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> |
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date | Wed, 09 Nov 2016 12:43:58 +0100 |
parents | 3809121c3290 |
children | 5dc54316d68b |
rev | line source |
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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 } |