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comparison Core/MultiThreading/SharedMessageQueue.h @ 450:58b433bb9762

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SharedMessageQueue
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 04 Jul 2013 09:34:09 +0200
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children 0e8bd937a0f3
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449:694f06a84bf4 450:58b433bb9762
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
4 * 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 <list>
38 #include <boost/thread.hpp>
39
40 namespace Orthanc
41 {
42 class SharedMessageQueue
43 {
44 private:
45 typedef std::list<IDynamicObject*> Queue;
46
47 unsigned int maxSize_;
48 Queue queue_;
49 boost::mutex mutex_;
50 boost::condition_variable elementAvailable_;
51
52 public:
53 SharedMessageQueue(unsigned int maxSize = 0);
54
55 ~SharedMessageQueue();
56
57 // This transfers the ownership of the message
58 void Enqueue(IDynamicObject* message);
59
60 // The caller is responsible to delete the dequeud message!
61 IDynamicObject* Dequeue(int32_t millisecondsTimeout);
62 };
63 }