Represents a fixed number of blocks. More...

#include <Chunk.h>

Private Member Functions
void *	Allocate (std::size_t blocks)
	Allocates out a number of additional blocks. More...

void	Deallocate (void *p, std::size_t blocks)
	DeAllocates a number of blocks starting at pointer. More...

bool	HasAvailable (unsigned char numBlocks) const
	Checks to see if this number of blocks is available in this chunk. More...

bool	HasBlock (void *p, std::size_t chunkLength) const
	Checks if this block belongs to this chunk. More...

bool	Init (std::size_t size, unsigned char n)

bool	IsBlockAvailable (void *p, unsigned char numBlocks, std::size_t blockSize) const
	Checks the block starting at p and for p+numBlocks*blockSize checks to see if they're used. More...

bool	IsCorrupt (unsigned char numBlocks, std::size_t blockSize, bool checkIndexes) const

bool	IsFilled (void) const
	Checks to see if this is filled. More...

void	Release ()
	Deallocates all blocks in chunck. More...

void	Reset (std::size_t blockSize, unsigned char blocks)
	Each time a chunk is reused, it needs to be reset. More...

Private Attributes
unsigned char *	fData

unsigned char	fFirstAvailable
	First Available block. More...

unsigned char	fNAvail
	Number of available blocks. More...

Friends
class	FixedAllocator
	Since all members are private, only FixedAllocator can access them. More...

Detailed Description

Represents a fixed number of blocks.

Definition at line 16 of file Chunk.h.

Member Function Documentation

void * Protium::Allocation::Chunk::Allocate ( std::size_t blocks )

private

Allocates out a number of additional blocks.

Definition at line 30 of file Chunk.cxx.

void Protium::Allocation::Chunk::Deallocate	(	void *	p,
		std::size_t	blocks
	)

private

DeAllocates a number of blocks starting at pointer.

Definition at line 43 of file Chunk.cxx.

bool Protium::Allocation::Chunk::HasAvailable ( unsigned char numBlocks ) const

inlineprivate

Checks to see if this number of blocks is available in this chunk.

Definition at line 59 of file Chunk.h.

bool Protium::Allocation::Chunk::HasBlock	(	void *	p,
		std::size_t	chunkLength
	)		const

inlineprivate

Checks if this block belongs to this chunk.

Definition at line 54 of file Chunk.h.

bool Protium::Allocation::Chunk::Init	(	std::size_t	size,
		unsigned char	n
	)

private

Each time a new chunk is created, it must be initialized (or when reused in a pool)

Parameters

size	the size per chunk
n	the number of blocks

Definition at line 6 of file Chunk.cxx.

bool Protium::Allocation::Chunk::IsBlockAvailable	(	void *	p,
		unsigned char	numBlocks,
		std::size_t	blockSize
	)		const

private

Checks the block starting at p and for p+numBlocks*blockSize checks to see if they're used.

Definition at line 160 of file Chunk.cxx.

bool Protium::Allocation::Chunk::IsCorrupt	(	unsigned char	numBlocks,
		std::size_t	blockSize,
		bool	checkIndexes
	)		const

private

Determines whether this chunk is corrupt The following conditions imply corruption:

Number of available blocks exceeds the number of blocks contained
The last block occurs before the first block (overwrite)
For each block:
- If block is found outside outside of bounds
- Block occurs twice

Definition at line 61 of file Chunk.cxx.

bool Protium::Allocation::Chunk::IsFilled ( void ) const

inlineprivate

Checks to see if this is filled.

Definition at line 63 of file Chunk.h.

void Protium::Allocation::Chunk::Release ( )

private

Deallocates all blocks in chunck.

Definition at line 24 of file Chunk.cxx.

void Protium::Allocation::Chunk::Reset	(	std::size_t	blockSize,
		unsigned char	blocks
	)

private

Each time a chunk is reused, it needs to be reset.

Definition at line 15 of file Chunk.cxx.

Friends And Related Function Documentation

friend class FixedAllocator

friend

Since all members are private, only FixedAllocator can access them.

Definition at line 28 of file Chunk.h.

Member Data Documentation

unsigned char* Protium::Allocation::Chunk::fData

private

Data

Definition at line 19 of file Chunk.h.

unsigned char Protium::Allocation::Chunk::fFirstAvailable

private

First Available block.

Definition at line 22 of file Chunk.h.

unsigned char Protium::Allocation::Chunk::fNAvail

private

Number of available blocks.

Definition at line 25 of file Chunk.h.

Private Member Functions

Private Attributes

Friends

Detailed Description

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation