Mercurial > hg > orthanc-webviewer

comparison Orthanc/ChunkedBuffer.cpp @ 0:02f7a0400a91

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initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 25 Feb 2015 13:45:35 +0100
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-1:000000000000 0:02f7a0400a91
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #include "PrecompiledHeaders.h"
34 #include "ChunkedBuffer.h"
35
36 #include <cassert>
37 #include <string.h>
38
39
40 namespace Orthanc
41 {
42 void ChunkedBuffer::Clear()
43 {
44 numBytes_ = 0;
45
46 for (Chunks::iterator it = chunks_.begin();
47 it != chunks_.end(); ++it)
48 {
49 delete *it;
50 }
51 }
52
53
54 void ChunkedBuffer::AddChunk(const char* chunkData,
55 size_t chunkSize)
56 {
57 if (chunkSize == 0)
58 {
59 return;
60 }
61
62 assert(chunkData != NULL);
63 chunks_.push_back(new std::string(chunkData, chunkSize));
64 numBytes_ += chunkSize;
65 }
66
67
68 void ChunkedBuffer::AddChunk(const std::string& chunk)
69 {
70 if (chunk.size() > 0)
71 {
72 AddChunk(&chunk[0], chunk.size());
73 }
74 }
75
76
77 void ChunkedBuffer::Flatten(std::string& result)
78 {
79 result.resize(numBytes_);
80
81 size_t pos = 0;
82 for (Chunks::iterator it = chunks_.begin();
83 it != chunks_.end(); ++it)
84 {
85 assert(*it != NULL);
86
87 size_t s = (*it)->size();
88 if (s != 0)
89 {
90 memcpy(&result[pos], (*it)->c_str(), s);
91 pos += s;
92 }
93
94 delete *it;
95 }
96
97 chunks_.clear();
98 }
99 }