ACE
6.1.2
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Make a memory pool that is based on <sbrk(2)>. More...
#include <Sbrk_Memory_Pool.h>
Public Types | |
typedef ACE_Sbrk_Memory_Pool_Options | OPTIONS |
Public Member Functions | |
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 Member Functions | |
virtual size_t | round_up (size_t nbytes) |
Make a memory pool that is based on <sbrk(2)>.
ACE_Sbrk_Memory_Pool::ACE_Sbrk_Memory_Pool | ( | const ACE_TCHAR * | backing_store_name = 0 , |
const OPTIONS * | options = 0 |
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Initialize the pool.
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Acquire at least nbytes from the memory pool. rounded_bytes is the actual number of bytes allocated.
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Return the base address of this memory pool, 0 if base_addr never changes.
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Dump the state of an object.
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Ask system for initial chunk of local memory.
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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.
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Change the protection of the pages of the mapped region to prot starting at addr up to len bytes.
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Instruct the memory pool to release all of its resources.
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Implement the algorithm for rounding up the request to an appropriate chunksize.
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Sync len bytes of the memory region to the backing store starting at this->base_addr_
. If len == -1 then sync the whole region.
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Sync len bytes of the memory region to the backing store starting at addr.
Declare the dynamic allocation hooks.