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.

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  )  [inline, protected]

Round up to an appropriate page size.


Member Data Documentation

Declare the dynamic allocation hooks.

ACE_HANDLE ACE_SV_Shared_Memory::internal_id_ [protected]

Internal identifier.

Pointer to the beginning of the segment.

size_t ACE_SV_Shared_Memory::size_ [protected]

Size of the mapped segment.


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