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annotate Core/HttpServer/BufferHttpSender.cpp @ 3919:6f11b3233a06 transcoding

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OrthancPluginTranscodeDicomInstance() and OrthancPluginSerializeDicomInstance()
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 12 May 2020 12:38:27 +0200
parents 94f4a18a79cc
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) 2017-2020 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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33 #include "../PrecompiledHeaders.h"
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34 #include "BufferHttpSender.h"
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35
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36 #include "../OrthancException.h"
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37
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38 #include <cassert>
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39
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40 namespace Orthanc
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41 {
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42 BufferHttpSender::BufferHttpSender() :
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43 position_(0),
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44 chunkSize_(0),
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45 currentChunkSize_(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 bool BufferHttpSender::ReadNextChunk()
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51 {
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52 assert(position_ + currentChunkSize_ <= buffer_.size());
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53
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54 position_ += currentChunkSize_;
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55
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56 if (position_ == buffer_.size())
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57 {
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58 return false;
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59 }
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60 else
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61 {
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62 currentChunkSize_ = buffer_.size() - position_;
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63
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64 if (chunkSize_ != 0 &&
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65 currentChunkSize_ > chunkSize_)
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66 {
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67 currentChunkSize_ = chunkSize_;
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68 }
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69
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70 return true;
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71 }
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72 }
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74
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75 const char* BufferHttpSender::GetChunkContent()
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76 {
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77 return buffer_.c_str() + position_;
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78 }
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79
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80
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81 size_t BufferHttpSender::GetChunkSize()
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82 {
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83 return currentChunkSize_;
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84 }
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85 }