eic-opticks/sysrap/SRngSpec.hh

0001 #pragma once
0002 /**
0003 SRngSpec
0004 ==================
0005
0006 **/
0007
0008 #include <cstddef>
0009 #include "plog/Severity.h"
0010 #include "SYSRAP_API_EXPORT.hh"
0011
0012 class SYSRAP_API SRngSpec
0013 {
0014     public:
0015         static constexpr const char* PREFIX = "QCurandState" ;
0016         static const plog::Severity LEVEL ;
0017         static const char* DefaultRngDir() ;
0018         static const char* CURANDStatePath(const char* rngdir=NULL, unsigned rngmax=3000000, unsigned long long seed=0, unsigned long long offset=0 );
0019     public:
0020         SRngSpec(unsigned rngmax, unsigned long long seed, unsigned long long offset);
0021
0022         const char* getCURANDStatePath(const char* rngdir=NULL) const ;
0023         bool        isValid(const char* rngdir=NULL) const ;
0024         std::string desc() const ;
0025     private:
0026         unsigned           m_rngmax ;
0027         unsigned long long m_seed ;
0028         unsigned long long m_offset ;
0029 };
0030
0031