implements< Interfaces > Struct Template Reference

Base class used to implement the interfaces. More...

#include <GaudiKernel/implements.h>

Inheritance diagram for implements< Interfaces >:

Collaboration diagram for implements< Interfaces >:

Public Types
using	base_class = implements< Interfaces... >
	Typedef to this class. More...
using	extend_interfaces_base = extend_interfaces< Interfaces... >
	Typedef to the base of this class. More...
using	iids = typename extend_interfaces_base::ext_iids
Public Types inherited from extend_interfaces< Interfaces... >
using	ext_iids = typename Gaudi::interface_list_cat< typename Interfaces::ext_iids... >::type
	take union of the ext_iids of all Interfaces... More...

Public Member Functions
void *	i_cast (const InterfaceID &tid) const override
	Implementation of IInterface::i_cast. More...
StatusCode	queryInterface (const InterfaceID &ti, void **pp) override
	Implementation of IInterface::queryInterface. More...
std::vector< std::string >	getInterfaceNames () const override
	Implementation of IInterface::getInterfaceNames. More...
	implements ()=default
	Default constructor. More...
	implements (const implements &)
	Copy constructor (zero the reference count) More...
implements &	operator= (const implements &)
	Assignment operator (do not touch the reference count). More...
unsigned long	addRef () override
	Reference Interface instance. More...
unsigned long	release () override
	Release Interface instance. More...
unsigned long	refCount () const override
	Current reference count. More...

Protected Attributes
std::atomic_ulong	m_refCount = {0}
	Reference counter. More...

Detailed Description

template<typename... Interfaces>
struct implements< Interfaces >

Base class used to implement the interfaces.

Definition at line 9 of file implements.h.

Member Typedef Documentation

template<typename... Interfaces>

using implements< Interfaces >::base_class = implements<Interfaces...>

Typedef to this class.

Definition at line 11 of file implements.h.

template<typename... Interfaces>

using implements< Interfaces >::extend_interfaces_base = extend_interfaces<Interfaces...>

Typedef to the base of this class.

Definition at line 13 of file implements.h.

template<typename... Interfaces>

using implements< Interfaces >::iids = typename extend_interfaces_base::ext_iids

Definition at line 14 of file implements.h.

Constructor & Destructor Documentation

template<typename... Interfaces>

implements< Interfaces >::implements ( )

default

Default constructor.

template<typename... Interfaces>

implements< Interfaces >::implements ( const implements< Interfaces > &  )

inline

Copy constructor (zero the reference count)

Definition at line 33 of file implements.h.

: m_refCount{0} {}

Member Function Documentation

template<typename... Interfaces>

unsigned long implements< Interfaces >::addRef ( )

inlineoverride

Reference Interface instance.

Definition at line 39 of file implements.h.

{ return ++m_refCount; }

template<typename... Interfaces>

std::vector<std::string> implements< Interfaces >::getInterfaceNames ( ) const

inlineoverride

Implementation of IInterface::getInterfaceNames.

Definition at line 29 of file implements.h.

{ return Gaudi::getInterfaceNames( iids{} ); }

template<typename... Interfaces>

void* implements< Interfaces >::i_cast ( const InterfaceID &  tid ) const

inlineoverride

Implementation of IInterface::i_cast.

Definition at line 18 of file implements.h.

{ return Gaudi::iid_cast( tid, iids{}, this ); }

template<typename... Interfaces>

implements& implements< Interfaces >::operator= ( const implements< Interfaces > &  )

inline

Assignment operator (do not touch the reference count).

Definition at line 35 of file implements.h.

{ return *this; }

template<typename... Interfaces>

StatusCode implements< Interfaces >::queryInterface ( const InterfaceID &  ti, void **  pp  )

inlineoverride

Implementation of IInterface::queryInterface.

Definition at line 20 of file implements.h.

  {
    if ( !pp ) return StatusCode::FAILURE;
    *pp = Gaudi::iid_cast( ti, iids{}, this );
    if ( !*pp ) return StatusCode::FAILURE; /* cast failed */
    this->addRef();
    return StatusCode::SUCCESS;
  }

template<typename... Interfaces>

unsigned long implements< Interfaces >::refCount ( ) const

inlineoverride

Current reference count.

Definition at line 49 of file implements.h.

{ return m_refCount.load(); }

template<typename... Interfaces>

unsigned long implements< Interfaces >::release ( )

inlineoverride

Release Interface instance.

Definition at line 41 of file implements.h.

  {
    /* Avoid to decrement 0 */
    auto count = ( m_refCount ? --m_refCount : m_refCount.load() );
    if ( count == 0 ) delete this;
    return count;
  }

Member Data Documentation

template<typename... Interfaces>

std::atomic_ulong implements< Interfaces >::m_refCount = {0}

protected

Reference counter.

Definition at line 53 of file implements.h.

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

• GaudiKernel/GaudiKernel/implements.h