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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file TransientDirectory.cpp
* @author Marek Kotewicz <marek@ethdev.com>
* @date 2015
*/
#include <thread>
#include <boost/filesystem.hpp>
#include "Exceptions.h"
#include "TransientDirectory.h"
#include "CommonIO.h"
#include "Log.h"
using namespace std;
using namespace dev;
TransientDirectory::TransientDirectory():
TransientDirectory((boost::filesystem::temp_directory_path() / "eth_transient" / toString(FixedHash<4>::random())).string())
{}
TransientDirectory::TransientDirectory(std::string const& _path):
m_path(_path)
{
// we never ever want to delete a directory (including all its contents) that we did not create ourselves.
if (boost::filesystem::exists(m_path))
BOOST_THROW_EXCEPTION(FileError());
boost::filesystem::create_directories(m_path);
}
TransientDirectory::~TransientDirectory()
{
boost::system::error_code ec;
boost::filesystem::remove_all(m_path, ec);
if (!ec)
return;
// In some cases, antivirus runnig on Windows will scan all the newly created directories.
// As a consequence, directory is locked and can not be deleted immediately.
// Retry after 10 milliseconds usually is successful.
// This will help our tests run smoothly in such environment.
this_thread::sleep_for(chrono::milliseconds(10));
ec.clear();
boost::filesystem::remove_all(m_path, ec);
if (!ec)
cwarn << "Failed to delete directory '" << m_path << "': " << ec.message();
}