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
  30 #include "msado15_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(msado15);
  33
  34 typedef HRESULT (*fnCreateInstance)( void **obj );
  35
  36 struct msadocf
  37 {
  38     IClassFactory    IClassFactory_iface;
  39     fnCreateInstance pfnCreateInstance;
  40 };
  41
  42 static inline struct msadocf *impl_from_IClassFactory( IClassFactory *iface )
  43 {
  44     return CONTAINING_RECORD( iface, struct msadocf, IClassFactory_iface );
  45 }
  46
  47 static HRESULT WINAPI msadocf_QueryInterface( IClassFactory *iface, REFIID riid, void **obj )
  48 {
  49     if (IsEqualGUID( riid, &IID_IUnknown ) || IsEqualGUID( riid, &IID_IClassFactory ))
  50     {
  51         IClassFactory_AddRef( iface );
  52         *obj = iface;
  53         return S_OK;
  54     }
  55     FIXME( "interface %s not implemented\n", debugstr_guid(riid) );
  56     return E_NOINTERFACE;
  57 }
  58
  59 static ULONG WINAPI msadocf_AddRef( IClassFactory *iface )
  60 {
  61     return 2;
  62 }
  63
  64 static ULONG WINAPI msadocf_Release( IClassFactory *iface )
  65 {
  66     return 1;
  67 }
  68
  69 static HRESULT WINAPI msadocf_CreateInstance( IClassFactory *iface, LPUNKNOWN outer, REFIID riid, void **obj )
  70 {
  71     struct msadocf *cf = impl_from_IClassFactory( iface );
  72     IUnknown *unknown;
  73     HRESULT hr;
  74
  75     TRACE( "%p, %s, %p\n", outer, debugstr_guid(riid), obj );
  76
  77     *obj = NULL;
  78     if (outer)
  79         return CLASS_E_NOAGGREGATION;
  80
  81     hr = cf->pfnCreateInstance( (void **)&unknown );
  82     if (FAILED(hr))
  83         return hr;
  84
  85     hr = IUnknown_QueryInterface( unknown, riid, obj );
  86     IUnknown_Release( unknown );
  87     return hr;
  88 }
  89
  90 static HRESULT WINAPI msadocf_LockServer( IClassFactory *iface, BOOL dolock )
  91 {
  92     FIXME( "%p, %d\n", iface, dolock );
  93     return S_OK;
  94 }
  95
  96 static const struct IClassFactoryVtbl msadocf_vtbl =
  97 {
  98     msadocf_QueryInterface,
  99     msadocf_AddRef,
 100     msadocf_Release,
 101     msadocf_CreateInstance,
 102     msadocf_LockServer
 103 };
 104
 105 static struct msadocf command_cf = { { &msadocf_vtbl }, Command_create };
 106 static struct msadocf connection_cf = { { &msadocf_vtbl }, Connection_create };
 107 static struct msadocf recordset_cf = { { &msadocf_vtbl }, Recordset_create };
 108 static struct msadocf stream_cf = { { &msadocf_vtbl }, Stream_create };
 109
 110 /***********************************************************************
 111  *          DllGetClassObject
 112  */
 113 HRESULT WINAPI DllGetClassObject( REFCLSID clsid, REFIID iid, void **obj )
 114 {
 115     IClassFactory *cf = NULL;
 116
 117     TRACE( "%s, %s, %p\n", debugstr_guid(clsid), debugstr_guid(iid), obj );
 118
 119     if (IsEqualGUID( clsid, &CLSID_Connection ))
 120     {
 121         cf = &connection_cf.IClassFactory_iface;
 122     }
 123     else if (IsEqualGUID( clsid, &CLSID_Recordset ))
 124     {
 125         cf = &recordset_cf.IClassFactory_iface;
 126     }
 127     else if (IsEqualGUID( clsid, &CLSID_Stream ))
 128     {
 129         cf = &stream_cf.IClassFactory_iface;
 130     }
 131     else if (IsEqualGUID( clsid, &CLSID_Command ))
 132     {
 133         cf = &command_cf.IClassFactory_iface;
 134     }
 135     if (!cf) return CLASS_E_CLASSNOTAVAILABLE;
 136     return IClassFactory_QueryInterface( cf, iid, obj );
 137 }
 138
 139 static ITypeLib *typelib;
 140 static ITypeInfo *typeinfos[LAST_tid];
 141
 142 static REFIID tid_ids[] = {
 143     &IID_ADORecordsetConstruction,
 144     &IID__Command,
 145     &IID__Connection,
 146     &IID_Field,
 147     &IID_Fields,
 148     &IID_Properties,
 149     &IID_Property,
 150     &IID__Recordset,
 151     &IID__Stream,
 152 };
 153
 154 static HRESULT load_typelib(void)
 155 {
 156     HRESULT hres;
 157     ITypeLib *tl;
 158
 159     if(typelib)
 160         return S_OK;
 161
 162     hres = LoadRegTypeLib(&LIBID_ADODB, 2, 8, LOCALE_SYSTEM_DEFAULT, &tl);
 163     if(FAILED(hres)) {
 164         ERR("LoadRegTypeLib failed: %08lx\n", hres);
 165         return hres;
 166     }
 167
 168     if(InterlockedCompareExchangePointer((void**)&typelib, tl, NULL))
 169         ITypeLib_Release(tl);
 170     return hres;
 171 }
 172
 173 HRESULT get_typeinfo(tid_t tid, ITypeInfo **typeinfo)
 174 {
 175     HRESULT hres;
 176
 177     if (FAILED(hres = load_typelib()))
 178         return hres;
 179
 180     if(!typeinfos[tid]) {
 181         ITypeInfo *ti;
 182
 183         hres = ITypeLib_GetTypeInfoOfGuid(typelib, tid_ids[tid], &ti);
 184         if(FAILED(hres)) {
 185             ERR("GetTypeInfoOfGuid(%s) failed: %08lx\n", debugstr_guid(tid_ids[tid]), hres);
 186             return hres;
 187         }
 188
 189         if(InterlockedCompareExchangePointer((void**)(typeinfos+tid), ti, NULL))
 190             ITypeInfo_Release(ti);
 191     }
 192
 193     *typeinfo = typeinfos[tid];
 194     ITypeInfo_AddRef(*typeinfo);
 195     return S_OK;
 196 }