blob: 7075e300042ca3a2def2afa10b8da8d79e492b2f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/* -*- 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_COMPHELPER_MAKE_SHARED_FROM_UNO_HXX
#define INCLUDED_COMPHELPER_MAKE_SHARED_FROM_UNO_HXX
#include <memory>
namespace comphelper
{
/// @internal
namespace detail
{
/// @internal
template <typename T> struct ReleaseFunc
{
void operator()(T* p) const { p->release(); }
};
} // namespace detail
/** Makes a std::shared_ptr from a ref-counted UNO object pointer.
This makes sense if the object is used via UNO (implementing some X
interface) and also internally using its implementation class, e.g.
<pre>
std::shared_ptr<MyUnoImpl> const ptr(
comphelper::make_shared_from_UNO( new MyUnoImpl ) );
...
xUno->callingUno( uno::Reference<XSomeInterface>( ptr.get() ) );
...
takeSharedPtr( ptr );
...
</pre>
@attention The shared_ptr operates on a separate reference counter, so
weak pointers (std::weak_ptr) are invalidated when the last
shared_ptr is destroyed, although the UNO object may still be
alive.
@param p object pointer
@return shared_ptr to object
*/
template <typename T> inline std::shared_ptr<T> make_shared_from_UNO(T* p)
{
p->acquire();
return std::shared_ptr<T>(p, detail::ReleaseFunc<T>());
}
} // namespace comphelper
#endif // ! defined(INCLUDED_COMPHELPER_MAKE_SHARED_FROM_UNO_HXX)
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
