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 #include "msdasc.h"
  31
  32 #include "initguid.h"
  33 #include "msdaguid.h"
  34
  35 #include "oledb_private.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(oledb);
  40
  41 static HINSTANCE instance;
  42
  43 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID lpv)
  44 {
  45     switch(reason)
  46     {
  47     case DLL_PROCESS_ATTACH:
  48         instance = hinst;
  49         DisableThreadLibraryCalls(hinst);
  50         break;
  51
  52     case DLL_PROCESS_DETACH:
  53         break;
  54     }
  55     return TRUE;
  56 }
  57
  58 /******************************************************************************
  59  * ClassFactory
  60  */
  61 typedef struct
  62 {
  63     IClassFactory IClassFactory_iface;
  64     HRESULT (*create_object)( IUnknown*, LPVOID* );
  65 } cf;
  66
  67 static inline cf *impl_from_IClassFactory(IClassFactory *iface)
  68 {
  69     return CONTAINING_RECORD(iface, cf, IClassFactory_iface);
  70 }
  71
  72 static HRESULT WINAPI CF_QueryInterface(IClassFactory *iface, REFIID riid, void **obj)
  73 {
  74     cf *This = impl_from_IClassFactory(iface);
  75
  76     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), obj);
  77
  78     if( IsEqualCLSID( riid, &IID_IUnknown ) ||
  79         IsEqualCLSID( riid, &IID_IClassFactory ) )
  80     {
  81         IClassFactory_AddRef( iface );
  82         *obj = iface;
  83         return S_OK;
  84     }
  85     return E_NOINTERFACE;
  86 }
  87
  88 static ULONG WINAPI CF_AddRef(IClassFactory *iface)
  89 {
  90     return 2;
  91 }
  92
  93 static ULONG WINAPI CF_Release(IClassFactory *iface)
  94 {
  95     return 1;
  96 }
  97
  98 static HRESULT WINAPI CF_CreateInstance(IClassFactory *iface, IUnknown *pOuter, REFIID riid, void **obj)
  99 {
 100     cf *This = impl_from_IClassFactory(iface);
 101     IUnknown *unk = NULL;
 102     HRESULT r;
 103
 104     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), obj);
 105
 106     r = This->create_object( pOuter, (void **) &unk );
 107     if (SUCCEEDED(r))
 108     {
 109         r = IUnknown_QueryInterface( unk, riid, obj );
 110         IUnknown_Release( unk );
 111     }
 112     return r;
 113 }
 114
 115 static HRESULT WINAPI CF_LockServer(IClassFactory *iface, BOOL dolock)
 116 {
 117     FIXME("(%p, %d): stub\n", iface, dolock);
 118     return S_OK;
 119 }
 120
 121 static const IClassFactoryVtbl CF_Vtbl =
 122 {
 123     CF_QueryInterface,
 124     CF_AddRef,
 125     CF_Release,
 126     CF_CreateInstance,
 127     CF_LockServer
 128 };
 129
 130 static cf oledb_convert_cf = { { &CF_Vtbl }, create_oledb_convert };
 131 static cf oledb_datainit_cf = { { &CF_Vtbl }, create_data_init };
 132
 133 /******************************************************************
 134  * DllGetClassObject
 135  */
 136 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **obj)
 137 {
 138     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), obj);
 139
 140     if ( IsEqualCLSID (rclsid, &CLSID_OLEDB_CONVERSIONLIBRARY) )
 141     {
 142         *obj = &oledb_convert_cf;
 143         return S_OK;
 144     }
 145     else if ( IsEqualCLSID (rclsid, &CLSID_MSDAINITIALIZE) )
 146     {
 147         *obj = &oledb_datainit_cf;
 148         return S_OK;
 149     }
 150
 151     return CLASS_E_CLASSNOTAVAILABLE;
 152 }
 153
 154 /******************************************************************
 155  *              DllCanUnloadNow
 156  */
 157 HRESULT WINAPI DllCanUnloadNow(void)
 158 {
 159     return S_FALSE;
 160 }
 161
 162 /***********************************************************************
 163  *              DllRegisterServer
 164  */
 165 HRESULT WINAPI DllRegisterServer(void)
 166 {
 167     return __wine_register_resources( instance );
 168 }
 169
 170 /***********************************************************************
 171  *              DllUnregisterServer
 172  */
 173 HRESULT WINAPI DllUnregisterServer(void)
 174 {
 175     return __wine_unregister_resources( instance );
 176 }