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 typedef HRESULT (*fnCreateInstance)( void **obj );
  36
  37 struct msadocf
  38 {
  39     IClassFactory    IClassFactory_iface;
  40     fnCreateInstance pfnCreateInstance;
  41 };
  42
  43 static inline struct msadocf *impl_from_IClassFactory( IClassFactory *iface )
  44 {
  45     return CONTAINING_RECORD( iface, struct msadocf, IClassFactory_iface );
  46 }
  47
  48 static HRESULT WINAPI msadocf_QueryInterface( IClassFactory *iface, REFIID riid, void **obj )
  49 {
  50     if (IsEqualGUID( riid, &IID_IUnknown ) || IsEqualGUID( riid, &IID_IClassFactory ))
  51     {
  52         IClassFactory_AddRef( iface );
  53         *obj = iface;
  54         return S_OK;
  55     }
  56     FIXME( "interface %s not implemented\n", debugstr_guid(riid) );
  57     return E_NOINTERFACE;
  58 }
  59
  60 static ULONG WINAPI msadocf_AddRef( IClassFactory *iface )
  61 {
  62     return 2;
  63 }
  64
  65 static ULONG WINAPI msadocf_Release( IClassFactory *iface )
  66 {
  67     return 1;
  68 }
  69
  70 static HRESULT WINAPI msadocf_CreateInstance( IClassFactory *iface, LPUNKNOWN outer, REFIID riid, void **obj )
  71 {
  72     struct msadocf *cf = impl_from_IClassFactory( iface );
  73     IUnknown *unknown;
  74     HRESULT hr;
  75
  76     TRACE( "%p, %s, %p\n", outer, debugstr_guid(riid), obj );
  77
  78     *obj = NULL;
  79     if (outer)
  80         return CLASS_E_NOAGGREGATION;
  81
  82     hr = cf->pfnCreateInstance( (void **)&unknown );
  83     if (FAILED(hr))
  84         return hr;
  85
  86     hr = IUnknown_QueryInterface( unknown, riid, obj );
  87     IUnknown_Release( unknown );
  88     return hr;
  89 }
  90
  91 static HRESULT WINAPI msadocf_LockServer( IClassFactory *iface, BOOL dolock )
  92 {
  93     FIXME( "%p, %d\n", iface, dolock );
  94     return S_OK;
  95 }
  96
  97 static const struct IClassFactoryVtbl msadocf_vtbl =
  98 {
  99     msadocf_QueryInterface,
 100     msadocf_AddRef,
 101     msadocf_Release,
 102     msadocf_CreateInstance,
 103     msadocf_LockServer
 104 };
 105
 106 static struct msadocf command_cf = { { &msadocf_vtbl }, Command_create };
 107 static struct msadocf connection_cf = { { &msadocf_vtbl }, Connection_create };
 108 static struct msadocf recordset_cf = { { &msadocf_vtbl }, Recordset_create };
 109 static struct msadocf stream_cf = { { &msadocf_vtbl }, Stream_create };
 110
 111 /***********************************************************************
 112  *          DllGetClassObject
 113  */
 114 HRESULT WINAPI DllGetClassObject( REFCLSID clsid, REFIID iid, void **obj )
 115 {
 116     IClassFactory *cf = NULL;
 117
 118     TRACE( "%s, %s, %p\n", debugstr_guid(clsid), debugstr_guid(iid), obj );
 119
 120     if (IsEqualGUID( clsid, &CLSID_Connection ))
 121     {
 122         cf = &connection_cf.IClassFactory_iface;
 123     }
 124     else if (IsEqualGUID( clsid, &CLSID_Recordset ))
 125     {
 126         cf = &recordset_cf.IClassFactory_iface;
 127     }
 128     else if (IsEqualGUID( clsid, &CLSID_Stream ))
 129     {
 130         cf = &stream_cf.IClassFactory_iface;
 131     }
 132     else if (IsEqualGUID( clsid, &CLSID_Command ))
 133     {
 134         cf = &command_cf.IClassFactory_iface;
 135     }
 136     if (!cf) return CLASS_E_CLASSNOTAVAILABLE;
 137     return IClassFactory_QueryInterface( cf, iid, obj );
 138 }
 139
 140 static ITypeLib *typelib;
 141 static ITypeInfo *typeinfos[LAST_tid];
 142
 143 static REFIID tid_ids[] = {
 144     &IID_ADORecordsetConstruction,
 145     &IID__Command,
 146     &IID__Connection,
 147     &IID_Field,
 148     &IID_Fields,
 149     &IID_Properties,
 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, 1, 0, LOCALE_SYSTEM_DEFAULT, &tl);
 163     if(FAILED(hres)) {
 164         ERR("LoadRegTypeLib failed: %08x\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: %08x\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 }