537 lines
18 KiB
C++
537 lines
18 KiB
C++
/*************************************************************************
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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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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_stoc.hxx"
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#include "osl/diagnose.h"
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#include "osl/interlck.h"
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#include "osl/doublecheckedlocking.h"
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#include "osl/mutex.hxx"
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#include "rtl/ref.hxx"
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#include "uno/dispatcher.hxx"
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#include "uno/data.h"
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#include "uno/mapping.hxx"
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#include "uno/environment.hxx"
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#include "typelib/typedescription.hxx"
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#include "cppuhelper/exc_hlp.hxx"
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#include "cppuhelper/implbase2.hxx"
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#include "cppuhelper/implementationentry.hxx"
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#include "cppuhelper/factory.hxx"
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#include "com/sun/star/lang/XServiceInfo.hpp"
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#include "com/sun/star/registry/XRegistryKey.hpp"
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#include "com/sun/star/reflection/XProxyFactory.hpp"
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#include "com/sun/star/uno/RuntimeException.hpp"
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#define OUSTR(x) ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(x) )
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#define SERVICE_NAME "com.sun.star.reflection.ProxyFactory"
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#define IMPL_NAME "com.sun.star.comp.reflection.ProxyFactory"
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using ::rtl::OUString;
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namespace
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{
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static rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;
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static OUString proxyfac_getImplementationName()
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{
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return OUSTR(IMPL_NAME);
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}
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static Sequence< OUString > proxyfac_getSupportedServiceNames()
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{
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OUString str_name = OUSTR(SERVICE_NAME);
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return Sequence< OUString >( &str_name, 1 );
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}
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//==============================================================================
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struct FactoryImpl : public ::cppu::WeakImplHelper2< lang::XServiceInfo,
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reflection::XProxyFactory >
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{
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Environment m_uno_env;
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Environment m_cpp_env;
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Mapping m_uno2cpp;
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Mapping m_cpp2uno;
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UnoInterfaceReference binuno_queryInterface(
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UnoInterfaceReference const & unoI,
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typelib_InterfaceTypeDescription * pTypeDescr );
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FactoryImpl();
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virtual ~FactoryImpl();
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// XServiceInfo
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virtual OUString SAL_CALL getImplementationName()
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throw (RuntimeException);
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virtual sal_Bool SAL_CALL supportsService( const OUString & rServiceName )
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throw (RuntimeException);
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virtual Sequence< OUString > SAL_CALL getSupportedServiceNames()
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throw (RuntimeException);
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// XProxyFactory
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virtual Reference< XAggregation > SAL_CALL createProxy(
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Reference< XInterface > const & xTarget )
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throw (RuntimeException);
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};
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//______________________________________________________________________________
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UnoInterfaceReference FactoryImpl::binuno_queryInterface(
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UnoInterfaceReference const & unoI,
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typelib_InterfaceTypeDescription * pTypeDescr )
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{
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// init queryInterface() td
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static typelib_TypeDescription * s_pQITD = 0;
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if (s_pQITD == 0)
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{
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::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
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if (s_pQITD == 0)
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{
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typelib_TypeDescription * pTXInterfaceDescr = 0;
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TYPELIB_DANGER_GET(
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&pTXInterfaceDescr,
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::getCppuType( reinterpret_cast< Reference< XInterface >
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const * >(0) ).getTypeLibType() );
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typelib_TypeDescription * pQITD = 0;
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typelib_typedescriptionreference_getDescription(
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&pQITD, reinterpret_cast< typelib_InterfaceTypeDescription * >(
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pTXInterfaceDescr )->ppAllMembers[ 0 ] );
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TYPELIB_DANGER_RELEASE( pTXInterfaceDescr );
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OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
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s_pQITD = pQITD;
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}
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}
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else
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{
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OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
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}
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void * args[ 1 ];
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args[ 0 ] = &reinterpret_cast< typelib_TypeDescription * >(
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pTypeDescr )->pWeakRef;
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uno_Any ret_val, exc_space;
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uno_Any * exc = &exc_space;
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unoI.dispatch( s_pQITD, &ret_val, args, &exc );
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if (exc == 0)
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{
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UnoInterfaceReference ret;
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if (ret_val.pType->eTypeClass == typelib_TypeClass_INTERFACE)
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{
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ret.set( *reinterpret_cast< uno_Interface ** >(ret_val.pData),
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SAL_NO_ACQUIRE );
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typelib_typedescriptionreference_release( ret_val.pType );
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}
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else
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{
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uno_any_destruct( &ret_val, 0 );
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}
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return ret;
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}
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else
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{
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// exception occured:
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OSL_ENSURE(
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typelib_typedescriptionreference_isAssignableFrom(
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::getCppuType( reinterpret_cast<
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RuntimeException const * >(0) ).getTypeLibType(),
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exc->pType ),
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"### RuntimeException expected!" );
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Any cpp_exc;
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uno_type_copyAndConvertData(
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&cpp_exc, exc, ::getCppuType( &cpp_exc ).getTypeLibType(),
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m_uno2cpp.get() );
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uno_any_destruct( exc, 0 );
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::cppu::throwException( cpp_exc );
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OSL_ASSERT( 0 ); // way of no return
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return UnoInterfaceReference(); // for dummy
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}
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}
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//==============================================================================
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struct ProxyRoot : public ::cppu::OWeakAggObject
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{
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// XAggregation
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virtual Any SAL_CALL queryAggregation( Type const & rType )
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throw (RuntimeException);
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virtual ~ProxyRoot();
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inline ProxyRoot( ::rtl::Reference< FactoryImpl > const & factory,
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Reference< XInterface > const & xTarget );
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::rtl::Reference< FactoryImpl > m_factory;
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private:
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UnoInterfaceReference m_target;
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};
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//==============================================================================
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struct binuno_Proxy : public uno_Interface
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{
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oslInterlockedCount m_nRefCount;
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::rtl::Reference< ProxyRoot > m_root;
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UnoInterfaceReference m_target;
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OUString m_oid;
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TypeDescription m_typeDescr;
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inline binuno_Proxy(
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::rtl::Reference< ProxyRoot > const & root,
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UnoInterfaceReference const & target,
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OUString const & oid, TypeDescription const & typeDescr );
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};
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extern "C"
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{
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//------------------------------------------------------------------------------
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static void SAL_CALL binuno_proxy_free(
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uno_ExtEnvironment * pEnv, void * pProxy )
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{
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(void) pEnv; // avoid warning about unused parameter
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binuno_Proxy * proxy = static_cast< binuno_Proxy * >(
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reinterpret_cast< uno_Interface * >( pProxy ) );
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OSL_ASSERT( proxy->m_root->m_factory->m_uno_env.get()->pExtEnv == pEnv );
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delete proxy;
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}
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//------------------------------------------------------------------------------
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static void SAL_CALL binuno_proxy_acquire( uno_Interface * pUnoI )
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{
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binuno_Proxy * that = static_cast< binuno_Proxy * >( pUnoI );
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if (osl_incrementInterlockedCount( &that->m_nRefCount ) == 1)
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{
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// rebirth of zombie
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uno_ExtEnvironment * uno_env =
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that->m_root->m_factory->m_uno_env.get()->pExtEnv;
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OSL_ASSERT( uno_env != 0 );
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(*uno_env->registerProxyInterface)(
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uno_env, reinterpret_cast< void ** >( &pUnoI ), binuno_proxy_free,
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that->m_oid.pData,
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reinterpret_cast< typelib_InterfaceTypeDescription * >(
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that->m_typeDescr.get() ) );
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OSL_ASSERT( that == static_cast< binuno_Proxy * >( pUnoI ) );
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}
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}
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//------------------------------------------------------------------------------
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static void SAL_CALL binuno_proxy_release( uno_Interface * pUnoI )
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{
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binuno_Proxy * that = static_cast< binuno_Proxy * >( pUnoI );
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if (osl_decrementInterlockedCount( &that->m_nRefCount ) == 0)
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{
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uno_ExtEnvironment * uno_env =
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that->m_root->m_factory->m_uno_env.get()->pExtEnv;
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OSL_ASSERT( uno_env != 0 );
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(*uno_env->revokeInterface)( uno_env, pUnoI );
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}
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}
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//------------------------------------------------------------------------------
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static void SAL_CALL binuno_proxy_dispatch(
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uno_Interface * pUnoI, const typelib_TypeDescription * pMemberType,
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void * pReturn, void * pArgs [], uno_Any ** ppException )
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{
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binuno_Proxy * that = static_cast< binuno_Proxy * >( pUnoI );
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switch (reinterpret_cast< typelib_InterfaceMemberTypeDescription const * >(
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pMemberType )->nPosition)
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{
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case 0: // queryInterface()
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{
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try
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{
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Type const & rType =
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*reinterpret_cast< Type const * >( pArgs[ 0 ] );
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Any ret( that->m_root->queryInterface( rType ) );
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uno_type_copyAndConvertData(
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pReturn, &ret, ::getCppuType( &ret ).getTypeLibType(),
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that->m_root->m_factory->m_cpp2uno.get() );
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*ppException = 0; // no exc
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}
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catch (RuntimeException &)
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{
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Any exc( ::cppu::getCaughtException() );
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uno_type_any_constructAndConvert(
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*ppException, const_cast< void * >(exc.getValue()),
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exc.getValueTypeRef(),
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that->m_root->m_factory->m_cpp2uno.get() );
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}
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break;
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}
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case 1: // acquire()
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binuno_proxy_acquire( pUnoI );
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*ppException = 0; // no exc
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break;
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case 2: // release()
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binuno_proxy_release( pUnoI );
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*ppException = 0; // no exc
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break;
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default:
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that->m_target.dispatch( pMemberType, pReturn, pArgs, ppException );
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break;
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}
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}
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}
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//______________________________________________________________________________
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inline binuno_Proxy::binuno_Proxy(
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::rtl::Reference< ProxyRoot > const & root,
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UnoInterfaceReference const & target,
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OUString const & oid, TypeDescription const & typeDescr )
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: m_nRefCount( 1 ),
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m_root( root ),
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m_target( target ),
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m_oid( oid ),
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m_typeDescr( typeDescr )
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{
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uno_Interface::acquire = binuno_proxy_acquire;
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uno_Interface::release = binuno_proxy_release;
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uno_Interface::pDispatcher = binuno_proxy_dispatch;
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}
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//______________________________________________________________________________
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ProxyRoot::~ProxyRoot()
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{
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}
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//______________________________________________________________________________
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inline ProxyRoot::ProxyRoot(
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::rtl::Reference< FactoryImpl > const & factory,
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Reference< XInterface > const & xTarget )
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: m_factory( factory )
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{
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m_factory->m_cpp2uno.mapInterface(
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reinterpret_cast< void ** >( &m_target.m_pUnoI ), xTarget.get(),
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::getCppuType( &xTarget ) );
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OSL_ENSURE( m_target.is(), "### mapping interface failed!" );
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}
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//______________________________________________________________________________
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Any ProxyRoot::queryAggregation( Type const & rType )
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throw (RuntimeException)
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{
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Any ret( OWeakAggObject::queryAggregation( rType ) );
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if (! ret.hasValue())
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{
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typelib_TypeDescription * pTypeDescr = 0;
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TYPELIB_DANGER_GET( &pTypeDescr, rType.getTypeLibType() );
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try
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{
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Reference< XInterface > xProxy;
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uno_ExtEnvironment * cpp_env = m_factory->m_cpp_env.get()->pExtEnv;
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OSL_ASSERT( cpp_env != 0 );
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// mind a new delegator, calculate current root:
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Reference< XInterface > xRoot(
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static_cast< OWeakObject * >(this), UNO_QUERY_THROW );
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OUString oid;
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(*cpp_env->getObjectIdentifier)( cpp_env, &oid.pData, xRoot.get() );
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OSL_ASSERT( oid.getLength() > 0 );
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(*cpp_env->getRegisteredInterface)(
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cpp_env, reinterpret_cast< void ** >( &xProxy ),
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oid.pData, reinterpret_cast<
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typelib_InterfaceTypeDescription * >(pTypeDescr) );
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if (! xProxy.is())
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{
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// perform query on target:
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UnoInterfaceReference proxy_target(
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m_factory->binuno_queryInterface(
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m_target, reinterpret_cast<
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typelib_InterfaceTypeDescription * >(pTypeDescr) ) );
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if (proxy_target.is())
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{
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// ensure root's object entries:
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UnoInterfaceReference root;
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m_factory->m_cpp2uno.mapInterface(
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reinterpret_cast< void ** >( &root.m_pUnoI ),
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xRoot.get(), ::getCppuType( &xRoot ) );
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UnoInterfaceReference proxy(
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// ref count initially 1:
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new binuno_Proxy( this, proxy_target, oid, pTypeDescr ),
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SAL_NO_ACQUIRE );
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uno_ExtEnvironment * uno_env =
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m_factory->m_uno_env.get()->pExtEnv;
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OSL_ASSERT( uno_env != 0 );
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(*uno_env->registerProxyInterface)(
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uno_env, reinterpret_cast< void ** >( &proxy.m_pUnoI ),
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binuno_proxy_free, oid.pData,
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reinterpret_cast< typelib_InterfaceTypeDescription * >(
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pTypeDescr ) );
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m_factory->m_uno2cpp.mapInterface(
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reinterpret_cast< void ** >( &xProxy ),
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proxy.get(), pTypeDescr );
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}
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}
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if (xProxy.is())
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ret.setValue( &xProxy, pTypeDescr );
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}
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catch (...) // finally
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{
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TYPELIB_DANGER_RELEASE( pTypeDescr );
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throw;
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}
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TYPELIB_DANGER_RELEASE( pTypeDescr );
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}
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return ret;
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}
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//##############################################################################
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//______________________________________________________________________________
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FactoryImpl::FactoryImpl()
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{
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OUString uno = OUSTR(UNO_LB_UNO);
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OUString cpp = OUSTR(CPPU_CURRENT_LANGUAGE_BINDING_NAME);
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uno_getEnvironment(
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reinterpret_cast< uno_Environment ** >( &m_uno_env ), uno.pData, 0 );
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OSL_ENSURE( m_uno_env.is(), "### cannot get binary uno env!" );
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uno_getEnvironment(
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reinterpret_cast< uno_Environment ** >( &m_cpp_env ), cpp.pData, 0 );
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OSL_ENSURE( m_cpp_env.is(), "### cannot get C++ uno env!" );
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uno_getMapping(
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reinterpret_cast< uno_Mapping ** >( &m_uno2cpp ),
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m_uno_env.get(), m_cpp_env.get(), 0 );
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OSL_ENSURE( m_uno2cpp.is(), "### cannot get bridge uno <-> C++!" );
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uno_getMapping(
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reinterpret_cast< uno_Mapping ** >( &m_cpp2uno ),
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m_cpp_env.get(), m_uno_env.get(), 0 );
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OSL_ENSURE( m_cpp2uno.is(), "### cannot get bridge C++ <-> uno!" );
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g_moduleCount.modCnt.acquire( &g_moduleCount.modCnt );
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}
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//______________________________________________________________________________
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FactoryImpl::~FactoryImpl()
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{
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g_moduleCount.modCnt.release( &g_moduleCount.modCnt );
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}
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// XProxyFactory
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//______________________________________________________________________________
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Reference< XAggregation > FactoryImpl::createProxy(
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Reference< XInterface > const & xTarget )
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throw (RuntimeException)
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{
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return new ProxyRoot( this, xTarget );
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}
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// XServiceInfo
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//______________________________________________________________________________
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OUString FactoryImpl::getImplementationName()
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throw (RuntimeException)
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{
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return proxyfac_getImplementationName();;
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}
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//______________________________________________________________________________
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sal_Bool FactoryImpl::supportsService( const OUString & rServiceName )
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throw (RuntimeException)
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{
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Sequence< OUString > const & rSNL = getSupportedServiceNames();
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OUString const * pArray = rSNL.getConstArray();
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for ( sal_Int32 nPos = rSNL.getLength(); nPos--; )
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{
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if (rServiceName.equals( pArray[ nPos ] ))
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return true;
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}
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return false;
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}
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//______________________________________________________________________________
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Sequence< OUString > FactoryImpl::getSupportedServiceNames()
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throw(::com::sun::star::uno::RuntimeException)
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{
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return proxyfac_getSupportedServiceNames();
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}
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//==============================================================================
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static Reference< XInterface > SAL_CALL proxyfac_create(
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Reference< XComponentContext > const & )
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throw (Exception)
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{
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Reference< XInterface > xRet;
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{
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::osl::MutexGuard guard( ::osl::Mutex::getGlobalMutex() );
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static WeakReference < XInterface > rwInstance;
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xRet = rwInstance;
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if (! xRet.is())
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{
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xRet = static_cast< ::cppu::OWeakObject * >(new FactoryImpl);
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rwInstance = xRet;
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}
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}
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return xRet;
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}
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static ::cppu::ImplementationEntry g_entries [] =
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{
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{
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proxyfac_create, proxyfac_getImplementationName,
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|
proxyfac_getSupportedServiceNames, ::cppu::createSingleComponentFactory,
|
|
&g_moduleCount.modCnt, 0
|
|
},
|
|
{ 0, 0, 0, 0, 0, 0 }
|
|
};
|
|
|
|
}
|
|
|
|
extern "C"
|
|
{
|
|
|
|
sal_Bool SAL_CALL component_canUnload( TimeValue * pTime )
|
|
{
|
|
return g_moduleCount.canUnload( &g_moduleCount, pTime );
|
|
}
|
|
|
|
void SAL_CALL component_getImplementationEnvironment(
|
|
const sal_Char ** ppEnvTypeName, uno_Environment ** )
|
|
{
|
|
*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
|
|
}
|
|
|
|
void * SAL_CALL component_getFactory(
|
|
const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
|
|
{
|
|
return ::cppu::component_getFactoryHelper(
|
|
pImplName, pServiceManager, pRegistryKey, g_entries );
|
|
}
|
|
|
|
}
|
|
|