Mercurial > hg > orthanc
annotate OrthancFramework/Sources/MultiThreading/Semaphore.cpp @ 5111:7547c7dfd017
/tools/metrics-prometheus: added orthanc_last_change and orthanc_up_time_s
author | Alain Mazy <am@osimis.io> |
---|---|
date | Tue, 22 Nov 2022 18:01:23 +0100 |
parents | 43e613a7756b |
children | 0ea402b4d901 |
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 | 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 |
4870
43e613a7756b
upgrade to year 2022
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4831
diff
changeset
|
5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
43e613a7756b
upgrade to year 2022
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4831
diff
changeset
|
6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
7 * |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
8 * This program is free software: you can redistribute it and/or |
4119
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
9 * modify it under the terms of the GNU Lesser General Public License |
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
10 * as published by the Free Software Foundation, either version 3 of |
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
11 * the License, or (at your option) any later version. |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
12 * |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
13 * 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
|
14 * 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
|
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
4119
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
16 * Lesser General Public License for more details. |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
17 * |
4119
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
18 * You should have received a copy of the GNU Lesser General Public |
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
19 * License along with this program. If not, see |
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4068
diff
changeset
|
20 * <http://www.gnu.org/licenses/>. |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
21 **/ |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
22 |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
23 |
1624
0a2ad4a6858f
fix missing precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1288
diff
changeset
|
24 #include "../PrecompiledHeaders.h" |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
25 #include "Semaphore.h" |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
26 |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
27 #include "../OrthancException.h" |
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 |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
30 namespace Orthanc |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
31 { |
3480
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
32 Semaphore::Semaphore(unsigned int availableResources) : |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
33 availableResources_(availableResources) |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
34 { |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
35 } |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
36 |
4300 | 37 unsigned int Semaphore::GetAvailableResourcesCount() const |
38 { | |
39 return availableResources_; | |
40 } | |
41 | |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
42 void Semaphore::Release(unsigned int resourceCount) |
995
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 boost::mutex::scoped_lock lock(mutex_); |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
45 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
46 availableResources_ += resourceCount; |
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
47 condition_.notify_one(); |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
48 } |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
49 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
50 void Semaphore::Acquire(unsigned int resourceCount) |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
51 { |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
52 boost::mutex::scoped_lock lock(mutex_); |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
53 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
54 while (availableResources_ < resourceCount) |
995
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 condition_.wait(lock); |
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 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
59 availableResources_ -= resourceCount; |
3480
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
60 } |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
61 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
62 bool Semaphore::TryAcquire(unsigned int resourceCount) |
3480
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
63 { |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
64 boost::mutex::scoped_lock lock(mutex_); |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
65 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
66 if (availableResources_ < resourceCount) |
3480
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
67 { |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
68 return false; |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
69 } |
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
70 |
4064
7176ebf08765
Semaphore: allow acquiring/releasing multiple resources
Alain Mazy
parents:
3640
diff
changeset
|
71 availableResources_ -= resourceCount; |
3480
10fd1b9ae044
fix Semaphore + added TryAcquire & TryLocker
Alain Mazy <alain@mazy.be>
parents:
3060
diff
changeset
|
72 return true; |
995
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
73 } |
8c67382f44a7
limit number of jobs in the scheduler
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
74 } |