Mercurial > hg > orthanc
comparison Core/MultiThreading/Semaphore.h @ 2794:f790999a250a
Semaphore removed from graveyard, SystemToolbox::GetHardwareConcurrency()
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 27 Jul 2018 14:01:02 +0200 |
parents | Resources/Graveyard/Multithreading/Semaphore.h@af7ea91dd4d5 |
children | 497a637366b4 |
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2793:87b426e54473 | 2794:f790999a250a |
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1 /** | |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2018 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 General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
11 * | |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
23 * | |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
34 #pragma once | |
35 | |
36 #include <boost/noncopyable.hpp> | |
37 #include <boost/thread.hpp> | |
38 | |
39 namespace Orthanc | |
40 { | |
41 class Semaphore : public boost::noncopyable | |
42 { | |
43 private: | |
44 unsigned int count_; | |
45 boost::mutex mutex_; | |
46 boost::condition_variable condition_; | |
47 | |
48 void Release(); | |
49 | |
50 void Acquire(); | |
51 | |
52 public: | |
53 explicit Semaphore(unsigned int count); | |
54 | |
55 class Locker : public boost::noncopyable | |
56 { | |
57 private: | |
58 Semaphore& that_; | |
59 | |
60 public: | |
61 explicit Locker(Semaphore& that) : | |
62 that_(that) | |
63 { | |
64 that_.Acquire(); | |
65 } | |
66 | |
67 ~Locker() | |
68 { | |
69 that_.Release(); | |
70 } | |
71 }; | |
72 }; | |
73 } |