1 /*
2 * ClassFactory implementation for comcat.dll
3 *
4 * Copyright (C) 2002 John K. Hohm
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "comcat_private.h"
22
23 #include "wine/debug.h"
24
25 WINE_DEFAULT_DEBUG_CHANNEL(ole);
26
27 static ULONG WINAPI COMCAT_IClassFactory_AddRef(LPCLASSFACTORY iface);
28
29 /**********************************************************************
30 * COMCAT_IClassFactory_QueryInterface (also IUnknown)
31 */
32 static HRESULT WINAPI COMCAT_IClassFactory_QueryInterface(
33 LPCLASSFACTORY iface,
34 REFIID riid,
35 LPVOID *ppvObj)
36 {
37 ClassFactoryImpl *This = (ClassFactoryImpl *)iface;
38 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
39
40 if (This == NULL || ppvObj == NULL) return E_POINTER;
41
42 if (IsEqualGUID(riid, &IID_IUnknown) ||
43 IsEqualGUID(riid, &IID_IClassFactory))
44 {
45 *ppvObj = (LPVOID)iface;
46 COMCAT_IClassFactory_AddRef(iface);
47 return S_OK;
48 }
49
50 return E_NOINTERFACE;
51 }
52
53 /**********************************************************************
54 * COMCAT_IClassFactory_AddRef (also IUnknown)
55 */
56 static ULONG WINAPI COMCAT_IClassFactory_AddRef(LPCLASSFACTORY iface)
57 {
58 ClassFactoryImpl *This = (ClassFactoryImpl *)iface;
59 ULONG ref;
60
61 TRACE("\n");
62
63 if (This == NULL) return E_POINTER;
64
65 ref = InterlockedIncrement(&This->ref);
66 if (ref == 1) {
67 InterlockedIncrement(&dll_ref);
68 }
69 return ref;
70 }
71
72 /**********************************************************************
73 * COMCAT_IClassFactory_Release (also IUnknown)
74 */
75 static ULONG WINAPI COMCAT_IClassFactory_Release(LPCLASSFACTORY iface)
76 {
77 ClassFactoryImpl *This = (ClassFactoryImpl *)iface;
78 ULONG ref;
79
80 TRACE("\n");
81
82 if (This == NULL) return E_POINTER;
83
84 ref = InterlockedDecrement(&This->ref);
85 if (ref == 0) {
86 InterlockedDecrement(&dll_ref);
87 }
88 return ref;
89 }
90
91 /**********************************************************************
92 * COMCAT_IClassFactory_CreateInstance
93 */
94 static HRESULT WINAPI COMCAT_IClassFactory_CreateInstance(
95 LPCLASSFACTORY iface,
96 LPUNKNOWN pUnkOuter,
97 REFIID riid,
98 LPVOID *ppvObj)
99 {
100 ClassFactoryImpl *This = (ClassFactoryImpl *)iface;
101 HRESULT res;
102 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
103
104 if (This == NULL || ppvObj == NULL) return E_POINTER;
105
106 /* Don't support aggregation (Windows doesn't) */
107 if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
108
109 res = IUnknown_QueryInterface((LPUNKNOWN)&COMCAT_ComCatMgr, riid, ppvObj);
110 if (SUCCEEDED(res)) {
111 return res;
112 }
113
114 return CLASS_E_CLASSNOTAVAILABLE;
115 }
116
117 /**********************************************************************
118 * COMCAT_IClassFactory_LockServer
119 */
120 static HRESULT WINAPI COMCAT_IClassFactory_LockServer(
121 LPCLASSFACTORY iface,
122 BOOL fLock)
123 {
124 TRACE("\n");
125
126 if (fLock != FALSE) {
127 IClassFactory_AddRef(iface);
128 } else {
129 IClassFactory_Release(iface);
130 }
131 return S_OK;
132 }
133
134 /**********************************************************************
135 * IClassFactory_Vtbl
136 */
137 static const IClassFactoryVtbl IClassFactory_Vtbl =
138 {
139 COMCAT_IClassFactory_QueryInterface,
140 COMCAT_IClassFactory_AddRef,
141 COMCAT_IClassFactory_Release,
142 COMCAT_IClassFactory_CreateInstance,
143 COMCAT_IClassFactory_LockServer
144 };
145
146 /**********************************************************************
147 * static ClassFactory instance
148 */
149 ClassFactoryImpl COMCAT_ClassFactory = { &IClassFactory_Vtbl, 0 };
150
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