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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"
#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
#include "guardedarray.hxx"
#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/vtablefactory.hxx"
#include "com/sun/star/uno/XInterface.hpp"
#include "osl/diagnose.h"
#include "osl/getglobalmutex.hxx"
#include "osl/interlck.h"
#include "osl/mutex.hxx"
#include "rtl/instance.hxx"
#include "typelib/typedescription.h"
#include <cstddef>
#include <new>
static bridges::cpp_uno::shared::VtableFactory * pInstance;
#if defined(__GNUG__) && !defined(__MINGW32__)
void dso_init(void) __attribute__((constructor));
void dso_exit(void) __attribute__((destructor));
#endif
void dso_init(void) {
if (!pInstance)
pInstance = new bridges::cpp_uno::shared::VtableFactory();
}
void dso_exit(void) {
if (pInstance)
{
delete pInstance;
pInstance = NULL;
}
}
#ifdef __SUNPRO_CC
# pragma init(dso_init)
# pragma fini(dso_exit)
#endif
namespace {
struct InitVtableFactory {
bridges::cpp_uno::shared::VtableFactory * operator()() {
return pInstance;
}
};
bridges::cpp_uno::shared::VtableFactory * getVtableFactory() {
return rtl_Instance<
bridges::cpp_uno::shared::VtableFactory, InitVtableFactory,
osl::MutexGuard, osl::GetGlobalMutex >::create(
InitVtableFactory(), osl::GetGlobalMutex());
}
}
namespace bridges { namespace cpp_uno { namespace shared {
void freeCppInterfaceProxy(uno_ExtEnvironment * pEnv, void * pInterface)
{
CppInterfaceProxy * pThis = CppInterfaceProxy::castInterfaceToProxy(
pInterface);
if (pEnv != pThis->pBridge->getCppEnv()) {
OSL_ASSERT(false);
}
(*pThis->pBridge->getUnoEnv()->revokeInterface)(
pThis->pBridge->getUnoEnv(), pThis->pUnoI );
(*pThis->pUnoI->release)( pThis->pUnoI );
::typelib_typedescription_release(
(typelib_TypeDescription *)pThis->pTypeDescr );
pThis->pBridge->release();
#if OSL_DEBUG_LEVEL > 1
*(int *)pInterface = 0xdeadbabe;
#endif
pThis->~CppInterfaceProxy();
delete[] reinterpret_cast< char * >(pThis);
}
com::sun::star::uno::XInterface * CppInterfaceProxy::create(
bridges::cpp_uno::shared::Bridge * pBridge, uno_Interface * pUnoI,
typelib_InterfaceTypeDescription * pTypeDescr, rtl::OUString const & rOId)
SAL_THROW(())
{
typelib_typedescription_complete(
reinterpret_cast< typelib_TypeDescription ** >(&pTypeDescr));
bridges::cpp_uno::shared::VtableFactory::Vtables aVtables(
getVtableFactory()->getVtables(pTypeDescr));
bridges::cpp_uno::shared::GuardedArray< char > pMemory(
new char[
sizeof (CppInterfaceProxy)
+ (aVtables.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 < aVtables.count; ++i) {
pProxy->vtables[i] = VtableFactory::mapBlockToVtable(
aVtables.blocks[i].start);
}
return castProxyToInterface(pProxy);
}
void CppInterfaceProxy::acquireProxy() SAL_THROW(())
{
if (1 == osl_incrementInterlockedCount( &nRef ))
{
// rebirth of proxy zombie
// register at cpp env
void * pThis = castProxyToInterface( this );
(*pBridge->getCppEnv()->registerProxyInterface)(
pBridge->getCppEnv(), &pThis, freeCppInterfaceProxy, oid.pData,
pTypeDescr );
OSL_ASSERT( pThis == castProxyToInterface( this ) );
}
}
void CppInterfaceProxy::releaseProxy() SAL_THROW(())
{
if (! osl_decrementInterlockedCount( &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_, rtl::OUString const & rOId_)
SAL_THROW(())
: nRef( 1 )
, pBridge( pBridge_ )
, pUnoI( pUnoI_ )
, pTypeDescr( pTypeDescr_ )
, oid( rOId_ )
{
pBridge->acquire();
::typelib_typedescription_acquire( (typelib_TypeDescription *)pTypeDescr );
(*pUnoI->acquire)( pUnoI );
(*pBridge->getUnoEnv()->registerInterface)(
pBridge->getUnoEnv(), reinterpret_cast< void ** >( &pUnoI ), oid.pData,
pTypeDescr );
}
CppInterfaceProxy::~CppInterfaceProxy()
{}
com::sun::star::uno::XInterface * CppInterfaceProxy::castProxyToInterface(
CppInterfaceProxy * pProxy)
{
return reinterpret_cast< com::sun::star::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);
}
} } }
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