A proxy that keeps track of the relative offset of a "pointer" from its base address. This class makes it possible to transparently use "pointers" in shared memory as easily as programming with pointers to local memory. In particular, we don't need to ensure that the base addresses of all the pointers are mapped into separate processes at the same absolute memory base address. More...

#include <Based_Pointer_T.h>

Inheritance diagram for ACE_Based_Pointer_Basic< CONCRETE >:

[legend]

Public Member Functions
	ACE_Based_Pointer_Basic (void)

	ACE_Based_Pointer_Basic (CONCRETE *initial)

	ACE_Based_Pointer_Basic (const ACE_Based_Pointer_Basic< CONCRETE > &)
	Copy constructor. More...

	ACE_Based_Pointer_Basic (const void *base_addr, int o)

void	operator= (CONCRETE *from)
	Pseudo-assignment operator. More...

void	operator= (const ACE_Based_Pointer_Basic< CONCRETE > &)
	Pseudo-assignment operator. More...

CONCRETE	operator* (void) const
	Dereference operator. More...

bool	operator< (const ACE_Based_Pointer_Basic< CONCRETE > &) const
	Less than operator. More...

bool	operator<= (const ACE_Based_Pointer_Basic< CONCRETE > &) const
	Less than or equal operator. More...

bool	operator> (const ACE_Based_Pointer_Basic< CONCRETE > &) const
	Greater than operator. More...

bool	operator>= (const ACE_Based_Pointer_Basic< CONCRETE > &) const
	Greater than or equal operator. More...

bool	operator== (const ACE_Based_Pointer_Basic< CONCRETE > &) const
	Equality operator. More...

bool	operator!= (const ACE_Based_Pointer_Basic< CONCRETE > &) const
	Inequality operator. More...

CONCRETE	operator[] (int index) const
	Subscript operator. More...

void	operator+= (int index)
	Increment operator. More...

	operator CONCRETE * () const
	Returns the underlying memory address of the smart pointer. More...

CONCRETE *	addr (void) const
	Returns the underlying memory address of the smart pointer. More...

void	dump (void) const
	Dump the state of the object. More...

Public Attributes
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks. More...

Protected Attributes
ptrdiff_t	target_

ptrdiff_t	base_offset_
	Keep track of our offset from the base pointer. More...

Detailed Description

template<class CONCRETE>
class ACE_Based_Pointer_Basic< CONCRETE >

A proxy that keeps track of the relative offset of a "pointer" from its base address. This class makes it possible to transparently use "pointers" in shared memory as easily as programming with pointers to local memory. In particular, we don't need to ensure that the base addresses of all the pointers are mapped into separate processes at the same absolute memory base address.

Constructor & Destructor Documentation

template<class CONCRETE >

ACE_Based_Pointer_Basic< CONCRETE >::ACE_Based_Pointer_Basic ( void )

This constructor initializes the <base_offset_> by asking the <ACE_BASED_POINTER_REPOSITORY> Singleton for the base address of the memory region within which it is instantiated. Two results are possible:

An <ACE_*_Memory_Pool> has stored a base address/size pair and the new based-pointer instance is located between the base address and the base address + size - 1. In this case, the repository returns the base address.
No suitable address/size pair was found. The repository assumes an address in the regular (not mapped) virtual address space of the process and returns 0. In this case, the based-pointer uses its address as an offset to it's base address 0.

template<class CONCRETE>

ACE_Based_Pointer_Basic< CONCRETE >::ACE_Based_Pointer_Basic ( CONCRETE * initial )

Initialize this object using the initial pointer. This constructor initializes the <base_offset_> by asking the <ACE_BASED_POINTER_REPOSITORY> Singleton for the base address of the memory region within which it is instantiated. Three results are possible:

An <ACE_*_Memory_Pool> has stored a base address/size pair and the new based-pointer instance is located between the base address and the base address + size - 1. In this case, the repository returns the base address.
No suitable address/size pair was found. The repository assumes an address in the regular (not mapped) virtual address space of the process and returns 0. In this case, the based-pointer uses its address as an offset to its base address 0.
If initial is 0 then set the value of <target_> to -1, which indicates a "NULL" pointer.

template<class CONCRETE>

ACE_Based_Pointer_Basic< CONCRETE >::ACE_Based_Pointer_Basic ( const ACE_Based_Pointer_Basic< CONCRETE > & )

Copy constructor.

template<class CONCRETE>

ACE_Based_Pointer_Basic< CONCRETE >::ACE_Based_Pointer_Basic	(	const void *	base_addr,
		int	o
	)

Constructor for know base address. o is only used to resolve overload ambiguity.

Member Function Documentation

template<class CONCRETE >

CONCRETE * ACE_Based_Pointer_Basic< CONCRETE >::addr ( void ) const

inline

Returns the underlying memory address of the smart pointer.

template<class CONCRETE >

void ACE_Based_Pointer_Basic< CONCRETE >::dump ( void ) const

Dump the state of the object.

template<class CONCRETE >

ACE_Based_Pointer_Basic< CONCRETE >::operator CONCRETE * ( ) const

inline

Returns the underlying memory address of the smart pointer.

template<class CONCRETE>

bool ACE_Based_Pointer_Basic< CONCRETE >::operator!= ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs ) const

inline

Inequality operator.

template<class CONCRETE >

CONCRETE ACE_Based_Pointer_Basic< CONCRETE >::operator* ( void ) const

inline

Dereference operator.

template<class CONCRETE >

void ACE_Based_Pointer_Basic< CONCRETE >::operator+= ( int index )

inline

Increment operator.

template<class CONCRETE>

bool ACE_Based_Pointer_Basic< CONCRETE >::operator< ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs ) const

inline

Less than operator.

template<class CONCRETE>

bool ACE_Based_Pointer_Basic< CONCRETE >::operator<= ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs ) const

inline

Less than or equal operator.

template<class CONCRETE>

void ACE_Based_Pointer_Basic< CONCRETE >::operator= ( CONCRETE * from )

inline

Pseudo-assignment operator.

template<class CONCRETE>

void ACE_Based_Pointer_Basic< CONCRETE >::operator= ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs )

inline

Pseudo-assignment operator.

template<class CONCRETE>

bool ACE_Based_Pointer_Basic< CONCRETE >::operator== ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs ) const

inline

Equality operator.

template<class CONCRETE>

bool ACE_Based_Pointer_Basic< CONCRETE >::operator> ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs ) const

inline

Greater than operator.

template<class CONCRETE>

bool ACE_Based_Pointer_Basic< CONCRETE >::operator>= ( const ACE_Based_Pointer_Basic< CONCRETE > & rhs ) const

inline

Greater than or equal operator.

template<class CONCRETE >

CONCRETE ACE_Based_Pointer_Basic< CONCRETE >::operator[] ( int index ) const

inline

Subscript operator.

Member Data Documentation

template<class CONCRETE>

ACE_Based_Pointer_Basic< CONCRETE >::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

template<class CONCRETE>

ptrdiff_t ACE_Based_Pointer_Basic< CONCRETE >::base_offset_

protected

Keep track of our offset from the base pointer.

template<class CONCRETE>

ptrdiff_t ACE_Based_Pointer_Basic< CONCRETE >::target_

protected

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

Public Member Functions

Public Attributes

Protected Attributes

Detailed Description

template<class CONCRETE> class ACE_Based_Pointer_Basic< CONCRETE >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class CONCRETE>
class ACE_Based_Pointer_Basic< CONCRETE >