NAME
ost::SharedMemPager -
The shared mempager uses a mutex to protect key access methods.
SYNOPSIS
#include <misc.h>
Inherits ost::MemPager, and ost::Mutex.
Protected Member Functions
SharedMemPager (size_t pagesize=4096, const char *name=NULL)
Create a mempager mutex pool.
void purge (void)
Purge the memory pool while locked.
void * first (size_t size)
Get the first memory page after locking.
void * alloc (size_t size)
Get the last memory page after locking.
Detailed Description
The shared mempager uses a mutex to protect key access methods.
This class is used when a mempager will be shared by multiple threads.
Author:
David Sugar <dyfet@ostel.com> mutex protected memory pager.
Constructor & Destructor Documentation
ost::SharedMemPager::SharedMemPager (size_t pagesize = 4096, const char *
name = NULL) [protected]
Create a mempager mutex pool. Parameters:
pagesize page size for allocation.
name a name for the pool.
Member Function Documentation
void* ost::SharedMemPager::alloc (size_t size) [protected, virtual]
Get the last memory page after locking. Returns:
allocated memory space.
Parameters:
size of request.
Reimplemented from ost::MemPager.
void* ost::SharedMemPager::first (size_t size) [protected, virtual]
Get the first memory page after locking. Returns:
allocated memory space.
Parameters:
size of request.
Reimplemented from ost::MemPager.
void ost::SharedMemPager::purge (void) [protected]
Purge the memory pool while locked.
Reimplemented from ost::MemPager.
Author
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