284 lines
8.6 KiB
C++
284 lines
8.6 KiB
C++
/*************************************************************************
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*
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* $RCSfile: except.cxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: dbo $ $Date: 2001-10-22 11:33:49 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#include <stdio.h>
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#include <dlfcn.h>
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#include <hash_map>
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#include <rtl/strbuf.hxx>
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#include <rtl/ustrbuf.hxx>
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#include <osl/diagnose.h>
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#include <osl/mutex.hxx>
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#include <bridges/cpp_uno/bridge.hxx>
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#include <typelib/typedescription.hxx>
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#include <uno/any2.h>
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#include "share.hxx"
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using namespace ::std;
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using namespace ::osl;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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using namespace ::__cxxabiv1;
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namespace CPPU_CURRENT_NAMESPACE
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{
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//==================================================================================================
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static OUString toUNOname( char const * p ) SAL_THROW( () )
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{
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#ifdef DEBUG
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char const * start = p;
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#endif
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// example: N3com3sun4star4lang24IllegalArgumentExceptionE
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OUStringBuffer buf( 64 );
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OSL_ASSERT( 'N' == *p );
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++p; // skip N
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while ('E' != *p)
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{
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// read chars count
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long n = (*p++ - '0');
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while ('0' <= *p && '9' >= *p)
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{
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n *= 10;
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n += (*p++ - '0');
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}
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buf.appendAscii( p, n );
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p += n;
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if ('E' != *p)
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buf.append( (sal_Unicode)'.' );
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}
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#ifdef DEBUG
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OUString ret( buf.makeStringAndClear() );
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OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) );
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fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() );
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return ret;
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#else
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return buf.makeStringAndClear();
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#endif
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}
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//==================================================================================================
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class RTTI
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{
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typedef hash_map< OUString, type_info *, OUStringHash > t_rtti_map;
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Mutex m_mutex;
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t_rtti_map m_rttis;
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void * m_hApp;
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public:
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RTTI() SAL_THROW( () );
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~RTTI() SAL_THROW( () );
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type_info * getRTTI( OUString const & unoName ) SAL_THROW( () );
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};
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//__________________________________________________________________________________________________
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RTTI::RTTI() SAL_THROW( () )
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: m_hApp( dlopen( 0, RTLD_LAZY ) )
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{
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}
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//__________________________________________________________________________________________________
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RTTI::~RTTI() SAL_THROW( () )
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{
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dlclose( m_hApp );
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}
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//__________________________________________________________________________________________________
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type_info * RTTI::getRTTI( OUString const & unoName ) SAL_THROW( () )
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{
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type_info * rtti;
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MutexGuard guard( m_mutex );
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t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) );
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if (iFind == m_rttis.end())
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{
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// RTTI symbol
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OStringBuffer buf( 64 );
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buf.append( RTL_CONSTASCII_STRINGPARAM("_ZTIN") );
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sal_Int32 index = 0;
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do
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{
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OUString token( unoName.getToken( 0, '.', index ) );
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buf.append( token.getLength() );
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OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) );
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buf.append( c_token );
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}
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while (index >= 0);
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buf.append( 'E' );
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OString rttiName( buf.makeStringAndClear() );
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rtti = (type_info *)dlsym( m_hApp, rttiName.getStr() );
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if (rtti)
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{
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pair< t_rtti_map::iterator, bool > insertion(
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m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
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OSL_ENSURE( insertion.second, "### inserting new rtti failed?!" );
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}
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else
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{
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#ifdef _DEBUG
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OStringBuffer buf( 64 );
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buf.append( "rtti symbol not found: " );
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buf.append( rttiName );
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OString msg( buf.makeStringAndClear() );
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OSL_ENSURE( 0, msg.getStr() );
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#endif
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rtti = 0;
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}
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}
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else
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{
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rtti = iFind->second;
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}
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return rtti;
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}
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//--------------------------------------------------------------------------------------------------
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static void deleteException( void * pExc )
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{
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__cxa_exception const * header = ((__cxa_exception const *)pExc - 1);
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typelib_TypeDescription * pTD = 0;
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OUString unoName( toUNOname( header->exceptionType->name() ) );
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::typelib_typedescription_getByName( &pTD, unoName.pData );
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OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" );
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if (pTD)
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{
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::uno_destructData( pExc, pTD, cpp_release );
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::typelib_typedescription_release( pTD );
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}
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}
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//==================================================================================================
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void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp )
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{
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void * pCppExc;
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type_info * rtti;
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{
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// construct cpp exception object
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typelib_TypeDescription * pTypeDescr = 0;
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TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType );
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OSL_ASSERT( pTypeDescr );
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if (! pTypeDescr)
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terminate();
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pCppExc = __cxa_allocate_exception( pTypeDescr->nSize );
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::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp );
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// destruct uno exception
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::uno_any_destruct( pUnoExc, 0 );
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// avoiding locked counts
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OUString const & unoName = *(OUString const *)&pTypeDescr->pTypeName;
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static RTTI * s_rtti = 0;
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if (! s_rtti)
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{
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MutexGuard guard( Mutex::getGlobalMutex() );
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if (! s_rtti)
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{
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#ifdef LEAK_STATIC_DATA
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s_rtti = new RTTI();
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#else
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static RTTI rtti_data;
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s_rtti = &rtti_data;
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#endif
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}
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}
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rtti = (type_info *)s_rtti->getRTTI( unoName );
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TYPELIB_DANGER_RELEASE( pTypeDescr );
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OSL_ENSURE( rtti, "### no rtti for throwing exception!" );
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if (! rtti)
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terminate();
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}
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__cxa_throw( pCppExc, rtti, deleteException );
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}
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//==================================================================================================
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void fillUnoException( __cxa_exception * header, uno_Any * pExc, uno_Mapping * pCpp2Uno )
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{
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OSL_ENSURE( header, "### no exception header!!!" );
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if (! header)
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terminate();
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typelib_TypeDescription * pExcTypeDescr = 0;
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OUString unoName( toUNOname( header->exceptionType->name() ) );
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::typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData );
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OSL_ENSURE( pExcTypeDescr, "### can not get type description for exception!!!" );
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if (! pExcTypeDescr)
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terminate();
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// construct uno exception any
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::uno_any_constructAndConvert( pExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno );
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::typelib_typedescription_release( pExcTypeDescr );
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}
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}
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