1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_bridges.hxx"
26
27 #include <stdio.h>
28 #include <string.h>
29 #include <cxxabi.h>
30 #include <hash_map>
31
32 #include <rtl/strbuf.hxx>
33 #include <rtl/ustrbuf.hxx>
34 #include <osl/diagnose.h>
35 #include <osl/mutex.hxx>
36
37 #include <com/sun/star/uno/genfunc.hxx>
38 #include "com/sun/star/uno/RuntimeException.hpp"
39 #include <typelib/typedescription.hxx>
40 #include <uno/any2.h>
41
42 #include "share.hxx"
43
44
45 using namespace ::std;
46 using namespace ::osl;
47 using namespace ::rtl;
48 using namespace ::com::sun::star::uno;
49 using namespace ::__cxxabiv1;
50
51
52 namespace CPPU_CURRENT_NAMESPACE
53 {
54
dummy_can_throw_anything(char const *)55 void dummy_can_throw_anything( char const * )
56 {
57 }
58
59 //==================================================================================================
toUNOname(char const * p)60 static OUString toUNOname( char const * p ) SAL_THROW( () )
61 {
62 #if OSL_DEBUG_LEVEL > 1
63 char const * start = p;
64 #endif
65
66 // example: N3com3sun4star4lang24IllegalArgumentExceptionE
67
68 OUStringBuffer buf( 64 );
69 OSL_ASSERT( 'N' == *p );
70 ++p; // skip N
71
72 while ('E' != *p)
73 {
74 // read chars count
75 long n = (*p++ - '0');
76 while ('0' <= *p && '9' >= *p)
77 {
78 n *= 10;
79 n += (*p++ - '0');
80 }
81 buf.appendAscii( p, n );
82 p += n;
83 if ('E' != *p)
84 buf.append( (sal_Unicode)'.' );
85 }
86
87 #if OSL_DEBUG_LEVEL > 1
88 OUString ret( buf.makeStringAndClear() );
89 OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) );
90 fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() );
91 return ret;
92 #else
93 return buf.makeStringAndClear();
94 #endif
95 }
96
97 //==================================================================================================
98 class RTTI
99 {
100 typedef hash_map< OUString, type_info *, OUStringHash > t_rtti_map;
101
102 Mutex m_mutex;
103 t_rtti_map m_rttis;
104 t_rtti_map m_generatedRttis;
105
106 public:
107 RTTI() SAL_THROW( () );
108 ~RTTI() SAL_THROW( () );
109
110 type_info * getRTTI( typelib_CompoundTypeDescription * ) SAL_THROW( () );
111 };
112 //__________________________________________________________________________________________________
RTTI()113 RTTI::RTTI() SAL_THROW( () )
114 {
115 }
116 //__________________________________________________________________________________________________
~RTTI()117 RTTI::~RTTI() SAL_THROW( () )
118 {
119 }
120
121 //__________________________________________________________________________________________________
getRTTI(typelib_CompoundTypeDescription * pTypeDescr)122 type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW( () )
123 {
124 type_info * rtti;
125
126 OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName;
127
128 MutexGuard guard( m_mutex );
129 t_rtti_map::const_iterator iRttiFind( m_rttis.find( unoName ) );
130 if (iRttiFind == m_rttis.end())
131 {
132 // RTTI symbol
133 OStringBuffer buf( 64 );
134 buf.append( RTL_CONSTASCII_STRINGPARAM("__ZTIN") );
135 sal_Int32 index = 0;
136 do
137 {
138 OUString token( unoName.getToken( 0, '.', index ) );
139 buf.append( token.getLength() );
140 OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) );
141 buf.append( c_token );
142 }
143 while (index >= 0);
144 buf.append( 'E' );
145
146 OString symName( buf.makeStringAndClear() );
147 // try to lookup the symbol in the generated rtti map
148 t_rtti_map::const_iterator iFind( m_generatedRttis.find( unoName ) );
149 if (iFind == m_generatedRttis.end())
150 {
151 // we must generate it !
152 // symbol and rtti-name is nearly identical,
153 // the symbol is prefixed with __ZTI
154 char const * rttiName = symName.getStr() +5;
155 #if OSL_DEBUG_LEVEL > 1
156 fprintf( stderr,"generated rtti for %s\n", rttiName );
157 #endif
158 if (pTypeDescr->pBaseTypeDescription)
159 {
160 // ensure availability of base
161 type_info * base_rtti = getRTTI(
162 (typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription );
163 rtti = new __si_class_type_info(
164 strdup( rttiName ), (__class_type_info *)base_rtti );
165 }
166 else
167 {
168 // this class has no base class
169 rtti = new __class_type_info( strdup( rttiName ) );
170 }
171
172 pair< t_rtti_map::iterator, bool > insertion(
173 m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
174 OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" );
175 }
176 else // taking already generated rtti
177 {
178 rtti = iFind->second;
179 }
180 }
181 else
182 {
183 rtti = iRttiFind->second;
184 }
185
186 return rtti;
187 }
188
189 //--------------------------------------------------------------------------------------------------
deleteException(void * pExc)190 static void deleteException( void * pExc )
191 {
192 __cxa_exception const * header = ((__cxa_exception const *)pExc - 1);
193 typelib_TypeDescription * pTD = 0;
194 OUString unoName( toUNOname( header->exceptionType->name() ) );
195 ::typelib_typedescription_getByName( &pTD, unoName.pData );
196 OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" );
197 if (pTD)
198 {
199 ::uno_destructData( pExc, pTD, cpp_release );
200 ::typelib_typedescription_release( pTD );
201 }
202 }
203
204 //==================================================================================================
raiseException(uno_Any * pUnoExc,uno_Mapping * pUno2Cpp)205 void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp )
206 {
207 #if OSL_DEBUG_LEVEL > 1
208 OString cstr(
209 OUStringToOString(
210 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
211 RTL_TEXTENCODING_ASCII_US ) );
212 fprintf( stderr, "> uno exception occured: %s\n", cstr.getStr() );
213 #endif
214 void * pCppExc;
215 type_info * rtti;
216
217 {
218 // construct cpp exception object
219 typelib_TypeDescription * pTypeDescr = 0;
220 TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType );
221 OSL_ASSERT( pTypeDescr );
222 if (! pTypeDescr)
223 {
224 throw RuntimeException(
225 OUString( RTL_CONSTASCII_USTRINGPARAM("cannot get typedescription for type ") ) +
226 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
227 Reference< XInterface >() );
228 }
229
230 pCppExc = __cxa_allocate_exception( pTypeDescr->nSize );
231 ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp );
232
233 // destruct uno exception
234 ::uno_any_destruct( pUnoExc, 0 );
235 // avoiding locked counts
236 static RTTI * s_rtti = 0;
237 if (! s_rtti)
238 {
239 MutexGuard guard( Mutex::getGlobalMutex() );
240 if (! s_rtti)
241 {
242 #ifdef LEAK_STATIC_DATA
243 s_rtti = new RTTI();
244 #else
245 static RTTI rtti_data;
246 s_rtti = &rtti_data;
247 #endif
248 }
249 }
250 rtti = (type_info *)s_rtti->getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr );
251 TYPELIB_DANGER_RELEASE( pTypeDescr );
252 OSL_ENSURE( rtti, "### no rtti for throwing exception!" );
253 if (! rtti)
254 {
255 throw RuntimeException(
256 OUString( RTL_CONSTASCII_USTRINGPARAM("no rtti for type ") ) +
257 *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
258 Reference< XInterface >() );
259 }
260 }
261
262 __cxa_throw( pCppExc, rtti, deleteException );
263 }
264
265 //==================================================================================================
fillUnoException(__cxa_exception * header,uno_Any * pUnoExc,uno_Mapping * pCpp2Uno)266 void fillUnoException( __cxa_exception * header, uno_Any * pUnoExc, uno_Mapping * pCpp2Uno )
267 {
268 if (! header)
269 {
270 RuntimeException aRE(
271 OUString( RTL_CONSTASCII_USTRINGPARAM("no exception header!") ),
272 Reference< XInterface >() );
273 Type const & rType = ::getCppuType( &aRE );
274 uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno );
275 #if OSL_DEBUG_LEVEL > 0
276 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) );
277 OSL_ENSURE( 0, cstr.getStr() );
278 #endif
279 return;
280 }
281
282 typelib_TypeDescription * pExcTypeDescr = 0;
283 OUString unoName( toUNOname( header->exceptionType->name() ) );
284 #if OSL_DEBUG_LEVEL > 1
285 OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) );
286 fprintf( stderr, "> c++ exception occured: %s\n", cstr_unoName.getStr() );
287 #endif
288 typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData );
289 if (0 == pExcTypeDescr)
290 {
291 RuntimeException aRE(
292 OUString( RTL_CONSTASCII_USTRINGPARAM("exception type not found: ") ) + unoName,
293 Reference< XInterface >() );
294 Type const & rType = ::getCppuType( &aRE );
295 uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno );
296 #if OSL_DEBUG_LEVEL > 0
297 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) );
298 OSL_ENSURE( 0, cstr.getStr() );
299 #endif
300 }
301 else
302 {
303 // construct uno exception any
304 uno_any_constructAndConvert( pUnoExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno );
305 typelib_typedescription_release( pExcTypeDescr );
306 }
307 }
308
309 }
310
311