBB which has been removed and which I need:
// dynamic tasking. Therefore I add it to the tbb namespace rather than
// Peano's tarch.
#pragma once
 
 
#include <functional>
#include <set>
#include <memory>
#include <string>
 
 
namespace tbb {
  class dynamic_task_graph_node;
  class dynamic_task_graph_spawned_node;
  class dynamic_task_graph;
}
 
namespace tbb {
  class dynamic_task_graph_node {
    public:
      friend class dynamic_task_graph;
      friend class dynamic_task_graph_spawned_node;
 
      dynamic_task_graph_node( std::function<void()> functor );
 
      dynamic_task_graph_node( std::function<void()> functor, const std::string& task_description );
 
      dynamic_task_graph_node( const dynamic_task_graph_node&  node );
 
      void add_dependency( const dynamic_task_graph_node& node );
 
      void add_dependencies( const std::set<dynamic_task_graph_node>& nodes );
 
      bool is_submitted() const;
 
      std::string to_string() const;
 
    private:
      std::function<void()>                              _functor;
 
      std::shared_ptr<dynamic_task_graph_spawned_node>   _spawned_task;
 
      std::vector< std::shared_ptr<dynamic_task_graph_spawned_node> >  _in_dependency;
 
      #if TBB_USE_DEBUG>0
      std::string  _task_description;
      #endif
  };
}