tbb::tbb_allocator< T > Class Template Reference

Meets "allocator" requirements of ISO C++ Standard, Section 20.1.5. More...

#include <tbb_allocator.h>

Collaboration diagram for tbb::tbb_allocator< T >:

Classes
struct	rebind

Public Types
enum	malloc_type { scalable, standard }
	Specifies current allocator. More...
typedef internal::allocator_type< T >::value_type	value_type
typedef value_type *	pointer
typedef const value_type *	const_pointer
typedef value_type &	reference
typedef const value_type &	const_reference
typedef size_t	size_type
typedef ptrdiff_t	difference_type

Public Member Functions
	tbb_allocator () throw ()
	tbb_allocator (const tbb_allocator &) throw ()
template<typename U >
	tbb_allocator (const tbb_allocator< U > &) throw ()
pointer	address (reference x) const
const_pointer	address (const_reference x) const
pointer	allocate (size_type n, const void *=0)
	Allocate space for n objects. More...
void	deallocate (pointer p, size_type)
	Free previously allocated block of memory. More...
size_type	max_size () const throw ()
	Largest value for which method allocate might succeed. More...
template<typename U , typename... Args>
void	construct (U *p, Args &&... args)
	Copy-construct value at location pointed to by p. More...
void	destroy (pointer p)
	Destroy value at location pointed to by p. More...

Static Public Member Functions
static malloc_type	allocator_type ()
	Returns current allocator. More...

Detailed Description

template<typename T>
class tbb::tbb_allocator< T >

Meets "allocator" requirements of ISO C++ Standard, Section 20.1.5.

The class selects the best memory allocation mechanism available from scalable_malloc and standard malloc. The members are ordered the same way they are in section 20.4.1 of the ISO C++ standard.

Definition at line 58 of file tbb_allocator.h.

Member Typedef Documentation

const_pointer

template<typename T >

typedef const value_type* tbb::tbb_allocator< T >::const_pointer

Definition at line 62 of file tbb_allocator.h.

const_reference

template<typename T >

typedef const value_type& tbb::tbb_allocator< T >::const_reference

Definition at line 64 of file tbb_allocator.h.

difference_type

template<typename T >

typedef ptrdiff_t tbb::tbb_allocator< T >::difference_type

Definition at line 66 of file tbb_allocator.h.

pointer

template<typename T >

typedef value_type* tbb::tbb_allocator< T >::pointer

Definition at line 61 of file tbb_allocator.h.

reference

template<typename T >

typedef value_type& tbb::tbb_allocator< T >::reference

Definition at line 63 of file tbb_allocator.h.

size_type

template<typename T >

typedef size_t tbb::tbb_allocator< T >::size_type

Definition at line 65 of file tbb_allocator.h.

value_type

template<typename T >

typedef internal::allocator_type<T>::value_type tbb::tbb_allocator< T >::value_type

Definition at line 60 of file tbb_allocator.h.

Member Enumeration Documentation

malloc_type

template<typename T >

enum tbb::tbb_allocator::malloc_type

Specifies current allocator.

Enumerator
scalable
standard

Definition at line 72 of file tbb_allocator.h.

                     {
        scalable,
        standard
    };

Constructor & Destructor Documentation

tbb_allocator() [1/3]

template<typename T >

tbb::tbb_allocator< T >::tbb_allocator ( ) throw ( )

inline

Definition at line 77 of file tbb_allocator.h.

{}

tbb_allocator() [2/3]

template<typename T >

tbb::tbb_allocator< T >::tbb_allocator ( const tbb_allocator< T > &  ) throw ( )

inline

Definition at line 78 of file tbb_allocator.h.

{}

tbb_allocator() [3/3]

template<typename T >

template<typename U >

tbb::tbb_allocator< T >::tbb_allocator ( const tbb_allocator< U > &  ) throw ( )

inline

Definition at line 79 of file tbb_allocator.h.

{}

Member Function Documentation

address() [1/2]

template<typename T >

pointer tbb::tbb_allocator< T >::address ( reference  x ) const

inline

Definition at line 81 of file tbb_allocator.h.

{return &x;}

address() [2/2]

template<typename T >

const_pointer tbb::tbb_allocator< T >::address ( const_reference  x ) const

inline

Definition at line 82 of file tbb_allocator.h.

{return &x;}

allocate()

template<typename T >

pointer tbb::tbb_allocator< T >::allocate ( size_type  n, const void *  = 0  )

inline

Allocate space for n objects.

Definition at line 85 of file tbb_allocator.h.

                                                      {
        return pointer(internal::allocate_via_handler_v3( n * sizeof(value_type) ));
    }

References tbb::internal::allocate_via_handler_v3().

Referenced by tbb::interface6::internal::token_helper< T, true >::create_token().

Here is the call graph for this function:

Here is the caller graph for this function:

allocator_type()

template<typename T >

static malloc_type tbb::tbb_allocator< T >::allocator_type ( )

inlinestatic

Returns current allocator.

Definition at line 116 of file tbb_allocator.h.

                                        {
        return internal::is_malloc_used_v3() ? standard : scalable;
    }

References tbb::internal::is_malloc_used_v3(), tbb::tbb_allocator< T >::scalable, and tbb::tbb_allocator< T >::standard.

Here is the call graph for this function:

construct()

template<typename T >

template<typename U , typename... Args>

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

inline

Copy-construct value at location pointed to by p.

Definition at line 103 of file tbb_allocator.h.

        { ::new((void *)p) U(std::forward<Args>(args)...); }

References p.

deallocate()

template<typename T >

void tbb::tbb_allocator< T >::deallocate ( pointer  p, size_type    )

inline

Free previously allocated block of memory.

Definition at line 90 of file tbb_allocator.h.

                                            {
        internal::deallocate_via_handler_v3(p);
    }

References tbb::internal::deallocate_via_handler_v3(), and p.

Referenced by tbb::interface6::internal::token_helper< T, true >::destroy_token().

Here is the call graph for this function:

Here is the caller graph for this function:

destroy()

template<typename T >

void tbb::tbb_allocator< T >::destroy ( pointer  p )

inline

Destroy value at location pointed to by p.

Definition at line 113 of file tbb_allocator.h.

{p->~value_type();}

References p.

Referenced by tbb::interface6::internal::token_helper< T, true >::destroy_token().

Here is the caller graph for this function:

max_size()

template<typename T >

size_type tbb::tbb_allocator< T >::max_size ( ) const throw ( )

inline

Largest value for which method allocate might succeed.

Definition at line 95 of file tbb_allocator.h.

                                       {
        size_type max = static_cast<size_type>(-1) / sizeof (value_type);
        return (max > 0 ? max : 1);
    }

References tbb::internal::max().

Here is the call graph for this function:

---

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

• tbb_allocator.h