office-gobmx/include/sot/object.hxx
Mike Kaganski 1ac5353bbb Use weak reference to SfxObjectShell in SfxEventHint to avoid use-after-free
The events may be processed after the shell has been destroyed. This is
happening reliably after commit e2bfc34d14
(Reimplement OleComponentNative_Impl to use IGlobalInterfaceTable,
2024-03-11) when controlling LibreOffice from external Java scripts; but
obviously, it could happen before as well.

Now SotObject inherits from cppu::OWeakObject, instead of SvRefBase.

Change-Id: I73a3531499a3068c801c98f40de39bdf8ad90b2b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/164458
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
2024-03-11 04:43:28 +01:00

55 lines
1.7 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 .
*/
#ifndef INCLUDED_SOT_OBJECT_HXX
#define INCLUDED_SOT_OBJECT_HXX
#include <sal/config.h>
#include <cppuhelper/weak.hxx>
#include <rtl/ref.hxx>
#include <sot/sotdllapi.h>
class SOT_DLLPUBLIC SotObject : public cppu::OWeakObject
{
sal_uInt16 nOwnerLockCount;
bool bInClose; // TRUE, in DoClose
protected:
virtual ~SotObject() override;
virtual bool Close();
public:
SotObject();
sal_uInt16 GetOwnerLockCount() const { return nOwnerLockCount; }
void OwnerLock(bool bLock);
bool DoClose();
bool IsInClose() const { return bInClose; }
oslInterlockedCount GetRefCount() const { return m_refCount; }
private:
SotObject& operator=(const SotObject&) = delete;
SotObject(const SotObject&) = delete;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */