FixedHash.cpp

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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/>.
*/
#include "FixedHash.h"
#include <ctime>
#include <boost/algorithm/string.hpp>

using namespace std;
using namespace dev;

boost::random_device dev::s_fixedHashEngine;

h128 dev::fromUUID(std::string const& _uuid)
{
        try
        {
                return h128(boost::replace_all_copy(_uuid, "-", ""));
        }
        catch (...)
        {
                return h128();
        }
}

std::string dev::toUUID(h128 const& _uuid)
{
        std::string ret = toHex(_uuid.ref());
        for (unsigned i: {20, 16, 12, 8})
                ret.insert(ret.begin() + i, '-');
        return ret;
}