381 lines
13 KiB
C++
381 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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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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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1070
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#include <cxxabi.h>
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#else
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#include <typeinfo>
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#endif
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#include <boost/unordered_map.hpp>
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#include <rtl/instance.hxx>
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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 <com/sun/star/uno/genfunc.hxx>
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#include "com/sun/star/uno/RuntimeException.hpp"
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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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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1070
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using namespace ::__cxxabiv1;
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#endif
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namespace CPPU_CURRENT_NAMESPACE
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{
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#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
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// MacOSX10.4u.sdk/usr/include/c++/4.0.0/cxxabi.h defined
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// __cxxabiv1::__class_type_info and __cxxabiv1::__si_class_type_info but
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// MacOSX10.7.sdk/usr/include/cxxabi.h no longer does, so instances of those
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// classes need to be created manually:
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// std::type_info defined in <typeinfo> offers a protected ctor:
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struct FAKE_type_info: public std::type_info {
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FAKE_type_info(char const * name): type_info(name) {}
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};
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// Modeled after __cxxabiv1::__si_class_type_info defined in
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// MacOSX10.4u.sdk/usr/include/c++/4.0.0/cxxabi.h (i.e.,
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// abi::__si_class_type_info documented at
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// <http://www.codesourcery.com/public/cxx-abi/abi.html#rtti>):
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struct FAKE_si_class_type_info: public FAKE_type_info {
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FAKE_si_class_type_info(char const * name, std::type_info const * theBase):
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FAKE_type_info(name), base(theBase) {}
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std::type_info const * base;
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// actually a __cxxabiv1::__class_type_info pointer
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};
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struct Base {};
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struct Derived: Base {};
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std::type_info * create_FAKE_class_type_info(char const * name) {
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std::type_info * p = new FAKE_type_info(name);
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// cxxabiv1::__class_type_info has no data members in addition to
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// std::type_info
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*reinterpret_cast< void ** >(p) = *reinterpret_cast< void * const * >(
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&typeid(Base));
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// copy correct __cxxabiv1::__class_type_info vtable into place
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return p;
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}
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std::type_info * create_FAKE_si_class_type_info(
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char const * name, std::type_info const * base)
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{
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std::type_info * p = new FAKE_si_class_type_info(name, base);
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*reinterpret_cast< void ** >(p) = *reinterpret_cast< void * const * >(
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&typeid(Derived));
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// copy correct __cxxabiv1::__si_class_type_info vtable into place
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return p;
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}
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#endif
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void dummy_can_throw_anything( char const * )
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{
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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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#if OSL_DEBUG_LEVEL > 1
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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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#if OSL_DEBUG_LEVEL > 1
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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 boost::unordered_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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t_rtti_map m_generatedRttis;
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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( typelib_CompoundTypeDescription * ) 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( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW(())
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{
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type_info * rtti;
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OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName;
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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 symName( buf.makeStringAndClear() );
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rtti = (type_info *)dlsym( m_hApp, symName.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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// try to lookup the symbol in the generated rtti map
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t_rtti_map::const_iterator iFind2( m_generatedRttis.find( unoName ) );
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if (iFind2 == m_generatedRttis.end())
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{
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// we must generate it !
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// symbol and rtti-name is nearly identical,
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// the symbol is prefixed with _ZTI
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char const * rttiName = symName.getStr() +4;
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr,"generated rtti for %s\n", rttiName );
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#endif
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if (pTypeDescr->pBaseTypeDescription)
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{
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// ensure availability of base
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type_info * base_rtti = getRTTI(
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(typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription );
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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1070
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rtti = new __si_class_type_info(
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strdup( rttiName ), (__class_type_info *)base_rtti );
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#else
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rtti = create_FAKE_si_class_type_info(
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strdup( rttiName ), base_rtti );
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#endif
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}
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else
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{
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// this class has no base class
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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1070
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rtti = new __class_type_info( strdup( rttiName ) );
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#else
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rtti = create_FAKE_class_type_info( strdup( rttiName ) );
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#endif
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}
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pair< t_rtti_map::iterator, bool > insertion(
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m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
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OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" );
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}
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else // taking already generated rtti
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{
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rtti = iFind2->second;
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}
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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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struct RTTISingleton: public rtl::Static< RTTI, RTTISingleton > {};
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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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#if OSL_DEBUG_LEVEL > 1
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OString cstr(
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OUStringToOString(
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*reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
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RTL_TEXTENCODING_ASCII_US ) );
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fprintf( stderr, "> uno exception occurred: %s\n", cstr.getStr() );
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#endif
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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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{
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throw RuntimeException(
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OUString( RTL_CONSTASCII_USTRINGPARAM("cannot get typedescription for type ") ) +
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*reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
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Reference< XInterface >() );
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}
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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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rtti = (type_info *)RTTISingleton::get().getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr );
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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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{
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throw RuntimeException(
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OUString( RTL_CONSTASCII_USTRINGPARAM("no rtti for type ") ) +
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*reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ),
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Reference< XInterface >() );
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}
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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 * pUnoExc, uno_Mapping * pCpp2Uno )
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{
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if (! header)
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{
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RuntimeException aRE(
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OUString( RTL_CONSTASCII_USTRINGPARAM("no exception header!") ),
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Reference< XInterface >() );
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Type const & rType = ::getCppuType( &aRE );
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uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno );
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#if OSL_DEBUG_LEVEL > 0
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OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) );
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OSL_FAIL( cstr.getStr() );
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#endif
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return;
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}
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typelib_TypeDescription * pExcTypeDescr = 0;
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OUString unoName( toUNOname( header->exceptionType->name() ) );
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#if OSL_DEBUG_LEVEL > 1
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OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) );
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fprintf( stderr, "> c++ exception occurred: %s\n", cstr_unoName.getStr() );
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#endif
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typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData );
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if (0 == pExcTypeDescr)
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{
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RuntimeException aRE(
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OUString( RTL_CONSTASCII_USTRINGPARAM("exception type not found: ") ) + unoName,
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Reference< XInterface >() );
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Type const & rType = ::getCppuType( &aRE );
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uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno );
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#if OSL_DEBUG_LEVEL > 0
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OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) );
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OSL_FAIL( cstr.getStr() );
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#endif
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}
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else
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{
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// construct uno exception any
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uno_any_constructAndConvert( pUnoExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno );
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typelib_typedescription_release( pExcTypeDescr );
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}
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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