Mercurial > hg > orthanc

annotate Core/Cache/MemoryCache.h @ 1657:5360cdba70d8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
New function "OrthancPluginRegisterDictionaryTag()" to declare DICOM tags
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 29 Sep 2015 16:31:48 +0200
parents 6e7e5ed91c2d
children b1291df2f780
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
284
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 * Orthanc - A Lightweight, RESTful DICOM Store
1288
6e7e5ed91c2d upgrade to year 2015
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 689
diff changeset
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
6e7e5ed91c2d upgrade to year 2015
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 689
diff changeset
4 * Department, University Hospital of Liege, Belgium
284
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
5 *
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 * This program is free software: you can redistribute it and/or
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * modify it under the terms of the GNU General Public License as
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
8 * published by the Free Software Foundation, either version 3 of the
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
9 * License, or (at your option) any later version.
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
10 *
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 * In addition, as a special exception, the copyright holders of this
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 * program give permission to link the code of its release with the
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
14 * that use the same license as the "OpenSSL" library), and distribute
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
15 * the linked executables. You must obey the GNU General Public License
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
16 * in all respects for all of the code used other than "OpenSSL". If you
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
17 * modify file(s) with this exception, you may extend this exception to
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
18 * your version of the file(s), but you are not obligated to do so. If
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
19 * you do not wish to do so, delete this exception statement from your
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20 * version. If you delete this exception statement from all source files
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21 * in the program, then also delete it here.
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 *
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 * This program is distributed in the hope that it will be useful, but
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 * General Public License for more details.
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 *
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28 * You should have received a copy of the GNU General Public License
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 **/
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
33 #pragma once
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
34
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
35 #include <memory>
505
f59e4518fd57 rename CacheIndex as LeastRecentlyUsedIndex
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
36 #include "LeastRecentlyUsedIndex.h"
284
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
37 #include "ICachePageProvider.h"
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
38
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
39 namespace Orthanc
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
40 {
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
41 /**
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 * WARNING: This class is NOT thread-safe.
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
43 **/
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
44 class MemoryCache
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
45 {
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46 private:
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47 struct Page
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48 {
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
49 std::string id_;
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
50 std::auto_ptr<IDynamicObject> content_;
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
51 };
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
52
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
53 ICachePageProvider& provider_;
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
54 size_t cacheSize_;
505
f59e4518fd57 rename CacheIndex as LeastRecentlyUsedIndex
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
55 LeastRecentlyUsedIndex<std::string, Page*> index_;
284
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
56
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
57 Page& Load(const std::string& id);
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
58
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
59 public:
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
60 MemoryCache(ICachePageProvider& provider,
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
61 size_t cacheSize);
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
62
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
63 ~MemoryCache();
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
64
285
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 284
diff changeset
65 IDynamicObject& Access(const std::string& id);
284
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
66 };
06aa7b7b6723 implementation of a single-threaded cache mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
67 }