DBLock.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
/*
 * Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration.
 */
#ifndef DBLOCK_DBLOCK_H
#define DBLOCK_DBLOCK_H
 
 
#include <mutex>
#include <memory>
 
 
namespace Athena {
 
 
class DBLock
{
public:
  DBLock();
  DBLock(const DBLock&) = default;
  DBLock(DBLock&&) = default;
  DBLock& operator=(const DBLock&) = default;
  DBLock& operator=(DBLock&&) = default;
  ~DBLock();
 
 
private:
  static std::recursive_mutex m_mutex;
 
  using lock_t = std::unique_lock<std::recursive_mutex>;
  std::shared_ptr<lock_t> m_lockPtr;
};
 
 
} // namespace Athena
 
 
#endif // not DBLOCK_DBLOCK_H