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ost::SharedMemPager Class Reference

The shared mempager uses a mutex to protect key access methods. mutex protected memory pager. More...

#include <misc.h>

Inheritance diagram for ost::SharedMemPager:

List of all members.

Protected Methods
	SharedMemPager (int pagesize=4096)
	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.

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Detailed Description

The shared mempager uses a mutex to protect key access methods. mutex protected memory pager.

This class is used when a mempager will be shared by multiple threads.

Author:

David Sugar <dyfet@ostel.com>

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Constructor & Destructor Documentation

ost::SharedMemPager::SharedMemPager (  int    pagesize = 4096 )  [protected]

Create a mempager mutex pool. Parameters: pagesize  page size for allocation.

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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.

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The documentation for this class was generated from the following file:

• misc.h

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