row_log_table_blob_t Class Reference

Tracks BLOB allocation during online ALTER TABLE. More...

Public Member Functions
	row_log_table_blob_t (ulonglong offset_arg)
	Constructor (declaring a BLOB freed) More...
void	blob_free (ulonglong offset_arg)
	Declare a BLOB freed again. More...
void	blob_alloc (ulonglong offset_arg)
	Declare a freed BLOB reused. More...
bool	is_freed (ulonglong offset_arg) const
	Determine if a BLOB was freed at a given log position. More...

Private Attributes
ulonglong	old_offset
	Old offset, in case a page was freed, reused, freed, ... More...
ulonglong	free_offset
	Offset of last blob_free() More...
ulonglong	offset
	Byte offset to the log file. More...

Static Private Attributes
static const ulonglong	BLOB_FREED = ~0ULL
	Magic value for a freed BLOB. More...

Detailed Description

Tracks BLOB allocation during online ALTER TABLE.

Constructor & Destructor Documentation

row_log_table_blob_t()

row_log_table_blob_t::row_log_table_blob_t ( ulonglong  offset_arg )

inline

Constructor (declaring a BLOB freed)

Parameters

offset_arg

row_log_t::tail::total

Member Function Documentation

blob_alloc()

void row_log_table_blob_t::blob_alloc ( ulonglong  offset_arg )

inline

Declare a freed BLOB reused.

Parameters

offset_arg

row_log_t::tail::total

blob_free()

void row_log_table_blob_t::blob_free ( ulonglong  offset_arg )

inline

Declare a BLOB freed again.

Parameters

offset_arg

row_log_t::tail::total

is_freed()

bool row_log_table_blob_t::is_freed ( ulonglong  offset_arg ) const

inline

Determine if a BLOB was freed at a given log position.

Parameters

offset_arg

row_log_t::head::total after the log record

Returns

true if freed

Member Data Documentation

BLOB_FREED

const ulonglong row_log_table_blob_t::BLOB_FREED = ~0ULL

staticprivate

Magic value for a freed BLOB.

free_offset

ulonglong row_log_table_blob_t::free_offset

private

Offset of last blob_free()

offset

ulonglong row_log_table_blob_t::offset

private

Byte offset to the log file.

old_offset

ulonglong row_log_table_blob_t::old_offset

private

Old offset, in case a page was freed, reused, freed, ...

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

• storage/innobase/row/row0log.cc