Table PERFORMANCE_SCHEMA.ERROR_LOG. More...

#include <table_error_log.h>

Inheritance diagram for table_error_log:

Public Member Functions
	~table_error_log () override=default

Public Member Functions inherited from cursor_by_error_log
virtual void	reset_position (void) override
	Reset cursor position. More...

virtual int	rnd_next () override
	Read next row (from ring-buffer into table). More...

virtual int	rnd_pos (const void *pos) override
	Random pos. More...

virtual int	index_next () override
	Go to next entry in index and retrieve the matching error log event. More...

	~cursor_by_error_log () override=default

Public Member Functions inherited from PFS_engine_table
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	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_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 ()

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	~PFS_engine_table ()=default
	Destructor. More...

Static Public Member Functions
static PFS_engine_table *	create (PFS_engine_table_share *)
	Table builder. More...

Static Public Member Functions inherited from cursor_by_error_log
static ha_rows	get_row_count ()
	Get row-count (by getting the number of events in the ring-buffer) More...

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

Static Public Attributes
static PFS_engine_table_share	m_share
	Table share. More...

Protected Member Functions
virtual int	read_row_values (TABLE table, unsigned char buf, Field **fields, bool read_all) override
	Fill in a row's fields from this class's buffer. More...

	table_error_log ()

virtual int	index_init (uint idx, bool sorted) override
	Create an index for the column with the ordinal idx. More...

Protected Member Functions inherited from cursor_by_error_log
	cursor_by_error_log (const PFS_engine_table_share *share)

Protected Member Functions inherited from PFS_engine_table
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...

Private Member Functions
virtual int	make_row (log_sink_pfs_event *row) override
	Copy an event from the ring-buffer into this class's buffer. More...

Private Attributes
log_sink_pfs_event	m_header
	Current row. More...

char	m_message [LOG_BUFF_MAX]
	message (DATA column) from ring-buffer More...

Static Private Attributes
static THR_LOCK	m_table_lock
	Table share lock. More...

static Plugin_table	m_table_def
	Table definition. More...

Additional Inherited Members
Protected Attributes inherited from cursor_by_error_log
PFS_index_error_log *	m_opened_index

Protected Attributes inherited from PFS_engine_table
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

Table PERFORMANCE_SCHEMA.ERROR_LOG.

Constructor & Destructor Documentation

◆ table_error_log()

table_error_log::table_error_log ( )

protected

◆ ~table_error_log()

table_error_log::~table_error_log ( )

overridedefault

Member Function Documentation

◆ create()

PFS_engine_table * table_error_log::create ( PFS_engine_table_share * )

static

Table builder.

◆ index_init()

int table_error_log::index_init	(	uint	idx,
		bool	sorted
	)

overrideprotectedvirtual

Create an index for the column with the ordinal idx.

Create an index on the column with the ordinal idx.

Parameters

idx	ordinal of the column to create an index for
sorted	unused

Return values

0 success

Reimplemented from PFS_engine_table.

◆ make_row()

int table_error_log::make_row ( log_sink_pfs_event * e )

overrideprivatevirtual

Copy an event from the ring-buffer into this class's buffer.

Copy a log-event from the ring-buffer into (the private variables of our instance of the class) table_error_log.

Caller must hold a read lock on the ring-buffer.

Parameters

e	the event in the ring-buffer

Return values

0 success

Implements cursor_by_error_log.

◆ read_row_values()

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

overrideprotectedvirtual

Fill in a row's fields from this class's buffer.

Fill in a row's fields from internal representation (i.e.

from the private variables in the instance of table_error_log that contain the current row).

As we have previously copied the event from the ring-buffer, holding a read-lock on the ring-buffer is not necessary here.

Return values

0 success

Implements PFS_engine_table.

Member Data Documentation

◆ m_header

log_sink_pfs_event table_error_log::m_header

private

Current row.

event-header copied from ring-buffer

◆ m_message

char table_error_log::m_message[LOG_BUFF_MAX]

private

message (DATA column) from ring-buffer

◆ m_share

PFS_engine_table_share table_error_log::m_share

static

Initial value:

= {
    &pfs_readonly_acl,       
    table_error_log::create, 
    nullptr,                 
    nullptr,                 
    cursor_by_error_log::get_row_count,
    sizeof(pos_t), 
    &m_table_lock,
    &m_table_def,
    false, 
    PFS_engine_table_proxy(),
    {0},  
    false 
}

Table share.

◆ m_table_def

Plugin_table table_error_log::m_table_def

staticprivate

Table definition.

◆ m_table_lock

THR_LOCK table_error_log::m_table_lock

staticprivate

Table share lock.

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

storage/perfschema/table_error_log.h
storage/perfschema/table_error_log.cc

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ table_error_log()

◆ ~table_error_log()

Member Function Documentation

◆ create()

◆ index_init()

◆ make_row()

◆ read_row_values()

Member Data Documentation

◆ m_header

◆ m_message

◆ m_share

◆ m_table_def

◆ m_table_lock