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annotate OrthancFramework/Sources/Cache/MemoryCache.h @ 4662:3badc205cb4c

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 12 May 2021 09:32:20 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2021 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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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23 #pragma once
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24
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25 #include "../Compatibility.h"
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26 #include "ICachePageProvider.h"
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27 #include "LeastRecentlyUsedIndex.h"
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28
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29 #include <memory>
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30
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31 namespace Orthanc
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32 {
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33 namespace Deprecated
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34 {
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35 /**
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36 * WARNING: This class is NOT thread-safe.
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37 **/
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38 class ORTHANC_PUBLIC MemoryCache : public boost::noncopyable
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39 {
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40 private:
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41 struct Page
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42 {
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43 std::string id_;
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44 std::unique_ptr<IDynamicObject> content_;
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45 };
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46
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47 ICachePageProvider& provider_;
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48 size_t cacheSize_;
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49 LeastRecentlyUsedIndex<std::string, Page*> index_;
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51 Page& Load(const std::string& id);
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52
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53 public:
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54 MemoryCache(ICachePageProvider& provider,
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55 size_t cacheSize);
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57 ~MemoryCache();
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58
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59 IDynamicObject& Access(const std::string& id);
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61 void Invalidate(const std::string& id);
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62 };
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63 }
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64 }