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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/*
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2014 ownCloud GmbH
* SPDX-FileCopyrightText: 2000-2013 Liferay, Inc. All rights reserved
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include <windows.h>
#include <new>
#include "NCOverlayFactory.h"
#include "NCOverlay.h"
extern long dllReferenceCount;
NCOverlayFactory::NCOverlayFactory(int state)
: _referenceCount(1), _state(state)
{
InterlockedIncrement(&dllReferenceCount);
}
NCOverlayFactory::~NCOverlayFactory()
{
InterlockedDecrement(&dllReferenceCount);
}
IFACEMETHODIMP NCOverlayFactory::QueryInterface(REFIID riid, void **ppv)
{
HRESULT hResult = S_OK;
if (IsEqualIID(IID_IUnknown, riid) ||
IsEqualIID(IID_IClassFactory, riid))
{
*ppv = static_cast<IUnknown *>(this);
AddRef();
}
else
{
hResult = E_NOINTERFACE;
*ppv = nullptr;
}
return hResult;
}
IFACEMETHODIMP_(ULONG) NCOverlayFactory::AddRef()
{
return InterlockedIncrement(&_referenceCount);
}
IFACEMETHODIMP_(ULONG) NCOverlayFactory::Release()
{
ULONG cRef = InterlockedDecrement(&_referenceCount);
if (0 == cRef)
{
delete this;
}
return cRef;
}
IFACEMETHODIMP NCOverlayFactory::CreateInstance(
IUnknown *pUnkOuter, REFIID riid, void **ppv)
{
HRESULT hResult = CLASS_E_NOAGGREGATION;
if (pUnkOuter) { return hResult; }
hResult = E_OUTOFMEMORY;
auto lrOverlay = new (std::nothrow) NCOverlay(_state);
if (!lrOverlay) { return hResult; }
hResult = lrOverlay->QueryInterface(riid, ppv);
lrOverlay->Release();
return hResult;
}
IFACEMETHODIMP NCOverlayFactory::LockServer(BOOL fLock)
{
if (fLock) {
InterlockedIncrement(&dllReferenceCount);
} else {
InterlockedDecrement(&dllReferenceCount);
}
return S_OK;
}
|
