Mercurial > hg > orthanc
annotate Core/HttpServer/FilesystemHttpSender.cpp @ 3848:44bfcfdf42e8 transcoding
integration mainline->transcoding
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 20 Apr 2020 14:04:14 +0200 |
| parents | 94f4a18a79cc |
| children |
| rev | line source |
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| 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 |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 208 | 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 | |
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33 #include "../PrecompiledHeaders.h" |
| 208 | 34 #include "FilesystemHttpSender.h" |
| 35 | |
| 1522 | 36 #include "../OrthancException.h" |
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37 |
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38 static const size_t CHUNK_SIZE = 64 * 1024; // Use 64KB chunks |
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39 |
| 208 | 40 namespace Orthanc |
| 41 { | |
| 1522 | 42 void FilesystemHttpSender::Initialize(const boost::filesystem::path& path) |
| 208 | 43 { |
| 1522 | 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 } | |
| 208 | 51 |
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52 file_.seekg(0, file_.end); |
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53 size_ = file_.tellg(); |
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54 file_.seekg(0, file_.beg); |
| 217 | 55 } |
| 56 | |
| 1522 | 57 |
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58 bool FilesystemHttpSender::ReadNextChunk() |
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59 { |
| 1525 | 60 if (chunk_.size() == 0) |
| 1522 | 61 { |
| 1525 | 62 chunk_.resize(CHUNK_SIZE); |
| 1522 | 63 } |
| 64 | |
| 1525 | 65 file_.read(&chunk_[0], chunk_.size()); |
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66 |
| 1525 | 67 if ((file_.flags() & std::istream::failbit) || |
| 68 file_.gcount() < 0) | |
| 1522 | 69 { |
| 1525 | 70 throw OrthancException(ErrorCode_CorruptedFile); |
| 1522 | 71 } |
| 72 | |
| 2332 | 73 chunkSize_ = static_cast<size_t>(file_.gcount()); |
| 1525 | 74 |
| 75 return chunkSize_ > 0; | |
| 208 | 76 } |
| 77 } |