ACE_SV_Shared_Memory Class Reference

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

#include <SV_Shared_Memory.h>

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. More...
int	detach (void)
	Detach this shared memory segment. More...
int	remove (void)
	Remove this shared memory segment. More...
int	control (int cmd, void *buf)
	Forward to underlying System V <shmctl>. More...
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). More...
void	dump (void) const
	Dump the state of an object. More...

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

Protected Types
enum	{ ALIGN_WORDB = 8 }

Protected Member Functions
size_t	round_up (size_t len)
	Round up to an appropriate page size. More...

Protected Attributes
ACE_HANDLE	internal_id_
	Internal identifier. More...
size_t	size_
	Size of the mapped segment. More...
void *	segment_ptr_
	Pointer to the beginning of the segment. More...

Detailed Description

This is a wrapper for System V shared memory.

Member Enumeration Documentation

anonymous enum

Enumerator
ACE_CREATE
ACE_OPEN

anonymous enum

protected

Enumerator
ALIGN_WORDB	Most restrictive alignment.

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
	)

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 )

inlineprotected

Round up to an appropriate page size.

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