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ACE_Shared_Memory_MM Class Reference

Shared memory wrapper based on MMAP. More...

#include <Shared_Memory_MM.h>

Inheritance diagram for ACE_Shared_Memory_MM:

[legend]Collaboration diagram for ACE_Shared_Memory_MM:

[legend]List of all members.

Public Methods
	ACE_Shared_Memory_MM (void)
	Default constructor.
	ACE_Shared_Memory_MM (ACE_HANDLE handle, int length=-1, int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, char *addr=0, off_t pos=0)
	Constructor.
	ACE_Shared_Memory_MM (const ACE_TCHAR *file_name, int len=-1, int flags=O_RDWR|O_CREAT, int mode=ACE_DEFAULT_FILE_PERMS, int prot=PROT_RDWR, int share=ACE_MAP_SHARED, char *addr=0, off_t pos=0)
	Constructor.
int	open (ACE_HANDLE handle, int length=-1, int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, char *addr=0, off_t pos=0)
	Open method.
int	open (const ACE_TCHAR *file_name, int len=-1, int flags=O_RDWR|O_CREAT, int mode=ACE_DEFAULT_FILE_PERMS, int prot=PROT_RDWR, int share=ACE_MAP_SHARED, char *addr=0, off_t pos=0)
	Open method.
const ACE_TCHAR *	filename (void) const
	Return the name of file that is mapped (if any).
virtual int	close (void)
	Close down the shared memory segment.
virtual int	remove (void)
	Remove the shared memory segment and the underlying file.
virtual void *	malloc (size_t size=0)
	Create a new chuck of memory containing <size> bytes.
virtual int	free (void *p)
virtual int	get_segment_size (void) const
	Return the size of the shared memory segment.
virtual 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.
Private Attributes
ACE_Mem_Map	shared_memory_
	This version is implemented with memory-mapped files.

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Detailed Description

Shared memory wrapper based on MMAP.

This class provides a very simple-minded shared memory manager. For more a powerful memory allocator please see <ACE_Malloc>.

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Constructor & Destructor Documentation

ACE_Shared_Memory_MM::ACE_Shared_Memory_MM (  void    )

Default constructor.

ACE_Shared_Memory_MM::ACE_Shared_Memory_MM (  ACE_HANDLE    handle, int    length = -1, int    prot = PROT_RDWR, int    share = ACE_MAP_PRIVATE, char *    addr = 0, off_t    pos = 0 )

Constructor.

ACE_Shared_Memory_MM::ACE_Shared_Memory_MM (  const ACE_TCHAR *    file_name, int    len = -1, int    flags = O_RDWR|O_CREAT, int    mode = ACE_DEFAULT_FILE_PERMS, int    prot = PROT_RDWR, int    share = ACE_MAP_SHARED, char *    addr = 0, off_t    pos = 0 )

Constructor.

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Member Function Documentation

ACE_INLINE int ACE_Shared_Memory_MM::close (  void    )  [virtual]

Close down the shared memory segment. Implements ACE_Shared_Memory.

void ACE_Shared_Memory_MM::dump (  void    )  const

Dump the state of an object.

ACE_INLINE const ACE_TCHAR * ACE_Shared_Memory_MM::filename (  void    )  const

Return the name of file that is mapped (if any).

ACE_INLINE int ACE_Shared_Memory_MM::free (  void *    p )  [virtual]

Free a chuck of memory allocated by <ACE_Shared_Memory_MM::malloc>. Implements ACE_Shared_Memory.

ACE_INLINE ACE_HANDLE ACE_Shared_Memory_MM::get_id (  void    )  const [virtual]

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

ACE_INLINE int ACE_Shared_Memory_MM::get_segment_size (  void    )  const [virtual]

Return the size of the shared memory segment. Implements ACE_Shared_Memory.

ACE_INLINE void * ACE_Shared_Memory_MM::malloc (  size_t    size = 0 )  [virtual]

Create a new chuck of memory containing <size> bytes. Implements ACE_Shared_Memory.

ACE_INLINE int ACE_Shared_Memory_MM::open (  const ACE_TCHAR *    file_name, int    len = -1, int    flags = O_RDWR|O_CREAT, int    mode = ACE_DEFAULT_FILE_PERMS, int    prot = PROT_RDWR, int    share = ACE_MAP_SHARED, char *    addr = 0, off_t    pos = 0 )

Open method.

ACE_INLINE int ACE_Shared_Memory_MM::open (  ACE_HANDLE    handle, int    length = -1, int    prot = PROT_RDWR, int    share = ACE_MAP_PRIVATE, char *    addr = 0, off_t    pos = 0 )

Open method.

ACE_INLINE int ACE_Shared_Memory_MM::remove (  void    )  [virtual]

Remove the shared memory segment and the underlying file. Implements ACE_Shared_Memory.

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Member Data Documentation

ACE_Shared_Memory_MM::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

ACE_Mem_Map ACE_Shared_Memory_MM::shared_memory_ [private]

This version is implemented with memory-mapped files.

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

• /export2/deucetmp/bala/release_try/ACE_wrappers/ace/Shared_Memory_MM.h
• /export2/deucetmp/bala/release_try/ACE_wrappers/ace/Shared_Memory_MM.cpp
• /export2/deucetmp/bala/release_try/ACE_wrappers/ace/Shared_Memory_MM.i

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