mirror of
https://github.com/FairRootGroup/FairMQ.git
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49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/********************************************************************************
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* Copyright (C) 2017 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#include <fairmq/tools/Unique.h>
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// We have to force boost::uuids to rely on /dev/*random instead of getrandom(2) or getentropy(3)
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// otherwise on some systems we'd get boost::uuids::entropy_error
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#define BOOST_UUID_RANDOM_PROVIDER_FORCE_POSIX
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#include <boost/uuid/uuid.hpp>
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#include <boost/uuid/uuid_generators.hpp>
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#include <boost/uuid/uuid_io.hpp>
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#include <boost/functional/hash.hpp>
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using namespace std;
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namespace fair
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{
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namespace mq
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{
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namespace tools
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{
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// generates UUID string
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string Uuid()
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{
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boost::uuids::random_generator gen;
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boost::uuids::uuid u = gen();
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return boost::uuids::to_string(u);
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}
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// generates UUID and returns its hash
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size_t UuidHash()
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{
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boost::uuids::random_generator gen;
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boost::hash<boost::uuids::uuid> uuid_hasher;
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boost::uuids::uuid u = gen();
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return uuid_hasher(u);
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}
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} /* namespace tools */
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} /* namespace mq */
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} /* namespace fair */
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