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annotate Framework/Plugins/StorageAreaBuffer.cpp @ 194:a51ce147dbe0

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refactoring using new class StorageAreaBuffer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 08 Jan 2021 14:40:03 +0100
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children 53bd9022c58b
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2021 Osimis S.A., Belgium
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6 *
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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 Affero 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.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "StorageAreaBuffer.h"
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23
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24 #include <OrthancException.h>
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25
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26 #include <limits>
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27 #include <string.h>
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28
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29
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30 namespace OrthancDatabases
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31 {
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32 StorageAreaBuffer::StorageAreaBuffer() :
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33 data_(NULL),
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34 size_(0)
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35 {
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36 }
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37
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38
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39 void StorageAreaBuffer::Clear()
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40 {
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41 if (data_ != NULL)
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42 {
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43 free(data_);
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44 data_ = NULL;
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45 size_ = 0;
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46 }
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47 }
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48
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49
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50 void StorageAreaBuffer::Assign(const std::string& content)
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51 {
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52 Clear();
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53
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54 size_ = static_cast<int64_t>(content.size());
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55
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56 if (static_cast<size_t>(size_) != content.size())
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57 {
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58 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory,
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59 "File cannot be stored in a 63bit buffer");
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60 }
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61
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62 if (content.empty())
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63 {
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64 data_ = NULL;
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65 }
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66 else
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67 {
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68 data_ = malloc(size_);
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69
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70 if (data_ == NULL)
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71 {
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72 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory);
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73 }
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74
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75 memcpy(data_, content.c_str(), size_);
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76 }
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77 }
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78
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79
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80 void* StorageAreaBuffer::ReleaseData()
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81 {
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82 void* result = data_;
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83 data_ = NULL;
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84 size_ = 0;
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85 return result;
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86 }
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87
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88
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89 void StorageAreaBuffer::ToString(std::string& target)
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90 {
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91 target.resize(size_);
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92
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93 if (size_ != 0)
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94 {
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95 memcpy(&target[0], data_, size_);
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96 }
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97 }
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98 }