TFileAccessTracer.h

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// Dear emacs, this is -*- c++ -*-
//
// Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
//
#ifndef XAODROOTACCESS_TOOLS_TFILEACCESSTRACER_H
#define XAODROOTACCESS_TOOLS_TFILEACCESSTRACER_H
 
// System include(s):
#include <set>
#include <string>
#include <mutex>
 
// ROOT include(s):
#include <TString.h>
#include <TInetAddress.h>
 
// Forward declaration(s):
class TFile;
 
namespace xAOD {

   class ReadStats;

   class TFileAccessTracer {
 
   public:
      TFileAccessTracer();
      ~TFileAccessTracer();

      void add( const ::TFile& file );

      const std::string& serverAddress() const;
      void setServerAddress( const std::string& addr );

      ::Double_t monitoredFraction() const;
      void setMonitoredFraction( ::Double_t value );

      static void enableDataSubmission( ::Bool_t value );
 
   private:
      class AccessedFile {
      public:
         ::TString filePath;
         ::TString fileName;
         bool operator< ( const AccessedFile& rhs ) const;
         ::TString fullFilePath() const;
      };

      std::set< AccessedFile > m_accessedFiles;

      std::string m_serverAddress;
      ::TInetAddress m_serverInetAddress;

      ::Double_t m_monitoredFraction;

      ReadStats* m_readStats;

      mutable std::mutex m_mutex;
 
   }; // class TFileAccessTracer
 
} // namespace xAOD
 
#endif // XAODROOTACCESS_TOOLS_TFILEACCESSTRACER_H