Mercurial > hg > orthanc-webviewer
annotate Plugin/Cache/CacheManager.h @ 147:70d1fe6d6309
Avoid hard crash if not enough memory
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 09 Nov 2016 12:43:58 +0100 |
| parents | 3809121c3290 |
| children | 5dc54316d68b |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 122 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 0 | 4 * Department, University Hospital of Liege, Belgium |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU Affero General Public License | |
| 8 * as published by the Free Software Foundation, either version 3 of | |
| 9 * the License, or (at your option) any later version. | |
| 10 * | |
| 11 * This program is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Affero General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Affero General Public License | |
| 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 **/ | |
| 19 | |
| 20 | |
| 21 #pragma once | |
| 22 | |
| 26 | 23 #include "../../Orthanc/Core/SQLite/Connection.h" |
| 24 #include "../../Orthanc/Core/FileStorage/FilesystemStorage.h" | |
| 0 | 25 |
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26 #include <orthanc/OrthancCPlugin.h> |
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27 |
| 0 | 28 namespace OrthancPlugins |
| 29 { | |
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30 enum CacheProperty |
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31 { |
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32 CacheProperty_OrthancVersion, |
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33 CacheProperty_WebViewerVersion |
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34 }; |
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35 |
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36 |
| 0 | 37 class CacheManager : public boost::noncopyable |
| 38 { | |
| 39 private: | |
| 40 struct PImpl; | |
| 41 boost::shared_ptr<PImpl> pimpl_; | |
| 42 | |
| 43 class Bundle; | |
| 44 class BundleQuota; | |
| 45 | |
| 46 typedef std::map<int, Bundle> Bundles; | |
| 47 typedef std::map<int, BundleQuota> BundleQuotas; | |
| 48 | |
| 49 const BundleQuota& GetBundleQuota(int bundleIndex) const; | |
| 50 | |
| 51 Bundle GetBundle(int bundleIndex) const; | |
| 52 | |
| 53 void MakeRoom(Bundle& bundle, | |
| 54 std::list<std::string>& toRemove, | |
| 55 int bundleIndex, | |
| 56 const BundleQuota& quota); | |
| 57 | |
| 58 void EnsureQuota(int bundleIndex, | |
| 59 const BundleQuota& quota); | |
| 60 | |
| 61 void ReadBundleStatistics(); | |
| 62 | |
| 63 void Open(); | |
| 64 | |
| 65 bool LocateInCache(std::string& uuid, | |
| 66 uint64_t& size, | |
| 67 int bundle, | |
| 68 const std::string& item); | |
| 69 | |
| 70 void SanityCheck(); // Only for debug | |
| 71 | |
| 72 | |
| 73 public: | |
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74 CacheManager(OrthancPluginContext* context, |
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75 Orthanc::SQLite::Connection& db, |
| 0 | 76 Orthanc::FilesystemStorage& storage); |
| 77 | |
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78 OrthancPluginContext* GetPluginContext() const; |
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79 |
| 0 | 80 void SetSanityCheckEnabled(bool enabled); |
| 81 | |
| 82 void Clear(); | |
| 83 | |
| 84 void Clear(int bundle); | |
| 85 | |
| 86 void SetBundleQuota(int bundle, | |
| 87 uint32_t maxCount, | |
| 88 uint64_t maxSpace); | |
| 89 | |
| 90 void SetDefaultQuota(uint32_t maxCount, | |
| 91 uint64_t maxSpace); | |
| 92 | |
| 93 bool IsCached(int bundle, | |
| 94 const std::string& item); | |
| 95 | |
| 96 bool Access(std::string& content, | |
| 97 int bundle, | |
| 98 const std::string& item); | |
| 99 | |
| 100 void Invalidate(int bundle, | |
| 101 const std::string& item); | |
| 102 | |
| 103 void Store(int bundle, | |
| 104 const std::string& item, | |
| 105 const std::string& content); | |
| 106 | |
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107 void SetProperty(CacheProperty property, |
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108 const std::string& value); |
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109 |
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110 bool LookupProperty(std::string& target, |
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111 CacheProperty property); |
| 0 | 112 }; |
| 113 } |