utilmm::smart::ref_count::manager< Memory > Class Template Reference

Reference counting management. More...

#include <utilmm/smart/bits/ref_count_manager.hh>

Public Types
typedef Memory::base_type	base_type
	public type of pointed cells More...
typedef Memory::mem_cell	mem_cell
	real type of pointed cells More...

Public Member Functions
mem_cell	manage (base_type *ptr)
	Add new pointer in management. More...
mem_cell	assign (mem_cell c)
	Assignment of a cell. More...
void	release (mem_cell c)
	Unassignement of a cell. More...
bool	null (mem_cell c)
	Check if null. More...
base_type *	get_ptr (mem_cell c)
	real pointer value. More...

Friends
template<class Ty >
class	singleton::wrapper

Detailed Description

template<class Memory>
class utilmm::smart::ref_count::manager< Memory >

Reference counting management.

Parameters

Memory

a model for the memory

This class is a manager for smart::pointer that control the life time policy of memory cells managed by Memory

Note

utilmm::smart::simple_memory is a quite simple and illustrative model for Memory

Author

Frédéric Py fpy@l.nosp@m.aas..nosp@m.fr

Member Typedef Documentation

base_type

template<class Memory >

typedef Memory::base_type utilmm::smart::ref_count::manager< Memory >::base_type

public type of pointed cells

mem_cell

template<class Memory >

typedef Memory::mem_cell utilmm::smart::ref_count::manager< Memory >::mem_cell

real type of pointed cells

This type will store all the information of the reference counter it may be compatible with the std::pair<base_type,size_t>* type.

Member Function Documentation

assign()

template<class Memory >

mem_cell utilmm::smart::ref_count::manager< Memory >::assign

(

mem_cell

c

)

Assignment of a cell.

This function is called by utilmm::smart::pointer to indicate to the manager that a given cell is assigned to a new pointer.

Parameters

c	The cell assigned

Postcondition

reference counter of c is incremented by 1

Returns

c ater the operation

get_ptr()

template<class Memory >

base_type* utilmm::smart::ref_count::manager< Memory >::get_ptr ( mem_cell  c )

inline

real pointer value.

This function give an access to the real pointer value of a given cell.

Parameters

c

The cell

Returns

the pointer value of the cell

manage()

template<class Memory >

mem_cell utilmm::smart::ref_count::manager< Memory >::manage

(

base_type *

ptr

)

Add new pointer in management.

Parameters

ptr	The pointer to manage

This function is called by smart::pointer when this one wants to add a new pointer to the manager management.

Returns

The cell corresponding to this pointer.

null()

template<class Memory >

bool utilmm::smart::ref_count::manager< Memory >::null ( mem_cell  c )

inline

Check if null.

Check if a given cell points to nothing

Parameters

c	The cell to check

Return values

true	if c is null
false	else

release()

template<class Memory >

void utilmm::smart::ref_count::manager< Memory >::release

(

mem_cell

c

)

Unassignement of a cell.

This function is called by utilmm::smart::pointer to indicate that a pointer has stopped to used a given cell.

Parameters

c	The cell released

Postcondition

The counter for c is decrmented by 1 and, if this counter has reached the 0 value the cell is detroyed.

Friends And Related Function Documentation

singleton::wrapper

template<class Memory >

template<class Ty >

friend class singleton::wrapper

friend

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

• utilmm/smart/bits/ref_count_manager.hh