engine.h

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#pragma once
#include <hpda/engine/functor.h>
#include <unordered_map>
#include <unordered_set>
#include <vector>
 
namespace hpda {
class engine {
public:
  void add_functor(functor *f);
 
  void remove_functor(functor * f);
 
  void run();
 
protected:
 
  void build_graph();
 
  std::vector<functor *> find_outputs() const;
 
  bool contain_same_successor(functor *f1, functor *f2, functor *succ) const;
 
  bool functor_has_input(functor *f) const;
 
  bool is_output(functor *f) const;
 
protected:
  std::vector<functor *> m_functors;
 
  std::unordered_map<functor *, std::unordered_set<functor *>> m_successors;
  std::unordered_map<functor *, std::unordered_set<functor *>> m_predecessors;
  std::unordered_set<functor *> m_reach_ends;
};
} // namespace ypc