Mercurial > hg > orthanc
view Core/TemporaryFile.cpp @ 3664:85acfcc15829 storage-commitment
sample storage commitment plugin, C++ wrapper
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 12 Feb 2020 16:06:58 +0100 |
parents | 94f4a18a79cc |
children |
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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 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 "TemporaryFile.h" #include "OrthancException.h" #include "SystemToolbox.h" #include "Toolbox.h" #include <boost/filesystem.hpp> namespace Orthanc { static std::string CreateTemporaryPath(const char* temporaryDirectory, const char* extension) { boost::filesystem::path dir; if (temporaryDirectory == NULL) { #if BOOST_HAS_FILESYSTEM_V3 == 1 dir = boost::filesystem::temp_directory_path(); #elif defined(__linux__) dir = "/tmp"; #else # error Support your platform here #endif } else { dir = temporaryDirectory; } // We use UUID to create unique path to temporary files const std::string uuid = Orthanc::Toolbox::GenerateUuid(); // New in Orthanc 1.5.8: Prefix the process ID to the name of the // temporary files, in order to locate orphan temporary files that // were left by instances of Orthanc that exited in non-clean way // https://groups.google.com/d/msg/orthanc-users/MSJX53bw6Lw/d3S3lRRLAwAJ std::string filename = "Orthanc-" + boost::lexical_cast<std::string>(SystemToolbox::GetProcessId()) + "-" + uuid; if (extension != NULL) { filename.append(extension); } dir /= filename; return dir.string(); } TemporaryFile::TemporaryFile() : path_(CreateTemporaryPath(NULL, NULL)) { } TemporaryFile::TemporaryFile(const std::string& temporaryDirectory, const std::string& extension) : path_(CreateTemporaryPath(temporaryDirectory.c_str(), extension.c_str())) { } TemporaryFile::~TemporaryFile() { boost::filesystem::remove(path_); } void TemporaryFile::Write(const std::string& content) { try { SystemToolbox::WriteFile(content, path_); } catch (OrthancException& e) { throw OrthancException(e.GetErrorCode(), "Can't create temporary file \"" + path_ + "\" with " + boost::lexical_cast<std::string>(content.size()) + " bytes: Check you have write access to the " "temporary directory and that it is not full"); } } void TemporaryFile::Read(std::string& content) const { try { SystemToolbox::ReadFile(content, path_); } catch (OrthancException& e) { throw OrthancException(e.GetErrorCode(), "Can't read temporary file \"" + path_ + "\": Another process has corrupted the temporary directory"); } } void TemporaryFile::Touch() { std::string empty; Write(empty); } }