12062cb281
Change-Id: I6b5f73b2187009e95d4d666e03e5803f522cee06 Reviewed-on: https://gerrit.libreoffice.org/76584 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
114 lines
4.2 KiB
C++
114 lines
4.2 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_COMPHELPER_IDPROPARRAYHELPER_HXX
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#define INCLUDED_COMPHELPER_IDPROPARRAYHELPER_HXX
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#include <sal/config.h>
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#include <map>
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#include <osl/mutex.hxx>
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#include <osl/diagnose.h>
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#include <rtl/instance.hxx>
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#include <cppuhelper/propshlp.hxx>
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namespace comphelper
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{
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// OIdPropertyArrayUsageHelper
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template <typename TYPE> struct OIdPropertyArrayUsageHelperMutex
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: public rtl::Static< ::osl::Mutex, OIdPropertyArrayUsageHelperMutex<TYPE> > {};
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typedef std::map< sal_Int32, ::cppu::IPropertyArrayHelper* > OIdPropertyArrayMap;
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template <class TYPE>
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class OIdPropertyArrayUsageHelper
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{
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protected:
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static sal_Int32 s_nRefCount;
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static OIdPropertyArrayMap* s_pMap;
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public:
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OIdPropertyArrayUsageHelper();
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virtual ~OIdPropertyArrayUsageHelper()
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{
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::osl::MutexGuard aGuard(OIdPropertyArrayUsageHelperMutex<TYPE>::get());
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OSL_ENSURE(s_nRefCount > 0, "OIdPropertyArrayUsageHelper::~OIdPropertyArrayUsageHelper : suspicious call : have a refcount of 0 !");
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if (!--s_nRefCount)
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{
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// delete the element
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for (auto const& elem : *s_pMap)
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delete elem.second;
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delete s_pMap;
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s_pMap = nullptr;
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}
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}
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/** call this in the getInfoHelper method of your derived class. The method returns the array helper of the
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class, which is created if necessary.
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*/
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::cppu::IPropertyArrayHelper* getArrayHelper(sal_Int32 nId);
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protected:
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/** used to implement the creation of the array helper which is shared amongst all instances of the class.
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This method needs to be implemented in derived classes.
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<BR>
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The method gets called with Mutex acquired.
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@return a pointer to the newly created array helper. Must not be NULL.
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*/
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virtual ::cppu::IPropertyArrayHelper* createArrayHelper(sal_Int32 nId) const = 0;
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};
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template<class TYPE>
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sal_Int32 OIdPropertyArrayUsageHelper< TYPE >::s_nRefCount = 0;
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template<class TYPE>
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OIdPropertyArrayMap* OIdPropertyArrayUsageHelper< TYPE >::s_pMap = nullptr;
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template <class TYPE>
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OIdPropertyArrayUsageHelper<TYPE>::OIdPropertyArrayUsageHelper()
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{
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::osl::MutexGuard aGuard(OIdPropertyArrayUsageHelperMutex<TYPE>::get());
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// create the map if necessary
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if (s_pMap == nullptr)
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s_pMap = new OIdPropertyArrayMap;
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++s_nRefCount;
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}
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template <class TYPE>
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::cppu::IPropertyArrayHelper* OIdPropertyArrayUsageHelper<TYPE>::getArrayHelper(sal_Int32 nId)
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{
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OSL_ENSURE(s_nRefCount, "OIdPropertyArrayUsageHelper::getArrayHelper : suspicious call : have a refcount of 0 !");
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::osl::MutexGuard aGuard(OIdPropertyArrayUsageHelperMutex<TYPE>::get());
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// do we have the array already?
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auto& rEntry = (*s_pMap)[nId];
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if (!rEntry)
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{
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rEntry = createArrayHelper(nId);
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OSL_ENSURE((*s_pMap)[nId], "OIdPropertyArrayUsageHelper::getArrayHelper : createArrayHelper returned nonsense !");
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}
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return (*s_pMap)[nId];
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}
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}
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#endif // INCLUDED_COMPHELPER_IDPROPARRAYHELPER_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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