Mercurial > hg > orthanc
comparison OrthancFramework/Sources/HttpServer/FilesystemHttpSender.cpp @ 4044:d25f4c0fa160 framework
splitting code into OrthancFramework and OrthancServer
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 10 Jun 2020 20:30:34 +0200 |
parents | Core/HttpServer/FilesystemHttpSender.cpp@94f4a18a79cc |
children | bf7b9edf6b81 |
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4043:6c6239aec462 | 4044:d25f4c0fa160 |
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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 #include "../PrecompiledHeaders.h" | |
34 #include "FilesystemHttpSender.h" | |
35 | |
36 #include "../OrthancException.h" | |
37 | |
38 static const size_t CHUNK_SIZE = 64 * 1024; // Use 64KB chunks | |
39 | |
40 namespace Orthanc | |
41 { | |
42 void FilesystemHttpSender::Initialize(const boost::filesystem::path& path) | |
43 { | |
44 SetContentFilename(path.filename().string()); | |
45 file_.open(path.string().c_str(), std::ifstream::binary); | |
46 | |
47 if (!file_.is_open()) | |
48 { | |
49 throw OrthancException(ErrorCode_InexistentFile); | |
50 } | |
51 | |
52 file_.seekg(0, file_.end); | |
53 size_ = file_.tellg(); | |
54 file_.seekg(0, file_.beg); | |
55 } | |
56 | |
57 | |
58 bool FilesystemHttpSender::ReadNextChunk() | |
59 { | |
60 if (chunk_.size() == 0) | |
61 { | |
62 chunk_.resize(CHUNK_SIZE); | |
63 } | |
64 | |
65 file_.read(&chunk_[0], chunk_.size()); | |
66 | |
67 if ((file_.flags() & std::istream::failbit) || | |
68 file_.gcount() < 0) | |
69 { | |
70 throw OrthancException(ErrorCode_CorruptedFile); | |
71 } | |
72 | |
73 chunkSize_ = static_cast<size_t>(file_.gcount()); | |
74 | |
75 return chunkSize_ > 0; | |
76 } | |
77 } |