46 lines
1.1 KiB
C++
46 lines
1.1 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/.
|
|
*/
|
|
|
|
#ifndef INCLUDED_SHELL_INC_SPSUPP_COMREFCOUNTED_HPP
|
|
#define INCLUDED_SHELL_INC_SPSUPP_COMREFCOUNTED_HPP
|
|
|
|
#include <objbase.h>
|
|
#include <assert.h>
|
|
|
|
template <class... Interfaces>
|
|
class COMRefCounted : public Interfaces...
|
|
{
|
|
public:
|
|
virtual ~COMRefCounted() {}
|
|
|
|
// IUnknown methods
|
|
|
|
ULONG STDMETHODCALLTYPE AddRef() override
|
|
{
|
|
return static_cast<ULONG>(::InterlockedIncrement(&m_nRef));
|
|
}
|
|
|
|
ULONG STDMETHODCALLTYPE Release() override
|
|
{
|
|
assert(m_nRef > 0);
|
|
if (::InterlockedDecrement(&m_nRef) == 0)
|
|
{
|
|
delete this;
|
|
return 0;
|
|
}
|
|
return static_cast<ULONG>(m_nRef);
|
|
}
|
|
|
|
private:
|
|
LONG m_nRef = 1; // Created referenced
|
|
};
|
|
|
|
#endif
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|