common::MemPoolItem类 参考

Public 类型
using	item_unique_ptr = unique_ptr< void, function< void(void *const)> >

Public 成员函数
	MemPoolItem (const char *tag)
int	init (int item_size, bool dynamic=true, int pool_num=DEFAULT_POOL_NUM, int item_num_per_pool=DEFAULT_ITEM_NUM_PER_POOL)
void	cleanup ()
int	extend ()
void *	alloc ()
item_unique_ptr	alloc_unique_ptr ()
void	free (void *item)
bool	is_used (void *item)
string	to_string ()
const string	get_name () const
bool	is_dynamic () const
int	get_size () const
int	get_item_size () const
int	get_item_num_per_pool () const
int	get_used_num ()

Protected 属性
pthread_mutex_t	mutex
string	name
bool	dynamic
int	size
int	item_size
int	item_num_per_pool
list< void * >	pools
set< void * >	used
list< void * >	frees

成员函数说明

alloc()

void * common::MemPoolItem::alloc

(

)

Alloc one frame from memory Pool

返回

cleanup()

void common::MemPoolItem::cleanup

(

)

Do cleanup job for memory pool

extend()

int common::MemPoolItem::extend

(

)

If dynamic has been set, extend current memory pool,

free()

void common::MemPoolItem::free

(

void *

item

)

Free one item, the resouce will return to memory Pool

参数

item

init()

int common::MemPoolItem::init	(	int	item_size,
		bool	dynamic = true,
		int	pool_num = DEFAULT_POOL_NUM,
		int	item_num_per_pool = DEFAULT_ITEM_NUM_PER_POOL
	)

init memory pool, the major job is to alloc memory for memory pool

参数

pool_num,memory	pool's number
item_num_per_pool,how	many items per pool.

返回

is_used()

bool common::MemPoolItem::is_used ( void *  item )

inline

Check whether this item has been used before.

参数

item

返回

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该类的文档由以下文件生成:

• src/common/mm/mem_pool.h
• src/common/mm/mem_pool.cpp