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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 SD_ASYNCHRONOUS_TASK_HXX
      21             : #define SD_ASYNCHRONOUS_TASK_HXX
      22             : 
      23             : namespace sd { namespace tools {
      24             : 
      25             : /** Interface for the asynchronous execution of a task.  This interface
      26             :     allows an controller to run the task either timer based with a fixed
      27             :     amount of time between the steps or thread based one step right after
      28             :     the other.
      29             : */
      30           0 : class AsynchronousTask
      31             : {
      32             : public:
      33             :     /** Run the next step of the task.  After HasNextStep() returns false
      34             :         this method should ignore further calls.
      35             :     */
      36             :     virtual void RunNextStep (void) = 0;
      37             : 
      38             :     /** Return <TRUE/> when there is at least one more step to execute.
      39             :         When the task has been executed completely then <FALSE/> is
      40             :         returned.
      41             :     */
      42             :     virtual bool HasNextStep (void) = 0;
      43             : 
      44             : protected:
      45           0 :     ~AsynchronousTask() {}
      46             : };
      47             : 
      48             : } } // end of namespace ::sd::tools
      49             : 
      50             : #endif
      51             : 
      52             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */