/* -*- 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 <cppinterfaceproxy.hxx>
#include <bridge.hxx>
#include <utility>
#include <vtablefactory.hxx>
#include <com/sun/star/uno/XInterface.hpp>
#include <typelib/typedescription.h>
#include <cstddef>
#include <memory>
#include <new >
namespace bridges::cpp_uno::shared {
void freeCppInterfaceProxy(uno_ExtEnvironment * pEnv, void * pInterface)
{
CppInterfaceProxy * pThis = CppInterfaceProxy::castInterfaceToProxy(
pInterface);
if (pEnv != pThis->pBridge->getCppEnv()) {
assert(false );
}
(*pThis->pBridge->getUnoEnv()->revokeInterface)(
pThis->pBridge->getUnoEnv(), pThis->pUnoI );
(*pThis->pUnoI->release)( pThis->pUnoI );
::typelib_typedescription_release(
&pThis->pTypeDescr->aBase );
pThis->pBridge->release();
#if OSL_DEBUG_LEVEL > 1
*(int *)pInterface = 0 xdeadbabe;
#endif
pThis->~CppInterfaceProxy();
delete [] reinterpret_cast < char * >(pThis);
}
css::uno::XInterface * CppInterfaceProxy::create(
bridges::cpp_uno::shared::Bridge * pBridge, uno_Interface * pUnoI,
typelib_InterfaceTypeDescription * pTypeDescr, OUString const & rOId)
{
typelib_typedescription_complete(
reinterpret_cast < typelib_TypeDescription ** >(&pTypeDescr));
static bridges::cpp_uno::shared::VtableFactory factory;
const bridges::cpp_uno::shared::VtableFactory::Vtables& rVtables(
factory.getVtables(pTypeDescr));
std::unique_ptr< char [] > pMemory(
new char [
sizeof (CppInterfaceProxy)
+ (rVtables.count - 1 ) * sizeof (void **)]);
new (pMemory.get()) CppInterfaceProxy(pBridge, pUnoI, pTypeDescr, rOId);
CppInterfaceProxy * pProxy = reinterpret_cast < CppInterfaceProxy * >(
pMemory.release());
for (sal_Int32 i = 0 ; i < rVtables.count; ++i) {
pProxy->vtables[i] = VtableFactory::mapBlockToVtable(
rVtables.blocks[i].start);
}
// coverity[leaked_storage : FALSE] - see freeCppInterfaceProxy
return castProxyToInterface(pProxy);
}
void CppInterfaceProxy::acquireProxy()
{
if (++nRef == 1 )
{
// rebirth of proxy zombie
// register at cpp env
void * pThis = castProxyToInterface( this );
(*pBridge->getCppEnv()->registerProxyInterface)(
pBridge->getCppEnv(), &pThis, freeCppInterfaceProxy, oid.pData,
pTypeDescr );
assert(pThis == castProxyToInterface(this ));
}
}
void CppInterfaceProxy::releaseProxy()
{
if (! --nRef ) // last release
{
// revoke from cpp env
(*pBridge->getCppEnv()->revokeInterface)(
pBridge->getCppEnv(), castProxyToInterface( this ) );
}
}
CppInterfaceProxy::CppInterfaceProxy(
bridges::cpp_uno::shared::Bridge * pBridge_, uno_Interface * pUnoI_,
typelib_InterfaceTypeDescription * pTypeDescr_, OUString aOId_)
: nRef( 1 )
, pBridge( pBridge_ )
, pUnoI( pUnoI_ )
, pTypeDescr( pTypeDescr_ )
, oid(std::move( aOId_ ))
{
pBridge->acquire();
::typelib_typedescription_acquire( &pTypeDescr->aBase );
(*pUnoI->acquire)( pUnoI );
(*pBridge->getUnoEnv()->registerInterface)(
pBridge->getUnoEnv(), reinterpret_cast < void ** >( &pUnoI ), oid.pData,
pTypeDescr );
}
CppInterfaceProxy::~CppInterfaceProxy()
{}
css::uno::XInterface * CppInterfaceProxy::castProxyToInterface(
CppInterfaceProxy * pProxy)
{
return reinterpret_cast < css::uno::XInterface * >(
&pProxy->vtables);
}
CppInterfaceProxy * CppInterfaceProxy::castInterfaceToProxy(void * pInterface)
{
// pInterface == &pProxy->vtables (this emulated offsetof is not truly
// portable):
char const * const base = reinterpret_cast < char const * >(16 );
std::ptrdiff_t const offset = reinterpret_cast < char const * >(
&reinterpret_cast < CppInterfaceProxy const * >(base)->vtables) - base;
return reinterpret_cast < CppInterfaceProxy * >(
static_cast < char * >(pInterface) - offset);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=92 H=97 G=94
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-04)
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