ACE_Shared_Memory_SV Class Reference

Shared memory wrapper based on System V shared memory. More...

#include <Shared_Memory_SV.h>

Inheritance diagram for ACE_Shared_Memory_SV:

Collaboration diagram for ACE_Shared_Memory_SV:

Public Types
enum	{ ACE_CREATE = IPC_CREAT , ACE_OPEN = 0 }

Public Member Functions
	ACE_Shared_Memory_SV ()
	ACE_Shared_Memory_SV (key_t id, size_t length, int create=ACE_Shared_Memory_SV::ACE_OPEN, int perms=ACE_DEFAULT_FILE_PERMS, void *addr=0, int flags=0)
int	open (key_t id, size_t length, int create=ACE_Shared_Memory_SV::ACE_OPEN, int perms=ACE_DEFAULT_FILE_PERMS, void *addr=0, int flags=0)
virtual int	close ()
	Close down the shared memory segment.
virtual int	remove ()
	Remove the underlying shared memory segment.
virtual void *	malloc (size_t=0)
	Create a new chuck of memory containing size bytes.
virtual int	free (void *p)
	Free a chuck of memory allocated by <ACE_Shared_Memory_SV::malloc>.
virtual size_t	get_segment_size () const
	Return the size of the shared memory segment.
virtual ACE_HANDLE	get_id () const
void	dump () const
	Dump the state of an object.
Public Member Functions inherited from ACE_Shared_Memory
virtual	~ACE_Shared_Memory ()

Public Attributes
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks.

Private Attributes
ACE_SV_Shared_Memory	shared_memory_

Detailed Description

Shared memory wrapper based on System V shared memory.

This class provides a very simple-minded shared memory manager. We strongly recommend that you do NOT use this class. Instead, please use ACE_Malloc, which has much more powerful capabilities.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
ACE_CREATE
ACE_OPEN

Constructor & Destructor Documentation

ACE_Shared_Memory_SV() [1/2]

ACE_Shared_Memory_SV::ACE_Shared_Memory_SV ( )

inline

ACE_Shared_Memory_SV() [2/2]

ACE_Shared_Memory_SV::ACE_Shared_Memory_SV	(	key_t	id,
		size_t	length,
		int	create = ACE_Shared_Memory_SV::ACE_OPEN,
		int	perms = ACE_DEFAULT_FILE_PERMS,
		void *	addr = 0,
		int	flags = 0 )

Member Function Documentation

close()

int ACE_Shared_Memory_SV::close ( )

virtual

Close down the shared memory segment.

Closes (detaches) the shared memory segment.

Implements ACE_Shared_Memory.

dump()

void ACE_Shared_Memory_SV::dump

(

)

const

Dump the state of an object.

free()

int ACE_Shared_Memory_SV::free ( void * p )

virtual

Free a chuck of memory allocated by <ACE_Shared_Memory_SV::malloc>.

Implements ACE_Shared_Memory.

get_id()

ACE_HANDLE ACE_Shared_Memory_SV::get_id ( ) const

virtual

Return the ID of the shared memory segment (i.e., a System V shared memory internal id).

Implements ACE_Shared_Memory.

get_segment_size()

size_t ACE_Shared_Memory_SV::get_segment_size ( ) const

virtual

Return the size of the shared memory segment.

The overall size of the segment.

Implements ACE_Shared_Memory.

malloc()

void * ACE_Shared_Memory_SV::malloc ( size_t = 0 )

virtual

Create a new chuck of memory containing size bytes.

Implements ACE_Shared_Memory.

open()

int ACE_Shared_Memory_SV::open ( key_t id, size_t length, int create = ACE_Shared_Memory_SV::ACE_OPEN, int perms = ACE_DEFAULT_FILE_PERMS, void * addr = 0, int flags = 0 )

inline

remove()

int ACE_Shared_Memory_SV::remove ( )

virtual

Remove the underlying shared memory segment.

Removes the shared memory segment.

Implements ACE_Shared_Memory.

Member Data Documentation

ACE_ALLOC_HOOK_DECLARE

ACE_Shared_Memory_SV::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

shared_memory_

ACE_SV_Shared_Memory ACE_Shared_Memory_SV::shared_memory_

private

This version is implemented with System V shared memory segments.

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

• Shared_Memory_SV.h
• Shared_Memory_SV.cpp
• Shared_Memory_SV.inl