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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 <dlfcn.h>
29 #include <cxxabi.h>
30 #include <hash_map>
31 #include <sys/param.h>
32 
33 #include <rtl/strbuf.hxx>
34 #include <rtl/ustrbuf.hxx>
35 #include <osl/diagnose.h>
36 #include <osl/mutex.hxx>
37 
38 #include <com/sun/star/uno/genfunc.hxx>
39 #include "com/sun/star/uno/RuntimeException.hpp"
40 #include <typelib/typedescription.hxx>
41 #include <uno/any2.h>
42 
43 #include "share.hxx"
44 
45 
46 using namespace ::std;
47 using namespace ::osl;
48 using namespace ::rtl;
49 using namespace ::com::sun::star::uno;
50 using namespace ::__cxxabiv1;
51 
52 
53 namespace CPPU_CURRENT_NAMESPACE
54 {
55 
56 void dummy_can_throw_anything( char const * )
57 {
58 }
59 
60 //==================================================================================================
61 static OUString toUNOname( char const * p ) SAL_THROW( () )
62 {
63 #if OSL_DEBUG_LEVEL > 1
64     char const * start = p;
65 #endif
66 
67     // example: N3com3sun4star4lang24IllegalArgumentExceptionE
68 
69 	OUStringBuffer buf( 64 );
70     OSL_ASSERT( 'N' == *p );
71     ++p; // skip N
72 
73     while ('E' != *p)
74     {
75         // read chars count
76         long n = (*p++ - '0');
77         while ('0' <= *p && '9' >= *p)
78         {
79             n *= 10;
80             n += (*p++ - '0');
81         }
82         buf.appendAscii( p, n );
83         p += n;
84         if ('E' != *p)
85             buf.append( (sal_Unicode)'.' );
86     }
87 
88 #if OSL_DEBUG_LEVEL > 1
89     OUString ret( buf.makeStringAndClear() );
90     OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) );
91     fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() );
92     return ret;
93 #else
94     return buf.makeStringAndClear();
95 #endif
96 }
97 
98 //==================================================================================================
99 class RTTI
100 {
101     typedef hash_map< OUString, type_info *, OUStringHash > t_rtti_map;
102 
103     Mutex m_mutex;
104 	t_rtti_map m_rttis;
105     t_rtti_map m_generatedRttis;
106 
107     void * m_hApp;
108 
109 public:
110     RTTI() SAL_THROW( () );
111     ~RTTI() SAL_THROW( () );
112 
113     type_info * getRTTI( typelib_CompoundTypeDescription * ) SAL_THROW( () );
114 };
115 //__________________________________________________________________________________________________
116 RTTI::RTTI() SAL_THROW( () )
117 #if __FreeBSD_version < 602103
118     : m_hApp( dlopen( 0, RTLD_NOW | RTLD_GLOBAL ) )
119 #else
120     : m_hApp( dlopen( 0, RTLD_LAZY ) )
121 #endif
122 {
123 }
124 //__________________________________________________________________________________________________
125 RTTI::~RTTI() SAL_THROW( () )
126 {
127     dlclose( m_hApp );
128 }
129 
130 //__________________________________________________________________________________________________
131 type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW( () )
132 {
133     type_info * rtti;
134 
135     OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName;
136 
137     MutexGuard guard( m_mutex );
138     t_rtti_map::const_iterator iRttiFind( m_rttis.find( unoName ) );
139     if (iRttiFind == m_rttis.end())
140     {
141         // RTTI symbol
142         OStringBuffer buf( 64 );
143         buf.append( RTL_CONSTASCII_STRINGPARAM("_ZTIN") );
144         sal_Int32 index = 0;
145         do
146         {
147             OUString token( unoName.getToken( 0, '.', index ) );
148             buf.append( token.getLength() );
149             OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) );
150             buf.append( c_token );
151         }
152         while (index >= 0);
153         buf.append( 'E' );
154 
155         OString symName( buf.makeStringAndClear() );
156 #if __FreeBSD_version < 602103 /* #i22253# */
157         rtti = (type_info *)dlsym( RTLD_DEFAULT, symName.getStr() );
158 #else
159         rtti = (type_info *)dlsym( m_hApp, symName.getStr() );
160 #endif
161 
162         if (rtti)
163         {
164             pair< t_rtti_map::iterator, bool > insertion(
165                 m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
166             OSL_ENSURE( insertion.second, "### inserting new rtti failed?!" );
167         }
168         else
169         {
170             // try to lookup the symbol in the generated rtti map
171             t_rtti_map::const_iterator iFind( m_generatedRttis.find( unoName ) );
172             if (iFind == m_generatedRttis.end())
173             {
174                 // we must generate it !
175                 // symbol and rtti-name is nearly identical,
176                 // the symbol is prefixed with _ZTI
177                 char const * rttiName = symName.getStr() +4;
178 #if OSL_DEBUG_LEVEL > 1
179                 fprintf( stderr,"generated rtti for %s\n", rttiName );
180 #endif
181                 if (pTypeDescr->pBaseTypeDescription)
182                 {
183                     // ensure availability of base
184                     type_info * base_rtti = getRTTI(
185                         (typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription );
186                     rtti = new __si_class_type_info(
187                         strdup( rttiName ), (__class_type_info *)base_rtti );
188                 }
189                 else
190                 {
191                     // this class has no base class
192                     rtti = new __class_type_info( strdup( rttiName ) );
193                 }
194 
195                 pair< t_rtti_map::iterator, bool > insertion(
196                     m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
197                 OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" );
198             }
199             else // taking already generated rtti
200             {
201                 rtti = iFind->second;
202             }
203         }
204     }
205     else
206     {
207         rtti = iRttiFind->second;
208     }
209 
210     return rtti;
211 }
212 
213 //--------------------------------------------------------------------------------------------------
214 static void deleteException( void * pExc )
215 {
216     __cxa_exception const * header = ((__cxa_exception const *)pExc - 1);
217     typelib_TypeDescription * pTD = 0;
218     OUString unoName( toUNOname( header->exceptionType->name() ) );
219     ::typelib_typedescription_getByName( &pTD, unoName.pData );
220     OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" );
221     if (pTD)
222     {
223 		::uno_destructData( pExc, pTD, cpp_release );
224 		::typelib_typedescription_release( pTD );
225 	}
226 }
227 
228 //==================================================================================================
229 void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp )
230 {
231 #if OSL_DEBUG_LEVEL > 1
232     OString cstr(
233         OUStringToOString(
234             *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
235             RTL_TEXTENCODING_ASCII_US ) );
236     fprintf( stderr, "> uno exception occured: %s\n", cstr.getStr() );
237 #endif
238     void * pCppExc;
239     type_info * rtti;
240 
241     {
242     // construct cpp exception object
243 	typelib_TypeDescription * pTypeDescr = 0;
244 	TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType );
245     OSL_ASSERT( pTypeDescr );
246     if (! pTypeDescr)
247     {
248         throw RuntimeException(
249             OUString( RTL_CONSTASCII_USTRINGPARAM("cannot get typedescription for type ") ) +
250             *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
251             Reference< XInterface >() );
252     }
253 
254 	pCppExc = __cxa_allocate_exception( pTypeDescr->nSize );
255 	::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp );
256 
257 	// destruct uno exception
258 	::uno_any_destruct( pUnoExc, 0 );
259     // avoiding locked counts
260     static RTTI * s_rtti = 0;
261     if (! s_rtti)
262     {
263         MutexGuard guard( Mutex::getGlobalMutex() );
264         if (! s_rtti)
265         {
266 #ifdef LEAK_STATIC_DATA
267             s_rtti = new RTTI();
268 #else
269             static RTTI rtti_data;
270             s_rtti = &rtti_data;
271 #endif
272         }
273     }
274 	rtti = (type_info *)s_rtti->getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr );
275     TYPELIB_DANGER_RELEASE( pTypeDescr );
276     OSL_ENSURE( rtti, "### no rtti for throwing exception!" );
277     if (! rtti)
278     {
279         throw RuntimeException(
280             OUString( RTL_CONSTASCII_USTRINGPARAM("no rtti for type ") ) +
281             *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
282             Reference< XInterface >() );
283     }
284     }
285 
286 	__cxa_throw( pCppExc, rtti, deleteException );
287 }
288 
289 //==================================================================================================
290 void fillUnoException( __cxa_exception * header, uno_Any * pUnoExc, uno_Mapping * pCpp2Uno )
291 {
292     if (! header)
293     {
294         RuntimeException aRE(
295             OUString( RTL_CONSTASCII_USTRINGPARAM("no exception header!") ),
296             Reference< XInterface >() );
297         Type const & rType = ::getCppuType( &aRE );
298         uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno );
299 #if OSL_DEBUG_LEVEL > 0
300         OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) );
301         OSL_ENSURE( 0, cstr.getStr() );
302 #endif
303         return;
304     }
305 
306 	typelib_TypeDescription * pExcTypeDescr = 0;
307     OUString unoName( toUNOname( header->exceptionType->name() ) );
308 #if OSL_DEBUG_LEVEL > 1
309     OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) );
310     fprintf( stderr, "> c++ exception occured: %s\n", cstr_unoName.getStr() );
311 #endif
312 	typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData );
313     if (0 == pExcTypeDescr)
314     {
315         RuntimeException aRE(
316             OUString( RTL_CONSTASCII_USTRINGPARAM("exception type not found: ") ) + unoName,
317             Reference< XInterface >() );
318         Type const & rType = ::getCppuType( &aRE );
319         uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno );
320 #if OSL_DEBUG_LEVEL > 0
321         OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) );
322         OSL_ENSURE( 0, cstr.getStr() );
323 #endif
324     }
325     else
326     {
327         // construct uno exception any
328         uno_any_constructAndConvert( pUnoExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno );
329         typelib_typedescription_release( pExcTypeDescr );
330     }
331 }
332 
333 }
334 
335