Mercurial > hg > orthanc
annotate Core/HttpServer/FilesystemHttpSender.cpp @ 2154:5d8e6fab98dd
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 16 Nov 2016 12:34:15 +0100 |
| parents | b1291df2f780 |
| children | a3a65de1840f |
| rev | line source |
|---|---|
| 208 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
| 208 | 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 | |
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32 #include "../PrecompiledHeaders.h" |
| 208 | 33 #include "FilesystemHttpSender.h" |
| 34 | |
| 1522 | 35 #include "../OrthancException.h" |
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36 |
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37 static const size_t CHUNK_SIZE = 64 * 1024; // Use 64KB chunks |
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38 |
| 208 | 39 namespace Orthanc |
| 40 { | |
| 1522 | 41 void FilesystemHttpSender::Initialize(const boost::filesystem::path& path) |
| 208 | 42 { |
| 1522 | 43 SetContentFilename(path.filename().string()); |
| 44 file_.open(path.string().c_str(), std::ifstream::binary); | |
| 45 | |
| 46 if (!file_.is_open()) | |
| 47 { | |
| 48 throw OrthancException(ErrorCode_InexistentFile); | |
| 49 } | |
| 208 | 50 |
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51 file_.seekg(0, file_.end); |
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52 size_ = file_.tellg(); |
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53 file_.seekg(0, file_.beg); |
| 217 | 54 } |
| 55 | |
| 1522 | 56 |
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57 bool FilesystemHttpSender::ReadNextChunk() |
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58 { |
| 1525 | 59 if (chunk_.size() == 0) |
| 1522 | 60 { |
| 1525 | 61 chunk_.resize(CHUNK_SIZE); |
| 1522 | 62 } |
| 63 | |
| 1525 | 64 file_.read(&chunk_[0], chunk_.size()); |
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65 |
| 1525 | 66 if ((file_.flags() & std::istream::failbit) || |
| 67 file_.gcount() < 0) | |
| 1522 | 68 { |
| 1525 | 69 throw OrthancException(ErrorCode_CorruptedFile); |
| 1522 | 70 } |
| 71 | |
| 1525 | 72 chunkSize_ = file_.gcount(); |
| 73 | |
| 74 return chunkSize_ > 0; | |
| 208 | 75 } |
| 76 } |