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