dlls/msxml3/main.c

   1 /*
   2  *    MSXML Class Factory
   3  *
   4  * Copyright 2002 Lionel Ulmer
   5  * Copyright 2005 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #define COBJMACROS
  25
  26 #include <stdarg.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winuser.h"
  30 #include "ole2.h"
  31 #include "msxml.h"
  32 #include "msxml2.h"
  33
  34 #include "wine/debug.h"
  35
  36 #include "msxml_private.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  39
  40 static HINSTANCE hInstance;
  41 static ITypeLib *typelib;
  42 static ITypeInfo *typeinfos[LAST_tid];
  43
  44 static REFIID tid_ids[] = {
  45     &IID_IXMLDOMAttribute,
  46     &IID_IXMLDOMCDATASection,
  47     &IID_IXMLDOMComment,
  48     &IID_IXMLDOMDocument2,
  49     &IID_IXMLDOMDocumentFragment,
  50     &IID_IXMLDOMElement,
  51     &IID_IXMLDOMEntityReference,
  52     &IID_IXMLDOMImplementation,
  53     &IID_IXMLDOMNamedNodeMap,
  54     &IID_IXMLDOMNodeList,
  55     &IID_IXMLDOMParseError,
  56     &IID_IXMLDOMProcessingInstruction,
  57     &IID_IXMLDOMSchemaCollection,
  58     &IID_IXMLDOMText,
  59     &IID_IXMLElement,
  60     &IID_IXMLDOMDocument
  61 };
  62
  63 HRESULT get_typeinfo(enum tid_t tid, ITypeInfo **typeinfo)
  64 {
  65     HRESULT hres;
  66
  67     if(!typelib) {
  68         ITypeLib *tl;
  69
  70         hres = LoadRegTypeLib(&LIBID_MSXML2, 3, 0, LOCALE_SYSTEM_DEFAULT, &tl);
  71         if(FAILED(hres)) {
  72             ERR("LoadRegTypeLib failed: %08x\n", hres);
  73             return hres;
  74         }
  75
  76         if(InterlockedCompareExchangePointer((void**)&typelib, tl, NULL))
  77             ITypeLib_Release(tl);
  78     }
  79
  80     if(!typeinfos[tid]) {
  81         ITypeInfo *typeinfo;
  82
  83         hres = ITypeLib_GetTypeInfoOfGuid(typelib, tid_ids[tid], &typeinfo);
  84         if(FAILED(hres)) {
  85             ERR("GetTypeInfoOfGuid failed: %08x\n", hres);
  86             return hres;
  87         }
  88
  89         if(InterlockedCompareExchangePointer((void**)(typeinfos+tid), typeinfo, NULL))
  90             ITypeInfo_Release(typeinfo);
  91     }
  92
  93     *typeinfo = typeinfos[tid];
  94
  95     ITypeInfo_AddRef(typeinfos[tid]);
  96     return S_OK;
  97 }
  98
  99 static CRITICAL_SECTION MSXML3_typelib_cs;
 100 static CRITICAL_SECTION_DEBUG MSXML3_typelib_cs_debug =
 101 {
 102     0, 0, &MSXML3_typelib_cs,
 103     { &MSXML3_typelib_cs_debug.ProcessLocksList,
 104       &MSXML3_typelib_cs_debug.ProcessLocksList },
 105       0, 0, { (DWORD_PTR)(__FILE__ ": MSXML3_typelib_cs") }
 106 };
 107 static CRITICAL_SECTION MSXML3_typelib_cs = { &MSXML3_typelib_cs_debug, -1, 0, 0, 0, 0 };
 108
 109 ITypeLib *get_msxml3_typelib( LPWSTR *path )
 110 {
 111     static WCHAR msxml3_path[MAX_PATH];
 112
 113     EnterCriticalSection( &MSXML3_typelib_cs );
 114
 115     if (!typelib)
 116     {
 117         TRACE("loading typelib\n");
 118
 119         if (GetModuleFileNameW( hInstance, msxml3_path, MAX_PATH ))
 120             LoadTypeLib( msxml3_path, &typelib );
 121     }
 122
 123     LeaveCriticalSection( &MSXML3_typelib_cs );
 124
 125     if (path)
 126         *path = msxml3_path;
 127
 128     if (typelib)
 129         ITypeLib_AddRef( typelib );
 130
 131     return typelib;
 132 }
 133
 134 static void process_detach(void)
 135 {
 136     if(typelib) {
 137         unsigned i;
 138
 139         for(i=0; i < sizeof(typeinfos)/sizeof(*typeinfos); i++)
 140             if(typeinfos[i])
 141                 ITypeInfo_Release(typeinfos[i]);
 142
 143         ITypeLib_Release(typelib);
 144     }
 145 }
 146
 147 HRESULT WINAPI DllCanUnloadNow(void)
 148 {
 149     FIXME("\n");
 150     return S_FALSE;
 151 }
 152
 153 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
 154 {
 155     switch(fdwReason)
 156     {
 157     case DLL_PROCESS_ATTACH:
 158 #ifdef HAVE_LIBXML2
 159         xmlInitParser();
 160 #endif
 161         hInstance = hInstDLL;
 162         DisableThreadLibraryCalls(hInstDLL);
 163         break;
 164     case DLL_PROCESS_DETACH:
 165 #ifdef HAVE_LIBXML2
 166         xmlCleanupParser();
 167         process_detach();
 168 #endif
 169         break;
 170     }
 171     return TRUE;
 172 }