eab4993eab
Change-Id: I736032df48cb491508c27cbe773b964d1d2359b0 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92482 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
210 lines
6.1 KiB
C++
210 lines
6.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <bridge.hxx>
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#include <cppinterfaceproxy.hxx>
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#include <unointerfaceproxy.hxx>
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#include <com/sun/star/uno/XInterface.hpp>
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#include <rtl/ustring.h>
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#include <sal/types.h>
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#include <typelib/typedescription.h>
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#include <uno/dispatcher.h>
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#include <uno/environment.h>
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#include <uno/mapping.h>
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namespace bridges::cpp_uno::shared {
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void freeMapping(uno_Mapping * pMapping)
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{
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delete static_cast< Bridge::Mapping * >( pMapping )->pBridge;
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}
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void acquireMapping(uno_Mapping * pMapping)
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{
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static_cast< Bridge::Mapping * >( pMapping )->pBridge->acquire();
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}
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void releaseMapping(uno_Mapping * pMapping)
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{
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static_cast< Bridge::Mapping * >( pMapping )->pBridge->release();
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}
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void cpp2unoMapping(
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uno_Mapping * pMapping, void ** ppUnoI, void * pCppI,
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typelib_InterfaceTypeDescription * pTypeDescr)
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{
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assert(ppUnoI && pTypeDescr);
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if (*ppUnoI)
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{
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(*static_cast< uno_Interface * >( *ppUnoI )->release)(
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static_cast< uno_Interface * >( *ppUnoI ) );
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*ppUnoI = nullptr;
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}
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if (!pCppI)
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return;
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Bridge * pBridge = static_cast< Bridge::Mapping * >( pMapping )->pBridge;
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// get object id of interface to be wrapped
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rtl_uString * pOId = nullptr;
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(*pBridge->pCppEnv->getObjectIdentifier)(
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pBridge->pCppEnv, &pOId, pCppI );
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assert(pOId);
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// try to get any known interface from target environment
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(*pBridge->pUnoEnv->getRegisteredInterface)(
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pBridge->pUnoEnv, ppUnoI, pOId, pTypeDescr );
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if (! *ppUnoI) // no existing interface, register new proxy interface
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{
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// try to publish a new proxy (refcount initially 1)
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uno_Interface * pSurrogate
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= bridges::cpp_uno::shared::UnoInterfaceProxy::create(
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pBridge,
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static_cast< ::com::sun::star::uno::XInterface * >( pCppI ),
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pTypeDescr, pOId );
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// proxy may be exchanged during registration
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(*pBridge->pUnoEnv->registerProxyInterface)(
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pBridge->pUnoEnv, reinterpret_cast< void ** >( &pSurrogate ),
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freeUnoInterfaceProxy, pOId,
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pTypeDescr );
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*ppUnoI = pSurrogate;
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}
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::rtl_uString_release( pOId );
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}
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void uno2cppMapping(
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uno_Mapping * pMapping, void ** ppCppI, void * pUnoI,
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typelib_InterfaceTypeDescription * pTypeDescr)
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{
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assert(ppCppI && pTypeDescr);
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if (*ppCppI)
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{
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static_cast< ::com::sun::star::uno::XInterface * >( *ppCppI )->
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release();
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*ppCppI = nullptr;
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}
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if (!pUnoI)
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return;
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Bridge * pBridge = static_cast< Bridge::Mapping * >( pMapping )->pBridge;
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// get object id of uno interface to be wrapped
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rtl_uString * pOId = nullptr;
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(*pBridge->pUnoEnv->getObjectIdentifier)(
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pBridge->pUnoEnv, &pOId, pUnoI );
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assert(pOId);
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// try to get any known interface from target environment
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(*pBridge->pCppEnv->getRegisteredInterface)(
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pBridge->pCppEnv, ppCppI, pOId, pTypeDescr );
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if (! *ppCppI) // no existing interface, register new proxy interface
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{
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// try to publish a new proxy (ref count initially 1)
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com::sun::star::uno::XInterface * pProxy
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= bridges::cpp_uno::shared::CppInterfaceProxy::create(
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pBridge, static_cast< uno_Interface * >( pUnoI ),
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pTypeDescr, pOId );
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// proxy may be exchanged during registration
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(*pBridge->pCppEnv->registerProxyInterface)(
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pBridge->pCppEnv, reinterpret_cast< void ** >( &pProxy ),
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freeCppInterfaceProxy, pOId,
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pTypeDescr );
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*ppCppI = pProxy;
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}
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::rtl_uString_release( pOId );
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}
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uno_Mapping * Bridge::createMapping(
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uno_ExtEnvironment * pCppEnv, uno_ExtEnvironment * pUnoEnv,
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bool bExportCpp2Uno)
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{
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Bridge * bridge = new Bridge(pCppEnv, pUnoEnv, bExportCpp2Uno);
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// coverity[leaked_storage] - on purpose
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return bExportCpp2Uno ? &bridge->aCpp2Uno : &bridge->aUno2Cpp;
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}
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void Bridge::acquire()
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{
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if (++nRef != 1)
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return;
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if (bExportCpp2Uno)
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{
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uno_Mapping * pMapping = &aCpp2Uno;
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::uno_registerMapping(
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&pMapping, freeMapping, &pCppEnv->aBase,
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&pUnoEnv->aBase, nullptr );
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}
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else
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{
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uno_Mapping * pMapping = &aUno2Cpp;
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::uno_registerMapping(
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&pMapping, freeMapping, &pUnoEnv->aBase,
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&pCppEnv->aBase, nullptr );
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}
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}
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void Bridge::release()
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{
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if (! --nRef )
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{
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::uno_revokeMapping( bExportCpp2Uno ? &aCpp2Uno : &aUno2Cpp );
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}
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}
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Bridge::Bridge(
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uno_ExtEnvironment * pCppEnv_, uno_ExtEnvironment * pUnoEnv_,
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bool bExportCpp2Uno_)
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: nRef( 1 )
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, pCppEnv( pCppEnv_ )
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, pUnoEnv( pUnoEnv_ )
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, bExportCpp2Uno( bExportCpp2Uno_ )
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{
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aCpp2Uno.pBridge = this;
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aCpp2Uno.acquire = acquireMapping;
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aCpp2Uno.release = releaseMapping;
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aCpp2Uno.mapInterface = cpp2unoMapping;
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aUno2Cpp.pBridge = this;
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aUno2Cpp.acquire = acquireMapping;
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aUno2Cpp.release = releaseMapping;
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aUno2Cpp.mapInterface = uno2cppMapping;
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(*pCppEnv->aBase.acquire)( &pCppEnv->aBase );
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(*pUnoEnv->aBase.acquire)( &pUnoEnv->aBase );
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}
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Bridge::~Bridge()
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{
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(*pUnoEnv->aBase.release)( &pUnoEnv->aBase );
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(*pCppEnv->aBase.release)( &pCppEnv->aBase );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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