ost::SharedMemPager Class Reference

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

#include <misc.h>

Inheritance diagram for ost::SharedMemPager:

List of all members.

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.

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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.

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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.

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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