PFS_events_waits Struct Reference

A wait event record. More...

#include <pfs_events_waits.h>

Inheritance diagram for PFS_events_waits:

Public Attributes
events_waits_class	m_wait_class
	The type of wait. More...
enum_object_type	m_object_type
	Object type. More...
PFS_table_share *	m_weak_table_share
	Table share, for table operations only. More...
PFS_file *	m_weak_file
	File, for file operations only. More...
PFS_socket *	m_weak_socket
	Socket, for socket operations only. More...
PFS_metadata_lock *	m_weak_metadata_lock
	Metadata lock, for MDL operations only. More...
uint32	m_weak_version
	For weak pointers, target object version. More...
const void *	m_object_instance_addr
	Address in memory of the object instance waited on. More...
enum_operation_type	m_operation
	Operation performed. More...
size_t	m_number_of_bytes
	Number of bytes/rows read/written. More...
uint	m_index
	Index used. More...
ulong	m_flags
	Flags. More...
Public Attributes inherited from PFS_events
ulonglong	m_thread_internal_id
	THREAD_ID. More...
ulonglong	m_event_id
	EVENT_ID. More...
ulonglong	m_end_event_id
	END_EVENT_ID. More...
enum_event_type	m_event_type
	(EVENT_TYPE) More...
ulonglong	m_nesting_event_id
	NESTING_EVENT_ID. More...
enum_event_type	m_nesting_event_type
	NESTING_EVENT_TYPE. More...
uint	m_nesting_event_level
	NESTING_EVENT_LEVEL. More...
PFS_instr_class *	m_class
	Instrument metadata. More...
ulonglong	m_timer_start
	Timer start. More...
ulonglong	m_timer_end
	Timer end. More...
const char *	m_source_file
	Location of the instrumentation in the source code (file name). More...
uint	m_source_line
	Location of the instrumentation in the source code (line number). More...

Additional Inherited Members
Public Member Functions inherited from PFS_events
PFS_events &	operator= (const PFS_events &rhs)=default

Detailed Description

A wait event record.

Member Data Documentation

m_flags

ulong PFS_events_waits::m_flags

Flags.

m_index

uint PFS_events_waits::m_index

Index used.

This member is populated for TABLE I/O operations only.

m_number_of_bytes

size_t PFS_events_waits::m_number_of_bytes

Number of bytes/rows read/written.

This member is populated for FILE READ/WRITE operations, with a number of bytes. This member is populated for TABLE I/O operations, with a number of rows.

m_object_instance_addr

const void* PFS_events_waits::m_object_instance_addr

Address in memory of the object instance waited on.

m_object_type

enum_object_type PFS_events_waits::m_object_type

Object type.

m_operation

enum_operation_type PFS_events_waits::m_operation

Operation performed.

m_wait_class

events_waits_class PFS_events_waits::m_wait_class

The type of wait.

Readers:

• the consumer threads. Writers:
• the producer threads, in the instrumentation. Out of bound Writers:
• TRUNCATE EVENTS_WAITS_CURRENT
• TRUNCATE EVENTS_WAITS_HISTORY
• TRUNCATE EVENTS_WAITS_HISTORY_LONG

m_weak_file

PFS_file* PFS_events_waits::m_weak_file

File, for file operations only.

m_weak_metadata_lock

PFS_metadata_lock* PFS_events_waits::m_weak_metadata_lock

Metadata lock, for MDL operations only.

m_weak_socket

PFS_socket* PFS_events_waits::m_weak_socket

Socket, for socket operations only.

m_weak_table_share

PFS_table_share* PFS_events_waits::m_weak_table_share

Table share, for table operations only.

m_weak_version

uint32 PFS_events_waits::m_weak_version

For weak pointers, target object version.

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

• storage/perfschema/pfs_events_waits.h