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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 <com/sun/star/uno/genfunc.hxx> 42 #include "com/sun/star/uno/RuntimeException.hpp" 43 #include <typelib/typedescription.hxx> 44 #include <uno/any2.h> 45 46 #include "share.hxx" 47 48 49 using namespace ::std; 50 using namespace ::osl; 51 using namespace ::rtl; 52 using namespace ::com::sun::star::uno; 53 using namespace ::__cxxabiv1; 54 55 56 namespace CPPU_CURRENT_NAMESPACE 57 { 58 59 void dummy_can_throw_anything( char const * ) 60 { 61 } 62 63 //================================================================================================== 64 static OUString toUNOname( char const * p ) SAL_THROW( () ) 65 { 66 #if OSL_DEBUG_LEVEL > 1 67 char const * start = p; 68 #endif 69 70 // example: N3com3sun4star4lang24IllegalArgumentExceptionE 71 72 OUStringBuffer buf( 64 ); 73 OSL_ASSERT( 'N' == *p ); 74 ++p; // skip N 75 76 while ('E' != *p) 77 { 78 // read chars count 79 long n = (*p++ - '0'); 80 while ('0' <= *p && '9' >= *p) 81 { 82 n *= 10; 83 n += (*p++ - '0'); 84 } 85 buf.appendAscii( p, n ); 86 p += n; 87 if ('E' != *p) 88 buf.append( (sal_Unicode)'.' ); 89 } 90 91 #if OSL_DEBUG_LEVEL > 1 92 OUString ret( buf.makeStringAndClear() ); 93 OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) ); 94 fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() ); 95 return ret; 96 #else 97 return buf.makeStringAndClear(); 98 #endif 99 } 100 101 //================================================================================================== 102 class RTTI 103 { 104 typedef hash_map< OUString, type_info *, OUStringHash > t_rtti_map; 105 106 Mutex m_mutex; 107 t_rtti_map m_rttis; 108 t_rtti_map m_generatedRttis; 109 110 void * m_hApp; 111 112 public: 113 RTTI() SAL_THROW( () ); 114 ~RTTI() SAL_THROW( () ); 115 116 type_info * getRTTI( typelib_CompoundTypeDescription * ) SAL_THROW( () ); 117 }; 118 //__________________________________________________________________________________________________ 119 RTTI::RTTI() SAL_THROW( () ) 120 : m_hApp( dlopen( 0, RTLD_LAZY ) ) 121 { 122 } 123 //__________________________________________________________________________________________________ 124 RTTI::~RTTI() SAL_THROW( () ) 125 { 126 dlclose( m_hApp ); 127 } 128 129 //__________________________________________________________________________________________________ 130 type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW( () ) 131 { 132 type_info * rtti; 133 134 OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName; 135 136 MutexGuard guard( m_mutex ); 137 t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) ); 138 if (iFind == m_rttis.end()) 139 { 140 // RTTI symbol 141 OStringBuffer buf( 64 ); 142 buf.append( RTL_CONSTASCII_STRINGPARAM("_ZTIN") ); 143 sal_Int32 index = 0; 144 do 145 { 146 OUString token( unoName.getToken( 0, '.', index ) ); 147 buf.append( token.getLength() ); 148 OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) ); 149 buf.append( c_token ); 150 } 151 while (index >= 0); 152 buf.append( 'E' ); 153 154 OString symName( buf.makeStringAndClear() ); 155 rtti = (type_info *)dlsym( m_hApp, symName.getStr() ); 156 157 if (rtti) 158 { 159 pair< t_rtti_map::iterator, bool > insertion( 160 m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); 161 OSL_ENSURE( insertion.second, "### inserting new rtti failed?!" ); 162 } 163 else 164 { 165 // try to lookup the symbol in the generated rtti map 166 t_rtti_map::const_iterator iFind( m_generatedRttis.find( unoName ) ); 167 if (iFind == m_generatedRttis.end()) 168 { 169 // we must generate it ! 170 // symbol and rtti-name is nearly identical, 171 // the symbol is prefixed with _ZTI 172 char const * rttiName = symName.getStr() +4; 173 #if OSL_DEBUG_LEVEL > 1 174 fprintf( stderr,"generated rtti for %s\n", rttiName ); 175 #endif 176 if (pTypeDescr->pBaseTypeDescription) 177 { 178 // ensure availability of base 179 type_info * base_rtti = getRTTI( 180 (typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription ); 181 rtti = new __si_class_type_info( 182 strdup( rttiName ), (__class_type_info *)base_rtti ); 183 } 184 else 185 { 186 // this class has no base class 187 rtti = new __class_type_info( strdup( rttiName ) ); 188 } 189 190 pair< t_rtti_map::iterator, bool > insertion( 191 m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); 192 OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" ); 193 } 194 else // taking already generated rtti 195 { 196 rtti = iFind->second; 197 } 198 } 199 } 200 else 201 { 202 rtti = iFind->second; 203 } 204 205 return rtti; 206 } 207 208 //-------------------------------------------------------------------------------------------------- 209 static void deleteException( void * pExc ) 210 { 211 __cxa_exception const * header = ((__cxa_exception const *)pExc - 1); 212 typelib_TypeDescription * pTD = 0; 213 OUString unoName( toUNOname( header->exceptionType->name() ) ); 214 ::typelib_typedescription_getByName( &pTD, unoName.pData ); 215 OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" ); 216 if (pTD) 217 { 218 ::uno_destructData( pExc, pTD, cpp_release ); 219 ::typelib_typedescription_release( pTD ); 220 } 221 } 222 223 //================================================================================================== 224 void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ) 225 { 226 #if OSL_DEBUG_LEVEL > 1 227 OString cstr( 228 OUStringToOString( 229 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), 230 RTL_TEXTENCODING_ASCII_US ) ); 231 fprintf( stderr, "> uno exception occured: %s\n", cstr.getStr() ); 232 #endif 233 void * pCppExc; 234 type_info * rtti; 235 236 { 237 // construct cpp exception object 238 typelib_TypeDescription * pTypeDescr = 0; 239 TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType ); 240 OSL_ASSERT( pTypeDescr ); 241 if (! pTypeDescr) 242 { 243 throw RuntimeException( 244 OUString( RTL_CONSTASCII_USTRINGPARAM("cannot get typedescription for type ") ) + 245 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), 246 Reference< XInterface >() ); 247 } 248 249 pCppExc = __cxa_allocate_exception( pTypeDescr->nSize ); 250 ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp ); 251 252 // destruct uno exception 253 ::uno_any_destruct( pUnoExc, 0 ); 254 // avoiding locked counts 255 static RTTI * s_rtti = 0; 256 if (! s_rtti) 257 { 258 MutexGuard guard( Mutex::getGlobalMutex() ); 259 if (! s_rtti) 260 { 261 #ifdef LEAK_STATIC_DATA 262 s_rtti = new RTTI(); 263 #else 264 static RTTI rtti_data; 265 s_rtti = &rtti_data; 266 #endif 267 } 268 } 269 rtti = (type_info *)s_rtti->getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr ); 270 TYPELIB_DANGER_RELEASE( pTypeDescr ); 271 OSL_ENSURE( rtti, "### no rtti for throwing exception!" ); 272 if (! rtti) 273 { 274 throw RuntimeException( 275 OUString( RTL_CONSTASCII_USTRINGPARAM("no rtti for type ") ) + 276 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), 277 Reference< XInterface >() ); 278 } 279 } 280 281 __cxa_throw( pCppExc, rtti, deleteException ); 282 } 283 284 //================================================================================================== 285 void fillUnoException( __cxa_exception * header, uno_Any * pUnoExc, uno_Mapping * pCpp2Uno ) 286 { 287 if (! header) 288 { 289 RuntimeException aRE( 290 OUString( RTL_CONSTASCII_USTRINGPARAM("no exception header!") ), 291 Reference< XInterface >() ); 292 Type const & rType = ::getCppuType( &aRE ); 293 uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); 294 #if OSL_DEBUG_LEVEL > 0 295 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) ); 296 OSL_ENSURE( 0, cstr.getStr() ); 297 #endif 298 return; 299 } 300 301 typelib_TypeDescription * pExcTypeDescr = 0; 302 OUString unoName( toUNOname( header->exceptionType->name() ) ); 303 #if OSL_DEBUG_LEVEL > 1 304 OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) ); 305 fprintf( stderr, "> c++ exception occured: %s\n", cstr_unoName.getStr() ); 306 #endif 307 typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData ); 308 if (0 == pExcTypeDescr) 309 { 310 RuntimeException aRE( 311 OUString( RTL_CONSTASCII_USTRINGPARAM("exception type not found: ") ) + unoName, 312 Reference< XInterface >() ); 313 Type const & rType = ::getCppuType( &aRE ); 314 uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); 315 #if OSL_DEBUG_LEVEL > 0 316 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) ); 317 OSL_ENSURE( 0, cstr.getStr() ); 318 #endif 319 } 320 else 321 { 322 // construct uno exception any 323 uno_any_constructAndConvert( pUnoExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno ); 324 typelib_typedescription_release( pExcTypeDescr ); 325 } 326 } 327 328 } 329 330