InertMessageSvc.h

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/***********************************************************************************\
* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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* In applying this licence, CERN does not waive the privileges and immunities       *
* granted to it by virtue of its status as an Intergovernmental Organization        *
* or submit itself to any jurisdiction.                                             *
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#ifndef MESSAGESVC_INERTMESSAGESVC_H
#define MESSAGESVC_INERTMESSAGESVC_H 1
// Include files
// FW
#include "MessageSvc.h"
// C++
#include <functional>
#include <memory>
#include <thread>
// External libs
#include "tbb/concurrent_queue.h"

class InertMessageSvc : public MessageSvc {
public:
  using MessageSvc::MessageSvc;

  StatusCode initialize() override;

  StatusCode finalize() override;

  using MessageSvc::reportMessage;

  void reportMessage( const Message& msg ) override;

  void reportMessage( const Message& msg, int outputLevel ) override;

  void reportMessage( const StatusCode& code, const std::string& source = "" ) override;

private:
  void m_activate();
  void m_deactivate();
  bool m_isActive = false;

  tbb::concurrent_bounded_queue<std::function<void()>> m_messageActionsQueue;

  std::thread m_thread;
};

#endif // MESSAGESVC_INERTMESSAGESVC_H