Main Page   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Related Pages  

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.

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.

virtual void * acquire (size_t nbytes, size_t &rounded_bytes)
virtual int release (int destroy=1)
 Instruct the memory pool to release all of its resources.

virtual int sync (ssize_t len=-1, int flags=MS_SYNC)
virtual int sync (void *addr, size_t len, int flags=MS_SYNC)
virtual int protect (ssize_t len=-1, int prot=PROT_RDWR)
virtual int protect (void *addr, size_t len, int prot=PROT_RDWR)
virtual void dump (void) const
 Dump the state of an object.

virtual void * base_addr (void) const

Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks.


Protected Methods

virtual size_t round_up (size_t nbytes)

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 (  int    destroy = 1 )  [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 Fri Apr 2 16:53:04 2004 for ACE by doxygen1.2.18