Mercurial > hg > orthanc
view OrthancFramework/Sources/HttpServer/FilesystemHttpSender.cpp @ 4544:ae63b301d522 Orthanc-1.7.4
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 02 Mar 2021 16:52:26 +0100 |
parents | bf7b9edf6b81 |
children | db3932f9660d |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "FilesystemHttpSender.h" #include "../OrthancException.h" static const size_t CHUNK_SIZE = 64 * 1024; // Use 64KB chunks namespace Orthanc { void FilesystemHttpSender::Initialize(const boost::filesystem::path& path) { SetContentFilename(path.filename().string()); file_.open(path.string().c_str(), std::ifstream::binary); if (!file_.is_open()) { throw OrthancException(ErrorCode_InexistentFile); } file_.seekg(0, file_.end); size_ = file_.tellg(); file_.seekg(0, file_.beg); } bool FilesystemHttpSender::ReadNextChunk() { if (chunk_.size() == 0) { chunk_.resize(CHUNK_SIZE); } file_.read(&chunk_[0], chunk_.size()); if ((file_.flags() & std::istream::failbit) || file_.gcount() < 0) { throw OrthancException(ErrorCode_CorruptedFile); } chunkSize_ = static_cast<size_t>(file_.gcount()); return chunkSize_ > 0; } }