116 lines
2.6 KiB
C++
116 lines
2.6 KiB
C++
/*
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* This file is a part of morm
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2021, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef headerfile_morm_src_baseobjectwrapper
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#define headerfile_morm_src_baseobjectwrapper
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namespace morm
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{
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class BaseObjectWrapper
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{
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public:
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BaseObjectWrapper()
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{
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auto_remove = true;
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reference_counter = 1;
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}
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virtual ~BaseObjectWrapper()
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{
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}
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virtual bool should_be_auto_removed()
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{
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return auto_remove;
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}
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virtual void increment_reference_counter()
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{
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reference_counter += 1;
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}
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virtual void decrement_reference_counter()
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{
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if( reference_counter > 0 )
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reference_counter -= 1;
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}
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virtual size_t get_reference_counter()
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{
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return reference_counter;
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}
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protected:
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bool auto_remove;
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size_t reference_counter;
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private:
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/*
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* don't copy these wrappers
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*/
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BaseObjectWrapper(const BaseObjectWrapper & wrapper)
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{
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operator=(wrapper);
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}
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BaseObjectWrapper(BaseObjectWrapper && wrapper)
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{
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auto_remove = wrapper.auto_remove;
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reference_counter = wrapper.reference_counter;
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wrapper.auto_remove = false;
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wrapper.reference_counter = 0;
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}
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BaseObjectWrapper & operator=(const BaseObjectWrapper & wrapper)
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{
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auto_remove = wrapper.auto_remove;
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reference_counter = 1;
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return *this;
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}
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};
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}
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#endif
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