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