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SmartPtrBase.hpp

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/*******************************************************************************
 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
 * Kopernikusstr. 16, D-52074 Aachen, Germany
 * phone: ++49-241-80-27910,
 * fax: ++49-241-80-22242
 * email: info@openwns.org
 * www: http://www.openwns.org
 * _____________________________________________________________________________
 *
 * openWNS is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
 *
 * openWNS is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 ******************************************************************************/

#ifndef WNS_SMARTPTRBASE_HPP
#define WNS_SMARTPTRBASE_HPP

#include <WNS/TypeInfo.hpp>
#include <WNS/Backtrace.hpp>

#include <list>
#include <stdint.h>
#include <iostream>

namespace wns {
    class SmartPtrBase
    {
        typedef std::list<SmartPtrBase*> SmartPtrBaseContainer;
    public:
        typedef long long int Id;

        SmartPtrBase() :
            globalId(++SmartPtrBase::getCounter())
        {
            SmartPtrBase::getAllPointers().push_back(this);
                        wns::Backtrace bt;
                        bt.snapshot();
                        this->backtrace = bt.toString();
        }

        virtual
        ~SmartPtrBase()
        {
            SmartPtrBase::getAllPointers().remove(this);
        }

        static void
        printAllExistingPointers()
        {
            std::cout << "Currently existing SmartPtrs:" << "\n";
            for(SmartPtrBaseContainer::const_iterator itr = SmartPtrBase::getAllPointers().begin();
                itr != SmartPtrBase::getAllPointers().end();
                ++itr) {
                std::cout << "Pointer type: " << (*itr)->getTypeInfo()
                      << " id: " << (*itr)->getId()
                      << " global id: " << (*itr)->globalId << "\n"
                                          << (*itr)->getBacktrace() << std::endl;
            }
        }

                std::string
                getBacktrace()
                {
                    return this->backtrace;
                }
    private:
        virtual wns::TypeInfo
        getTypeInfo() const = 0;

        virtual Id
        getId() const = 0;

        static Id&
        getCounter()
        {
            static Id counter = 0;
            return counter;
        }

        static SmartPtrBaseContainer&
        getAllPointers()
        {
            static SmartPtrBaseContainer allPointers;
            return allPointers;
        }

        Id globalId;

                std::string backtrace;
    };
} // wns

#endif // NOT defined WNS_SMARTPTRBASE_HPP

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