singleton.hh

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//
// Copyright (c) 2020 Fraunhofer Institute for Applied Information Technology (FIT)
//                    Network Research Group (NET)
//                    Schloss Birlinghoven, 53754 Sankt Augustin, GERMANY
//                    Contact: support@wiback.org
//
// This file is part of the SENF code tree.
// It is licensed under the 3-clause BSD License (aka New BSD License).
// See LICENSE.txt in the top level directory for details or visit
// https://opensource.org/licenses/BSD-3-Clause
//


#ifndef HH_SENF_Utils_singleton_
#define HH_SENF_Utils_singleton_ 1

// Custom includes
#include <boost/noncopyable.hpp>

//#include "singleton.mpp"
//-/////////////////////////////////////////////////////////////////////////////////////////////////

namespace senf {

    template <class Self>
    class singleton
        : boost::noncopyable
    {
    protected:
        singleton();
        ~singleton();

        static Self & instance();       
        static bool alive();            

    private:
        struct force_creation
        {
            force_creation();
            void nop() const;
        };

        static force_creation creator_;
        static bool alive_;
    };

}

//-/////////////////////////////////////////////////////////////////////////////////////////////////
//#include "singleton.cci"
//#include "singleton.ct"
#include "singleton.cti"
#endif


// Local Variables:
// mode: c++
// fill-column: 100
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: