SG::ArenaAllocatorRegistry Class Reference

Registry of allocator factories. More...

#include <ArenaAllocatorRegistry.h>

Collaboration diagram for SG::ArenaAllocatorRegistry:

Public Member Functions
size_t	registerCreator (const std::string &name, std::unique_ptr< ArenaAllocatorCreator > creator)
	Register a new allocator type. More...
size_t	lookup (const std::string &name)
	Look up the index for an allocator type name. More...
std::unique_ptr< ArenaAllocatorBase >	create (size_t i)
	Create a new instance of an allocator. More...

Static Public Member Functions
static ArenaAllocatorRegistry *	instance ()
	Return a pointer to the global ArenaAllocatorRegistry instance. More...

Private Member Functions
	ArenaAllocatorRegistry (const ArenaAllocatorRegistry &)
ArenaAllocatorRegistry &	operator= (const ArenaAllocatorRegistry &)
	ArenaAllocatorRegistry ()
	Constructor. Called only by instance. More...
	~ArenaAllocatorRegistry ()
	Destructor. Called only by instance. More...

Private Attributes
std::unique_ptr< ArenaAllocatorRegistryImpl >	m_impl
	The implementation object. More...

Friends
class	ArenaAllocatorRegistryImpl

Detailed Description

Registry of allocator factories.

See Arena.h for an overview of the arena-based memory allocators.

Each Allocator type that the application uses is registered here; we assign to each one a small integer index. We can then create an instance of the Allocator given the index. Allocators have names; we also handle finding the index for an Allocator given the name.

Definition at line 43 of file ArenaAllocatorRegistry.h.

Constructor & Destructor Documentation

ArenaAllocatorRegistry() [1/2]

SG::ArenaAllocatorRegistry::ArenaAllocatorRegistry ( const ArenaAllocatorRegistry &  )

private

ArenaAllocatorRegistry() [2/2]

SG::ArenaAllocatorRegistry::ArenaAllocatorRegistry ( )

private

Constructor. Called only by instance.

Constructor.

Definition at line 214 of file ArenaAllocatorRegistry.cxx.

  : m_impl (std::make_unique<ArenaAllocatorRegistryImpl>())
{
}

~ArenaAllocatorRegistry()

SG::ArenaAllocatorRegistry::~ArenaAllocatorRegistry ( )

private

Destructor. Called only by instance.

Destructor.

Definition at line 223 of file ArenaAllocatorRegistry.cxx.

{
}

Member Function Documentation

create()

std::unique_ptr< ArenaAllocatorBase > SG::ArenaAllocatorRegistry::create

(

size_t

i

)

Create a new instance of an allocator.

Parameters

i	The index of the allocator to create.

Returns

A newly-allocated allocator instance.

Definition at line 195 of file ArenaAllocatorRegistry.cxx.

{
  return m_impl->create (i);
}

instance()

ArenaAllocatorRegistry * SG::ArenaAllocatorRegistry::instance ( )

static

Return a pointer to the global ArenaAllocatorRegistry instance.

Definition at line 204 of file ArenaAllocatorRegistry.cxx.

{
  static ArenaAllocatorRegistry tmp ATLAS_THREAD_SAFE;
  return &tmp;
}

lookup()

size_t SG::ArenaAllocatorRegistry::lookup

(

const std::string &

name

)

Look up the index for an allocator type name.

Parameters

name	The name of the allocator type to find.

Returns

The index corresponding to the type, or std::string::npos if it hasn't yet been registered.

Definition at line 184 of file ArenaAllocatorRegistry.cxx.

{
  return m_impl->lookup (name);
}

operator=()

ArenaAllocatorRegistry& SG::ArenaAllocatorRegistry::operator= ( const ArenaAllocatorRegistry &  )

private

registerCreator()

size_t SG::ArenaAllocatorRegistry::registerCreator	(	const std::string &	name,
		std::unique_ptr< ArenaAllocatorCreator >	creator
	)

Register a new allocator type.

Parameters

name	The name of the allocator type.
creator	The factory object to create instances of this type. The registry takes ownership of this pointer.

Returns

The new integer index for this allocator type.

If the allocator type already exists, then the index of the existing one is returned (and the object passed as creator is deleted).

Definition at line 171 of file ArenaAllocatorRegistry.cxx.

{
  return m_impl->registerCreator (name, std::move (creator));
}

Friends And Related Function Documentation

ArenaAllocatorRegistryImpl

friend class ArenaAllocatorRegistryImpl

friend

Definition at line 98 of file ArenaAllocatorRegistry.h.

Member Data Documentation

m_impl

std::unique_ptr<ArenaAllocatorRegistryImpl> SG::ArenaAllocatorRegistry::m_impl

private

The implementation object.

Definition at line 85 of file ArenaAllocatorRegistry.h.

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The documentation for this class was generated from the following files:

• ArenaAllocatorRegistry.h
• ArenaAllocatorRegistry.cxx