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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /bridges/source/cpp_uno/shared/bridge.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'bridges/source/cpp_uno/shared/bridge.cxx')
-rw-r--r--bridges/source/cpp_uno/shared/bridge.cxx210
1 files changed, 210 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/shared/bridge.cxx b/bridges/source/cpp_uno/shared/bridge.cxx
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+++ b/bridges/source/cpp_uno/shared/bridge.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <bridge.hxx>
+
+#include <cppinterfaceproxy.hxx>
+#include <unointerfaceproxy.hxx>
+
+#include <com/sun/star/uno/XInterface.hpp>
+#include <rtl/ustring.h>
+#include <sal/types.h>
+#include <typelib/typedescription.h>
+#include <uno/dispatcher.h>
+#include <uno/environment.h>
+#include <uno/mapping.h>
+
+namespace bridges::cpp_uno::shared {
+
+void freeMapping(uno_Mapping * pMapping)
+{
+ delete static_cast< Bridge::Mapping * >( pMapping )->pBridge;
+}
+
+void acquireMapping(uno_Mapping * pMapping)
+{
+ static_cast< Bridge::Mapping * >( pMapping )->pBridge->acquire();
+}
+
+void releaseMapping(uno_Mapping * pMapping)
+{
+ static_cast< Bridge::Mapping * >( pMapping )->pBridge->release();
+}
+
+void cpp2unoMapping(
+ uno_Mapping * pMapping, void ** ppUnoI, void * pCppI,
+ typelib_InterfaceTypeDescription * pTypeDescr)
+{
+ assert(ppUnoI && pTypeDescr);
+ if (*ppUnoI)
+ {
+ (*static_cast< uno_Interface * >( *ppUnoI )->release)(
+ static_cast< uno_Interface * >( *ppUnoI ) );
+ *ppUnoI = nullptr;
+ }
+ if (!pCppI)
+ return;
+
+ Bridge * pBridge = static_cast< Bridge::Mapping * >( pMapping )->pBridge;
+
+ // get object id of interface to be wrapped
+ rtl_uString * pOId = nullptr;
+ (*pBridge->pCppEnv->getObjectIdentifier)(
+ pBridge->pCppEnv, &pOId, pCppI );
+ assert(pOId);
+
+ // try to get any known interface from target environment
+ (*pBridge->pUnoEnv->getRegisteredInterface)(
+ pBridge->pUnoEnv, ppUnoI, pOId, pTypeDescr );
+
+ if (! *ppUnoI) // no existing interface, register new proxy interface
+ {
+ // try to publish a new proxy (refcount initially 1)
+ uno_Interface * pSurrogate
+ = bridges::cpp_uno::shared::UnoInterfaceProxy::create(
+ pBridge,
+ static_cast< ::com::sun::star::uno::XInterface * >( pCppI ),
+ pTypeDescr, pOId );
+
+ // proxy may be exchanged during registration
+ (*pBridge->pUnoEnv->registerProxyInterface)(
+ pBridge->pUnoEnv, reinterpret_cast< void ** >( &pSurrogate ),
+ freeUnoInterfaceProxy, pOId,
+ pTypeDescr );
+
+ *ppUnoI = pSurrogate;
+ }
+ ::rtl_uString_release( pOId );
+}
+
+void uno2cppMapping(
+ uno_Mapping * pMapping, void ** ppCppI, void * pUnoI,
+ typelib_InterfaceTypeDescription * pTypeDescr)
+{
+ assert(ppCppI && pTypeDescr);
+ if (*ppCppI)
+ {
+ static_cast< ::com::sun::star::uno::XInterface * >( *ppCppI )->
+ release();
+ *ppCppI = nullptr;
+ }
+ if (!pUnoI)
+ return;
+
+ Bridge * pBridge = static_cast< Bridge::Mapping * >( pMapping )->pBridge;
+
+ // get object id of uno interface to be wrapped
+ rtl_uString * pOId = nullptr;
+ (*pBridge->pUnoEnv->getObjectIdentifier)(
+ pBridge->pUnoEnv, &pOId, pUnoI );
+ assert(pOId);
+
+ // try to get any known interface from target environment
+ (*pBridge->pCppEnv->getRegisteredInterface)(
+ pBridge->pCppEnv, ppCppI, pOId, pTypeDescr );
+
+ if (! *ppCppI) // no existing interface, register new proxy interface
+ {
+ // try to publish a new proxy (ref count initially 1)
+ com::sun::star::uno::XInterface * pProxy
+ = bridges::cpp_uno::shared::CppInterfaceProxy::create(
+ pBridge, static_cast< uno_Interface * >( pUnoI ),
+ pTypeDescr, pOId );
+
+ // proxy may be exchanged during registration
+ (*pBridge->pCppEnv->registerProxyInterface)(
+ pBridge->pCppEnv, reinterpret_cast< void ** >( &pProxy ),
+ freeCppInterfaceProxy, pOId,
+ pTypeDescr );
+
+ *ppCppI = pProxy;
+ }
+ ::rtl_uString_release( pOId );
+}
+
+uno_Mapping * Bridge::createMapping(
+ uno_ExtEnvironment * pCppEnv, uno_ExtEnvironment * pUnoEnv,
+ bool bExportCpp2Uno)
+{
+ Bridge * bridge = new Bridge(pCppEnv, pUnoEnv, bExportCpp2Uno);
+ // coverity[leaked_storage] - on purpose
+ return bExportCpp2Uno ? &bridge->aCpp2Uno : &bridge->aUno2Cpp;
+}
+
+void Bridge::acquire()
+{
+ if (++nRef != 1)
+ return;
+
+ if (bExportCpp2Uno)
+ {
+ uno_Mapping * pMapping = &aCpp2Uno;
+ ::uno_registerMapping(
+ &pMapping, freeMapping, &pCppEnv->aBase,
+ &pUnoEnv->aBase, nullptr );
+ }
+ else
+ {
+ uno_Mapping * pMapping = &aUno2Cpp;
+ ::uno_registerMapping(
+ &pMapping, freeMapping, &pUnoEnv->aBase,
+ &pCppEnv->aBase, nullptr );
+ }
+}
+
+void Bridge::release()
+{
+ if (! --nRef )
+ {
+ ::uno_revokeMapping( bExportCpp2Uno ? &aCpp2Uno : &aUno2Cpp );
+ }
+}
+
+Bridge::Bridge(
+ uno_ExtEnvironment * pCppEnv_, uno_ExtEnvironment * pUnoEnv_,
+ bool bExportCpp2Uno_)
+ : nRef( 1 )
+ , pCppEnv( pCppEnv_ )
+ , pUnoEnv( pUnoEnv_ )
+ , bExportCpp2Uno( bExportCpp2Uno_ )
+{
+ aCpp2Uno.pBridge = this;
+ aCpp2Uno.acquire = acquireMapping;
+ aCpp2Uno.release = releaseMapping;
+ aCpp2Uno.mapInterface = cpp2unoMapping;
+
+ aUno2Cpp.pBridge = this;
+ aUno2Cpp.acquire = acquireMapping;
+ aUno2Cpp.release = releaseMapping;
+ aUno2Cpp.mapInterface = uno2cppMapping;
+
+ (*pCppEnv->aBase.acquire)( &pCppEnv->aBase );
+ (*pUnoEnv->aBase.acquire)( &pUnoEnv->aBase );
+}
+
+Bridge::~Bridge()
+{
+ (*pUnoEnv->aBase.release)( &pUnoEnv->aBase );
+ (*pCppEnv->aBase.release)( &pCppEnv->aBase );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */