sw/inc/IInterface.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  #ifndef IINTERFACE_HXX_INCLUDED
  21  #define IINTERFACE_HXX_INCLUDED
  22
  23  #include <sal/types.h>
  24
  25  /** The base interface
  26  */
  27  class IInterface
  28  {
  29  public:
  30
  31     /** Aquire a reference to an instance. A caller shall release
  32         the instance by calling 'release' when it is no longer needed.
  33         'acquire' and 'release' calls need to be balanced.
  34
  35         @returns
  36         the current reference count of the instance for debugging purposes.
  37     */
  38     virtual sal_Int32 acquire() = 0;
  39
  40     /** Releases a reference to an instance. A caller has to call
  41         'release' when a before aquired reference to an instance
  42         is no longer needed. 'acquire' and 'release' calls need to
  43         be balanced.
  44
  45     @returns
  46         the current reference count of the instance for debugging purposes.
  47     */
  48     virtual sal_Int32 release() = 0;
  49
  50     /** Returns the current reference count. This method should be used for
  51         debugging purposes. Using it otherwise is a signal of a design flaw.
  52     */
  53     virtual sal_Int32 getReferenceCount() const = 0;
  54
  55 protected:
  56     virtual ~IInterface() {};
  57  };
  58
  59  #endif // IDOCUMENT_HXX_INCLUDED
  60
  61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */