uuid.cpp

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#include "src/common/atomic.h"

#include <sstream>

#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>
#include <boost/uuid/uuid_io.hpp>

#include "src/common/uuid.h"

namespace Common {

UString generateIDRandomString() {
    std::stringstream ss;

    ss << boost::uuids::random_generator()();

    return ss.str();
}

static boost::atomic<uint32> idNumber(1);
uint32 generateIDNumber() {
    return idNumber.fetch_add(1, boost::memory_order_relaxed);
}

static UString uint64ToString(uint64 i) {
    std::string str;
    str.reserve(20);

    do {
        str += "0123456789"[i % 10];
        i /= 10;
    } while (i);

    std::reverse(str.begin(), str.end());

    return str;
}

static boost::atomic<uint64> idNumberString(1);
UString generateIDNumberString() {
    return uint64ToString(idNumberString.fetch_add(1, boost::memory_order_relaxed));
}

} // End of namespace Common