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annotate OrthancFramework/Sources/ChunkedBuffer.cpp @ 4119:bf7b9edf6b81 framework-lgpl

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re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 19:17:56 +0200
parents d25f4c0fa160
children 732ad6c618ba
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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) 2017-2020 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 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.
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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 * Lesser 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 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/>.
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20 **/
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22
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23 #include "PrecompiledHeaders.h"
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24 #include "ChunkedBuffer.h"
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26 #include <cassert>
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27 #include <string.h>
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29
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30 namespace Orthanc
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31 {
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32 void ChunkedBuffer::Clear()
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33 {
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34 numBytes_ = 0;
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36 for (Chunks::iterator it = chunks_.begin();
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37 it != chunks_.end(); ++it)
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38 {
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39 delete *it;
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40 }
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41 }
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43
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44 void ChunkedBuffer::AddChunk(const void* chunkData,
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45 size_t chunkSize)
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46 {
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47 if (chunkSize == 0)
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48 {
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49 return;
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50 }
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51 else
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52 {
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53 assert(chunkData != NULL);
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54 chunks_.push_back(new std::string(reinterpret_cast<const char*>(chunkData), chunkSize));
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55 numBytes_ += chunkSize;
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56 }
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57 }
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60 void ChunkedBuffer::AddChunk(const std::string& chunk)
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61 {
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62 if (chunk.size() > 0)
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63 {
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64 AddChunk(&chunk[0], chunk.size());
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65 }
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66 }
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68
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69 void ChunkedBuffer::AddChunkDestructive(std::string& chunk)
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70 {
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71 size_t chunkSize = chunk.size();
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72
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73 if (chunkSize > 0)
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74 {
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75 chunks_.push_back(new std::string);
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76 chunks_.back()->swap(chunk);
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77 numBytes_ += chunkSize;
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78 }
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79 }
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81
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82 void ChunkedBuffer::Flatten(std::string& result)
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83 {
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84 result.resize(numBytes_);
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86 size_t pos = 0;
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87 for (Chunks::iterator it = chunks_.begin();
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88 it != chunks_.end(); ++it)
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89 {
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90 assert(*it != NULL);
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91
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92 size_t s = (*it)->size();
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93 if (s != 0)
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94 {
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95 memcpy(&result[pos], (*it)->c_str(), s);
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96 pos += s;
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97 }
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99 delete *it;
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100 }
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101
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102 chunks_.clear();
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103 numBytes_ = 0;
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104 }
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105 }