e6f2736be8
Change-Id: I19bad304c5c8099fd24be77ec7251e837b513c81 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/125117 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
106 lines
3.9 KiB
C++
106 lines
3.9 KiB
C++
/* -*- 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 <sal/config.h>
|
|
|
|
#include <mutex>
|
|
#include <cppuhelper/propshlp.hxx>
|
|
#include <cassert>
|
|
#include <unordered_map>
|
|
|
|
namespace comphelper
|
|
{
|
|
|
|
typedef std::unordered_map< sal_Int32, ::cppu::IPropertyArrayHelper* > OIdPropertyArrayMap;
|
|
template <class TYPE>
|
|
class OIdPropertyArrayUsageHelper
|
|
{
|
|
public:
|
|
OIdPropertyArrayUsageHelper();
|
|
virtual ~OIdPropertyArrayUsageHelper()
|
|
{
|
|
std::unique_lock aGuard(theMutex());
|
|
assert(s_nRefCount > 0 && "OIdPropertyArrayUsageHelper::~OIdPropertyArrayUsageHelper : suspicious call : have a refcount of 0 !");
|
|
if (!--s_nRefCount)
|
|
{
|
|
// delete the element
|
|
for (auto const& elem : *s_pMap)
|
|
delete elem.second;
|
|
delete s_pMap;
|
|
s_pMap = nullptr;
|
|
}
|
|
}
|
|
|
|
/** call this in the getInfoHelper method of your derived class. The method returns the array helper of the
|
|
class, which is created if necessary.
|
|
*/
|
|
::cppu::IPropertyArrayHelper* getArrayHelper(sal_Int32 nId);
|
|
|
|
protected:
|
|
/** used to implement the creation of the array helper which is shared amongst all instances of the class.
|
|
This method needs to be implemented in derived classes.
|
|
<BR>
|
|
The method gets called with Mutex acquired.
|
|
@return a pointer to the newly created array helper. Must not be NULL.
|
|
*/
|
|
virtual ::cppu::IPropertyArrayHelper* createArrayHelper(sal_Int32 nId) const = 0;
|
|
private:
|
|
static sal_Int32 s_nRefCount;
|
|
static OIdPropertyArrayMap* s_pMap;
|
|
static std::mutex& theMutex()
|
|
{
|
|
static std::mutex SINGLETON;
|
|
return SINGLETON;
|
|
}
|
|
};
|
|
|
|
template<class TYPE>
|
|
sal_Int32 OIdPropertyArrayUsageHelper< TYPE >::s_nRefCount = 0;
|
|
|
|
template<class TYPE>
|
|
OIdPropertyArrayMap* OIdPropertyArrayUsageHelper< TYPE >::s_pMap = nullptr;
|
|
|
|
template <class TYPE>
|
|
OIdPropertyArrayUsageHelper<TYPE>::OIdPropertyArrayUsageHelper()
|
|
{
|
|
std::unique_lock aGuard(theMutex());
|
|
// create the map if necessary
|
|
if (!s_pMap)
|
|
s_pMap = new OIdPropertyArrayMap;
|
|
++s_nRefCount;
|
|
}
|
|
|
|
template <class TYPE>
|
|
::cppu::IPropertyArrayHelper* OIdPropertyArrayUsageHelper<TYPE>::getArrayHelper(sal_Int32 nId)
|
|
{
|
|
assert(s_nRefCount && "OIdPropertyArrayUsageHelper::getArrayHelper : suspicious call : have a refcount of 0 !");
|
|
std::unique_lock aGuard(theMutex());
|
|
// do we have the array already?
|
|
auto& rEntry = (*s_pMap)[nId];
|
|
if (!rEntry)
|
|
{
|
|
rEntry = createArrayHelper(nId);
|
|
assert(rEntry && "OIdPropertyArrayUsageHelper::getArrayHelper : createArrayHelper returned nonsense !");
|
|
}
|
|
return (*s_pMap)[nId];
|
|
}
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|