Mercurial > hg > orthanc
annotate Core/MultiThreading/SharedMessageQueue.h @ 2029:df9c1738d92e
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| author | sjodogne |
|---|---|
| date | Mon, 20 Jun 2016 14:07:48 +0200 |
| parents | b1291df2f780 |
| children | 93afa6134ab3 |
| rev | line source |
|---|---|
| 450 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
| 450 | 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 | |
| 451 | 37 #include <stdint.h> |
| 450 | 38 #include <list> |
| 39 #include <boost/thread.hpp> | |
| 40 | |
| 41 namespace Orthanc | |
| 42 { | |
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43 class SharedMessageQueue : public boost::noncopyable |
| 450 | 44 { |
| 45 private: | |
| 46 typedef std::list<IDynamicObject*> Queue; | |
| 47 | |
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48 bool isFifo_; |
| 450 | 49 unsigned int maxSize_; |
| 50 Queue queue_; | |
| 51 boost::mutex mutex_; | |
| 52 boost::condition_variable elementAvailable_; | |
| 452 | 53 boost::condition_variable emptied_; |
| 450 | 54 |
| 55 public: | |
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56 explicit SharedMessageQueue(unsigned int maxSize = 0); |
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57 |
| 450 | 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); | |
| 452 | 65 |
| 66 bool WaitEmpty(int32_t millisecondsTimeout); | |
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67 |
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68 bool IsFifoPolicy() const |
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69 { |
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70 return isFifo_; |
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71 } |
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72 |
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73 bool IsLifoPolicy() const |
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74 { |
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75 return !isFifo_; |
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76 } |
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77 |
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78 void SetFifoPolicy(); |
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79 |
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80 void SetLifoPolicy(); |
| 450 | 81 }; |
| 82 } |