Mercurial > hg > orthanc-webviewer
comparison Orthanc/Core/MultiThreading/SharedMessageQueue.h @ 25:15acbf5e7545
refactoring
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 02 Jun 2015 11:16:30 +0200 |
parents | |
children | 3809121c3290 |
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24:ed9acb0f938e | 25:15acbf5e7545 |
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1 /** | |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
33 #pragma once | |
34 | |
35 #include "../IDynamicObject.h" | |
36 | |
37 #include <stdint.h> | |
38 #include <list> | |
39 #include <boost/thread.hpp> | |
40 | |
41 namespace Orthanc | |
42 { | |
43 class SharedMessageQueue : public boost::noncopyable | |
44 { | |
45 private: | |
46 typedef std::list<IDynamicObject*> Queue; | |
47 | |
48 bool isFifo_; | |
49 unsigned int maxSize_; | |
50 Queue queue_; | |
51 boost::mutex mutex_; | |
52 boost::condition_variable elementAvailable_; | |
53 boost::condition_variable emptied_; | |
54 | |
55 public: | |
56 explicit SharedMessageQueue(unsigned int maxSize = 0); | |
57 | |
58 ~SharedMessageQueue(); | |
59 | |
60 // This transfers the ownership of the message | |
61 void Enqueue(IDynamicObject* message); | |
62 | |
63 // The caller is responsible to delete the dequeud message! | |
64 IDynamicObject* Dequeue(int32_t millisecondsTimeout); | |
65 | |
66 bool WaitEmpty(int32_t millisecondsTimeout); | |
67 | |
68 bool IsFifoPolicy() const | |
69 { | |
70 return isFifo_; | |
71 } | |
72 | |
73 bool IsLifoPolicy() const | |
74 { | |
75 return !isFifo_; | |
76 } | |
77 | |
78 void SetFifoPolicy(); | |
79 | |
80 void SetLifoPolicy(); | |
81 }; | |
82 } |