Mercurial > hg > orthanc
view Core/HttpServer/FilesystemHttpSender.cpp @ 2735:d43c669cc93d
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 13 Jul 2018 15:47:33 +0200 |
parents | 878b59270859 |
children | 4e43e67f8ecf |
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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) 2017-2018 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * 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 * General Public License for more details. * * You should have received a copy of the GNU 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; } }