mlt_pool_s Struct Reference

Pool (memory) class. More...

Public Member Functions
void *	mlt_pool_alloc (int size)
	Allocate size bytes from the pool.
void	mlt_pool_close ()
	Close the pool.
void	mlt_pool_init ()
	Initialise the global pool.
void	mlt_pool_purge ()
	Purge unused items in the pool.
void *	mlt_pool_realloc (void *ptr, int size)
	Allocate size bytes from the pool.
void	mlt_pool_release (void *release)
	Release the allocated memory.
Data Fields
int	count
	the number of blocks in the pool
pthread_mutex_t	lock
	lock to prevent race conditions
int	size
	the size of the memory block as a power of 2
mlt_deque	stack
	a stack of addresses to memory blocks
Private Member Functions
static void	pool_close (mlt_pool self)
	Destroy a pool.
static void *	pool_fetch (mlt_pool self)
	Get an item from the pool.
static mlt_pool	pool_init (int size)
	Create a pool.
static void	pool_return (void *ptr)
	Return an item to the pool.

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Detailed Description

Pool (memory) class.

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Member Function Documentation

void * mlt_pool_alloc

(

int

size

)

Allocate size bytes from the pool.

Parameters:

size	the number of bytes

void mlt_pool_close

(

)

Close the pool.

void mlt_pool_init

(

)

Initialise the global pool.

void mlt_pool_purge

(

)

Purge unused items in the pool.

A form of garbage collection.

void * mlt_pool_realloc	(	void *	ptr,
		int	size
	)

Allocate size bytes from the pool.

Parameters:

ptr	an opaque pointer - can be in the pool or a new block to allocate
size	the number of bytes

void mlt_pool_release

(

void *

release

)

Release the allocated memory.

Parameters:

release

an opaque pointer of a block in the pool

static void pool_close

(

mlt_pool

self

)

[private]

Destroy a pool.

Parameters:

self

a pool

static void * pool_fetch

(

mlt_pool

self

)

[private]

Get an item from the pool.

Parameters:

self

a pool

Returns:

an opaque pointer

static mlt_pool pool_init

(

int

size

)

[private]

Create a pool.

Parameters:

size	the size of the memory blocks to hold as some power of two

Returns:

a new pool object

static void pool_return

(

void *

ptr

)

[private]

Return an item to the pool.

Parameters:

ptr	an opaque pointer

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Field Documentation

int mlt_pool_s::count

the number of blocks in the pool

pthread_mutex_t mlt_pool_s::lock

lock to prevent race conditions

int mlt_pool_s::size

the size of the memory block as a power of 2

mlt_deque mlt_pool_s::stack

a stack of addresses to memory blocks

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

• mlt_pool.c