Mercurial > hg > orthanc-webviewer
annotate Orthanc/Core/MultiThreading/SharedMessageQueue.h @ 162:f17ecfffdc75
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 10 Jul 2017 11:51:20 +0200 |
| parents | 5dc54316d68b |
| children | dd1ad819ca33 |
| rev | line source |
|---|---|
| 25 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 122 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 25 | 4 * Department, University Hospital of Liege, Belgium |
|
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Sebastien Jodogne <s.jodogne@gmail.com>
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5 * Copyright (C) 2017 Osimis, Belgium |
| 25 | 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 #pragma once | |
| 35 | |
| 36 #include "../IDynamicObject.h" | |
| 37 | |
| 38 #include <stdint.h> | |
| 39 #include <list> | |
| 40 #include <boost/thread.hpp> | |
| 41 | |
| 42 namespace Orthanc | |
| 43 { | |
| 44 class SharedMessageQueue : public boost::noncopyable | |
| 45 { | |
| 46 private: | |
| 47 typedef std::list<IDynamicObject*> Queue; | |
| 48 | |
| 49 bool isFifo_; | |
| 50 unsigned int maxSize_; | |
| 51 Queue queue_; | |
| 52 boost::mutex mutex_; | |
| 53 boost::condition_variable elementAvailable_; | |
| 54 boost::condition_variable emptied_; | |
| 55 | |
| 56 public: | |
| 57 explicit SharedMessageQueue(unsigned int maxSize = 0); | |
| 58 | |
| 59 ~SharedMessageQueue(); | |
| 60 | |
| 61 // This transfers the ownership of the message | |
| 62 void Enqueue(IDynamicObject* message); | |
| 63 | |
| 64 // The caller is responsible to delete the dequeud message! | |
| 65 IDynamicObject* Dequeue(int32_t millisecondsTimeout); | |
| 66 | |
| 67 bool WaitEmpty(int32_t millisecondsTimeout); | |
| 68 | |
| 69 bool IsFifoPolicy() const | |
| 70 { | |
| 71 return isFifo_; | |
| 72 } | |
| 73 | |
| 74 bool IsLifoPolicy() const | |
| 75 { | |
| 76 return !isFifo_; | |
| 77 } | |
| 78 | |
| 79 void SetFifoPolicy(); | |
| 80 | |
| 81 void SetLifoPolicy(); | |
| 145 | 82 |
| 83 void Clear(); | |
| 25 | 84 }; |
| 85 } |