ACE
6.1.6
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Shared memory wrapper based on MMAP. More...
#include <Shared_Memory_MM.h>
Public Member Functions | |
ACE_Shared_Memory_MM (void) | |
Default constructor. | |
ACE_Shared_Memory_MM (ACE_HANDLE handle, size_t length=static_cast< size_t >(-1), int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, char *addr=0, ACE_OFF_T pos=0) | |
Constructor. | |
ACE_Shared_Memory_MM (const ACE_TCHAR *file_name, size_t length=static_cast< size_t >(-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, ACE_OFF_T pos=0) | |
Constructor. | |
int | open (ACE_HANDLE handle, size_t length=static_cast< size_t >(-1), int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, char *addr=0, ACE_OFF_T pos=0) |
Open method. | |
int | open (const ACE_TCHAR *file_name, size_t length=static_cast< size_t >(-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, ACE_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 size_t | 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. | |
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virtual | ~ACE_Shared_Memory (void) |
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. |
Shared memory wrapper based on MMAP.
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.
ACE_Shared_Memory_MM::ACE_Shared_Memory_MM | ( | void | ) |
Default constructor.
ACE_Shared_Memory_MM::ACE_Shared_Memory_MM | ( | ACE_HANDLE | handle, |
size_t | length = static_cast<size_t> (-1) , |
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int | prot = PROT_RDWR , |
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int | share = ACE_MAP_PRIVATE , |
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char * | addr = 0 , |
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ACE_OFF_T | pos = 0 |
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) |
Constructor.
ACE_Shared_Memory_MM::ACE_Shared_Memory_MM | ( | const ACE_TCHAR * | file_name, |
size_t | length = static_cast<size_t> (-1) , |
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int | flags = O_RDWR | O_CREAT , |
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int | mode = ACE_DEFAULT_FILE_PERMS , |
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int | prot = PROT_RDWR , |
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int | share = ACE_MAP_SHARED , |
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char * | addr = 0 , |
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ACE_OFF_T | pos = 0 |
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) |
Constructor.
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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.
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inline |
Return the name of file that is mapped (if any).
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virtual |
Free a chuck of memory allocated by <ACE_Shared_Memory_MM::malloc>.
Implements ACE_Shared_Memory.
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virtual |
Return the ID of the shared memory segment (i.e., an ACE_HANDLE).
Implements ACE_Shared_Memory.
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virtual |
Return the size of the shared memory segment.
Implements ACE_Shared_Memory.
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virtual |
Create a new chuck of memory containing size bytes.
Implements ACE_Shared_Memory.
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inline |
Open method.
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inline |
Open method.
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virtual |
Remove the shared memory segment and the underlying file.
Implements ACE_Shared_Memory.
ACE_Shared_Memory_MM::ACE_ALLOC_HOOK_DECLARE |
Declare the dynamic allocation hooks.
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private |
This version is implemented with memory-mapped files.