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Messenger.hpp

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  • Messenger.hpp 951 B
    #ifndef MESSENGER_HPP
    #define MESSENGER_HPP
    
    #include <PastisMacros.hpp>
    #include <PastisAssert.hpp>
    
    class Messenger
    {
     private:
      static Messenger* m_instance;
      Messenger(int& argc, char* argv[]);
    
      int m_rank{0};
      int m_size{1};
     public:
      static void create(int& argc, char* argv[]);
      static void destroy();
    
      PASTIS_INLINE
      static Messenger& getInstance()
      {
        Assert(m_instance != nullptr);
        return *m_instance;
      }
    
      PASTIS_INLINE
      const int& rank() const
      {
        return m_rank;
      }
    
      PASTIS_INLINE
      const int& size() const
      {
        return m_size;
      }
    
      Messenger(const Messenger&) = delete;
      ~Messenger();
    };
    
    PASTIS_INLINE
    const Messenger& messenger()
    {
      return Messenger::getInstance();
    }
    
    [[deprecated("use better name")]]
    PASTIS_INLINE
    const int& commRank()
    {
      return messenger().rank();
    }
    
    [[deprecated("use better name")]]
    PASTIS_INLINE
    const int& commSize()
    {
      return messenger().size();
    }
    
    
    #endif // MESSENGER_HPP