Mercurial > hg > orthanc

annotate Core/MultiThreading/Semaphore.cpp @ 2447:878b59270859

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
upgrade to year 2018
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 02 Jan 2018 09:35:07 +0100
parents a3a65de1840f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
995
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1624
diff changeset
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
1288
6e7e5ed91c2d upgrade to year 2015
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 995
diff changeset
4 * Department, University Hospital of Liege, Belgium
2447
878b59270859 upgrade to year 2018
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2244
diff changeset
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
995
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 *
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * This program is free software: you can redistribute it and/or
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
8 * modify it under the terms of the GNU General Public License as
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
9 * published by the Free Software Foundation, either version 3 of the
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
10 * License, or (at your option) any later version.
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 *
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 * In addition, as a special exception, the copyright holders of this
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 * program give permission to link the code of its release with the
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
15 * that use the same license as the "OpenSSL" library), and distribute
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
16 * the linked executables. You must obey the GNU General Public License
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
17 * in all respects for all of the code used other than "OpenSSL". If you
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
18 * modify file(s) with this exception, you may extend this exception to
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
19 * your version of the file(s), but you are not obligated to do so. If
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20 * you do not wish to do so, delete this exception statement from your
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21 * version. If you delete this exception statement from all source files
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 * in the program, then also delete it here.
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 *
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24 * This program is distributed in the hope that it will be useful, but
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 * General Public License for more details.
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28 *
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 * You should have received a copy of the GNU General Public License
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31 **/
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
33
1624
0a2ad4a6858f fix missing precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
34 #include "../PrecompiledHeaders.h"
995
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
35 #include "Semaphore.h"
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
36
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
37 #include "../OrthancException.h"
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
38
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
39
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
40 namespace Orthanc
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
41 {
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 Semaphore::Semaphore(unsigned int count) : count_(count)
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
43 {
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
44 }
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
45
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46 void Semaphore::Release()
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47 {
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48 boost::mutex::scoped_lock lock(mutex_);
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
49
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
50 count_++;
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
51 condition_.notify_one();
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
52 }
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
53
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
54 void Semaphore::Acquire()
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
55 {
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
56 boost::mutex::scoped_lock lock(mutex_);
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
57
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
58 while (count_ == 0)
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
59 {
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
60 condition_.wait(lock);
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
61 }
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
62
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
63 count_++;
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
64 }
8c67382f44a7 limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
65 }