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