utilmm::smart::ref_count::manager< Memory > Class Template Reference
[Smart pointers]

Reference counting management. More...

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

List of all members.

Public Types
typedef Memory::base_type	base_type
	public type of pointed cells
typedef Memory::mem_cell	mem_cell
	real type of pointed cells
Public Member Functions
mem_cell	manage (base_type *ptr)
	Add new pointer in management.
mem_cell	assign (mem_cell c)
	Assignment of a cell.
void	release (mem_cell c)
	Unassignement of a cell.
bool	null (mem_cell c)
	Check if null.
base_type *	get_ptr (mem_cell c)
	real pointer value.
Friends
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@laas.fr>

---

Member Typedef Documentation

template<class Memory>

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

public type of pointed cells

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

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.

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

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.

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

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

---

Friends And Related Function Documentation

template<class Memory>

friend class singleton::wrapper [friend]

---

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

• utilmm/smart/bits/ref_count_manager.hh

---