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annotate OrthancFramework/Sources/MallocMemoryBuffer.cpp @ 4555:456ed3fcff81 db-changes

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 03 Mar 2021 17:13:41 +0100
parents 64f06e7d5fc7
children 7053502fbf97
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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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21
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22
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23 #include "PrecompiledHeaders.h"
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24 #include "MallocMemoryBuffer.h"
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25
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26 #include "OrthancException.h"
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27
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28 #include <string.h>
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29
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31 namespace Orthanc
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32 {
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33 MallocMemoryBuffer::MallocMemoryBuffer() :
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34 buffer_(NULL),
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35 size_(0),
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36 free_(NULL)
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37 {
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38 }
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40
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41 void MallocMemoryBuffer::Clear()
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42 {
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43 if (size_ != 0)
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44 {
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45 if (free_ == NULL)
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46 {
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47 throw OrthancException(ErrorCode_InternalError);
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48 }
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49
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50 free_(buffer_);
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51 buffer_ = NULL;
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52 size_ = 0;
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53 free_ = NULL;
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54 }
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55 }
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57
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58 void MallocMemoryBuffer::Assign(void* buffer,
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59 size_t size,
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60 FreeFunction freeFunction)
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61 {
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62 Clear();
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63
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64 buffer_ = buffer;
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65 size_ = size;
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66 free_ = freeFunction;
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67
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68 if (size_ != 0 &&
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69 free_ == NULL)
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70 {
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71 throw OrthancException(ErrorCode_ParameterOutOfRange, "No valid free() function provided");
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72 }
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73 }
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76 void MallocMemoryBuffer::MoveToString(std::string& target)
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77 {
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78 target.resize(size_);
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79
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80 if (size_ != 0)
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81 {
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82 memcpy(&target[0], buffer_, size_);
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83 }
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85 Clear();
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86 }
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87 }