AbstractCallback Class Reference

Inheritance diagram for AbstractCallback:

Collaboration diagram for AbstractCallback:

Public Member Functions
	AbstractCallback (trx_t *trx)
virtual	~AbstractCallback ()
virtual dberr_t	init (os_offset_t file_size, const buf_block_t *block) UNIV_NOTHROW
bool	is_compressed_table () const UNIV_NOTHROW
Public Member Functions inherited from PageCallback
	PageCallback ()
virtual dberr_t	operator() (os_offset_t offset, buf_block_t *block) UNIV_NOTHROW=0
void	set_file (const char *filename, os_file_t file) UNIV_NOTHROW
virtual ulint	get_space_id () const UNIV_NOTHROW=0
ulint	get_zip_size () const
dberr_t	set_zip_size (const buf_frame_t *page) UNIV_NOTHROW
ulint	get_page_size () const

Protected Member Functions
buf_frame_t *	get_frame (buf_block_t *block) const UNIV_NOTHROW
dberr_t	periodic_check () UNIV_NOTHROW
const xdes_t *	xdes (ulint page_no, const page_t *page) const UNIV_NOTHROW
dberr_t	set_current_xdes (ulint page_no, const page_t *page) UNIV_NOTHROW
bool	is_root_page (const page_t *page) const UNIV_NOTHROW
bool	is_free (ulint page_no) const UNIV_NOTHROW
Protected Member Functions inherited from PageCallback
	PageCallback (const PageCallback &)
PageCallback &	operator= (const PageCallback &)

Protected Attributes
trx_t *	m_trx
ulint	m_space
ulint	m_free_limit
ulint	m_size
xdes_t *	m_xdes
ulint	m_xdes_page_no
ulint	m_space_flags
ulint	m_table_flags

Additional Inherited Members
Public Attributes inherited from PageCallback
ulint	m_zip_size
ulint	m_page_size
os_file_t	m_file
const char *	m_filepath

Detailed Description

Functor that is called for each physical page that is read from the

tablespace file.

Definition at line 371 of file row0import.cc.

Constructor & Destructor Documentation

AbstractCallback::AbstractCallback ( trx_t *  trx )

inline

Constructor

Parameters

trx	- covering transaction

Definition at line 375 of file row0import.cc.

virtual AbstractCallback::~AbstractCallback ( )

inlinevirtual

Free any extent descriptor instance

Definition at line 386 of file row0import.cc.

Member Function Documentation

buf_frame_t* AbstractCallback::get_frame ( buf_block_t *  block ) const

inlineprotected

Get the data page depending on the table type, compressed or not.

Parameters

block

- block read from disk

Return values

the	buffer frame

Definition at line 410 of file row0import.cc.

dberr_t AbstractCallback::init ( os_offset_t  file_size, const buf_block_t *  block  )

virtual

Determine the page size to use for traversing the tablespace

Parameters

file_size	- size of the tablespace file in bytes
block	- contents of the first page in the tablespace file.

Return values

DB_SUCCESS

or error code.

Implements PageCallback.

Definition at line 556 of file row0import.cc.

Here is the call graph for this function:

bool AbstractCallback::is_compressed_table ( ) const

inline

Returns

true if compressed table.

Definition at line 400 of file row0import.cc.

bool AbstractCallback::is_free ( ulint  page_no ) const

inlineprotected

Check if the page is marked as free in the extent descriptor.

Parameters

page_no

- page number to check in the extent descriptor.

Returns

true if the page is marked as free

Definition at line 503 of file row0import.cc.

Here is the call graph for this function:

bool AbstractCallback::is_root_page ( const page_t *  page ) const

inlineprotected

Returns

true if it is a root page

Definition at line 491 of file row0import.cc.

Here is the call graph for this function:

dberr_t AbstractCallback::periodic_check ( )

inlineprotected

Check for session interrupt. If required we could

even flush to disk here every N pages.

Return values

DB_SUCCESS

or error code

Definition at line 422 of file row0import.cc.

Here is the call graph for this function:

dberr_t AbstractCallback::set_current_xdes ( ulint  page_no, const page_t *  page  )

inlineprotected

Set the current page directory (xdes). If the extent descriptor is marked as free then free the current extent descriptor and set it to 0. This implies that all pages that are covered by this extent descriptor are also freed.

Parameters

page_no	- offset of page within the file
page	- page contents

Returns

DB_SUCCESS or error code.

Definition at line 456 of file row0import.cc.

Here is the call graph for this function:

const xdes_t* AbstractCallback::xdes ( ulint  page_no, const page_t *  page  ) const

inlineprotected

Get the physical offset of the extent descriptor within the page.

Parameters

page_no	- page number of the extent descriptor
page	- contents of the page containing the extent descriptor.

Returns

the start of the xdes array in a page

Definition at line 436 of file row0import.cc.

Here is the call graph for this function:

Member Data Documentation

ulint AbstractCallback::m_free_limit

protected

Minimum page number for which the free list has not been

initialized: the pages >= this limit are, by definition, free; note that in a single-table tablespace where size < 64 pages, this number is 64, i.e., we have initialized the space about the first extent, but have not physically allocted those pages to the file.

See Also

FSP_LIMIT.

Definition at line 532 of file row0import.cc.

ulint AbstractCallback::m_size

protected

Current size of the space in pages

Definition at line 535 of file row0import.cc.

ulint AbstractCallback::m_space

protected

Space id of the file being iterated over.

Definition at line 524 of file row0import.cc.

ulint AbstractCallback::m_space_flags

protected

Flags value read from the header page

Definition at line 544 of file row0import.cc.

ulint AbstractCallback::m_table_flags

protected

Derived from m_space_flags and row format type, the row format

type is determined from the page header.

Definition at line 548 of file row0import.cc.

trx_t* AbstractCallback::m_trx

protected

Covering transaction.

Definition at line 521 of file row0import.cc.

xdes_t* AbstractCallback::m_xdes

protected

Current extent descriptor page

Definition at line 538 of file row0import.cc.

ulint AbstractCallback::m_xdes_page_no

protected

Physical page offset in the file of the extent descriptor

Definition at line 541 of file row0import.cc.

---

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

• storage/innobase/row/row0import.cc