bridges/inc/cppinterfaceproxy.hxx

   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 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include <atomic>
  25 #include <cstddef>
  26
  27 #include <rtl/ustring.hxx>
  28 #include <sal/types.h>
  29 #include <typelib/typedescription.h>
  30 #include <uno/dispatcher.h>
  31 #include <uno/environment.h>
  32 #include "vtablefactory.hxx"
  33
  34 namespace com::sun::star::uno { class XInterface; }
  35
  36 namespace bridges::cpp_uno::shared {
  37
  38 class Bridge;
  39
  40 extern "C" void freeCppInterfaceProxy(
  41     uno_ExtEnvironment * pEnv, void * pInterface);
  42
  43 /**
  44  * A cpp proxy wrapping a uno interface.
  45  */
  46 class CppInterfaceProxy {
  47 public:
  48     // Interface for Bridge:
  49
  50     static com::sun::star::uno::XInterface * create(
  51         Bridge * pBridge, uno_Interface * pUnoI,
  52         typelib_InterfaceTypeDescription * pTypeDescr,
  53         OUString const & rOId);
  54
  55     // Interface for individual CPP--UNO bridges:
  56
  57     Bridge * getBridge() { return pBridge; }
  58     uno_Interface * getUnoI() { return pUnoI; }
  59     typelib_InterfaceTypeDescription * getTypeDescr() { return pTypeDescr; }
  60     const OUString& getOid() const { return oid; }
  61
  62     // non virtual methods called on incoming vtable calls #1, #2
  63     void acquireProxy();
  64     void releaseProxy();
  65
  66     static CppInterfaceProxy * castInterfaceToProxy(void * pInterface);
  67
  68 private:
  69     CppInterfaceProxy(CppInterfaceProxy const &) = delete;
  70     CppInterfaceProxy& operator =(const CppInterfaceProxy&) = delete;
  71
  72     CppInterfaceProxy(
  73         Bridge * pBridge_, uno_Interface * pUnoI_,
  74         typelib_InterfaceTypeDescription * pTypeDescr_,
  75         OUString aOId_);
  76
  77     ~CppInterfaceProxy();
  78
  79     static com::sun::star::uno::XInterface * castProxyToInterface(
  80         CppInterfaceProxy * pProxy);
  81
  82     std::atomic<std::size_t> nRef;
  83     Bridge * pBridge;
  84
  85     // mapping information
  86     uno_Interface * pUnoI; // wrapped interface
  87     typelib_InterfaceTypeDescription * pTypeDescr;
  88     OUString oid;
  89
  90     VtableFactory::Slot * vtables[1] = {};
  91
  92     friend void freeCppInterfaceProxy(
  93         uno_ExtEnvironment * pEnv, void * pInterface);
  94 };
  95
  96 }
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */