Hypertable::PageArenaAllocator< T, ArenaT > Struct Template Reference

The PageArenaAllocator is a STL allocator based on PageArena. More...

#include <PageArenaAllocator.h>

Inheritance diagram for Hypertable::PageArenaAllocator< T, ArenaT >:

Collaboration diagram for Hypertable::PageArenaAllocator< T, ArenaT >:

Classes
struct	rebind

Public Types
typedef ArenaAllocatorBase< T, ArenaT >	Base
typedef Base::pointer	pointer
typedef Base::size_type	size_type
Public Types inherited from Hypertable::ArenaAllocatorBase< T, ArenaT >
typedef Base::pointer	pointer
typedef Base::size_type	size_type
Public Types inherited from Hypertable::AllocatorBase< T >
typedef size_t	size_type
typedef ptrdiff_t	difference_type
typedef T *	pointer
typedef const T *	const_pointer
typedef T &	reference
typedef const T &	const_reference
typedef T	value_type

Public Member Functions
	PageArenaAllocator ()
	PageArenaAllocator (ArenaT &arena)
template<typename U >
	PageArenaAllocator (const PageArenaAllocator< U, ArenaT > &copy)
	Copy constructor. More...
pointer	allocate (size_type sz)
Public Member Functions inherited from Hypertable::ArenaAllocatorBase< T, ArenaT >
	ArenaAllocatorBase ()
	Default constructor; creates an empty object. More...
	ArenaAllocatorBase (ArenaT &arena)
	Constructor; takes ownership of a pointer to a memory arena. More...
template<typename U >
	ArenaAllocatorBase (const ArenaAllocatorBase< U, ArenaT > &copy)
	Copy Constructor; copies the memory arena. More...
void	check_allocate_size (size_type sz) const
	Sanity check the size of the requested buffer; if it's too large then most likely this is a bug in the application. More...
pointer	default_allocate (size_type sz)
	Allocate an array of objects using the regular operator new. More...
void	deallocate (pointer p, size_type sz)
	Deletes allocated objects unless an Arena Allocator was used (in this case the function is a nop) More...
template<typename U >
bool	operator== (const ArenaAllocatorBase< U, ArenaT > &x) const
	operator == returns true if the arena pointers are equal More...
template<typename U >
bool	operator!= (const ArenaAllocatorBase< U, ArenaT > &x) const
	operator != returns true if the arena pointers are not equal More...
template<typename U >
void	swap (ArenaAllocatorBase< U, ArenaT > &other)
	Swaps the memory arena from another allocator with the arena of 'this' allocator. More...
ArenaT *	arena () const
	Returns a pointer to the Arena. More...
void	set_arena (ArenaT *arena)
	Sets the Arena pointer. More...
Public Member Functions inherited from Hypertable::AllocatorBase< T >
pointer	address (reference x) const
	Returns a pointer to an object of type T. More...
const_pointer	address (const_reference x) const
	Returns a const pointer to an object of type T. More...
size_type	max_size () const throw ()
	Returns the maximum number of objects that this Allocator can allocate; used to check for bad allocations. More...
template<class U , class... Args>
void	construct (U *p, Args &&...args)
	Creates a new object instance using placement new and the copy constructor. More...
void	construct (pointer p)
	Creates a new object instance using placement new and the default constructor. More...
void	destroy (pointer p)
	Calls the destructor of an object (unless it's a POD) More...

Detailed Description

template<typename T, class ArenaT = PageArena<>>
struct Hypertable::PageArenaAllocator< T, ArenaT >

The PageArenaAllocator is a STL allocator based on PageArena.

Do not use directly but when instantiating STL containers, i.e.

std::vector<int, PageArenaAllocator<int> > foo;

Definition at line 47 of file PageArenaAllocator.h.

Member Typedef Documentation

template<typename T, class ArenaT = PageArena<>>

typedef ArenaAllocatorBase<T, ArenaT> Hypertable::PageArenaAllocator< T, ArenaT >::Base

Definition at line 48 of file PageArenaAllocator.h.

template<typename T, class ArenaT = PageArena<>>

typedef Base::pointer Hypertable::PageArenaAllocator< T, ArenaT >::pointer

Definition at line 49 of file PageArenaAllocator.h.

template<typename T, class ArenaT = PageArena<>>

typedef Base::size_type Hypertable::PageArenaAllocator< T, ArenaT >::size_type

Definition at line 50 of file PageArenaAllocator.h.

Constructor & Destructor Documentation

template<typename T, class ArenaT = PageArena<>>

Hypertable::PageArenaAllocator< T, ArenaT >::PageArenaAllocator ( )

inline

Definition at line 56 of file PageArenaAllocator.h.

template<typename T, class ArenaT = PageArena<>>

Hypertable::PageArenaAllocator< T, ArenaT >::PageArenaAllocator ( ArenaT &  arena )

inline

Definition at line 57 of file PageArenaAllocator.h.

template<typename T, class ArenaT = PageArena<>>

template<typename U >

Hypertable::PageArenaAllocator< T, ArenaT >::PageArenaAllocator ( const PageArenaAllocator< U, ArenaT > &  copy )

inline

Copy constructor.

Definition at line 61 of file PageArenaAllocator.h.

Member Function Documentation

template<typename T, class ArenaT = PageArena<>>

pointer Hypertable::PageArenaAllocator< T, ArenaT >::allocate ( size_type  sz )

inline

Definition at line 65 of file PageArenaAllocator.h.

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

• /home/doug/src/hypertable/src/cc/Common/PageArenaAllocator.h