Mercurial > hg > orthanc
comparison Core/MultiThreading/Semaphore.cpp @ 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.cpp@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 #include "../PrecompiledHeaders.h" | |
35 #include "Semaphore.h" | |
36 | |
37 #include "../OrthancException.h" | |
38 | |
39 | |
40 namespace Orthanc | |
41 { | |
42 Semaphore::Semaphore(unsigned int count) : | |
43 count_(count) | |
44 { | |
45 if (count_ == 0) | |
46 { | |
47 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
48 } | |
49 } | |
50 | |
51 void Semaphore::Release() | |
52 { | |
53 boost::mutex::scoped_lock lock(mutex_); | |
54 | |
55 count_++; | |
56 condition_.notify_one(); | |
57 } | |
58 | |
59 void Semaphore::Acquire() | |
60 { | |
61 boost::mutex::scoped_lock lock(mutex_); | |
62 | |
63 while (count_ == 0) | |
64 { | |
65 condition_.wait(lock); | |
66 } | |
67 | |
68 count_++; | |
69 } | |
70 } |