Mercurial > hg > orthanc-stone
annotate Framework/Messages/MessageBroker.h @ 258:e5a9b3d03478 am-2
first very basic version of SmartLoader
author | am@osimis.io |
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date | Tue, 10 Jul 2018 14:48:13 +0200 |
parents | 192e6e349e69 |
children | c9cf95b49a86 |
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 |
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22 #pragma once |
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23 |
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24 #include "../StoneEnumerations.h" |
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25 |
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26 #include "boost/noncopyable.hpp" |
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27 #include <map> |
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28 #include <list> |
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29 #include <set> |
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30 |
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31 namespace OrthancStone |
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32 { |
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33 class IObserver; |
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34 class IObservable; |
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35 class IMessage; |
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36 |
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37 /* |
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38 * This is a central message broker. It keeps track of all observers and knows |
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39 * when an observer is deleted. |
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40 * This way, it can prevent an observable to send a message to a dead observer. |
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41 */ |
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42 class MessageBroker : public boost::noncopyable |
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43 { |
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44 |
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45 std::set<IObserver*> activeObservers_; // the list of observers that are currently alive (that have not been deleted) |
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46 |
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47 public: |
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48 |
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49 void Register(IObserver& observer) |
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50 { |
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51 activeObservers_.insert(&observer); |
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52 } |
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53 |
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54 void Unregister(IObserver& observer) |
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55 { |
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56 activeObservers_.erase(&observer); |
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57 } |
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58 |
258 | 59 void EmitMessage(IObservable& from, std::set<IObserver*> observers, const IMessage& message); |
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60 }; |
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61 |
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62 } |