IOStats.h

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// Dear emacs, this is -*- c++ -*-
 
/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef XAODCORE_TOOLS_IOSTATS_H
#define XAODCORE_TOOLS_IOSTATS_H
 
// System include(s):
#include <map>
#include <thread>
#include <mutex>
 
// EDM include(s):
#include "AthContainers/tools/threading.h"
#include "AthContainers/tools/thread_specific_ptr.h"
 
// Local include(s):
#include "xAODCore/tools/ReadStats.h"
 
namespace xAOD {
 
   // Forward declaration(s):
   class ReadStats;

   class IOStats {
 
   public:
      static IOStats& instance();

      ReadStats& stats();

      ReadStats merged() const;
 
   private:
      IOStats();
      IOStats( const IOStats& ) = delete;

      std::map< std::thread::id, ReadStats > m_stats;

      AthContainers_detail::thread_specific_ptr< ReadStats > m_ptr;

      mutable std::mutex m_mutex;
 
   }; // class IOStats
 
} // namespace xAOD
 
#endif // XAODCORE_TOOLS_IOSTATS_H