pool.h File Reference

Allocate memory blocks of same sizes. More...

#include <stdint.h>
#include <stddef.h>

Go to the source code of this file.

Data Structures
struct	Pool
	Allocate groups of equal-sized chunks of memory. More...
struct	MemoryPool
	This memory pool allocates blocks of memory and grows automatically. More...
struct	MemoryPool::_MemoryBlock
	Blocks of memory are stored in a singly-linked list. More...
struct	MemoryPool::_MemoryPtrBlock
	Freed pointers are stored in blocks holding addresses. More...

Functions
MemoryPool *	memory_pool_new (size_t item_size, size_t block_size)
void	memory_pool_destroy (MemoryPool *pool)

Detailed Description

Allocate memory blocks of same sizes.

Author

Sebastian Fedrau sebas.nosp@m.tian.nosp@m..fedr.nosp@m.au@g.nosp@m.mail..nosp@m.com

Definition in file pool.h.

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Data Structure Documentation

MemoryPool

struct MemoryPool

This memory pool allocates blocks of memory and grows automatically.

Definition at line 44 of file pool.h.

Data Fields
struct _MemoryBlock *	block	First memory block.
size_t	block_size	Number of items a memory memory can hold.
struct _MemoryPtrBlock *	free_block	First pointer block.
size_t	item_size	Size of an allocated item.
Pool	padding	Padding.

MemoryPool::_MemoryBlock

struct MemoryPool::_MemoryBlock

Blocks of memory are stored in a singly-linked list.

Definition at line 56 of file pool.h.

Data Fields
int8_t *	items	The allocated memory block.
struct _MemoryBlock *	next	Pointer to next available memory block or NULL.
size_t	offset	Offset of the next available address.

MemoryPool::_MemoryPtrBlock

struct MemoryPool::_MemoryPtrBlock

Freed pointers are stored in blocks holding addresses.

Definition at line 72 of file pool.h.

Data Fields
void **	items	Array containing freed pointers.
struct _MemoryPtrBlock *	next	Pointer to next memory or NULL.
size_t	offset	Offset to find next available position in items array.

Function Documentation

memory_pool_destroy()

void memory_pool_destroy

(

MemoryPool *

pool

)

Parameters

pool	MemoryPool to destroy

Destroys the given MemoryPool.

Definition at line 202 of file pool.c.

memory_pool_new()

MemoryPool * memory_pool_new	(	size_t	item_size,
		size_t	block_size
	)

Parameters

item_size	size of allocated items
block_size	number of elements a memory can hold

Returns

a new pool

Creates a new MemoryPool.

Definition at line 175 of file pool.c.