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annotate OrthancFramework/Sources/ChunkedBuffer.h @ 4742:31793125f491

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 06 Jul 2021 09:53:25 +0200
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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 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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23 #pragma once
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25 #include "OrthancFramework.h"
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27 #include <boost/noncopyable.hpp>
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28 #include <list>
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29 #include <string>
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31 namespace Orthanc
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32 {
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33 class ORTHANC_PUBLIC ChunkedBuffer : public boost::noncopyable
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34 {
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35 private:
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36 typedef std::list<std::string*> Chunks;
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38 size_t numBytes_;
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39 Chunks chunks_;
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40 std::string pendingBuffer_; // Buffer to speed up if adding many small chunks
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41 size_t pendingPos_;
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43 void Clear();
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45 void AddChunkInternal(const void* chunkData,
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46 size_t chunkSize);
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48 void FlushPendingBuffer();
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50 public:
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51 ChunkedBuffer();
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53 ~ChunkedBuffer();
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55 size_t GetNumBytes() const;
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57 void SetPendingBufferSize(size_t size);
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59 size_t GetPendingBufferSize() const;
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61 void AddChunk(const void* chunkData,
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62 size_t chunkSize);
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64 void AddChunk(const std::string& chunk);
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66 void AddChunk(const std::string::const_iterator& begin,
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67 const std::string::const_iterator& end);
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69 void Flatten(std::string& result);
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70 };
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71 }