The Gaudi Framework  v33r1 (b1225454)
RndmEngine.h
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1 /***********************************************************************************\
2 * (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
3 * *
4 * This software is distributed under the terms of the Apache version 2 licence, *
5 * copied verbatim in the file "LICENSE". *
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7 * In applying this licence, CERN does not waive the privileges and immunities *
8 * granted to it by virtue of its status as an Intergovernmental Organization *
9 * or submit itself to any jurisdiction. *
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11 //====================================================================
12 // Random Engine definition
13 //--------------------------------------------------------------------
14 //
15 // Package : Gaudi/RndmGenSvc ( The LHCb Offline System)
16 // Author : M.Frank
17 //====================================================================
18 #ifndef GAUDI_RNDMGENSVC_RNDMENGINE_H
19 #define GAUDI_RNDMGENSVC_RNDMENGINE_H 1
20 
21 // STL include files
22 #include <vector>
23 
24 // Framework include files
26 #include "GaudiKernel/ISerialize.h"
27 #include "GaudiKernel/Service.h"
28 
52 class RndmEngine : public extends<Service, IRndmEngine, ISerialize> {
53 protected:
55  using extends::extends;
56 
57 public:
59  StatusCode initialize() override;
61  double rndm() const override;
68  StatusCode rndmArray( std::vector<double>& array, long howmany, long start = 0 ) const override;
73  StreamBuffer& serialize( StreamBuffer& str ) override;
78  StreamBuffer& serialize( StreamBuffer& str ) const override;
79 };
80 
81 #endif // GAUDI_RNDMGENSVC_RNDMENGINE_H
StreamBuffer & serialize(StreamBuffer &str) override
Input serialization from stream buffer.
Definition: RndmEngine.cpp:49
StatusCode rndmArray(std::vector< double > &array, long howmany, long start=0) const override
Multiple shots returning vector with flat random numbers.
Definition: RndmEngine.cpp:63
StatusCode start() override
Definition: Service.cpp:139
The stream buffer is a small object collecting object data.
Definition: StreamBuffer.h:51
double rndm() const override
Single shot returning single random number.
Definition: RndmEngine.cpp:55
This class is used for returning status codes from appropriate routines.
Definition: StatusCode.h:61
StatusCode initialize() override
Service override: initialization.
Definition: RndmEngine.cpp:41
struct GAUDI_API array
Parametrisation class for redirection array - like implementation.
Base class used to extend a class implementing other interfaces.
Definition: extends.h:20
Random Generator engine definition.
Definition: RndmEngine.h:52