thread_specific_ptr.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_THREAD_SPECIFIC_PTR_H
#define ATHCONTAINERS_THREAD_SPECIFIC_PTR_H
 
 
#ifdef ATHCONTAINERS_NO_THREADS
 
 
namespace AthContainers_detail {
 

template <class T>
class thread_specific_ptr
{
public:
  thread_specific_ptr() : m_ptr(0) {}
  ~thread_specific_ptr() { delete m_ptr; }
  thread_specific_ptr (const thread_specific_ptr&) = delete;
  thread_specific_ptr& operator= (const thread_specific_ptr&) = delete;
  T* get() { return m_ptr; }
  T* operator->() { return m_ptr; }
  T& operator*() { return *m_ptr; }
  const T* get() const { return m_ptr; }
  const T* operator->() const { return m_ptr; }
  const T& operator*() const { return *m_ptr; }
  void reset (T* new_value=0) { delete m_ptr; m_ptr = new_value; }
  T* release() { T* ret = m_ptr; m_ptr = 0; return ret; }
 
private:
  T* m_ptr;
};
 
 
} // namespace AthContainers_detail
 
 
#else  // not ATHCONTAINERS_NO_THREADS
 
 
#include "boost/thread/tss.hpp"
 
 
namespace AthContainers_detail {
 
 
using boost::thread_specific_ptr;
 
 
} // namespace AthContainers_detail
 
 
 
#endif // not ATHCONTAINERS_NO_THREADS
 
 
#endif // not ATHCONTAINERS_THREAD_SPECIFIC_PTR_H