RTT::os::local_allocator< T, Alloc > Class Template Reference

#include <oro_allocator.hpp>

Classes
struct	pool_wrapper_type
struct	rebind

Public Types
typedef Alloc::const_pointer	const_pointer
typedef Alloc::const_reference	const_reference
typedef Alloc::difference_type	difference_type
typedef Alloc::pointer	pointer
typedef Alloc::reference	reference
typedef Alloc::size_type	size_type
typedef Alloc::value_type	value_type

Public Member Functions
pointer	address (reference x) const
const_pointer	address (const_reference x) const
pointer	allocate (size_type n, const_pointer hint=0)
void	construct (pointer p, const value_type &x)
void	deallocate (pointer p, size_type n)
void	destroy (pointer p)
void	grow (size_type n, const_pointer hint=0)
	local_allocator ()
	local_allocator (const local_allocator &)
template<class U , class A >
	local_allocator (const local_allocator< U, A > &)
size_type	max_size () const
void	operator= (const local_allocator &)
void	shrink (size_type n)
	~local_allocator ()

Private Types
typedef pool_type::const_iterator	pool_cit
typedef pool_type::iterator	pool_it
typedef std::multimap< size_t, pointer >	pool_type

Private Member Functions
pointer	_grow (size_type n, const_pointer hint=0)
void	_shrink (pointer t, size_type n)

Private Attributes
pool_wrapper_type	pool
Mutex	pool_lock

Detailed Description

template<class T, class Alloc = std::allocator<T>>
class RTT::os::local_allocator< T, Alloc >

A simple local allocator which keeps a small pool which you can grow manually with grow(). It delegates allocation to the Alloc for each allocation request, also if the pool is empty. The pool works on a per-type basis globally (static !). The pool is thus not per-object. A per-object allocator is not allowed by the standard. The pool is deallocated upon global destruction.

Parameters

T	the type to allocate memory for
Alloc	the allocator to delegate allocation to.

Definition at line 64 of file oro_allocator.hpp.

Member Typedef Documentation

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::const_pointer RTT::os::local_allocator< T, Alloc >::const_pointer

Definition at line 69 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::const_reference RTT::os::local_allocator< T, Alloc >::const_reference

Definition at line 71 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::difference_type RTT::os::local_allocator< T, Alloc >::difference_type

Definition at line 73 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::pointer RTT::os::local_allocator< T, Alloc >::pointer

Definition at line 68 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef pool_type::const_iterator RTT::os::local_allocator< T, Alloc >::pool_cit

private

Definition at line 195 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef pool_type::iterator RTT::os::local_allocator< T, Alloc >::pool_it

private

Definition at line 194 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef std::multimap< size_t, pointer> RTT::os::local_allocator< T, Alloc >::pool_type

private

Definition at line 193 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::reference RTT::os::local_allocator< T, Alloc >::reference

Definition at line 70 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::size_type RTT::os::local_allocator< T, Alloc >::size_type

Definition at line 72 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

typedef Alloc::value_type RTT::os::local_allocator< T, Alloc >::value_type

Definition at line 67 of file oro_allocator.hpp.

Constructor & Destructor Documentation

template<class T, class Alloc = std::allocator<T>>

RTT::os::local_allocator< T, Alloc >::local_allocator ( )

inline

Definition at line 168 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

RTT::os::local_allocator< T, Alloc >::local_allocator ( const local_allocator< T, Alloc > &  )

inline

Definition at line 169 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

RTT::os::local_allocator< T, Alloc >::~local_allocator ( )

inline

Definition at line 170 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

template<class U , class A >

RTT::os::local_allocator< T, Alloc >::local_allocator ( const local_allocator< U, A > &  )

inline

Definition at line 172 of file oro_allocator.hpp.

Member Function Documentation

template<class T, class Alloc = std::allocator<T>>

pointer RTT::os::local_allocator< T, Alloc >::_grow ( size_type  n, const_pointer  hint = 0  )

inlineprivate

Allocate for at least n additional items.

Definition at line 184 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::_shrink ( pointer  t, size_type  n  )

inlineprivate

Definition at line 188 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

pointer RTT::os::local_allocator< T, Alloc >::address ( reference  x ) const

inline

Definition at line 76 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

const_pointer RTT::os::local_allocator< T, Alloc >::address ( const_reference  x ) const

inline

Definition at line 80 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

pointer RTT::os::local_allocator< T, Alloc >::allocate ( size_type  n, const_pointer  hint = 0  )

inline

Definition at line 84 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::construct ( pointer  p, const value_type &  x  )

inline

Definition at line 132 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::deallocate ( pointer  p, size_type  n  )

inline

Definition at line 110 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::destroy ( pointer  p )

inline

Definition at line 136 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::grow ( size_type  n, const_pointer  hint = 0  )

inline

Grow local pool with room for at least n additional items.

Definition at line 141 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

size_type RTT::os::local_allocator< T, Alloc >::max_size ( ) const

inline

Definition at line 128 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::operator= ( const local_allocator< T, Alloc > &  )

inline

Definition at line 177 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

void RTT::os::local_allocator< T, Alloc >::shrink ( size_type  n )

inline

Shrink local pool with n items.

Definition at line 151 of file oro_allocator.hpp.

Member Data Documentation

template<class T, class Alloc = std::allocator<T>>

pool_wrapper_type RTT::os::local_allocator< T, Alloc >::pool

private

Definition at line 206 of file oro_allocator.hpp.

template<class T, class Alloc = std::allocator<T>>

Mutex RTT::os::local_allocator< T, Alloc >::pool_lock

private

Definition at line 180 of file oro_allocator.hpp.

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

• oro_allocator.hpp