ACE_Allocator_Adapter< MALLOC > Class Template Reference

This class is an adapter that allows the ACE_Allocator to use the ACE_Malloc class below. More...

#include <Malloc_T.h>

Inheritance diagram for ACE_Allocator_Adapter< MALLOC >:

Collaboration diagram for ACE_Allocator_Adapter< MALLOC >:

Public Types
typedef MALLOC	ALLOCATOR
typedef const MALLOC::MEMORY_POOL_OPTIONS *	MEMORY_POOL_OPTIONS
Public Types inherited from ACE_Allocator
typedef size_t	size_type
	Unsigned integer type used for specifying memory block lengths.

Public Member Functions
	ACE_Allocator_Adapter (const char *pool_name=0)
	ACE_Allocator_Adapter (const char *pool_name, const char *lock_name, MEMORY_POOL_OPTIONS options=0)
	ACE_Allocator_Adapter (const wchar_t *pool_name)
	ACE_Allocator_Adapter (const wchar_t *pool_name, const wchar_t *lock_name, MEMORY_POOL_OPTIONS options=0)
virtual	~ACE_Allocator_Adapter ()
	Destructor.
virtual void *	malloc (size_t nbytes)
	Allocate nbytes, but don't give them any initial value.
virtual void *	calloc (size_t nbytes, char initial_value='\0')
	Allocate nbytes, giving them all an initial_value.
virtual void *	calloc (size_t n_elem, size_t elem_size, char initial_value='\0')
virtual void	free (void *ptr)
	Free ptr (must have been allocated by ACE_Allocator::malloc()).
virtual int	remove ()
	Remove any resources associated with this memory manager.
virtual int	bind (const char *name, void *pointer, int duplicates=0)
virtual int	trybind (const char *name, void *&pointer)
virtual int	find (const char *name, void *&pointer)
virtual int	find (const char *name)
	Returns 0 if the name is in the mapping and -1 if not.
virtual int	unbind (const char *name)
virtual int	unbind (const char *name, void *&pointer)
virtual int	sync (ssize_t len=-1, int flags=MS_SYNC)
virtual int	sync (void *addr, size_t len, int flags=MS_SYNC)
virtual int	protect (ssize_t len=-1, int prot=PROT_RDWR)
virtual int	protect (void *addr, size_t len, int prot=PROT_RDWR)
ALLOCATOR &	alloc ()
	Returns the underlying allocator.
virtual void	dump () const
	Dump the state of the object.
Public Member Functions inherited from ACE_Allocator
	ACE_Allocator ()
	"No-op" constructor (needed to make certain compilers happy).
virtual	~ACE_Allocator ()
	Virtual destructor.

Public Attributes
	ACE_ALLOC_HOOK_DECLARE

Private Attributes
ALLOCATOR	allocator_
	ALLOCATOR instance, which is owned by the adapter.

Additional Inherited Members
Static Public Member Functions inherited from ACE_Allocator
static ACE_Allocator *	instance ()
	Get pointer to a default ACE_Allocator.
static ACE_Allocator *	instance (ACE_Allocator *)
static void	close_singleton ()
	Delete the dynamically allocated Singleton.

Detailed Description

template<class MALLOC>
class ACE_Allocator_Adapter< MALLOC >

This class is an adapter that allows the ACE_Allocator to use the ACE_Malloc class below.

Member Typedef Documentation

ALLOCATOR

template<class MALLOC>

typedef MALLOC ACE_Allocator_Adapter< MALLOC >::ALLOCATOR

MEMORY_POOL_OPTIONS

template<class MALLOC>

typedef const MALLOC::MEMORY_POOL_OPTIONS* ACE_Allocator_Adapter< MALLOC >::MEMORY_POOL_OPTIONS

Constructor & Destructor Documentation

ACE_Allocator_Adapter() [1/4]

template<class MALLOC>

ACE_Allocator_Adapter< MALLOC >::ACE_Allocator_Adapter

(

const char *

pool_name = 0

)

Note that pool_name should be located in a directory with the appropriate visibility and protection so that all processes that need to access it can do so.

ACE_Allocator_Adapter() [2/4]

template<class MALLOC>

ACE_Allocator_Adapter< MALLOC >::ACE_Allocator_Adapter	(	const char *	pool_name,
		const char *	lock_name,
		MEMORY_POOL_OPTIONS	options = 0 )

Note that pool_name should be located in a directory with the appropriate visibility and protection so that all processes that need to access it can do so.

ACE_Allocator_Adapter() [3/4]

template<class MALLOC>

ACE_Allocator_Adapter< MALLOC >::ACE_Allocator_Adapter

(

const wchar_t *

pool_name

)

Note that pool_name should be located in a directory with the appropriate visibility and protection so that all processes that need to access it can do so.

ACE_Allocator_Adapter() [4/4]

template<class MALLOC>

ACE_Allocator_Adapter< MALLOC >::ACE_Allocator_Adapter	(	const wchar_t *	pool_name,
		const wchar_t *	lock_name,
		MEMORY_POOL_OPTIONS	options = 0 )

Note that pool_name should be located in a directory with the appropriate visibility and protection so that all processes that need to access it can do so.

~ACE_Allocator_Adapter()

template<class MALLOC>

ACE_Allocator_Adapter< MALLOC >::~ACE_Allocator_Adapter ( )

virtual

Destructor.

Member Function Documentation

alloc()

template<class MALLOC>

MALLOC & ACE_Allocator_Adapter< MALLOC >::alloc

(

)

Returns the underlying allocator.

bind()

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::bind ( const char * name, void * pointer, int duplicates = 0 )

virtual

Associate name with pointer. If duplicates == 0 then do not allow duplicate name/pointer associations, else if duplicates != 0 then allow duplicate name/pointer associations. Returns 0 if successfully binds (1) a previously unbound name or (2) duplicates != 0, returns 1 if trying to bind a previously bound name and duplicates == 0, else returns -1 if a resource failure occurs.

Implements ACE_Allocator.

calloc() [1/2]

template<class MALLOC>

void * ACE_Allocator_Adapter< MALLOC >::calloc ( size_t n_elem, size_t elem_size, char initial_value = '\0' )

virtual

Allocate n_elem each of size elem_size, giving them initial_value.

Implements ACE_Allocator.

calloc() [2/2]

template<class MALLOC>

void * ACE_Allocator_Adapter< MALLOC >::calloc ( size_t nbytes, char initial_value = '\0' )

virtual

Allocate nbytes, giving them all an initial_value.

Implements ACE_Allocator.

dump()

template<class MALLOC>

void ACE_Allocator_Adapter< MALLOC >::dump ( ) const

virtual

Dump the state of the object.

Implements ACE_Allocator.

find() [1/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::find ( const char * name )

virtual

Returns 0 if the name is in the mapping and -1 if not.

Implements ACE_Allocator.

find() [2/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::find ( const char * name, void *& pointer )

virtual

Locate name and pass out parameter via pointer. If found, return 0, returns -1 if name isn't found.

Implements ACE_Allocator.

free()

template<class MALLOC>

void ACE_Allocator_Adapter< MALLOC >::free ( void * ptr )

virtual

Free ptr (must have been allocated by ACE_Allocator::malloc()).

Implements ACE_Allocator.

malloc()

template<class MALLOC>

virtual void * ACE_Allocator_Adapter< MALLOC >::malloc ( size_t nbytes )

virtual

Allocate nbytes, but don't give them any initial value.

Implements ACE_Allocator.

protect() [1/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::protect ( ssize_t len = -1, int prot = PROT_RDWR )

virtual

Change the protection of the pages of the mapped region to prot starting at this->base_addr_ up to len bytes. If len == -1 then change protection of all pages in the mapped region.

Implements ACE_Allocator.

protect() [2/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::protect ( void * addr, size_t len, int prot = PROT_RDWR )

virtual

Change the protection of the pages of the mapped region to prot starting at addr up to len bytes.

Implements ACE_Allocator.

remove()

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::remove ( )

virtual

Remove any resources associated with this memory manager.

Implements ACE_Allocator.

sync() [1/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::sync ( ssize_t len = -1, int flags = MS_SYNC )

virtual

Sync len bytes of the memory region to the backing store starting at this->base_addr_. If len == -1 then sync the whole region.

Implements ACE_Allocator.

sync() [2/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::sync ( void * addr, size_t len, int flags = MS_SYNC )

virtual

Sync len bytes of the memory region to the backing store starting at addr_.

Implements ACE_Allocator.

trybind()

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::trybind ( const char * name, void *& pointer )

virtual

Associate name with pointer. Does not allow duplicate name/pointer associations. Returns 0 if successfully binds (1) a previously unbound name, 1 if trying to bind a previously bound name, or returns -1 if a resource failure occurs. When this call returns, pointer's value will always reference the void * that name is associated with. Thus, if the caller needs to use pointer (e.g., to free it) a copy must be maintained by the caller.

Implements ACE_Allocator.

unbind() [1/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::unbind ( const char * name )

virtual

Unbind (remove) the name from the map. Don't return the pointer to the caller

Implements ACE_Allocator.

unbind() [2/2]

template<class MALLOC>

int ACE_Allocator_Adapter< MALLOC >::unbind ( const char * name, void *& pointer )

virtual

Break any association of name. Returns the value of pointer in case the caller needs to deallocate memory.

Implements ACE_Allocator.

Member Data Documentation

ACE_ALLOC_HOOK_DECLARE

template<class MALLOC>

ACE_Allocator_Adapter< MALLOC >::ACE_ALLOC_HOOK_DECLARE

allocator_

template<class MALLOC>

ALLOCATOR ACE_Allocator_Adapter< MALLOC >::allocator_

private

ALLOCATOR instance, which is owned by the adapter.

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

• Malloc_T.h
• Malloc_T.cpp