1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_bridges.hxx" 30 31 #include <stdio.h> 32 #include <dlfcn.h> 33 #include <cxxabi.h> 34 #include <hash_map> 35 36 #include <rtl/strbuf.hxx> 37 #include <rtl/ustrbuf.hxx> 38 #include <osl/diagnose.h> 39 #include <osl/mutex.hxx> 40 41 #include <bridges/cpp_uno/bridge.hxx> 42 #include <typelib/typedescription.hxx> 43 #include <uno/any2.h> 44 45 #include "share.hxx" 46 47 #ifndef RTLD_DEFAULT 48 #define RTLD_DEFAULT ((void *) -2) 49 #endif 50 51 using namespace ::std; 52 using namespace ::osl; 53 using namespace ::rtl; 54 using namespace ::com::sun::star::uno; 55 using namespace ::__cxxabiv1; 56 57 58 namespace CPPU_CURRENT_NAMESPACE 59 { 60 61 void dummy_can_throw_anything( char const * ) 62 { 63 } 64 65 //================================================================================================== 66 static OUString toUNOname( char const * p ) SAL_THROW( () ) 67 { 68 #if OSL_DEBUG_LEVEL > 1 69 char const * start = p; 70 #endif 71 72 // example: N3com3sun4star4lang24IllegalArgumentExceptionE 73 74 OUStringBuffer buf( 64 ); 75 OSL_ASSERT( 'N' == *p ); 76 ++p; // skip N 77 78 while ('E' != *p) 79 { 80 // read chars count 81 long n = (*p++ - '0'); 82 while ('0' <= *p && '9' >= *p) 83 { 84 n *= 10; 85 n += (*p++ - '0'); 86 } 87 buf.appendAscii( p, n ); 88 p += n; 89 if ('E' != *p) 90 buf.append( (sal_Unicode)'.' ); 91 } 92 93 #if OSL_DEBUG_LEVEL > 1 94 OUString ret( buf.makeStringAndClear() ); 95 OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) ); 96 fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() ); 97 return ret; 98 #else 99 return buf.makeStringAndClear(); 100 #endif 101 } 102 103 //================================================================================================== 104 class RTTI 105 { 106 typedef hash_map< OUString, type_info *, OUStringHash > t_rtti_map; 107 108 Mutex m_mutex; 109 t_rtti_map m_rttis; 110 t_rtti_map m_generatedRttis; 111 112 void * m_hApp; 113 114 public: 115 RTTI() SAL_THROW( () ); 116 ~RTTI() SAL_THROW( () ); 117 118 type_info * getRTTI( typelib_CompoundTypeDescription * ) SAL_THROW( () ); 119 }; 120 //__________________________________________________________________________________________________ 121 RTTI::RTTI() SAL_THROW( () ) 122 : m_hApp( dlopen( 0 , RTLD_LAZY ) ) 123 { 124 } 125 //__________________________________________________________________________________________________ 126 RTTI::~RTTI() SAL_THROW( () ) 127 { 128 dlclose( m_hApp ); 129 } 130 131 //__________________________________________________________________________________________________ 132 type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW( () ) 133 { 134 type_info * rtti; 135 136 OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName; 137 138 MutexGuard guard( m_mutex ); 139 t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) ); 140 if (iFind == m_rttis.end()) 141 { 142 // RTTI symbol 143 OStringBuffer buf( 64 ); 144 buf.append( RTL_CONSTASCII_STRINGPARAM("_ZTIN") ); 145 sal_Int32 index = 0; 146 do 147 { 148 OUString token( unoName.getToken( 0, '.', index ) ); 149 buf.append( token.getLength() ); 150 OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) ); 151 buf.append( c_token ); 152 } 153 while (index >= 0); 154 buf.append( 'E' ); 155 156 OString symName( buf.makeStringAndClear() ); 157 rtti = (type_info *)dlsym( RTLD_DEFAULT, symName.getStr() ); 158 159 if (rtti) 160 { 161 pair< t_rtti_map::iterator, bool > insertion( 162 m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); 163 OSL_ENSURE( insertion.second, "### inserting new rtti failed?!" ); 164 } 165 else 166 { 167 // try to lookup the symbol in the generated rtti map 168 t_rtti_map::const_iterator iFind( m_generatedRttis.find( unoName ) ); 169 if (iFind == m_generatedRttis.end()) 170 { 171 // we must generate it ! 172 // symbol and rtti-name is nearly identical, 173 // the symbol is prefixed with _ZTI 174 char const * rttiName = symName.getStr() +4; 175 #if OSL_DEBUG_LEVEL > 1 176 fprintf( stderr,"generated rtti for %s\n", rttiName ); 177 #endif 178 if (pTypeDescr->pBaseTypeDescription) 179 { 180 // ensure availability of base 181 type_info * base_rtti = getRTTI( 182 (typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription ); 183 rtti = new __si_class_type_info( 184 strdup( rttiName ), (__class_type_info *)base_rtti ); 185 } 186 else 187 { 188 // this class has no base class 189 rtti = new __class_type_info( strdup( rttiName ) ); 190 } 191 192 pair< t_rtti_map::iterator, bool > insertion( 193 m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); 194 OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" ); 195 } 196 else // taking already generated rtti 197 { 198 rtti = iFind->second; 199 } 200 } 201 } 202 else 203 { 204 rtti = iFind->second; 205 } 206 207 return rtti; 208 } 209 210 //-------------------------------------------------------------------------------------------------- 211 static void deleteException( void * pExc ) 212 { 213 __cxa_exception const * header = ((__cxa_exception const *)pExc - 1); 214 typelib_TypeDescription * pTD = 0; 215 OUString unoName( toUNOname( header->exceptionType->name() ) ); 216 ::typelib_typedescription_getByName( &pTD, unoName.pData ); 217 OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" ); 218 if (pTD) 219 { 220 ::uno_destructData( pExc, pTD, cpp_release ); 221 ::typelib_typedescription_release( pTD ); 222 } 223 } 224 225 //================================================================================================== 226 void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ) 227 { 228 #if defined DEBUG 229 OString cstr( 230 OUStringToOString( 231 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), 232 RTL_TEXTENCODING_ASCII_US ) ); 233 fprintf( stderr, "> uno exception occured: %s\n", cstr.getStr() ); 234 #endif 235 void * pCppExc; 236 type_info * rtti; 237 238 { 239 // construct cpp exception object 240 typelib_TypeDescription * pTypeDescr = 0; 241 TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType ); 242 OSL_ASSERT( pTypeDescr ); 243 if (! pTypeDescr) 244 { 245 throw RuntimeException( 246 OUString( RTL_CONSTASCII_USTRINGPARAM("cannot get typedescription for type ") ) + 247 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), 248 Reference< XInterface >() ); 249 } 250 251 pCppExc = __cxa_allocate_exception( pTypeDescr->nSize ); 252 ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp ); 253 254 // destruct uno exception 255 ::uno_any_destruct( pUnoExc, 0 ); 256 // avoiding locked counts 257 static RTTI * s_rtti = 0; 258 if (! s_rtti) 259 { 260 MutexGuard guard( Mutex::getGlobalMutex() ); 261 if (! s_rtti) 262 { 263 #ifdef LEAK_STATIC_DATA 264 s_rtti = new RTTI(); 265 #else 266 static RTTI rtti_data; 267 s_rtti = &rtti_data; 268 #endif 269 } 270 } 271 rtti = (type_info *)s_rtti->getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr ); 272 TYPELIB_DANGER_RELEASE( pTypeDescr ); 273 OSL_ENSURE( rtti, "### no rtti for throwing exception!" ); 274 if (! rtti) 275 { 276 throw RuntimeException( 277 OUString( RTL_CONSTASCII_USTRINGPARAM("no rtti for type ") ) + 278 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), 279 Reference< XInterface >() ); 280 } 281 } 282 283 __cxa_throw( pCppExc, rtti, deleteException ); 284 } 285 286 //================================================================================================== 287 void fillUnoException( __cxa_exception * header, uno_Any * pUnoExc, uno_Mapping * pCpp2Uno ) 288 { 289 if (! header) 290 { 291 RuntimeException aRE( 292 OUString( RTL_CONSTASCII_USTRINGPARAM("no exception header!") ), 293 Reference< XInterface >() ); 294 Type const & rType = ::getCppuType( &aRE ); 295 uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); 296 #if defined _DEBUG 297 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) ); 298 OSL_ENSURE( 0, cstr.getStr() ); 299 #endif 300 return; 301 } 302 303 typelib_TypeDescription * pExcTypeDescr = 0; 304 OUString unoName( toUNOname( header->exceptionType->name() ) ); 305 #if defined DEBUG 306 OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) ); 307 fprintf( stderr, "> c++ exception occured: %s\n", cstr_unoName.getStr() ); 308 #endif 309 typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData ); 310 if (0 == pExcTypeDescr) 311 { 312 RuntimeException aRE( 313 OUString( RTL_CONSTASCII_USTRINGPARAM("exception type not found: ") ) + unoName, 314 Reference< XInterface >() ); 315 Type const & rType = ::getCppuType( &aRE ); 316 uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); 317 #if defined _DEBUG 318 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) ); 319 OSL_ENSURE( 0, cstr.getStr() ); 320 #endif 321 } 322 else 323 { 324 // construct uno exception any 325 uno_any_constructAndConvert( pUnoExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno ); 326 typelib_typedescription_release( pExcTypeDescr ); 327 } 328 } 329 330 } 331 332