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       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 INCLUDED_SW_INC_IINTERFACE_HXX
      21             : #define INCLUDED_SW_INC_IINTERFACE_HXX
      22             : 
      23             : #include <sal/types.h>
      24             : 
      25             : /** The base interface
      26             :  */
      27        2958 : class IInterface
      28             : {
      29             : public:
      30             : 
      31             :     /** Acquire 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 acquired 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        2949 :     virtual ~IInterface() {};
      57             : };
      58             : 
      59             : #endif // INCLUDED_SW_INC_IINTERFACE_HXX
      60             : 
      61             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */