72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_VCL_Reference_HXX
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#define INCLUDED_VCL_Reference_HXX
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#include <vcl/dllapi.h>
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#include <osl/interlck.h>
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class VclBuilder;
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class VCL_DLLPUBLIC VclReferenceBase
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{
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mutable oslInterlockedCount mnRefCnt;
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template<typename T> friend class VclPtr;
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friend class ::VclBuilder; // needed by ::delete_by_window(vcl::Window *pWindow)
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public:
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void acquire() const
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{
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osl_atomic_increment(&mnRefCnt);
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}
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void release() const
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{
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if (osl_atomic_decrement(&mnRefCnt) == 0)
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delete this;
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}
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#ifdef DBG_UTIL
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#ifndef _WIN32
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sal_Int32 getRefCount() const { return mnRefCnt; }
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#endif
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#endif
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private:
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VclReferenceBase(const VclReferenceBase&) = delete;
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VclReferenceBase& operator=(const VclReferenceBase&) = delete;
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bool mbDisposed : 1;
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protected:
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VclReferenceBase();
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virtual ~VclReferenceBase();
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// This is only supposed to be called from disposeOnce
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virtual void dispose();
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public:
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// This is normally supposed to be called from VclPtr::disposeAndClear
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void disposeOnce();
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bool isDisposed() const { return mbDisposed; }
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};
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#endif
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