Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Loaders/LoaderStateMachine.h @ 2043:f3d756e5503f deep-learning
fix build on wasm
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 10 Feb 2023 09:13:49 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
rev | line source |
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815 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
815 | 7 * |
8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
815 | 10 * as published by the Free Software Foundation, either version 3 of |
11 * the License, or (at your option) any later version. | |
12 * | |
13 * This program is distributed in the hope that it will be useful, but | |
14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
815 | 21 **/ |
22 | |
23 | |
24 #pragma once | |
25 | |
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26 #include "../Messages/IObservable.h" |
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27 #include "../Messages/ObserverBase.h" |
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28 #include "../Oracle/GetOrthancImageCommand.h" |
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29 #include "../Oracle/GetOrthancWebViewerJpegCommand.h" |
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30 #include "../Oracle/IOracle.h" |
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31 #include "../Oracle/OracleCommandExceptionMessage.h" |
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32 #include "../Oracle/OrthancRestApiCommand.h" |
815 | 33 |
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34 #include <IDynamicObject.h> |
815 | 35 |
36 #include <list> | |
37 | |
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38 namespace OrthancStone |
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39 { |
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40 class ILoadersContext; |
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41 |
815 | 42 /** |
43 This class is supplied with Oracle commands and will schedule up to | |
44 simultaneousDownloads_ of them at the same time, then will schedule the | |
45 rest once slots become available. It is used, a.o., by the | |
46 OrtancMultiframeVolumeLoader class. | |
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47 |
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48 To use it, you need to create commands that derive from State. |
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49 |
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50 You need to initialize them with the object that must be called when |
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51 an answer is received. |
815 | 52 */ |
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53 |
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54 class LoaderStateMachine : public ObserverBase<LoaderStateMachine> |
815 | 55 { |
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56 public: |
815 | 57 class State : public Orthanc::IDynamicObject |
58 { | |
59 private: | |
60 LoaderStateMachine& that_; | |
61 | |
62 public: | |
1571 | 63 explicit State(LoaderStateMachine& that) : |
64 that_(that) | |
815 | 65 { |
66 } | |
67 | |
1571 | 68 explicit State(const State& currentState) : |
69 that_(currentState.that_) | |
815 | 70 { |
71 } | |
72 | |
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73 void Schedule(OracleCommandBase* command) const |
815 | 74 { |
75 that_.Schedule(command); | |
76 } | |
77 | |
78 template <typename T> | |
79 T& GetLoader() const | |
80 { | |
81 return dynamic_cast<T&>(that_); | |
82 } | |
83 | |
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84 virtual void Handle(const OrthancRestApiCommand::SuccessMessage& message); |
815 | 85 |
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86 virtual void Handle(const GetOrthancImageCommand::SuccessMessage& message); |
815 | 87 |
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88 virtual void Handle(const GetOrthancWebViewerJpegCommand::SuccessMessage& message); |
815 | 89 }; |
90 | |
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91 void Schedule(OracleCommandBase* command); |
815 | 92 |
93 void Start(); | |
94 | |
95 private: | |
96 void Step(); | |
97 | |
98 void Clear(); | |
99 | |
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100 void HandleExceptionMessage(const OracleCommandExceptionMessage& message); |
815 | 101 |
102 template <typename T> | |
103 void HandleSuccessMessage(const T& message); | |
104 | |
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105 typedef std::list<IOracleCommand*> PendingCommands; |
815 | 106 |
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107 ILoadersContext& loadersContext_; |
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108 bool active_; |
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109 unsigned int simultaneousDownloads_; |
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110 PendingCommands pendingCommands_; |
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111 unsigned int activeCommands_; |
815 | 112 |
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113 |
815 | 114 public: |
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115 explicit LoaderStateMachine(ILoadersContext& loadersContext); |
815 | 116 |
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117 void PostConstructor(); |
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118 |
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119 virtual ~LoaderStateMachine(); |
815 | 120 |
121 bool IsActive() const | |
122 { | |
123 return active_; | |
124 } | |
125 | |
126 void SetSimultaneousDownloads(unsigned int count); | |
127 }; | |
128 } |