dlls/oledb32/main.c

   1 /* OLE DB Initialization
   2  *
   3  * Copyright 2009 Huw Davies
   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
  22 #define COBJMACROS
  23 #define NONAMELESSUNION
  24 #define NONAMELESSSTRUCT
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "ole2.h"
  29 #include "rpcproxy.h"
  30
  31 #include "initguid.h"
  32 #include "msdaguid.h"
  33
  34 #include "oledb_private.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(oledb);
  39
  40 static HINSTANCE instance;
  41
  42 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID lpv)
  43 {
  44     switch(reason)
  45     {
  46     case DLL_PROCESS_ATTACH:
  47         instance = hinst;
  48         DisableThreadLibraryCalls(hinst);
  49         break;
  50
  51     case DLL_PROCESS_DETACH:
  52         break;
  53     }
  54     return TRUE;
  55 }
  56
  57 /******************************************************************************
  58  * ClassFactory
  59  */
  60 typedef struct
  61 {
  62     IClassFactory IClassFactory_iface;
  63     HRESULT (*create_object)( IUnknown*, LPVOID* );
  64 } cf;
  65
  66 static inline cf *impl_from_IClassFactory(IClassFactory *iface)
  67 {
  68     return CONTAINING_RECORD(iface, cf, IClassFactory_iface);
  69 }
  70
  71 static HRESULT WINAPI CF_QueryInterface(IClassFactory *iface, REFIID riid, void **obj)
  72 {
  73     cf *This = impl_from_IClassFactory(iface);
  74
  75     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), obj);
  76
  77     if( IsEqualCLSID( riid, &IID_IUnknown ) ||
  78         IsEqualCLSID( riid, &IID_IClassFactory ) )
  79     {
  80         IClassFactory_AddRef( iface );
  81         *obj = iface;
  82         return S_OK;
  83     }
  84     return E_NOINTERFACE;
  85 }
  86
  87 static ULONG WINAPI CF_AddRef(IClassFactory *iface)
  88 {
  89     return 2;
  90 }
  91
  92 static ULONG WINAPI CF_Release(IClassFactory *iface)
  93 {
  94     return 1;
  95 }
  96
  97 static HRESULT WINAPI CF_CreateInstance(IClassFactory *iface, IUnknown *pOuter, REFIID riid, void **obj)
  98 {
  99     cf *This = impl_from_IClassFactory(iface);
 100     IUnknown *unk = NULL;
 101     HRESULT r;
 102
 103     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), obj);
 104
 105     r = This->create_object( pOuter, (void **) &unk );
 106     if (SUCCEEDED(r))
 107     {
 108         r = IUnknown_QueryInterface( unk, riid, obj );
 109         IUnknown_Release( unk );
 110     }
 111     return r;
 112 }
 113
 114 static HRESULT WINAPI CF_LockServer(IClassFactory *iface, BOOL dolock)
 115 {
 116     FIXME("(%p, %d): stub\n", iface, dolock);
 117     return S_OK;
 118 }
 119
 120 static const IClassFactoryVtbl CF_Vtbl =
 121 {
 122     CF_QueryInterface,
 123     CF_AddRef,
 124     CF_Release,
 125     CF_CreateInstance,
 126     CF_LockServer
 127 };
 128
 129 static cf oledb_convert_cf = { { &CF_Vtbl }, create_oledb_convert };
 130
 131 /******************************************************************
 132  * DllGetClassObject
 133  */
 134 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **obj)
 135 {
 136     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), obj);
 137
 138     if ( IsEqualCLSID (rclsid, &CLSID_OLEDB_CONVERSIONLIBRARY) )
 139     {
 140         *obj = &oledb_convert_cf;
 141         return S_OK;
 142     }
 143
 144     return CLASS_E_CLASSNOTAVAILABLE;
 145 }
 146
 147 /******************************************************************
 148  *              DllCanUnloadNow
 149  */
 150 HRESULT WINAPI DllCanUnloadNow(void)
 151 {
 152     return S_FALSE;
 153 }
 154
 155 /***********************************************************************
 156  *              DllRegisterServer
 157  */
 158 HRESULT WINAPI DllRegisterServer(void)
 159 {
 160     return __wine_register_resources( instance );
 161 }
 162
 163 /***********************************************************************
 164  *              DllUnregisterServer
 165  */
 166 HRESULT WINAPI DllUnregisterServer(void)
 167 {
 168     return __wine_unregister_resources( instance );
 169 }