PagePool Class Reference

#include <PagePool.h>

List of all members.

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Detailed Description

Thread-safe page pool.

Public Member Functions
	PagePool (unsigned int page_size, unsigned int capacity, bool locked=true)
	Allocates capacity page-aligned blocks, each page_size bytes long, all locked into main memory (if locked).
	~PagePool ()
	Destructor.
void *	alloc ()
	Allocates and returns a single page.
void	free (void *)
	Frees a page.
unsigned int	page_size () const
	Returns the page size for the pool (i.e., the page_size argument to the constructor).
unsigned int	capacity () const
	Returns the pool capacity (i.e., the capacity argument to the constructor).
unsigned int	alloced_pages () const
	Returns the number of pages currently allocated.
unsigned int	free_pages () const
	Returns the number of pages currently free.
void	dump () const
	Dumps some state to stderr.
void	dumpNoFreeList () const

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Constructor & Destructor Documentation

PagePool::PagePool (  unsigned int  page_size, unsigned int  capacity, bool  locked = true )

Allocates capacity page-aligned blocks, each page_size bytes long, all locked into main memory (if locked). (One great big memalign call!) Throws an exception if unable to allocate and lock all that memory. page_size should generally be a power of two and multiple of the system page size.

PagePool::~PagePool (   )

Destructor.

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Member Function Documentation

void * PagePool::alloc (   )

Allocates and returns a single page. Throws an exception if there are no free blocks left.

unsigned int PagePool::alloced_pages (   )  const

Returns the number of pages currently allocated.

unsigned int PagePool::capacity (   )  const

Returns the pool capacity (i.e., the capacity argument to the constructor).

void PagePool::dump (   )  const

Dumps some state to stderr.

void PagePool::dumpNoFreeList (   )  const

void PagePool::free (  void *   )

Frees a page.

unsigned int PagePool::free_pages (   )  const

Returns the number of pages currently free.

unsigned int PagePool::page_size (   )  const

Returns the page size for the pool (i.e., the page_size argument to the constructor).

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

• PagePool.h
• PagePool.cc

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