PFS_engine_table Class Reference

An abstract PERFORMANCE_SCHEMA table. More...

#include <pfs_engine_table.h>

Inheritance diagram for PFS_engine_table:

Public Member Functions
int	read_row (TABLE *table, unsigned char *buf, Field **fields)
	Read a table row. More...
int	update_row (TABLE *table, const unsigned char *old_buf, unsigned char *new_buf, Field **fields)
	Update a table row. More...
int	delete_row (TABLE *table, const unsigned char *buf, Field **fields)
	Delete a row from this table. More...
virtual int	rnd_init (bool scan)
	Initialize table scan. More...
virtual int	rnd_next ()=0
	Fetch the next row in this cursor. More...
virtual int	index_init (uint idx, bool sorted)
virtual int	index_read (KEY *key_infos, uint index, const uchar *key, uint key_len, enum ha_rkey_function find_flag)
	Positions an index cursor to the index specified in the handle. More...
virtual int	index_read_last (KEY *key_infos, const uchar *key, uint key_len)
virtual int	index_next ()
	Find key in index, read record. More...
virtual int	index_next_same (const uchar *key, uint key_len)
	Reads the next row matching the given key value. More...
virtual int	index_prev ()
virtual int	index_first ()
virtual int	index_last ()
virtual int	rnd_pos (const void *pos)=0
	Fetch a row by position. More...
void	get_position (void *ref)
	Get the position of the current row. More...
void	set_position (const void *ref)
	Set the table cursor at a given position. More...
virtual void	reset_position ()=0
	Reset the cursor position to the beginning of the table. More...
virtual	~PFS_engine_table ()=default
	Destructor. More...

Static Public Member Functions
static PFS_engine_table_share *	find_engine_table_share (const char *name)
	Find a table share by name. More...

Protected Member Functions
virtual int	read_row_values (TABLE *table, unsigned char *buf, Field **fields, bool read_all)=0
	Read the current row values. More...
virtual int	update_row_values (TABLE *table, const unsigned char *old_buf, unsigned char *new_buf, Field **fields)
	Update the current row values. More...
virtual int	delete_row_values (TABLE *table, const unsigned char *buf, Field **fields)
	Delete a row. More...
	PFS_engine_table (const PFS_engine_table_share *share, void *pos)
	Constructor. More...

Protected Attributes
const PFS_engine_table_share *	m_share_ptr
	Table share. More...
void *	m_pos_ptr
	Opaque pointer to the m_pos position of this cursor. More...
time_normalizer *	m_normalizer
	Current normalizer. More...
PFS_engine_index_abstract *	m_index
	Current index. More...

Detailed Description

An abstract PERFORMANCE_SCHEMA table.

Every table implemented in the performance schema schema and storage engine derives from this class.

Constructor & Destructor Documentation

~PFS_engine_table()

virtual PFS_engine_table::~PFS_engine_table ( )

virtualdefault

Destructor.

PFS_engine_table()

PFS_engine_table::PFS_engine_table ( const PFS_engine_table_share *  share, void *  pos  )

inlineprotected

Constructor.

Parameters

share	table share
pos	address of the m_pos position member

Member Function Documentation

index_first()

virtual int PFS_engine_table::index_first ( )

inlinevirtual

index_init()

virtual int PFS_engine_table::index_init ( uint  idx, bool  sorted  )

inlinevirtual

Reimplemented in table_accounts, table_data_lock_waits, table_data_locks, table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_error_log, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esmh_by_digest, table_esmh_global, table_esms_by_account_by_event_name, table_esms_by_digest, table_esms_by_host_by_event_name, table_esms_by_program, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_current, table_events_stages_history, table_events_statements_current, table_events_statements_history, table_events_transactions_current, table_events_transactions_history, table_events_waits_current, table_events_waits_history, table_events_waits_summary_by_instance, table_ews_by_account_by_event_name, table_ews_by_host_by_event_name, table_ews_by_thread_by_event_name, table_ews_by_user_by_event_name, table_ews_global_by_event_name, table_file_instances, table_file_summary_by_event_name, table_file_summary_by_instance, table_global_status, table_global_variables, table_host_cache, table_hosts, table_metadata_locks, table_mems_by_account_by_event_name, table_mems_by_host_by_event_name, table_mems_by_thread_by_event_name, table_mems_by_user_by_event_name, table_mems_global_by_event_name, table_os_global_by_type, table_persisted_variables, table_plugin_table, table_prepared_stmt_instances, table_processlist, table_replication_applier_configuration, table_replication_applier_status, table_replication_applier_status_by_coordinator, table_replication_applier_status_by_worker, table_replication_connection_configuration, table_replication_connection_status, table_session_connect, table_session_status, table_session_variables, table_setup_actors, table_setup_consumers, table_setup_instruments, table_setup_meters, table_setup_metrics, table_setup_objects, table_setup_threads, table_socket_instances, table_socket_summary_by_event_name, table_socket_summary_by_instance, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_mutex_instances, table_rwlock_instances, table_cond_instances, table_table_handles, table_threads, table_tiws_by_index_usage, table_tiws_by_table, table_tlws_by_table, table_user_defined_functions, table_users, table_uvar_by_thread, table_variables_by_thread, cursor_by_thread_connect_attr, and table_all_instr.

index_last()

virtual int PFS_engine_table::index_last ( )

inlinevirtual

index_next()

virtual int PFS_engine_table::index_next ( )

inlinevirtual

Find key in index, read record.

Reimplemented in cursor_by_account, cursor_by_error_log, cursor_by_host, cursor_by_thread, cursor_by_thread_connect_attr, cursor_by_user, table_all_instr, table_data_lock_waits, table_data_locks, table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esmh_by_digest, table_esmh_global, table_esms_by_account_by_event_name, table_esms_by_digest, table_esms_by_host_by_event_name, table_esms_by_program, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_current, table_events_stages_history, table_events_statements_current, table_events_statements_history, table_events_transactions_current, table_events_transactions_history, table_events_waits_current, table_events_waits_history, table_ews_by_account_by_event_name, table_ews_by_host_by_event_name, table_ews_by_thread_by_event_name, table_ews_by_user_by_event_name, table_ews_global_by_event_name, table_file_instances, table_file_summary_by_event_name, table_file_summary_by_instance, table_global_status, table_global_variables, table_host_cache, table_metadata_locks, table_mems_by_account_by_event_name, table_mems_by_host_by_event_name, table_mems_by_thread_by_event_name, table_mems_by_user_by_event_name, table_mems_global_by_event_name, table_os_global_by_type, table_persisted_variables, table_plugin_table, table_prepared_stmt_instances, table_replication_applier_configuration, table_replication_applier_status, table_replication_applier_status_by_coordinator, table_replication_applier_status_by_worker, table_replication_connection_configuration, table_replication_connection_status, table_session_connect, table_session_status, table_session_variables, table_setup_actors, table_setup_consumers, table_setup_instruments, table_setup_meters, table_setup_metrics, table_setup_objects, table_setup_threads, table_socket_instances, table_socket_summary_by_event_name, table_socket_summary_by_instance, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_mutex_instances, table_rwlock_instances, table_cond_instances, table_table_handles, table_tiws_by_index_usage, table_tiws_by_table, table_tlws_by_table, table_user_defined_functions, table_uvar_by_thread, and table_variables_by_thread.

index_prev()

virtual int PFS_engine_table::index_prev ( )

inlinevirtual

index_read_last()

virtual int PFS_engine_table::index_read_last ( KEY *  key_infos, const uchar *  key, uint  key_len  )

inlinevirtual

read_row_values()

virtual int PFS_engine_table::read_row_values ( TABLE *  table, unsigned char *  buf, Field **  fields, bool  read_all  )

protectedpure virtual

Read the current row values.

Parameters

table	Table handle
buf	row buffer
fields	Table fields
read_all	true if all columns are read.

Implemented in table_accounts, table_binary_log_transaction_compression_stats, table_data_lock_waits, table_data_locks, table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_error_log, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esmh_by_digest, table_esmh_global, table_esms_by_account_by_event_name, table_esms_by_digest, table_esms_by_host_by_event_name, table_esms_by_program, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_common, table_events_statements_common, table_events_transactions_common, table_events_waits_common, table_events_waits_summary_by_instance, table_ews_by_account_by_event_name, table_ews_by_host_by_event_name, table_ews_by_thread_by_event_name, table_ews_by_user_by_event_name, table_ews_global_by_event_name, table_file_instances, table_file_summary_by_event_name, table_file_summary_by_instance, table_global_status, table_global_variables, table_host_cache, table_hosts, table_keyring_component_status, table_keyring_keys, table_log_status, table_metadata_locks, table_mems_by_account_by_event_name, table_mems_by_host_by_event_name, table_mems_by_thread_by_event_name, table_mems_by_user_by_event_name, table_mems_global_by_event_name, table_os_global_by_type, table_performance_timers, table_persisted_variables, table_plugin_table, table_prepared_stmt_instances, table_processlist, table_replication_applier_configuration, table_replication_applier_filters, table_replication_applier_global_filters, table_replication_applier_status, table_replication_applier_status_by_coordinator, table_replication_applier_status_by_worker, table_replication_asynchronous_connection_failover, table_replication_connection_configuration, table_replication_connection_status, table_replication_group_member_stats, table_replication_group_members, table_rpl_async_connection_failover_managed, table_session_connect, table_session_status, table_session_variables, table_setup_actors, table_setup_consumers, table_setup_instruments, table_setup_meters, table_setup_metrics, table_setup_objects, table_setup_threads, table_socket_instances, table_socket_summary_by_event_name, table_socket_summary_by_instance, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_mutex_instances, table_rwlock_instances, table_cond_instances, table_table_handles, table_threads, table_tiws_by_index_usage, table_tiws_by_table, table_tls_channel_status, table_tlws_by_table, table_user_defined_functions, table_users, table_uvar_by_thread, table_variables_by_thread, and table_variables_info.

reset_position()

virtual void PFS_engine_table::reset_position ( )

pure virtual

Reset the cursor position to the beginning of the table.

Implemented in cursor_by_account, cursor_by_error_log, cursor_by_host, cursor_by_thread, cursor_by_thread_connect_attr, cursor_by_user, table_all_instr, table_binary_log_transaction_compression_stats, table_data_lock_waits, table_data_locks, table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esmh_by_digest, table_esmh_global, table_esms_by_account_by_event_name, table_esms_by_digest, table_esms_by_host_by_event_name, table_esms_by_program, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_current, table_events_stages_history, table_events_stages_history_long, table_events_statements_current, table_events_statements_history, table_events_statements_history_long, table_events_transactions_current, table_events_transactions_history, table_events_transactions_history_long, table_events_waits_current, table_events_waits_history, table_events_waits_history_long, table_ews_by_account_by_event_name, table_ews_by_host_by_event_name, table_ews_by_thread_by_event_name, table_ews_by_user_by_event_name, table_ews_global_by_event_name, table_file_instances, table_file_summary_by_event_name, table_file_summary_by_instance, table_global_status, table_global_variables, table_host_cache, table_keyring_component_status, table_keyring_keys, table_log_status, table_metadata_locks, table_mems_by_account_by_event_name, table_mems_by_host_by_event_name, table_mems_by_thread_by_event_name, table_mems_by_user_by_event_name, table_mems_global_by_event_name, table_os_global_by_type, table_performance_timers, table_persisted_variables, table_plugin_table, table_prepared_stmt_instances, table_replication_applier_configuration, table_replication_applier_filters, table_replication_applier_global_filters, table_replication_applier_status, table_replication_applier_status_by_coordinator, table_replication_applier_status_by_worker, table_replication_asynchronous_connection_failover, table_replication_connection_configuration, table_replication_connection_status, table_replication_group_member_stats, table_replication_group_members, table_rpl_async_connection_failover_managed, table_session_status, table_session_variables, table_setup_actors, table_setup_consumers, table_setup_instruments, table_setup_meters, table_setup_metrics, table_setup_objects, table_setup_threads, table_socket_instances, table_socket_summary_by_event_name, table_socket_summary_by_instance, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_mutex_instances, table_rwlock_instances, table_cond_instances, table_table_handles, table_tiws_by_index_usage, table_tiws_by_table, table_tls_channel_status, table_tlws_by_table, table_user_defined_functions, table_uvar_by_thread, table_variables_by_thread, and table_variables_info.

rnd_init()

virtual int PFS_engine_table::rnd_init ( bool  scan )

inlinevirtual

Initialize table scan.

Reimplemented in table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esms_by_account_by_event_name, table_esms_by_host_by_event_name, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_current, table_events_stages_history, table_events_stages_history_long, table_events_statements_current, table_events_statements_history, table_events_statements_history_long, table_events_transactions_current, table_events_transactions_history, table_events_transactions_history_long, table_global_status, table_global_variables, table_persisted_variables, table_plugin_table, table_processlist, table_replication_asynchronous_connection_failover, table_rpl_async_connection_failover_managed, table_session_status, table_session_variables, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_table_handles, table_tiws_by_index_usage, table_tiws_by_table, table_tlws_by_table, table_variables_by_thread, and table_variables_info.

rnd_next()

virtual int PFS_engine_table::rnd_next ( )

pure virtual

Fetch the next row in this cursor.

Implemented in cursor_by_account, cursor_by_error_log, cursor_by_host, cursor_by_thread, cursor_by_thread_connect_attr, cursor_by_user, table_all_instr, table_binary_log_transaction_compression_stats, table_data_lock_waits, table_data_locks, table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esmh_by_digest, table_esmh_global, table_esms_by_account_by_event_name, table_esms_by_digest, table_esms_by_host_by_event_name, table_esms_by_program, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_current, table_events_stages_history, table_events_stages_history_long, table_events_statements_current, table_events_statements_history, table_events_statements_history_long, table_events_transactions_current, table_events_transactions_history, table_events_transactions_history_long, table_events_waits_current, table_events_waits_history, table_events_waits_history_long, table_ews_by_account_by_event_name, table_ews_by_host_by_event_name, table_ews_by_thread_by_event_name, table_ews_by_user_by_event_name, table_ews_global_by_event_name, table_file_instances, table_file_summary_by_event_name, table_file_summary_by_instance, table_global_status, table_global_variables, table_host_cache, table_keyring_component_status, table_keyring_keys, table_log_status, table_metadata_locks, table_mems_by_account_by_event_name, table_mems_by_host_by_event_name, table_mems_by_thread_by_event_name, table_mems_by_user_by_event_name, table_mems_global_by_event_name, table_os_global_by_type, table_performance_timers, table_persisted_variables, table_plugin_table, table_prepared_stmt_instances, table_replication_applier_configuration, table_replication_applier_filters, table_replication_applier_global_filters, table_replication_applier_status, table_replication_applier_status_by_coordinator, table_replication_applier_status_by_worker, table_replication_asynchronous_connection_failover, table_replication_connection_configuration, table_replication_connection_status, table_replication_group_member_stats, table_replication_group_members, table_rpl_async_connection_failover_managed, table_session_status, table_session_variables, table_setup_actors, table_setup_consumers, table_setup_instruments, table_setup_meters, table_setup_metrics, table_setup_objects, table_setup_threads, table_socket_instances, table_socket_summary_by_event_name, table_socket_summary_by_instance, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_mutex_instances, table_rwlock_instances, table_cond_instances, table_table_handles, table_tiws_by_index_usage, table_tiws_by_table, table_tls_channel_status, table_tlws_by_table, table_user_defined_functions, table_uvar_by_thread, table_variables_by_thread, and table_variables_info.

rnd_pos()

virtual int PFS_engine_table::rnd_pos ( const void *  pos )

pure virtual

Fetch a row by position.

Parameters

pos	position to fetch

Implemented in cursor_by_account, cursor_by_error_log, cursor_by_host, cursor_by_thread, cursor_by_thread_connect_attr, cursor_by_user, table_all_instr, table_binary_log_transaction_compression_stats, table_data_lock_waits, table_data_locks, table_ees_by_account_by_error, table_ees_by_host_by_error, table_ees_by_thread_by_error, table_ees_by_user_by_error, table_ees_global_by_error, table_esgs_by_account_by_event_name, table_esgs_by_host_by_event_name, table_esgs_by_thread_by_event_name, table_esgs_by_user_by_event_name, table_esgs_global_by_event_name, table_esmh_by_digest, table_esmh_global, table_esms_by_account_by_event_name, table_esms_by_digest, table_esms_by_host_by_event_name, table_esms_by_program, table_esms_by_thread_by_event_name, table_esms_by_user_by_event_name, table_esms_global_by_event_name, table_ets_by_account_by_event_name, table_ets_by_host_by_event_name, table_ets_by_thread_by_event_name, table_ets_by_user_by_event_name, table_ets_global_by_event_name, table_events_stages_current, table_events_stages_history, table_events_stages_history_long, table_events_statements_current, table_events_statements_history, table_events_statements_history_long, table_events_transactions_current, table_events_transactions_history, table_events_transactions_history_long, table_events_waits_current, table_events_waits_history, table_events_waits_history_long, table_ews_by_account_by_event_name, table_ews_by_host_by_event_name, table_ews_by_thread_by_event_name, table_ews_by_user_by_event_name, table_ews_global_by_event_name, table_file_instances, table_file_summary_by_event_name, table_file_summary_by_instance, table_global_status, table_global_variables, table_host_cache, table_keyring_component_status, table_keyring_keys, table_log_status, table_metadata_locks, table_mems_by_account_by_event_name, table_mems_by_host_by_event_name, table_mems_by_thread_by_event_name, table_mems_by_user_by_event_name, table_mems_global_by_event_name, table_os_global_by_type, table_performance_timers, table_persisted_variables, table_plugin_table, table_prepared_stmt_instances, table_replication_applier_configuration, table_replication_applier_filters, table_replication_applier_global_filters, table_replication_applier_status, table_replication_applier_status_by_coordinator, table_replication_applier_status_by_worker, table_replication_asynchronous_connection_failover, table_replication_connection_configuration, table_replication_connection_status, table_replication_group_member_stats, table_replication_group_members, table_rpl_async_connection_failover_managed, table_session_status, table_session_variables, table_setup_actors, table_setup_consumers, table_setup_instruments, table_setup_meters, table_setup_metrics, table_setup_objects, table_setup_threads, table_socket_instances, table_socket_summary_by_event_name, table_socket_summary_by_instance, table_status_by_account, table_status_by_host, table_status_by_thread, table_status_by_user, table_mutex_instances, table_rwlock_instances, table_cond_instances, table_table_handles, table_tiws_by_index_usage, table_tiws_by_table, table_tls_channel_status, table_tlws_by_table, table_user_defined_functions, table_uvar_by_thread, table_variables_by_thread, and table_variables_info.

Member Data Documentation

m_index

PFS_engine_index_abstract* PFS_engine_table::m_index

protected

Current index.

m_normalizer

time_normalizer* PFS_engine_table::m_normalizer

protected

Current normalizer.

m_pos_ptr

void* PFS_engine_table::m_pos_ptr

protected

Opaque pointer to the m_pos position of this cursor.

m_share_ptr

const PFS_engine_table_share* PFS_engine_table::m_share_ptr

protected

Table share.

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

• storage/perfschema/pfs_engine_table.h
• storage/perfschema/pfs_engine_table.cc