binlog::monitoring::Transaction_compression Class Reference

#include <context.h>

Public Member Functions
void	update (log_type log_type, mysql::binlog::event::compression::type comp_type, Gtid &gtid, uint64_t transaction_timestamp, uint64_t comp_bytes, uint64_t uncomp_bytes, Tsid_map *tsid_map=global_tsid_map)
	Update this probe's stats. More...
void	get_stats (std::vector< Compression_stats * > &stats)
	Gets the contents of the probe. More...
int	number_stats_rows ()
	Gets the number of stats in the probe. More...
void	reset ()
	Resets the stats of this probe to zero. More...
	Transaction_compression ()
	Constructor. More...
virtual	~Transaction_compression ()
	Destructor. More...

Protected Member Functions
void	init ()
	Allocates this probe's internal structures. More...
void	destroy ()
	Claims this probe's internal resources. More...

Protected Attributes
std::map< std::pair< log_type, mysql::binlog::event::compression::type >, Compression_stats * >	m_stats
	The map that contains rows of stats in the probe. More...

Constructor & Destructor Documentation

Transaction_compression()

binlog::monitoring::Transaction_compression::Transaction_compression

(

)

Constructor.

Transaction_compression -----------------------------------------—.

The constructed object is reset after this returns.

~Transaction_compression()

binlog::monitoring::Transaction_compression::~Transaction_compression ( )

virtual

Destructor.

Once the destructor returns the internal data structures have been destroyed.

Member Function Documentation

destroy()

void binlog::monitoring::Transaction_compression::destroy ( )

protected

Claims this probe's internal resources.

get_stats()

void binlog::monitoring::Transaction_compression::get_stats

(

std::vector< Compression_stats * > &

stats

)

Gets the contents of the probe.

The contents are a copy of the internal stats and as such, the caller must free the resources in stats once they are no longer needed.

Parameters

stats

the container to fill in with copies of the stats in the probe.

init()

void binlog::monitoring::Transaction_compression::init ( )

protected

Allocates this probe's internal structures.

number_stats_rows()

int binlog::monitoring::Transaction_compression::number_stats_rows

(

)

Gets the number of stats in the probe.

Each combination of log_type and comp_type creates a row. Only those rows that have stats collected are considered.

Returns

the number of combinations between log_type and comp_type that have stats collected.

reset()

void binlog::monitoring::Transaction_compression::reset

(

)

Resets the stats of this probe to zero.

update()

void binlog::monitoring::Transaction_compression::update	(	log_type	log_type,
		mysql::binlog::event::compression::type	comp_type,
		Gtid &	gtid,
		uint64_t	transaction_timestamp,
		uint64_t	comp_bytes,
		uint64_t	uncomp_bytes,
		Tsid_map *	tsid_map = global_tsid_map
	)

Update this probe's stats.

Parameters

log_type	the type of the log that this invocation refers to.
comp_type	the compression type for this invocation.
gtid	the transaction identifier for this invocation.
transaction_timestamp	the transaction commit timestamp in seconds since the UNIX epoch.
comp_bytes	the bytes compressed by this transaction.
uncomp_bytes	the bytes uncompressed by this transaction.
tsid_map	the Tsid_map to use to create a string representation from the transaction identifier provided.

Member Data Documentation

m_stats

std::map<std::pair<log_type, mysql::binlog::event::compression::type>, Compression_stats *> binlog::monitoring::Transaction_compression::m_stats

protected

The map that contains rows of stats in the probe.

A stats row is a combination of log type and compression type.

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

• sql/binlog/monitoring/context.h
• sql/binlog/monitoring/context.cc