bridges/source/cpp_uno/shared/unointerfaceproxy.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <unointerfaceproxy.hxx>
  21
  22 #include <bridge.hxx>
  23
  24 #include <com/sun/star/uno/XInterface.hpp>
  25 #include <utility>
  26 #include <typelib/typedescription.h>
  27 #include <uno/dispatcher.h>
  28
  29 namespace bridges::cpp_uno::shared {
  30
  31 void freeUnoInterfaceProxy(uno_ExtEnvironment * pEnv, void * pProxy)
  32 {
  33     UnoInterfaceProxy * pThis =
  34         static_cast< UnoInterfaceProxy * >(
  35             static_cast< uno_Interface * >( pProxy ) );
  36     if (pEnv != pThis->pBridge->getUnoEnv()) {
  37         assert(false);
  38     }
  39
  40     (*pThis->pBridge->getCppEnv()->revokeInterface)(
  41         pThis->pBridge->getCppEnv(), pThis->pCppI );
  42     pThis->pCppI->release();
  43     ::typelib_typedescription_release(&pThis->pTypeDescr->aBase);
  44     pThis->pBridge->release();
  45
  46 #if OSL_DEBUG_LEVEL > 1
  47     *(int *)pProxy = 0xdeadbabe;
  48 #endif
  49     delete pThis;
  50 }
  51
  52 void acquireProxy(uno_Interface * pUnoI)
  53 {
  54     if (++static_cast< UnoInterfaceProxy * >( pUnoI )->nRef != 1)
  55         return;
  56
  57     // rebirth of proxy zombie
  58     // register at uno env
  59 #if OSL_DEBUG_LEVEL > 1
  60     void * pThis = pUnoI;
  61 #endif
  62     (*static_cast< UnoInterfaceProxy * >( pUnoI )->pBridge->getUnoEnv()->
  63      registerProxyInterface)(
  64          static_cast< UnoInterfaceProxy * >( pUnoI )->pBridge->getUnoEnv(),
  65          reinterpret_cast< void ** >( &pUnoI ), freeUnoInterfaceProxy,
  66          static_cast< UnoInterfaceProxy * >( pUnoI )->oid.pData,
  67          static_cast< UnoInterfaceProxy * >( pUnoI )->pTypeDescr );
  68 #if OSL_DEBUG_LEVEL > 1
  69     assert(pThis == pUnoI);
  70 #endif
  71 }
  72
  73 void releaseProxy(uno_Interface * pUnoI)
  74 {
  75     if (! --static_cast< UnoInterfaceProxy * >( pUnoI )->nRef )
  76     {
  77         // revoke from uno env on last release
  78         (*static_cast< UnoInterfaceProxy * >( pUnoI )->pBridge->getUnoEnv()->
  79          revokeInterface)(
  80              static_cast< UnoInterfaceProxy * >( pUnoI )->pBridge->getUnoEnv(),
  81              pUnoI );
  82     }
  83 }
  84
  85 UnoInterfaceProxy * UnoInterfaceProxy::create(
  86     bridges::cpp_uno::shared::Bridge * pBridge,
  87     css::uno::XInterface * pCppI,
  88     typelib_InterfaceTypeDescription * pTypeDescr,
  89     OUString const & rOId)
  90 {
  91     return new UnoInterfaceProxy(pBridge, pCppI, pTypeDescr, rOId);
  92 }
  93
  94 UnoInterfaceProxy::UnoInterfaceProxy(
  95     bridges::cpp_uno::shared::Bridge * pBridge_,
  96     css::uno::XInterface * pCppI_,
  97     typelib_InterfaceTypeDescription * pTypeDescr_, OUString aOId_)
  98     : nRef( 1 )
  99     , pBridge( pBridge_ )
 100     , pCppI( pCppI_ )
 101     , pTypeDescr( pTypeDescr_ )
 102     , oid(std::move( aOId_ ))
 103 {
 104     pBridge->acquire();
 105     ::typelib_typedescription_acquire(&pTypeDescr->aBase);
 106     if (!pTypeDescr->aBase.bComplete)
 107         ::typelib_typedescription_complete(
 108             reinterpret_cast<typelib_TypeDescription **>(&pTypeDescr));
 109     assert(pTypeDescr->aBase.bComplete);
 110     pCppI->acquire();
 111     (*pBridge->getCppEnv()->registerInterface)(
 112         pBridge->getCppEnv(), reinterpret_cast< void ** >( &pCppI ), oid.pData,
 113         pTypeDescr );
 114
 115     // uno_Interface
 116     acquire = acquireProxy;
 117     release = releaseProxy;
 118     pDispatcher = unoInterfaceProxyDispatch;
 119 }
 120
 121 UnoInterfaceProxy::~UnoInterfaceProxy()
 122 {}
 123
 124 }
 125
 126 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */