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annotate OrthancFramework/Sources/HttpServer/BufferHttpSender.cpp @ 5853:4d932683049d get-scu tip

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very first implementation of C-Get SCU
author Alain Mazy <am@orthanc.team>
date Tue, 29 Oct 2024 17:25:49 +0100
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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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23
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24 #include "../PrecompiledHeaders.h"
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25 #include "BufferHttpSender.h"
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26
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27 #include "../OrthancException.h"
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28
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29 #include <cassert>
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30
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31 namespace Orthanc
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32 {
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33 BufferHttpSender::BufferHttpSender() :
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34 position_(0),
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35 chunkSize_(0),
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36 currentChunkSize_(0)
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37 {
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38 }
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39
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40 std::string &BufferHttpSender::GetBuffer()
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41 {
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42 return buffer_;
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43 }
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45 const std::string &BufferHttpSender::GetBuffer() const
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46 {
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47 return buffer_;
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48 }
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49
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50 void BufferHttpSender::SetChunkSize(size_t chunkSize)
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51 {
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52 chunkSize_ = chunkSize;
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53 }
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54
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55 uint64_t BufferHttpSender::GetContentLength()
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56 {
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57 return buffer_.size();
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58 }
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59
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60
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61 bool BufferHttpSender::ReadNextChunk()
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62 {
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63 assert(position_ + currentChunkSize_ <= buffer_.size());
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64
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65 position_ += currentChunkSize_;
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66
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67 if (position_ == buffer_.size())
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68 {
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69 return false;
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70 }
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71 else
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72 {
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73 currentChunkSize_ = buffer_.size() - position_;
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74
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75 if (chunkSize_ != 0 &&
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76 currentChunkSize_ > chunkSize_)
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77 {
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78 currentChunkSize_ = chunkSize_;
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79 }
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80
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81 return true;
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82 }
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83 }
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84
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85
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86 const char* BufferHttpSender::GetChunkContent()
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87 {
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88 return buffer_.c_str() + position_;
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89 }
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90
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91
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92 size_t BufferHttpSender::GetChunkSize()
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93 {
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94 return currentChunkSize_;
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95 }
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96 }