Gaudi::Accumulators::Adder< Arithmetic, atomicity::full > Struct Template Reference

Adder specialization in the case of atomicity full. More...

#include </builds/gaudi/Gaudi/GaudiKernel/include/Gaudi/Accumulators.h>

Inheritance diagram for Gaudi::Accumulators::Adder< Arithmetic, atomicity::full >:

Collaboration diagram for Gaudi::Accumulators::Adder< Arithmetic, atomicity::full >:

Static Public Member Functions
static constexpr OutputType	DefaultValue ()
static void	merge (InternalType &a, Arithmetic b) noexcept
Static Public Member Functions inherited from Gaudi::Accumulators::BaseValueHandler< Arithmetic, atomicity::full >
static constexpr OutputType	getValue (const InternalType &v) noexcept
static Arithmetic	exchange (InternalType &v, Arithmetic newv) noexcept

Additional Inherited Members
Public Types inherited from Gaudi::Accumulators::BaseValueHandler< Arithmetic, atomicity::full >
using	OutputType = Arithmetic
using	InternalType = std::atomic< Arithmetic >

Detailed Description

template<typename Arithmetic>
struct Gaudi::Accumulators::Adder< Arithmetic, atomicity::full >

Adder specialization in the case of atomicity full.

Definition at line 339 of file Accumulators.h.

Member Function Documentation

DefaultValue()

template<typename Arithmetic >

static constexpr OutputType Gaudi::Accumulators::Adder< Arithmetic, atomicity::full >::DefaultValue ( )

inlinestaticconstexpr

Definition at line 342 of file Accumulators.h.

{ return Arithmetic{}; }

merge()

template<typename Arithmetic >

static void Gaudi::Accumulators::Adder< Arithmetic, atomicity::full >::merge ( InternalType &  a, Arithmetic  b  )

inlinestaticnoexcept

Definition at line 343 of file Accumulators.h.

                                                                                {
      if ( DefaultValue() == b ) return; // avoid atomic operation if b is "0"
      if constexpr ( has_fetch_add_v<InternalType> ) {
        a.fetch_add( b, std::memory_order_relaxed );
      } else {
        auto current = BaseValueHandler<Arithmetic, atomicity::full>::getValue( a );
        while ( !a.compare_exchange_weak( current, current + b ) )
          ;
      }
    };

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The documentation for this struct was generated from the following file:

• GaudiKernel/include/Gaudi/Accumulators.h