dlls/msado15/main.c

   1 /*
   2  * Copyright 2019 Hans Leidekker for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20 #include "windef.h"
  21 #include "winbase.h"
  22 #define COBJMACROS
  23 #include "objbase.h"
  24 #include "rpcproxy.h"
  25 #include "msdasc.h"
  26 #include "msado15_backcompat.h"
  27
  28 #include "wine/debug.h"
  29 #include "wine/heap.h"
  30
  31 #include "msado15_private.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(msado15);
  34
  35 static HINSTANCE hinstance;
  36
  37 BOOL WINAPI DllMain( HINSTANCE dll, DWORD reason, LPVOID reserved )
  38 {
  39     switch (reason)
  40     {
  41     case DLL_PROCESS_ATTACH:
  42         hinstance = dll;
  43         DisableThreadLibraryCalls( dll );
  44         break;
  45     }
  46     return TRUE;
  47 }
  48
  49 typedef HRESULT (*fnCreateInstance)( void **obj );
  50
  51 struct msadocf
  52 {
  53     IClassFactory    IClassFactory_iface;
  54     fnCreateInstance pfnCreateInstance;
  55 };
  56
  57 static inline struct msadocf *impl_from_IClassFactory( IClassFactory *iface )
  58 {
  59     return CONTAINING_RECORD( iface, struct msadocf, IClassFactory_iface );
  60 }
  61
  62 static HRESULT WINAPI msadocf_QueryInterface( IClassFactory *iface, REFIID riid, void **obj )
  63 {
  64     if (IsEqualGUID( riid, &IID_IUnknown ) || IsEqualGUID( riid, &IID_IClassFactory ))
  65     {
  66         IClassFactory_AddRef( iface );
  67         *obj = iface;
  68         return S_OK;
  69     }
  70     FIXME( "interface %s not implemented\n", debugstr_guid(riid) );
  71     return E_NOINTERFACE;
  72 }
  73
  74 static ULONG WINAPI msadocf_AddRef( IClassFactory *iface )
  75 {
  76     return 2;
  77 }
  78
  79 static ULONG WINAPI msadocf_Release( IClassFactory *iface )
  80 {
  81     return 1;
  82 }
  83
  84 static HRESULT WINAPI msadocf_CreateInstance( IClassFactory *iface, LPUNKNOWN outer, REFIID riid, void **obj )
  85 {
  86     struct msadocf *cf = impl_from_IClassFactory( iface );
  87     IUnknown *unknown;
  88     HRESULT hr;
  89
  90     TRACE( "%p, %s, %p\n", outer, debugstr_guid(riid), obj );
  91
  92     *obj = NULL;
  93     if (outer)
  94         return CLASS_E_NOAGGREGATION;
  95
  96     hr = cf->pfnCreateInstance( (void **)&unknown );
  97     if (FAILED(hr))
  98         return hr;
  99
 100     hr = IUnknown_QueryInterface( unknown, riid, obj );
 101     IUnknown_Release( unknown );
 102     return hr;
 103 }
 104
 105 static HRESULT WINAPI msadocf_LockServer( IClassFactory *iface, BOOL dolock )
 106 {
 107     FIXME( "%p, %d\n", iface, dolock );
 108     return S_OK;
 109 }
 110
 111 static const struct IClassFactoryVtbl msadocf_vtbl =
 112 {
 113     msadocf_QueryInterface,
 114     msadocf_AddRef,
 115     msadocf_Release,
 116     msadocf_CreateInstance,
 117     msadocf_LockServer
 118 };
 119
 120 static struct msadocf command_cf = { { &msadocf_vtbl }, Command_create };
 121 static struct msadocf connection_cf = { { &msadocf_vtbl }, Connection_create };
 122 static struct msadocf recordset_cf = { { &msadocf_vtbl }, Recordset_create };
 123 static struct msadocf stream_cf = { { &msadocf_vtbl }, Stream_create };
 124
 125 /***********************************************************************
 126  *          DllGetClassObject
 127  */
 128 HRESULT WINAPI DllGetClassObject( REFCLSID clsid, REFIID iid, void **obj )
 129 {
 130     IClassFactory *cf = NULL;
 131
 132     TRACE( "%s, %s, %p\n", debugstr_guid(clsid), debugstr_guid(iid), obj );
 133
 134     if (IsEqualGUID( clsid, &CLSID_Connection ))
 135     {
 136         cf = &connection_cf.IClassFactory_iface;
 137     }
 138     else if (IsEqualGUID( clsid, &CLSID_Recordset ))
 139     {
 140         cf = &recordset_cf.IClassFactory_iface;
 141     }
 142     else if (IsEqualGUID( clsid, &CLSID_Stream ))
 143     {
 144         cf = &stream_cf.IClassFactory_iface;
 145     }
 146     else if (IsEqualGUID( clsid, &CLSID_Command ))
 147     {
 148         cf = &command_cf.IClassFactory_iface;
 149     }
 150     if (!cf) return CLASS_E_CLASSNOTAVAILABLE;
 151     return IClassFactory_QueryInterface( cf, iid, obj );
 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( hinstance );
 168 }
 169
 170 /***********************************************************************
 171  *          DllUnregisterServer
 172  */
 173 HRESULT WINAPI DllUnregisterServer( void )
 174 {
 175     return __wine_unregister_resources( hinstance );
 176 }
 177
 178 static ITypeLib *typelib;
 179 static ITypeInfo *typeinfos[LAST_tid];
 180
 181 static REFIID tid_ids[] = {
 182     &IID_ADORecordsetConstruction,
 183     &IID__Command,
 184     &IID__Connection,
 185     &IID_Field,
 186     &IID_Fields,
 187     &IID__Recordset,
 188     &IID__Stream,
 189 };
 190
 191 static HRESULT load_typelib(void)
 192 {
 193     HRESULT hres;
 194     ITypeLib *tl;
 195
 196     if(typelib)
 197         return S_OK;
 198
 199     hres = LoadRegTypeLib(&LIBID_ADODB, 1, 0, LOCALE_SYSTEM_DEFAULT, &tl);
 200     if(FAILED(hres)) {
 201         ERR("LoadRegTypeLib failed: %08x\n", hres);
 202         return hres;
 203     }
 204
 205     if(InterlockedCompareExchangePointer((void**)&typelib, tl, NULL))
 206         ITypeLib_Release(tl);
 207     return hres;
 208 }
 209
 210 HRESULT get_typeinfo(tid_t tid, ITypeInfo **typeinfo)
 211 {
 212     HRESULT hres;
 213
 214     if (FAILED(hres = load_typelib()))
 215         return hres;
 216
 217     if(!typeinfos[tid]) {
 218         ITypeInfo *ti;
 219
 220         hres = ITypeLib_GetTypeInfoOfGuid(typelib, tid_ids[tid], &ti);
 221         if(FAILED(hres)) {
 222             ERR("GetTypeInfoOfGuid(%s) failed: %08x\n", debugstr_guid(tid_ids[tid]), hres);
 223             return hres;
 224         }
 225
 226         if(InterlockedCompareExchangePointer((void**)(typeinfos+tid), ti, NULL))
 227             ITypeInfo_Release(ti);
 228     }
 229
 230     *typeinfo = typeinfos[tid];
 231     ITypeInfo_AddRef(*typeinfo);
 232     return S_OK;
 233 }