/usr/include/OpenMS/CONCEPT/UniqueIdGenerator.h is in libopenms-dev 1.11.1-5.
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// OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2013.
//
// This software is released under a three-clause BSD license:
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// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
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// * Neither the name of any author or any participating institution
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// --------------------------------------------------------------------------
// $Maintainer: Clemens Groepl $
// $Authors: $
// --------------------------------------------------------------------------
#ifndef OPENMS_CONCEPT_UNIQUEIDGENERATOR_H
#define OPENMS_CONCEPT_UNIQUEIDGENERATOR_H
#include <OpenMS/CONCEPT/Types.h>
#include <OpenMS/DATASTRUCTURES/DateTime.h>
#include <OpenMS/DATASTRUCTURES/Param.h>
#include <iostream>
namespace OpenMS
{
/**
@brief A generator for unique ids.
The unique ids are 64-bit random unsigned random integers.
The class is implemented as a singleton.
The random generator is initialized upon startup using the current system time and date.
Collisions are not excluded by design, but extremely unlikely.
(To estimate the probability of collisions,
note that \f$ 10^9*60*60*24*365*100 / 2^{64} \doteq 0.17 \f$,
so it is unlikely you will see one in your lifetime.)
@ingroup Concept
*/
class OPENMS_DLLAPI UniqueIdGenerator
{
public:
/// Returns a new unique id
static UInt64
getUniqueId();
/// Initializes random generator using the given DateTime instead of DateTime::now(). This is intended for debugging and testing.
static void
setSeed(const DateTime &);
/// Returns a summary of internal status
static Param const &
getInfo();
private:
UniqueIdGenerator();
~UniqueIdGenerator();
static UniqueIdGenerator &
getInstance_();
void
init_(const DateTime & date_time);
Param info_;
};
} // namespace OpenMS
#endif // OPENMS_CONCEPT_UNIQUEIDGENERATOR_H
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