Mercurial > hg > orthanc
comparison Core/MultiThreading/ArrayFilledByThreads.cpp @ 479:0cd977e94479
initial commit of the c++ client
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 16 Jul 2013 09:08:09 +0200 |
parents | |
children | a811bdf8b8eb |
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478:888f8a778e70 | 479:0cd977e94479 |
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1 #include "ArrayFilledByThreads.h" | |
2 | |
3 #include "../MultiThreading/ThreadedCommandProcessor.h" | |
4 #include "../OrthancException.h" | |
5 | |
6 namespace Orthanc | |
7 { | |
8 class ArrayFilledByThreads::Command : public ICommand | |
9 { | |
10 private: | |
11 ArrayFilledByThreads& that_; | |
12 size_t index_; | |
13 | |
14 public: | |
15 Command(ArrayFilledByThreads& that, | |
16 size_t index) : | |
17 that_(that), | |
18 index_(index) | |
19 { | |
20 } | |
21 | |
22 virtual bool Execute() | |
23 { | |
24 std::auto_ptr<IDynamicObject> obj(that_.filler_.GetFillerItem(index_)); | |
25 if (obj.get() == NULL) | |
26 { | |
27 return false; | |
28 } | |
29 else | |
30 { | |
31 boost::mutex::scoped_lock lock(that_.mutex_); | |
32 that_.array_[index_] = obj.release(); | |
33 return true; | |
34 } | |
35 } | |
36 }; | |
37 | |
38 void ArrayFilledByThreads::Clear() | |
39 { | |
40 for (size_t i = 0; i < array_.size(); i++) | |
41 { | |
42 if (array_[i]) | |
43 delete array_[i]; | |
44 } | |
45 | |
46 array_.clear(); | |
47 filled_ = false; | |
48 } | |
49 | |
50 void ArrayFilledByThreads::Update() | |
51 { | |
52 if (!filled_) | |
53 { | |
54 array_.resize(filler_.GetFillerSize()); | |
55 | |
56 Orthanc::ThreadedCommandProcessor processor(threadCount_); | |
57 for (size_t i = 0; i < array_.size(); i++) | |
58 { | |
59 processor.Post(new Command(*this, i)); | |
60 } | |
61 | |
62 processor.Join(); | |
63 filled_ = true; | |
64 } | |
65 } | |
66 | |
67 | |
68 ArrayFilledByThreads::ArrayFilledByThreads(IFiller& filler) : filler_(filler) | |
69 { | |
70 filled_ = false; | |
71 threadCount_ = 4; | |
72 } | |
73 | |
74 | |
75 ArrayFilledByThreads::~ArrayFilledByThreads() | |
76 { | |
77 Clear(); | |
78 } | |
79 | |
80 | |
81 void ArrayFilledByThreads::Reload() | |
82 { | |
83 Clear(); | |
84 Update(); | |
85 } | |
86 | |
87 | |
88 void ArrayFilledByThreads::Invalidate() | |
89 { | |
90 Clear(); | |
91 } | |
92 | |
93 | |
94 void ArrayFilledByThreads::SetThreadCount(unsigned int t) | |
95 { | |
96 if (t < 1) | |
97 { | |
98 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
99 } | |
100 | |
101 threadCount_ = t; | |
102 } | |
103 | |
104 | |
105 size_t ArrayFilledByThreads::GetSize() | |
106 { | |
107 Update(); | |
108 return array_.size(); | |
109 } | |
110 | |
111 | |
112 IDynamicObject& ArrayFilledByThreads::GetItem(size_t index) | |
113 { | |
114 if (index >= GetSize()) | |
115 { | |
116 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
117 } | |
118 | |
119 return *array_[index]; | |
120 } | |
121 } |