SingletonLifetimePolicies.h

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// this is for emacs file handling -*- mode: c++; indent-tabs-mode: nil -*-

// -- BEGIN LICENSE BLOCK ----------------------------------------------
// This file is part of FZIs ic_workspace.
//
// This program is free software licensed under the LGPL
// (GNU LESSER GENERAL PUBLIC LICENSE Version 3).
// You can find a copy of this license in LICENSE folder in the top
// directory of the source code.
//
// © Copyright 2016 FZI Forschungszentrum Informatik, Karlsruhe, Germany
//
// -- END LICENSE BLOCK ------------------------------------------------

//----------------------------------------------------------------------
//----------------------------------------------------------------------
#ifndef ICL_CORE_SINGLETON_LIFETIME_POLICIES_H_INCLUDED
#define ICL_CORE_SINGLETON_LIFETIME_POLICIES_H_INCLUDED

#include <stdlib.h>
#include <stdexcept>

namespace icl_core {

typedef void (*DestructionFuncPtr)();

template
<class T>
class SLPDefaultLifetime
{
public:
  static void scheduleDestruction(DestructionFuncPtr f)
  {
    atexit(f);
  }

  static void onDeadReference()
  {
    throw std::logic_error("attempted to access a singleton instance after its destruction");
  }
};

template
<class T>
class SLPNoDestroy
{
public:
  static void scheduleDestruction(DestructionFuncPtr)
  {
  }

  static void onDeadReference()
  {
  }
};

}

#endif