| 1 | /* | 
| 2 | * Copyright (C) 2000-2004  Object Oriented Parallel Simulation Engine (OOPSE) project | 
| 3 | * | 
| 4 | * Contact: oopse@oopse.org | 
| 5 | * | 
| 6 | * This program is free software; you can redistribute it and/or | 
| 7 | * modify it under the terms of the GNU Lesser General Public License | 
| 8 | * as published by the Free Software Foundation; either version 2.1 | 
| 9 | * of the License, or (at your option) any later version. | 
| 10 | * All we ask is that proper credit is given for our work, which includes | 
| 11 | * - but is not limited to - adding the above copyright notice to the beginning | 
| 12 | * of your source code files, and to any copyright notice that you may distribute | 
| 13 | * with programs based on this work. | 
| 14 | * | 
| 15 | * This program is distributed in the hope that it will be useful, | 
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
| 18 | * GNU Lesser General Public License for more details. | 
| 19 | * | 
| 20 | * You should have received a copy of the GNU Lesser General Public License | 
| 21 | * along with this program; if not, write to the Free Software | 
| 22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. | 
| 23 | * | 
| 24 | */ | 
| 25 |  | 
| 26 | /** | 
| 27 | * @file SnapshotManager.hpp | 
| 28 | * @author tlin | 
| 29 | * @date 10/20/2004 | 
| 30 | * @time 23:56am | 
| 31 | * @version 1.0 | 
| 32 | */ | 
| 33 | #ifndef BRAINS_SNAPSHOTMANAGER_HPP | 
| 34 | #define BRAINS_SNAPSHOTMANAGER_HPP | 
| 35 |  | 
| 36 | #include "brains/Snapshot.hpp" | 
| 37 |  | 
| 38 | namespace oopse{ | 
| 39 |  | 
| 40 | /** | 
| 41 | * @class SnapshotManager SnapshotManager.hpp "brains/SnapshotManager.hpp" | 
| 42 | * @brief SnapshotManager class is an abstract class which maintains | 
| 43 | * a series of snapshots. | 
| 44 | * | 
| 45 | * @see SimSnapshotManager | 
| 46 | * @see PropSnapshotManager | 
| 47 | */ | 
| 48 | class SnapshotManager { | 
| 49 | public: | 
| 50 | SnapshotManager() : currentSnapshot_(NULL), previousSnapshot_(NULL) { | 
| 51 | } | 
| 52 | virtual ~SnapshotManager(); | 
| 53 | virtual bool advance() = 0; | 
| 54 |  | 
| 55 | virtual Snapshot* getSnapshot(int id) = 0; | 
| 56 |  | 
| 57 | /** | 
| 58 | * Returns the pointer of previous snapshot | 
| 59 | * @return the pointer of previous snapshot | 
| 60 | */ | 
| 61 | Snapshot* getPrevSnapshot() { | 
| 62 | return previousSnapshot_; | 
| 63 | } | 
| 64 |  | 
| 65 | /** | 
| 66 | * Returns the pointer of current snapshot | 
| 67 | * @return the pointer of current snapshot | 
| 68 | */ | 
| 69 | Snapshot* getCurrentSnapshot() { | 
| 70 | return currentSnapshot_; | 
| 71 | } | 
| 72 |  | 
| 73 | int getCapacity(); | 
| 74 |  | 
| 75 | virtual void setCapacity(int capacity); | 
| 76 |  | 
| 77 | bool getNotifyStatus(); | 
| 78 |  | 
| 79 | void setNotifyStatus(bool status); | 
| 80 |  | 
| 81 | void attach(SnapshotObserver*); | 
| 82 |  | 
| 83 | void detach(SnapshotObserver*); | 
| 84 |  | 
| 85 | void notify(); | 
| 86 |  | 
| 87 | protected: | 
| 88 | Snapshot* currentSnapshot_; | 
| 89 | Snapshot* previousSnapshot_; | 
| 90 |  | 
| 91 | private: | 
| 92 | vector<SnapshotObserver*> observers_; | 
| 93 |  | 
| 94 | }; | 
| 95 |  | 
| 96 | } | 
| 97 | #endif //BRAINS_SNAPSHOTMANAGER_HPP | 
| 98 |  |