Mercurial > hg > orthanc
comparison Core/Cache/MemoryStringCache.h @ 3557:4d809b2e1141
better cache toolbox: MemoryObjectCache
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 04 Nov 2019 15:18:38 +0100 |
parents | |
children | 94f4a18a79cc |
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3556:87940f7156e0 | 3557:4d809b2e1141 |
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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) 2017-2019 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 "MemoryObjectCache.h" | |
37 | |
38 namespace Orthanc | |
39 { | |
40 /** | |
41 * Facade object around "MemoryObjectCache" that caches a dictionary | |
42 * of strings, using the "fetch/add" paradigm of memcached. | |
43 **/ | |
44 class MemoryStringCache : public boost::noncopyable | |
45 { | |
46 private: | |
47 class StringValue; | |
48 | |
49 MemoryObjectCache cache_; | |
50 | |
51 public: | |
52 size_t GetMaximumSize() | |
53 { | |
54 return cache_.GetMaximumSize(); | |
55 } | |
56 | |
57 void SetMaximumSize(size_t size) | |
58 { | |
59 cache_.SetMaximumSize(size); | |
60 } | |
61 | |
62 void Add(const std::string& key, | |
63 const std::string& value); | |
64 | |
65 void Invalidate(const std::string& key) | |
66 { | |
67 cache_.Invalidate(key); | |
68 } | |
69 | |
70 bool Fetch(std::string& value, | |
71 const std::string& key); | |
72 }; | |
73 } |