Mercurial > hg > orthanc
annotate OrthancFramework/Sources/MultiThreading/SharedMessageQueue.h @ 4127:5be586c6a23e framework-lgpl
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 07 Jul 2020 20:28:09 +0200 |
| parents | bf7b9edf6b81 |
| children | e8005a58de16 |
| rev | line source |
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| 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 |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 450 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
| 450 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
| 450 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
| 450 | 20 **/ |
| 21 | |
| 22 | |
| 23 #pragma once | |
| 24 | |
| 25 #include "../IDynamicObject.h" | |
| 26 | |
| 451 | 27 #include <stdint.h> |
| 450 | 28 #include <list> |
| 29 #include <boost/thread.hpp> | |
| 30 | |
| 31 namespace Orthanc | |
| 32 { | |
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33 class ORTHANC_PUBLIC SharedMessageQueue : public boost::noncopyable |
| 450 | 34 { |
| 35 private: | |
| 36 typedef std::list<IDynamicObject*> Queue; | |
| 37 | |
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38 bool isFifo_; |
| 450 | 39 unsigned int maxSize_; |
| 40 Queue queue_; | |
| 41 boost::mutex mutex_; | |
| 42 boost::condition_variable elementAvailable_; | |
| 452 | 43 boost::condition_variable emptied_; |
| 450 | 44 |
| 45 public: | |
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46 explicit SharedMessageQueue(unsigned int maxSize = 0); |
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47 |
| 450 | 48 ~SharedMessageQueue(); |
| 49 | |
| 50 // This transfers the ownership of the message | |
| 51 void Enqueue(IDynamicObject* message); | |
| 52 | |
| 53 // The caller is responsible to delete the dequeud message! | |
| 54 IDynamicObject* Dequeue(int32_t millisecondsTimeout); | |
| 452 | 55 |
| 56 bool WaitEmpty(int32_t millisecondsTimeout); | |
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57 |
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58 bool IsFifoPolicy() const |
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59 { |
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60 return isFifo_; |
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61 } |
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62 |
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63 bool IsLifoPolicy() const |
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64 { |
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65 return !isFifo_; |
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66 } |
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67 |
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68 void SetFifoPolicy(); |
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69 |
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70 void SetLifoPolicy(); |
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71 |
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72 void Clear(); |
| 450 | 73 }; |
| 74 } |