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annotate OrthancFramework/Sources/MallocMemoryBuffer.cpp @ 5644:343149762476

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fix build with DCMTK <= 3.6.6
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 31 May 2024 18:23:44 +0200
parents f7adfb22e20e
children
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU Lesser General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * Lesser General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU Lesser General Public
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20 * License along with this program. If not, see
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21 * <http://www.gnu.org/licenses/>.
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22 **/
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24
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25 #include "PrecompiledHeaders.h"
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26 #include "MallocMemoryBuffer.h"
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27
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28 #include "OrthancException.h"
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29
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30 #include <string.h>
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33 namespace Orthanc
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34 {
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35 MallocMemoryBuffer::MallocMemoryBuffer() :
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36 buffer_(NULL),
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37 size_(0),
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38 free_(NULL)
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39 {
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40 }
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42
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43 void MallocMemoryBuffer::Clear()
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44 {
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45 if (size_ != 0)
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46 {
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47 if (free_ == NULL)
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48 {
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49 throw OrthancException(ErrorCode_InternalError);
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50 }
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51
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52 free_(buffer_);
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53 buffer_ = NULL;
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54 size_ = 0;
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55 free_ = NULL;
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56 }
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57 }
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60 void MallocMemoryBuffer::Assign(void* buffer,
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61 uint64_t size,
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62 FreeFunction freeFunction)
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63 {
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64 Clear();
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65
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66 if (size != 0 &&
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67 buffer == NULL)
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68 {
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69 throw OrthancException(ErrorCode_NullPointer);
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70 }
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71
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72 if (static_cast<uint64_t>(static_cast<size_t>(size)) != size)
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73 {
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74 freeFunction(buffer);
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75 throw OrthancException(ErrorCode_InternalError, "Buffer larger than 4GB, which is too large for Orthanc running in 32bits");
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76 }
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77
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78 buffer_ = buffer;
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79 size_ = size;
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80 free_ = freeFunction;
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81
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82 if (size_ != 0 &&
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83 free_ == NULL)
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84 {
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85 throw OrthancException(ErrorCode_ParameterOutOfRange, "No valid free() function provided");
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86 }
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87 }
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90 void MallocMemoryBuffer::MoveToString(std::string& target)
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91 {
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92 target.resize(size_);
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93
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94 if (size_ != 0)
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95 {
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96 memcpy(&target[0], buffer_, size_);
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97 }
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98
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99 Clear();
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100 }
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101 }