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comparison Applications/Resources/Graveyard/Threading/SharedValue.h @ 1586:b5417e377636

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reorganization
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 22 Oct 2020 16:17:10 +0200
parents OrthancStone/Resources/Graveyard/Threading/SharedValue.h@244ad1e4e76a
children 4fb8fdf03314
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1585:94edbfa64c97 1586:b5417e377636
1 /**
2 * Stone of Orthanc
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 Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #pragma once
23
24 #include <boost/noncopyable.hpp>
25 #include <boost/thread/mutex.hpp>
26
27 namespace OrthancStone
28 {
29 // A value that is protected by a mutex, in order to be shared by
30 // multiple threads
31 template <typename T>
32 class SharedValue : public boost::noncopyable
33 {
34 private:
35 boost::mutex mutex_;
36 T value_;
37
38 public:
39 class Locker : public boost::noncopyable
40 {
41 private:
42 boost::mutex::scoped_lock lock_;
43 T& value_;
44
45 public:
46 Locker(SharedValue& shared) :
47 lock_(shared.mutex_),
48 value_(shared.value_)
49 {
50 }
51
52 T& GetValue() const
53 {
54 return value_;
55 }
56 };
57 };
58 }