memory::PFS_allocator< T > Class Template Reference

Allocator class for instrumenting allocated memory with Performance Schema keys. More...

#include <unique_ptr.h>

Private Types
using	value_type = T
using	size_type = size_t

Private Member Functions
	PFS_allocator (PSI_memory_key key)
	Constructor for the class that takes the PFS key to be used. More...
template<typename U >
	PFS_allocator (PFS_allocator< U > const &rhs) noexcept
	Copy constructor. More...
template<typename U >
	PFS_allocator (PFS_allocator< U > &&rhs) noexcept
	Move constructor. More...
PSI_memory_key	key () const
	Retrieves the PFS for this allocator object. More...
T *	allocate (std::size_t n)
	Allocate n bytes and return a pointer to the beginning of the allocated memory. More...
void	deallocate (T *p, std::size_t n) noexcept
	Deallocates the n bytes stored in the memory pointer p is pointing to. More...
template<class U , class... Args>
void	construct (U *p, Args &&... args)
	In-place constructs an object of class U in the memory pointed by p. More...
void	destroy (T *p)
	In-place invokes the destructor for class T on object pointed by p. More...
size_type	max_size () const
	The maximum size available to allocate. More...

Private Attributes
PSI_memory_key	m_key
	The PFS key to be used to allocate memory. More...

Detailed Description

template<typename T>
class memory::PFS_allocator< T >

Allocator class for instrumenting allocated memory with Performance Schema keys.

Member Typedef Documentation

size_type

template<typename T >

using memory::PFS_allocator< T >::size_type = size_t

private

value_type

template<typename T >

using memory::PFS_allocator< T >::value_type = T

private

Constructor & Destructor Documentation

PFS_allocator() [1/3]

template<typename T >

memory::PFS_allocator< T >::PFS_allocator ( PSI_memory_key  key )

private

Constructor for the class that takes the PFS key to be used.

Parameters

key	The PFS key to be used.

PFS_allocator() [2/3]

template<typename T >

template<typename U >

memory::PFS_allocator< T >::PFS_allocator ( PFS_allocator< U > const &  rhs )

privatenoexcept

Copy constructor.

Parameters

rhs	The object to copy from.

PFS_allocator() [3/3]

template<typename T >

template<typename U >

memory::PFS_allocator< T >::PFS_allocator ( PFS_allocator< U > &&  rhs )

privatenoexcept

Move constructor.

Parameters

rhs	The object to move from.

Member Function Documentation

allocate()

template<typename T >

T * memory::PFS_allocator< T >::allocate ( std::size_t  n )

private

Allocate n bytes and return a pointer to the beginning of the allocated memory.

Parameters

n	The size of the memory to allocate.

Returns

A pointer to the beginning of the allocated memory.

construct()

template<typename T >

template<class U , class... Args>

void memory::PFS_allocator< T >::construct ( U *  p, Args &&...  args  )

private

In-place constructs an object of class U in the memory pointed by p.

Parameters

p	The pointer to the beginning of the memory to construct the object in.
args	The parameters to be used with the U constructor.

deallocate()

template<typename T >

void memory::PFS_allocator< T >::deallocate ( T *  p, std::size_t  n  )

privatenoexcept

Deallocates the n bytes stored in the memory pointer p is pointing to.

Parameters

p	The pointer to the beginning of the memory to deallocate.
n	The size of the memory to deallocate.

destroy()

template<typename T >

void memory::PFS_allocator< T >::destroy ( T *  p )

private

In-place invokes the destructor for class T on object pointed by p.

Parameters

p	The object pointer to invoke the destructor on.

key()

template<typename T >

PSI_memory_key memory::PFS_allocator< T >::key

private

Retrieves the PFS for this allocator object.

Returns

The PFS key.

max_size()

template<typename T >

size_t memory::PFS_allocator< T >::max_size

private

The maximum size available to allocate.

Returns

The maximum size available to allocate.

Member Data Documentation

m_key

template<typename T >

PSI_memory_key memory::PFS_allocator< T >::m_key

private

The PFS key to be used to allocate memory.

---

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

• sql/memory/unique_ptr.h