#include <MMAP_Memory_Pool.h>
Public Types | |
enum | { FIRSTCALL_FIXED = 0, ALWAYS_FIXED = 1, NEVER_FIXED = 2 } |
Public Member Functions | |
ACE_MMAP_Memory_Pool_Options (const void *base_addr=ACE_DEFAULT_BASE_ADDR, int use_fixed_addr=ALWAYS_FIXED, int write_each_page=1, off_t minimum_bytes=0, u_int flags=0, int guess_on_fault=1, LPSECURITY_ATTRIBUTES sa=0, mode_t file_mode=ACE_DEFAULT_FILE_PERMS) | |
Public Attributes | |
const void * | base_addr_ |
Base address of the memory-mapped backing store. | |
int | use_fixed_addr_ |
int | write_each_page_ |
off_t | minimum_bytes_ |
What the minimim bytes of the initial segment should be. | |
u_int | flags_ |
Any special flags that need to be used for mmap . | |
int | guess_on_fault_ |
LPSECURITY_ATTRIBUTES | sa_ |
Pointer to a security attributes object. Only used on NT. | |
mode_t | file_mode_ |
File mode for mmaped file, if it is created. | |
Private Member Functions | |
ACE_MMAP_Memory_Pool_Options (const ACE_MMAP_Memory_Pool_Options &) | |
ACE_MMAP_Memory_Pool_Options & | operator= (const ACE_MMAP_Memory_Pool_Options &) |
This should be a nested class, but that breaks too many compilers.
anonymous enum |
ACE_MMAP_Memory_Pool_Options::ACE_MMAP_Memory_Pool_Options | ( | const void * | base_addr = ACE_DEFAULT_BASE_ADDR , |
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int | use_fixed_addr = ALWAYS_FIXED , |
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int | write_each_page = 1 , |
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off_t | minimum_bytes = 0 , |
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u_int | flags = 0 , |
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int | guess_on_fault = 1 , |
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LPSECURITY_ATTRIBUTES | sa = 0 , |
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mode_t | file_mode = ACE_DEFAULT_FILE_PERMS | |||
) |
ACE_MMAP_Memory_Pool_Options::ACE_MMAP_Memory_Pool_Options | ( | const ACE_MMAP_Memory_Pool_Options & | ) | [private] |
ACE_MMAP_Memory_Pool_Options& ACE_MMAP_Memory_Pool_Options::operator= | ( | const ACE_MMAP_Memory_Pool_Options & | ) | [private] |
const void* ACE_MMAP_Memory_Pool_Options::base_addr_ |
Base address of the memory-mapped backing store.
File mode for mmaped file, if it is created.
Any special flags that need to be used for mmap
.
Try to remap without knowing the faulting address. This parameter is ignored on platforms that know the faulting address (UNIX with SI_ADDR and Win32).
What the minimim bytes of the initial segment should be.
LPSECURITY_ATTRIBUTES ACE_MMAP_Memory_Pool_Options::sa_ |
Pointer to a security attributes object. Only used on NT.
Determines whether we set base_addr_
or if mmap(2) selects it FIRSTCALL_FIXED The base address from the first call to mmap will be used for subsequent calls to mmap ALWAYS_FIXED The base address specified in base_addr will be used in all calls to mmap. NEVER_FIXED The base address will be selected by the OS for each call to mmap. Caution should be used with this mode since a call that requires the backing store to grow may change pointers that are cached by the application.
Should each page be written eagerly to avoid surprises later on?