winspool.drv: Reorder a couple of functions and remove the forward declarations.
[wine] / dlls / comcat / manager.c
1 /*
2  *      ComCatMgr IUnknown 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_IUnknown_AddRef(LPUNKNOWN iface);
28
29 /**********************************************************************
30  * COMCAT_IUnknown_QueryInterface
31  */
32 static HRESULT WINAPI COMCAT_IUnknown_QueryInterface(
33     LPUNKNOWN iface,
34     REFIID riid,
35     LPVOID *ppvObj)
36 {
37     ICOM_THIS_MULTI(ComCatMgrImpl, unkVtbl, 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         *ppvObj = &This->unkVtbl;
44         COMCAT_IUnknown_AddRef(iface);
45         return S_OK;
46     }
47
48     if (IsEqualGUID(riid, &IID_ICatRegister)) {
49         *ppvObj = &This->regVtbl;
50         COMCAT_IUnknown_AddRef(iface);
51         return S_OK;
52     }
53
54     if (IsEqualGUID(riid, &IID_ICatInformation)) {
55         *ppvObj = &This->infVtbl;
56         COMCAT_IUnknown_AddRef(iface);
57         return S_OK;
58     }
59
60     return E_NOINTERFACE;
61 }
62
63 /**********************************************************************
64  * COMCAT_IUnknown_AddRef
65  */
66 static ULONG WINAPI COMCAT_IUnknown_AddRef(LPUNKNOWN iface)
67 {
68     ICOM_THIS_MULTI(ComCatMgrImpl, unkVtbl, iface);
69     ULONG ref;
70
71     TRACE("\n");
72
73     if (This == NULL) return E_POINTER;
74
75     ref = InterlockedIncrement(&This->ref);
76     if (ref == 1) {
77         InterlockedIncrement(&dll_ref);
78     }
79     return ref;
80 }
81
82 /**********************************************************************
83  * COMCAT_IUnknown_Release
84  */
85 static ULONG WINAPI COMCAT_IUnknown_Release(LPUNKNOWN iface)
86 {
87     ICOM_THIS_MULTI(ComCatMgrImpl, unkVtbl, iface);
88     ULONG ref;
89
90     TRACE("\n");
91
92     if (This == NULL) return E_POINTER;
93
94     ref = InterlockedDecrement(&This->ref);
95     if (ref == 0) {
96         InterlockedDecrement(&dll_ref);
97     }
98     return ref;
99 }
100
101 /**********************************************************************
102  * COMCAT_IUnknown_Vtbl
103  */
104 static const IUnknownVtbl COMCAT_IUnknown_Vtbl =
105 {
106     COMCAT_IUnknown_QueryInterface,
107     COMCAT_IUnknown_AddRef,
108     COMCAT_IUnknown_Release
109 };
110
111 /**********************************************************************
112  * static ComCatMgr instance
113  */
114 ComCatMgrImpl COMCAT_ComCatMgr =
115 {
116     &COMCAT_IUnknown_Vtbl,
117     &COMCAT_ICatRegister_Vtbl,
118     &COMCAT_ICatInformation_Vtbl,
119     0
120 };