shell32/shellview: Remove unneeded memset, release browser reference on failure.
[wine] / dlls / dplayx / dpclassfactory.c
1 /* COM class factory for direct play lobby interfaces.
2  *
3  * Copyright 1999, 2000 Peter Hunnisett
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18  */
19
20 #include <stdarg.h>
21 #include <string.h>
22
23 #define COBJMACROS
24
25 #include "windef.h"
26 #include "winbase.h"
27 #include "winuser.h"
28 #include "objbase.h"
29 #include "winerror.h"
30 #include "wine/debug.h"
31 #include "dplay.h"
32 #include "dplobby.h"
33 #include "initguid.h"
34 #include "dpinit.h"
35
36 WINE_DEFAULT_DEBUG_CHANNEL(dplay);
37
38
39 /*******************************************************************************
40  * DirectPlayLobby ClassFactory
41  */
42
43 typedef struct
44 {
45     /* IUnknown fields */
46     const IClassFactoryVtbl    *lpVtbl;
47     LONG                        ref;
48 } IClassFactoryImpl;
49
50 static HRESULT WINAPI
51 DP_and_DPL_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
52         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
53
54         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
55
56         return E_NOINTERFACE;
57 }
58
59 static ULONG WINAPI
60 DP_and_DPL_AddRef(LPCLASSFACTORY iface) {
61         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
62         return InterlockedIncrement(&This->ref);
63 }
64
65 static ULONG WINAPI DP_and_DPL_Release(LPCLASSFACTORY iface) {
66         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
67         /* static class (reference starts @ 1), won't ever be freed */
68         return InterlockedDecrement(&This->ref);
69 }
70
71 static HRESULT WINAPI DP_and_DPL_CreateInstance(
72         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
73 ) {
74         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
75
76         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
77
78         if ( DPL_CreateInterface( riid, ppobj ) == S_OK )
79         {
80            return S_OK;
81         }
82         else if ( DP_CreateInterface( riid, ppobj ) == S_OK )
83         {
84            return S_OK;
85         }
86
87         return E_NOINTERFACE;
88 }
89
90 static HRESULT WINAPI DP_and_DPL_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
91         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
92         FIXME("(%p)->(%d),stub!\n",This,dolock);
93         return S_OK;
94 }
95
96 static const IClassFactoryVtbl DP_and_DPL_Vtbl = {
97         DP_and_DPL_QueryInterface,
98         DP_and_DPL_AddRef,
99         DP_and_DPL_Release,
100         DP_and_DPL_CreateInstance,
101         DP_and_DPL_LockServer
102 };
103
104 static IClassFactoryImpl DP_and_DPL_CF = {&DP_and_DPL_Vtbl, 1 };
105
106
107 /*******************************************************************************
108  * DllGetClassObject [DPLAYX.@]
109  * Retrieves DP or DPL class object from a DLL object
110  *
111  * NOTES
112  *    Docs say returns STDAPI
113  *
114  * PARAMS
115  *    rclsid [I] CLSID for the class object
116  *    riid   [I] Reference to identifier of interface for class object
117  *    ppv    [O] Address of variable to receive interface pointer for riid
118  *
119  * RETURNS
120  *    Success: S_OK
121  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
122  *             E_UNEXPECTED
123  */
124 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
125 {
126     TRACE("(%p,%p,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
127
128     if ( IsEqualCLSID( riid, &IID_IClassFactory ) )
129     {
130         *ppv = &DP_and_DPL_CF;
131         IClassFactory_AddRef( (IClassFactory*)*ppv );
132
133         return S_OK;
134     }
135
136     ERR("(%p,%p,%p): no interface found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
137     return CLASS_E_CLASSNOTAVAILABLE;
138 }