annotate Applications/Resources/Graveyard/Threading/SharedValue.h @ 2012:637d6373127a

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 02 Dec 2022 18:49:06 +0100
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
1871
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Affero General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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23 #pragma once
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25 #include <boost/noncopyable.hpp>
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26 #include <boost/thread/mutex.hpp>
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28 namespace OrthancStone
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29 {
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30 // A value that is protected by a mutex, in order to be shared by
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31 // multiple threads
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32 template <typename T>
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33 class SharedValue : public boost::noncopyable
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34 {
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35 private:
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36 boost::mutex mutex_;
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37 T value_;
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39 public:
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40 class Locker : public boost::noncopyable
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41 {
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42 private:
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43 boost::mutex::scoped_lock lock_;
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44 T& value_;
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46 public:
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47 Locker(SharedValue& shared) :
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48 lock_(shared.mutex_),
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49 value_(shared.value_)
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50 {
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51 }
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53 T& GetValue() const
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54 {
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55 return value_;
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56 }
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57 };
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58 };
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59 }