| /********************************************************************** |
| // @@@ START COPYRIGHT @@@ |
| // |
| // 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. |
| // |
| // @@@ END COPYRIGHT @@@ |
| // |
| **********************************************************************/ |
| #ifndef _RU_FLOW_CONTROLLER_H_ |
| #define _RU_FLOW_CONTROLLER_H_ |
| |
| /* -*-C++-*- |
| ****************************************************************************** |
| * |
| * File: RuFlowController.h |
| * Description: Definition of class CRUFlowController |
| * |
| * Created: 05/07/2000 |
| * Language: C++ |
| * |
| * |
| * |
| ****************************************************************************** |
| */ |
| |
| #include "refresh.h" |
| |
| #include "RuRuntimeController.h" |
| |
| class CRUDependenceGraph; |
| |
| //--------------------------------------------------------------------------// |
| // CRUFlowController |
| // |
| // The flow controller FSM is responsible for task scheduling |
| // and processing the results of task execution. |
| // |
| // The class operates the dependence graph object, which is created |
| // at the utility's prologue stage, and is responsible for task |
| // communication and scheduling |
| // |
| //--------------------------------------------------------------------------// |
| |
| class REFRESH_LIB_CLASS CRUFlowController : public CRURuntimeController { |
| |
| private: |
| typedef CRURuntimeController inherited; |
| |
| public: |
| CRUFlowController( |
| CRUDependenceGraph &dg, |
| TInt32 maxParallelism |
| ); |
| virtual ~CRUFlowController() {} |
| |
| public: |
| BOOL DidTaskFailuresHappen() const |
| { |
| return didTaskFailuresHappen_; |
| } |
| |
| protected: |
| //-- Pure virtual function implementation |
| //-- The actual switch for event handling |
| virtual void HandleRequest(CRURuntimeControllerRqst *pRequest); |
| |
| private: |
| //-- Prevent copying |
| CRUFlowController(const CRUFlowController &other); |
| CRUFlowController &operator = (const CRUFlowController &other); |
| |
| private: |
| //-- HandleRequest() callees |
| void HandleScheduleRqst(); |
| void HandleFinishTaskRqst(CRURuntimeControllerRqst *pRqst); |
| |
| void RouteScheduledTask(CRUTask *pTask); |
| static BOOL NeedToReportTaskFailure(CRUTask &task); |
| |
| // Notify the tasks that depend on this one about its completion |
| void NotifyTaskEnvironmentOnFailure(CRUTask &task); |
| |
| private: |
| CRUDependenceGraph &dg_; |
| TInt32 maxParallelism_; |
| unsigned short nRunningTasks_; |
| |
| BOOL didTaskFailuresHappen_; |
| }; |
| |
| #endif |