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Diffstat (limited to 'sd/inc/helper/simplereferencecomponent.hxx')
-rw-r--r-- | sd/inc/helper/simplereferencecomponent.hxx | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/sd/inc/helper/simplereferencecomponent.hxx b/sd/inc/helper/simplereferencecomponent.hxx new file mode 100644 index 0000000000..89e43639e4 --- /dev/null +++ b/sd/inc/helper/simplereferencecomponent.hxx @@ -0,0 +1,63 @@ +/* -*- 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 . + */ + +#pragma once + +#include <osl/interlck.h> + +namespace sd +{ +/** A simple base implementation for reference-counted components. + acts like sal::SimpleReferenceObject but calls the virtual disposing() + methods before the ref count switches from 1 to zero. + */ +class SimpleReferenceComponent +{ +public: + SimpleReferenceComponent(); + + /** @ATTENTION + The results are undefined if, for any individual instance of + SimpleReferenceComponent, the total number of calls to acquire() exceeds + the total number of calls to release() by a platform dependent amount + (which, hopefully, is quite large). + */ + void acquire(); + void release(); + + void Dispose(); + + bool isDisposed() const { return mbDisposed; } + +protected: + virtual void disposing(); + + virtual ~SimpleReferenceComponent(); + +private: + oslInterlockedCount m_nCount; + + SimpleReferenceComponent(SimpleReferenceComponent const&) = delete; + void operator=(SimpleReferenceComponent const&) = delete; + + bool mbDisposed; +}; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |