Mercurial > hg > orthanc-authorization

comparison Plugin/MemoryCache.h @ 1:d5d3cb00556a

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initial release
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 22 Mar 2017 16:13:52 +0100
parents
children c44013681a51
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0:decac5df19c4 1:d5d3cb00556a
1 /**
2 * Advanced authorization plugin for Orthanc
3 * Copyright (C) 2017 Osimis, Belgium
4 *
5 * This program is free software: you can redistribute it and/or
6 * modify it under the terms of the GNU Affero General Public License
7 * as published by the Free Software Foundation, either version 3 of
8 * the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Affero General Public License for more details.
14 *
15 * You should have received a copy of the GNU Affero General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 **/
18
19 #pragma once
20
21 #include "ICacheFactory.h"
22 #include "../Resources/Orthanc/Core/Cache/LeastRecentlyUsedIndex.h"
23
24 #include <boost/thread/mutex.hpp>
25
26 namespace OrthancPlugins
27 {
28 class MemoryCache : public ICache
29 {
30 public:
31 class Factory : public ICacheFactory
32 {
33 private:
34 unsigned int maxSize_;
35
36 public:
37 Factory(unsigned int maxSize) :
38 maxSize_(maxSize)
39 {
40 }
41
42 virtual ICache *Create()
43 {
44 return new MemoryCache(maxSize_);
45 }
46 };
47
48 private:
49 class Payload;
50
51 typedef Orthanc::LeastRecentlyUsedIndex<std::string, Payload*> Index;
52
53 boost::mutex mutex_;
54 unsigned int maxSize_;
55 Index index_;
56
57 void RemoveOldest();
58
59 void InvalidateInternal(const std::string& key);
60
61 public:
62 MemoryCache(unsigned int maxSize);
63
64 ~MemoryCache();
65
66 virtual void Invalidate(const std::string& key);
67
68 virtual void Store(const std::string& key,
69 const std::string& value,
70 unsigned int expiration /* in seconds */);
71
72 virtual bool Retrieve(std::string& value,
73 const std::string& key);
74 };
75 }