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ACE_Sbrk_Memory_Pool Class Reference

Make a memory pool that is based on <sbrk(2)>. More...

#include <Memory_Pool.h>

List of all members.

Public Types

typedef ACE_Sbrk_Memory_Pool_Options OPTIONS

Public Methods

 ACE_Sbrk_Memory_Pool (const ACE_TCHAR *backing_store_name=0, const OPTIONS *options=0)
 Initialize the pool. More...

virtual ~ACE_Sbrk_Memory_Pool (void)
virtual void * init_acquire (size_t nbytes, size_t &rounded_bytes, int &first_time)
 Ask system for initial chunk of local memory. More...

virtual void * acquire (size_t nbytes, size_t &rounded_bytes)
 Acquire at least NBYTES from the memory pool. ROUNDED_BYTES is the actual number of bytes allocated. More...

virtual int release (void)
 Instruct the memory pool to release all of its resources. More...

virtual int sync (ssize_t len=-1, int flags=MS_SYNC)
 Sync <len> bytes of the memory region to the backing store starting at <this->base_addr_>. More...

virtual int sync (void *addr, size_t len, int flags=MS_SYNC)
 Sync <len> bytes of the memory region to the backing store starting at <addr_>. More...

virtual int protect (ssize_t len=-1, int prot=PROT_RDWR)
 Change the protection of the pages of the mapped region to <prot> starting at <this->base_addr_> up to <len> bytes. More...

virtual int protect (void *addr, size_t len, int prot=PROT_RDWR)
 Change the protection of the pages of the mapped region to <prot> starting at <addr> up to <len> bytes. More...

virtual void dump (void) const
 Dump the state of an object. More...

virtual void * base_addr (void) const
 Return the base address of this memory pool, 0 if base_addr never changes. More...


Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks. More...


Protected Methods

virtual size_t round_up (size_t nbytes)
 Implement the algorithm for rounding up the request to an appropriate chunksize. More...


Detailed Description

Make a memory pool that is based on <sbrk(2)>.


Member Typedef Documentation

typedef ACE_Sbrk_Memory_Pool_Options ACE_Sbrk_Memory_Pool::OPTIONS
 


Constructor & Destructor Documentation

ACE_Sbrk_Memory_Pool::ACE_Sbrk_Memory_Pool const ACE_TCHAR   backing_store_name = 0,
const OPTIONS   options = 0
 

Initialize the pool.

ACE_INLINE ACE_Sbrk_Memory_Pool::~ACE_Sbrk_Memory_Pool void    [virtual]
 


Member Function Documentation

void * ACE_Sbrk_Memory_Pool::acquire size_t    nbytes,
size_t &    rounded_bytes
[virtual]
 

Acquire at least NBYTES from the memory pool. ROUNDED_BYTES is the actual number of bytes allocated.

ACE_INLINE void * ACE_Sbrk_Memory_Pool::base_addr void    const [virtual]
 

Return the base address of this memory pool, 0 if base_addr never changes.

void ACE_Sbrk_Memory_Pool::dump void    const [virtual]
 

Dump the state of an object.

ACE_INLINE void * ACE_Sbrk_Memory_Pool::init_acquire size_t    nbytes,
size_t &    rounded_bytes,
int &    first_time
[virtual]
 

Ask system for initial chunk of local memory.

ACE_INLINE int ACE_Sbrk_Memory_Pool::protect void *    addr,
size_t    len,
int    prot = PROT_RDWR
[virtual]
 

Change the protection of the pages of the mapped region to <prot> starting at <addr> up to <len> bytes.

ACE_INLINE int ACE_Sbrk_Memory_Pool::protect ssize_t    len = -1,
int    prot = PROT_RDWR
[virtual]
 

Change the protection of the pages of the mapped region to <prot> starting at <this->base_addr_> up to <len> bytes.

If <len> == -1 then change protection of all pages in the mapped region.

ACE_INLINE int ACE_Sbrk_Memory_Pool::release void    [virtual]
 

Instruct the memory pool to release all of its resources.

ACE_INLINE size_t ACE_Sbrk_Memory_Pool::round_up size_t    nbytes [protected, virtual]
 

Implement the algorithm for rounding up the request to an appropriate chunksize.

ACE_INLINE int ACE_Sbrk_Memory_Pool::sync void *    addr,
size_t    len,
int    flags = MS_SYNC
[virtual]
 

Sync <len> bytes of the memory region to the backing store starting at <addr_>.

ACE_INLINE int ACE_Sbrk_Memory_Pool::sync ssize_t    len = -1,
int    flags = MS_SYNC
[virtual]
 

Sync <len> bytes of the memory region to the backing store starting at <this->base_addr_>.

If <len> == -1 then sync the whole region.


Member Data Documentation

ACE_Sbrk_Memory_Pool::ACE_ALLOC_HOOK_DECLARE
 

Declare the dynamic allocation hooks.


The documentation for this class was generated from the following files:
Generated on Thu May 23 00:22:10 2002 for ACE by doxygen1.2.13.1 written by Dimitri van Heesch, © 1997-2001