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SharedArchive
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 22 May 2015 17:40:10 +0200
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children b22ba8c5edbe
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1366:a3559b66fba7 1367:fe6e5a9f1ea2
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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 General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "LeastRecentlyUsedIndex.h"
36 #include "../IDynamicObject.h"
37
38 #include <map>
39 #include <boost/thread.hpp>
40
41 namespace Orthanc
42 {
43 class SharedArchive : public boost::noncopyable
44 {
45 private:
46 typedef std::map<std::string, IDynamicObject*> Archive;
47
48 size_t maxSize_;
49 boost::mutex mutex_;
50 Archive archive_;
51 Orthanc::LeastRecentlyUsedIndex<std::string> lru_;
52
53 void RemoveInternal(const std::string& id);
54
55 public:
56 class Accessor : public boost::noncopyable
57 {
58 private:
59 boost::mutex::scoped_lock lock_;
60 IDynamicObject* item_;
61
62 public:
63 Accessor(SharedArchive& that,
64 const std::string& id);
65
66 IDynamicObject& GetItem() const
67 {
68 return *item_;
69 }
70 };
71
72
73 SharedArchive(size_t maxSize) : maxSize_(maxSize)
74 {
75 }
76
77 ~SharedArchive();
78
79 std::string Add(IDynamicObject* obj); // Takes the ownership
80
81 void Remove(const std::string& id);
82
83 void List(std::list<std::string>& items);
84 };
85 }
86
87