ACE_SV_Shared_Memory Class Reference

This is a wrapper for System V shared memory. More...

#include <SV_Shared_Memory.h>

List of all members.

Public Types
enum	{ ACE_CREATE = IPC_CREAT, ACE_OPEN = 0 }
Public Member Functions
	ACE_SV_Shared_Memory (void)
	ACE_SV_Shared_Memory (key_t external_id, size_t size, int create, int perms=ACE_DEFAULT_FILE_PERMS, void *virtual_addr=0, int flags=0)
	ACE_SV_Shared_Memory (ACE_HANDLE internal_id, int flags=0)
int	open (key_t external_id, size_t size, int create=ACE_SV_Shared_Memory::ACE_OPEN, int perms=ACE_DEFAULT_FILE_PERMS)
int	open_and_attach (key_t external_id, size_t size, int create=ACE_SV_Shared_Memory::ACE_OPEN, int perms=ACE_DEFAULT_FILE_PERMS, void *virtual_addr=0, int flags=0)
int	attach (void *virtual_addr=0, int flags=0)
	Attach this shared memory segment.
int	detach (void)
	Detach this shared memory segment.
int	remove (void)
	Remove this shared memory segment.
int	control (int cmd, void *buf)
	Forward to underlying System V <shmctl>.
void *	get_segment_ptr (void) const
size_t	get_segment_size (void) const
ACE_HANDLE	get_id (void) const
	Return the ID of the shared memory segment (i.e., an ACE_HANDLE).
void	dump (void) const
	Dump the state of an object.
Public Attributes
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks.
Protected Types
enum	{ ALIGN_WORDB = 8 }
Protected Member Functions
size_t	round_up (size_t len)
	Round up to an appropriate page size.
Protected Attributes
ACE_HANDLE	internal_id_
	Internal identifier.
size_t	size_
	Size of the mapped segment.
void *	segment_ptr_
	Pointer to the beginning of the segment.

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Detailed Description

This is a wrapper for System V shared memory.

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Member Enumeration Documentation

anonymous enum

Enumerator:

ACE_CREATE
ACE_OPEN

anonymous enum [protected]

Enumerator:

ALIGN_WORDB

Most restrictive alignment.

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Constructor & Destructor Documentation

ACE_SV_Shared_Memory::ACE_SV_Shared_Memory

(

void

)

ACE_SV_Shared_Memory::ACE_SV_Shared_Memory	(	key_t	external_id,
		size_t	size,
		int	create,
		int	perms = ACE_DEFAULT_FILE_PERMS,
		void *	virtual_addr = 0,
		int	flags = 0
	)

ACE_SV_Shared_Memory::ACE_SV_Shared_Memory	(	ACE_HANDLE	internal_id,
		int	flags = 0
	)

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Member Function Documentation

int ACE_SV_Shared_Memory::attach	(	void *	virtual_addr = 0,
		int	flags = 0
	)		[inline]

Attach this shared memory segment.

int ACE_SV_Shared_Memory::control	(	int	cmd,
		void *	buf
	)		[inline]

Forward to underlying System V <shmctl>.

int ACE_SV_Shared_Memory::detach

(

void

)

[inline]

Detach this shared memory segment.

void ACE_SV_Shared_Memory::dump

(

void

)

const

Dump the state of an object.

ACE_HANDLE ACE_SV_Shared_Memory::get_id

(

void

)

const [inline]

Return the ID of the shared memory segment (i.e., an ACE_HANDLE).

void * ACE_SV_Shared_Memory::get_segment_ptr

(

void

)

const [inline]

size_t ACE_SV_Shared_Memory::get_segment_size

(

void

)

const [inline]

int ACE_SV_Shared_Memory::open	(	key_t	external_id,
		size_t	size,
		int	create = ACE_SV_Shared_Memory::ACE_OPEN,
		int	perms = ACE_DEFAULT_FILE_PERMS
	)		[inline]

int ACE_SV_Shared_Memory::open_and_attach	(	key_t	external_id,
		size_t	size,
		int	create = ACE_SV_Shared_Memory::ACE_OPEN,
		int	perms = ACE_DEFAULT_FILE_PERMS,
		void *	virtual_addr = 0,
		int	flags = 0
	)

int ACE_SV_Shared_Memory::remove

(

void

)

[inline]

Remove this shared memory segment.

size_t ACE_SV_Shared_Memory::round_up

(

size_t

len

)

[inline, protected]

Round up to an appropriate page size.

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Member Data Documentation

ACE_SV_Shared_Memory::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

ACE_HANDLE ACE_SV_Shared_Memory::internal_id_ [protected]

Internal identifier.

void* ACE_SV_Shared_Memory::segment_ptr_ [protected]

Pointer to the beginning of the segment.

size_t ACE_SV_Shared_Memory::size_ [protected]

Size of the mapped segment.

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

• SV_Shared_Memory.h
• SV_Shared_Memory.cpp
• SV_Shared_Memory.inl