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comparison OrthancFramework/Sources/Cache/MemoryCache.h @ 4044:d25f4c0fa160 framework

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splitting code into OrthancFramework and OrthancServer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jun 2020 20:30:34 +0200
parents Core/Cache/MemoryCache.h@2a170a8f1faf
children e00f3d089991
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4043:6c6239aec462 4044:d25f4c0fa160
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * In addition, as a special exception, the copyright holders of this
13 * program give permission to link the code of its release with the
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
15 * that use the same license as the "OpenSSL" library), and distribute
16 * the linked executables. You must obey the GNU General Public License
17 * in all respects for all of the code used other than "OpenSSL". If you
18 * modify file(s) with this exception, you may extend this exception to
19 * your version of the file(s), but you are not obligated to do so. If
20 * you do not wish to do so, delete this exception statement from your
21 * version. If you delete this exception statement from all source files
22 * in the program, then also delete it here.
23 *
24 * This program is distributed in the hope that it will be useful, but
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 **/
32
33
34 #pragma once
35
36 #include "../Compatibility.h"
37 #include "ICachePageProvider.h"
38 #include "LeastRecentlyUsedIndex.h"
39
40 #include <memory>
41
42 namespace Orthanc
43 {
44 namespace Deprecated
45 {
46 /**
47 * WARNING: This class is NOT thread-safe.
48 **/
49 class MemoryCache
50 {
51 private:
52 struct Page
53 {
54 std::string id_;
55 std::unique_ptr<IDynamicObject> content_;
56 };
57
58 ICachePageProvider& provider_;
59 size_t cacheSize_;
60 LeastRecentlyUsedIndex<std::string, Page*> index_;
61
62 Page& Load(const std::string& id);
63
64 public:
65 MemoryCache(ICachePageProvider& provider,
66 size_t cacheSize);
67
68 ~MemoryCache();
69
70 IDynamicObject& Access(const std::string& id);
71
72 void Invalidate(const std::string& id);
73 };
74 }
75 }