upgrade_mutex.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
/*
 * Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration.
 */
#ifndef ATHCONTAINERS_UPGRADE_MUTEX_H
#define ATHCONTAINERS_UPGRADE_MUTEX_H
 
 
#ifdef ATHCONTAINERS_NO_THREADS
 
 
namespace AthContainers_detail {
 
 
class upgrade_mutex
{
public:
  void lock() {}
  void unlock() {}
  void lock_shared() {}
  void unlock_shared() {}
  void lock_upgrade() {}
  void unlock_upgrade() {}
  void unlock_upgrade_and_lock() {}
private:
  // Real upgrade_mutex is not assignable.  Need this for proper
  // dictionary generation.
  upgrade_mutex& operator= (const upgrade_mutex&);
};
 
 
} // AthContainers_detail
 
 
#else  // not ATHCONTAINERS_NO_THREADS
 
 
#include "boost/thread/shared_mutex.hpp"
 
 
namespace AthContainers_detail {
 
 
using boost::upgrade_mutex;
 
 
} // namespace AthContainers_detail
 
 
#endif // not ATHCONTAINERS_NO_THREADS
 
 
#endif // not ATHCONTAINERS_UPGRADE_MUTEX_H