| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef SD_ASYNCHRONOUS_TASK_HXX |
| #define SD_ASYNCHRONOUS_TASK_HXX |
| |
| namespace sd { namespace tools { |
| |
| /** Interface for the asynchronous execution of a task. This interface |
| allows an controller to run the task either timer based with a fixed |
| amount of time between the steps or thread based one step right after |
| the other. |
| */ |
| class AsynchronousTask |
| { |
| public: |
| /** Run the next step of the task. After HasNextStep() returns false |
| this method should ignore further calls. |
| */ |
| virtual void RunNextStep (void) = 0; |
| |
| /** Return <TRUE/> when there is at least one more step to execute. |
| When the task has been executed completely then <FALSE/> is |
| returned. |
| */ |
| virtual bool HasNextStep (void) = 0; |
| }; |
| |
| } } // end of namespace ::sd::tools |
| |
| #endif |
