binlog_trx_cache_data Class Reference

Inheritance diagram for binlog_trx_cache_data:

Public Member Functions
	binlog_trx_cache_data (binlog_cache_mngr &cache_mngr, bool trx_cache_arg, ulong *ptr_binlog_cache_use_arg, ulong *ptr_binlog_cache_disk_use_arg)
void	reset () override
	Reset the cache to unused state when the transaction is finished. More...
bool	cannot_rollback () const
void	set_cannot_rollback ()
my_off_t	get_prev_position () const
void	set_prev_position (my_off_t pos)
void	restore_prev_position ()
void	restore_savepoint (my_off_t pos)
void	truncate (THD *thd, bool all)
	This function truncates the transactional cache upon committing or rolling back either a transaction or a statement. More...
void	truncate (my_off_t pos)
Public Member Functions inherited from binlog_cache_data
	binlog_cache_data (class binlog_cache_mngr &cache_mngr, bool trx_cache_arg, ulong *ptr_binlog_cache_use_arg, ulong *ptr_binlog_cache_disk_use_arg)
bool	open (my_off_t cache_size, my_off_t max_cache_size)
Binlog_cache_storage *	get_cache ()
int	finalize (THD *thd, Log_event *end_event)
	This function finalizes the cache preparing for commit or rollback. More...
int	finalize (THD *thd, Log_event *end_event, XID_STATE *xs)
	The method writes XA END query to XA-prepared transaction's cache and calls the "basic" finalize(). More...
int	flush (THD *thd, my_off_t *bytes, bool *wrote_xid, bool parallelization_barrier)
	Flush caches to the binary log. More...
int	write_event (Log_event *event)
void	set_event_counter (size_t event_counter)
size_t	get_event_counter () const
size_t	get_compressed_size () const
size_t	get_decompressed_size () const
mysql::binlog::event::compression::type	get_compression_type () const
void	set_compressed_size (size_t s)
void	set_decompressed_size (size_t s)
void	set_compression_type (mysql::binlog::event::compression::type t)
virtual	~binlog_cache_data ()
bool	is_binlog_empty () const
bool	is_finalized () const
Rows_log_event *	pending () const
void	set_pending (Rows_log_event *const pending)
void	set_incident (std::string_view incident_message="Non-transactional changes were not written to the binlog.")
bool	has_incident (void) const
bool	has_xid () const
bool	is_trx_cache () const
my_off_t	get_byte_position () const
void	cache_state_checkpoint (my_off_t pos_to_checkpoint)
void	cache_state_rollback (my_off_t pos_to_rollback)
bool	may_have_sbr_stmts ()
	Returns information about the cache content with respect to the binlog_format of the events. More...
bool	has_empty_transaction ()
	Check if the binlog cache contains an empty transaction, which has two binlog events "BEGIN" and "COMMIT". More...
bool	is_empty_or_has_empty_transaction ()
	Check if the binlog cache is empty or contains an empty transaction, which has two binlog events "BEGIN" and "COMMIT". More...

Private Member Functions
binlog_trx_cache_data &	operator= (const binlog_trx_cache_data &info)
	binlog_trx_cache_data (const binlog_trx_cache_data &info)

Private Attributes
bool	m_cannot_rollback
my_off_t	before_stmt_pos

Additional Inherited Members
Protected Member Functions inherited from binlog_cache_data
void	truncate (my_off_t pos)
int	flush_pending_event (THD *thd)
	Flush pending event to the cache buffer. More...
int	remove_pending_event ()
	Remove the pending event. More...
bool	compress (THD *thd)
	Compress the current transaction "in-place", if possible. More...
Protected Attributes inherited from binlog_cache_data
std::map< my_off_t, cache_state >	cache_state_map
size_t	m_event_counter = 0
size_t	m_compressed_size = 0
size_t	m_decompressed_size = 0
mysql::binlog::event::compression::type	m_compression_type
struct binlog_cache_data::Flags	flags

Constructor & Destructor Documentation

binlog_trx_cache_data() [1/2]

binlog_trx_cache_data::binlog_trx_cache_data ( binlog_cache_mngr &  cache_mngr, bool  trx_cache_arg, ulong *  ptr_binlog_cache_use_arg, ulong *  ptr_binlog_cache_disk_use_arg  )

inline

binlog_trx_cache_data() [2/2]

binlog_trx_cache_data::binlog_trx_cache_data ( const binlog_trx_cache_data &  info )

private

Member Function Documentation

cannot_rollback()

bool binlog_trx_cache_data::cannot_rollback ( ) const

inline

get_prev_position()

my_off_t binlog_trx_cache_data::get_prev_position ( ) const

inline

operator=()

binlog_trx_cache_data & binlog_trx_cache_data::operator= ( const binlog_trx_cache_data &  info )

private

reset()

void binlog_trx_cache_data::reset ( )

inlineoverridevirtual

Reset the cache to unused state when the transaction is finished.

It drops all data in the cache and clears the flags of the transaction state.

Reimplemented from binlog_cache_data.

restore_prev_position()

void binlog_trx_cache_data::restore_prev_position ( )

inline

restore_savepoint()

void binlog_trx_cache_data::restore_savepoint ( my_off_t  pos )

inline

set_cannot_rollback()

void binlog_trx_cache_data::set_cannot_rollback ( )

inline

set_prev_position()

void binlog_trx_cache_data::set_prev_position ( my_off_t  pos )

inline

truncate()

void binlog_cache_data::truncate ( my_off_t  pos )

inline

Member Data Documentation

before_stmt_pos

my_off_t binlog_trx_cache_data::before_stmt_pos

private

m_cannot_rollback

bool binlog_trx_cache_data::m_cannot_rollback

private

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

• sql/binlog.cc