write_pool< BlockType > Class Template Reference [Block scheduling sublayer]

Implements dynamically resizable buffered writing pool. More...

#include <write_pool.h>

Inherits noncopyable.

List of all members.

Public Types
typedef BlockType	block_type
typedef block_type::bid_type	bid_type
typedef std::list< block_type * > ::iterator	free_blocks_iterator
typedef std::list< busy_entry > ::iterator	busy_blocks_iterator
Public Member Functions
	write_pool (unsigned_type init_size=1)
	Constructs pool.
void	swap (write_pool &obj)
virtual	~write_pool ()
	Waits for completion of all ongoing write requests and frees memory.
unsigned_type	size () const
	Returns number of owned blocks.
request_ptr	write (block_type *&block, bid_type bid)
	Passes a block to the pool for writing.
block_type *	steal ()
	Take out a block from the pool.
request_ptr	steal_request (bid_type bid)
void	add (block_type *&block)
Protected Member Functions
void	check_all_busy ()
Protected Attributes
std::list< block_type * >	free_blocks
std::list< busy_entry >	busy_blocks
unsigned_type	free_blocks_size
unsigned_type	busy_blocks_size

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Detailed Description

template<class BlockType>
class write_pool< BlockType >

Implements dynamically resizable buffered writing pool.

---

Constructor & Destructor Documentation

template<class BlockType>

write_pool< BlockType >::write_pool

(

unsigned_type

init_size = 1

)

[inline, explicit]

Constructs pool.

Parameters:

init_size

initial number of blocks in the pool

template<class BlockType>

virtual write_pool< BlockType >::~write_pool

(

)

[inline, virtual]

Waits for completion of all ongoing write requests and frees memory.

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Member Function Documentation

template<class BlockType>

unsigned_type write_pool< BlockType >::size

(

)

const [inline]

Returns number of owned blocks.

Referenced by read_write_pool< BlockType >::size_write(), and write_pool< BlockType >::steal().

template<class BlockType>

block_type* write_pool< BlockType >::steal

(

)

[inline]

Take out a block from the pool.

Returns:

pointer to the block. Ownership of the block goes to the caller.

References write_pool< BlockType >::size(), and wait_any().

Referenced by read_write_pool< BlockType >::steal().

template<class BlockType>

request_ptr write_pool< BlockType >::write	(	block_type *&	block,
		bid_type	bid
	)			[inline]

Passes a block to the pool for writing.

Parameters:

	block	block to write. Ownership of the block goes to the pool. block must be allocated dynamically with using new .
	bid	location, where to write

Warning:

block must be allocated dynamically with using new .

Returns:

request object of the write operation

Referenced by read_write_pool< BlockType >::write().

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

• write_pool.h