Mercurial > hg > orthanc

comparison OrthancFramework/Sources/ChunkedBuffer.cpp @ 4044:d25f4c0fa160 framework

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
splitting code into OrthancFramework and OrthancServer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jun 2020 20:30:34 +0200
parents Core/ChunkedBuffer.cpp@94f4a18a79cc
children bf7b9edf6b81
comparison
equal deleted inserted replaced
4043:6c6239aec462 4044:d25f4c0fa160
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * In addition, as a special exception, the copyright holders of this
13 * program give permission to link the code of its release with the
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
15 * that use the same license as the "OpenSSL" library), and distribute
16 * the linked executables. You must obey the GNU General Public License
17 * in all respects for all of the code used other than "OpenSSL". If you
18 * modify file(s) with this exception, you may extend this exception to
19 * your version of the file(s), but you are not obligated to do so. If
20 * you do not wish to do so, delete this exception statement from your
21 * version. If you delete this exception statement from all source files
22 * in the program, then also delete it here.
23 *
24 * This program is distributed in the hope that it will be useful, but
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 **/
32
33
34 #include "PrecompiledHeaders.h"
35 #include "ChunkedBuffer.h"
36
37 #include <cassert>
38 #include <string.h>
39
40
41 namespace Orthanc
42 {
43 void ChunkedBuffer::Clear()
44 {
45 numBytes_ = 0;
46
47 for (Chunks::iterator it = chunks_.begin();
48 it != chunks_.end(); ++it)
49 {
50 delete *it;
51 }
52 }
53
54
55 void ChunkedBuffer::AddChunk(const void* chunkData,
56 size_t chunkSize)
57 {
58 if (chunkSize == 0)
59 {
60 return;
61 }
62 else
63 {
64 assert(chunkData != NULL);
65 chunks_.push_back(new std::string(reinterpret_cast<const char*>(chunkData), chunkSize));
66 numBytes_ += chunkSize;
67 }
68 }
69
70
71 void ChunkedBuffer::AddChunk(const std::string& chunk)
72 {
73 if (chunk.size() > 0)
74 {
75 AddChunk(&chunk[0], chunk.size());
76 }
77 }
78
79
80 void ChunkedBuffer::AddChunkDestructive(std::string& chunk)
81 {
82 size_t chunkSize = chunk.size();
83
84 if (chunkSize > 0)
85 {
86 chunks_.push_back(new std::string);
87 chunks_.back()->swap(chunk);
88 numBytes_ += chunkSize;
89 }
90 }
91
92
93 void ChunkedBuffer::Flatten(std::string& result)
94 {
95 result.resize(numBytes_);
96
97 size_t pos = 0;
98 for (Chunks::iterator it = chunks_.begin();
99 it != chunks_.end(); ++it)
100 {
101 assert(*it != NULL);
102
103 size_t s = (*it)->size();
104 if (s != 0)
105 {
106 memcpy(&result[pos], (*it)->c_str(), s);
107 pos += s;
108 }
109
110 delete *it;
111 }
112
113 chunks_.clear();
114 numBytes_ = 0;
115 }
116 }