pfs_instr_class.h File Reference

Performance schema instruments metadata (declarations). More...

#include "my_config.h"
#include <assert.h>
#include <sys/types.h>
#include <atomic>
#include "lf.h"
#include "my_compiler.h"
#include "my_inttypes.h"
#include "mysql_com.h"
#include "mysqld_error.h"
#include "prealloced_array.h"
#include "storage/perfschema/pfs_column_types.h"
#include "storage/perfschema/pfs_global.h"
#include "storage/perfschema/pfs_lock.h"
#include "storage/perfschema/pfs_name.h"
#include "storage/perfschema/pfs_stat.h"
#include "storage/perfschema/terminology_use_previous_enum.h"

Go to the source code of this file.

Classes
struct	PFS_instr_config
	User-defined instrument configuration. More...
class	PFS_instr_name
	Encapsulates the name of an instrumented entity. More...
struct	PFS_instr_class
	Information for all instrumentation. More...
struct	PFS_mutex_class
	Instrumentation metadata for a mutex. More...
struct	PFS_rwlock_class
	Instrumentation metadata for a read write lock. More...
struct	PFS_cond_class
	Instrumentation metadata for a condition. More...
struct	PFS_thread_class
	Instrumentation metadata of a thread. More...
struct	PFS_table_share_key
	Key identifying a table share. More...
struct	PFS_table_key
	Table index or 'key'. More...
struct	PFS_table_share_index
	Index statistics of a table. More...
struct	PFS_table_share_lock
	Lock statistics of a table. More...
struct	PFS_table_share
	Instrumentation metadata for a table share. More...
struct	PFS_error_class
	Instrumentation metadata for an error. More...
struct	PFS_file_class
	Instrumentation metadata for a file. More...
struct	PFS_stage_class
	Instrumentation metadata for a stage. More...
struct	PFS_statement_class
	Instrumentation metadata for a statement. More...
struct	PFS_transaction_class
	Instrumentation metadata for a transaction. More...
struct	PFS_socket_class
	Instrumentation metadata for a socket. More...
struct	PFS_memory_class
	Instrumentation metadata for a memory. More...

Macros
#define	PFS_MAX_INFO_NAME_LENGTH   128
	Maximum length of an instrument name. More...
#define	PFS_MAX_OS_NAME_LENGTH   16
	Maximum length of the thread os name. More...
#define	PFS_MAX_FULL_PREFIX_NAME_LENGTH   32
	Maximum length of the 'full' prefix of an instrument name. More...
#define	PFS_MUTEX_PARTITIONS   2
#define	GLOBAL_TABLE_IO_EVENT_INDEX   0
#define	GLOBAL_TABLE_LOCK_EVENT_INDEX   1
#define	GLOBAL_IDLE_EVENT_INDEX   2
#define	GLOBAL_METADATA_EVENT_INDEX   3
#define	COUNT_GLOBAL_EVENT_INDEX   4
	Number of global wait events. More...
#define	GLOBAL_TRANSACTION_INDEX   0
	Transaction events are not wait events . More...
#define	GLOBAL_ERROR_INDEX   0

Typedefs
typedef unsigned int	PFS_sync_key
	Key, naming a synch instrument (mutex, rwlock, cond). More...
typedef unsigned int	PFS_thread_key
	Key, naming a thread instrument. More...
typedef unsigned int	PFS_file_key
	Key, naming a file instrument. More...
typedef unsigned int	PFS_stage_key
	Key, naming a stage instrument. More...
typedef unsigned int	PFS_statement_key
	Key, naming a statement instrument. More...
typedef unsigned int	PFS_transaction_key
	Key, naming a transaction instrument. More...
typedef unsigned int	PFS_socket_key
	Key, naming a socket instrument. More...
typedef unsigned int	PFS_memory_key
	Key, naming a memory instrument. More...
typedef Prealloced_array< PFS_instr_config *, 10 >	Pfs_instr_config_array

Enumerations
enum	PFS_class_type {   PFS_CLASS_NONE = 0 , PFS_CLASS_MUTEX = 1 , PFS_CLASS_RWLOCK = 2 , PFS_CLASS_COND = 3 ,   PFS_CLASS_FILE = 4 , PFS_CLASS_TABLE = 5 , PFS_CLASS_STAGE = 6 , PFS_CLASS_STATEMENT = 7 ,   PFS_CLASS_TRANSACTION = 8 , PFS_CLASS_SOCKET = 9 , PFS_CLASS_TABLE_IO = 10 , PFS_CLASS_TABLE_LOCK = 11 ,   PFS_CLASS_IDLE = 12 , PFS_CLASS_MEMORY = 13 , PFS_CLASS_METADATA = 14 , PFS_CLASS_ERROR = 15 ,   PFS_CLASS_THREAD = 16 , PFS_CLASS_LAST = PFS_CLASS_THREAD , PFS_CLASS_MAX = PFS_CLASS_LAST + 1 }

Functions
uint	sanitize_index_count (uint count)
void	init_event_name_sizing (const PFS_global_param *param)
void	register_global_classes ()
int	init_sync_class (uint mutex_class_sizing, uint rwlock_class_sizing, uint cond_class_sizing)
	Initialize the instrument synch class buffers. More...
void	cleanup_sync_class ()
	Cleanup the instrument synch class buffers. More...
int	init_thread_class (uint thread_class_sizing)
	Initialize the thread class buffer. More...
void	cleanup_thread_class ()
	Cleanup the thread class buffers. More...
int	init_table_share (uint table_share_sizing)
	Initialize the table share buffer. More...
void	cleanup_table_share ()
	Cleanup the table share buffers. More...
int	init_table_share_lock_stat (uint table_stat_sizing)
	Initialize the table lock stat buffer. More...
void	cleanup_table_share_lock_stat ()
	Cleanup the table stat buffers. More...
PFS_table_share_lock *	create_table_share_lock_stat ()
	Create a table share lock instrumentation. More...
void	release_table_share_lock_stat (PFS_table_share_lock *pfs)
	Release a table share lock instrumentation. More...
int	init_table_share_index_stat (uint index_stat_sizing)
	Initialize table index stat buffer. More...
void	cleanup_table_share_index_stat ()
	Cleanup the table stat buffers. More...
PFS_table_share_index *	create_table_share_index_stat (const TABLE_SHARE *server_share, uint server_index)
	Create a table share index instrumentation. More...
void	release_table_share_index_stat (PFS_table_share_index *pfs)
	Release a table share index instrumentation. More...
int	init_table_share_hash (const PFS_global_param *param)
	Initialize the table share hash table. More...
void	cleanup_table_share_hash ()
	Cleanup the table share hash table. More...
int	init_file_class (uint file_class_sizing)
	Initialize the file class buffer. More...
void	cleanup_file_class ()
	Cleanup the file class buffers. More...
int	init_stage_class (uint stage_class_sizing)
	Initialize the stage class buffer. More...
void	cleanup_stage_class ()
	Cleanup the stage class buffers. More...
int	init_statement_class (uint statement_class_sizing)
	Initialize the statement class buffer. More...
void	cleanup_statement_class ()
	Cleanup the statement class buffers. More...
int	init_socket_class (uint socket_class_sizing)
	Initialize the socket class buffer. More...
void	cleanup_socket_class ()
	Cleanup the socket class buffers. More...
int	init_memory_class (uint memory_class_sizing)
	Initialize the memory class buffer. More...
void	cleanup_memory_class ()
	Cleanup the memory class buffers. More...
PFS_sync_key	register_mutex_class (const char *name, uint name_length, PSI_mutex_info *info)
	Register a mutex instrumentation metadata. More...
PFS_sync_key	register_rwlock_class (const char *name, uint name_length, PSI_rwlock_info *info)
	Register a rwlock instrumentation metadata. More...
PFS_sync_key	register_cond_class (const char *name, uint name_length, PSI_cond_info *info)
	Register a condition instrumentation metadata. More...
PFS_thread_key	register_thread_class (const char *name, uint name_length, PSI_thread_info *info)
	Register a thread instrumentation metadata. More...
PFS_file_key	register_file_class (const char *name, uint name_length, PSI_file_info *info)
	Register a file instrumentation metadata. More...
PFS_stage_key	register_stage_class (const char *name, uint prefix_length, uint name_length, PSI_stage_info *info)
	Register a stage instrumentation metadata. More...
PFS_statement_key	register_statement_class (const char *name, uint name_length, PSI_statement_info *info)
	Register a statement instrumentation metadata. More...
PFS_socket_key	register_socket_class (const char *name, uint name_length, PSI_socket_info *info)
	Register a socket instrumentation metadata. More...
PFS_memory_key	register_memory_class (const char *name, uint name_length, PSI_memory_info *info)
	Register a memory instrumentation metadata. More...
PFS_mutex_class *	find_mutex_class (PFS_sync_key key)
	Find a mutex instrumentation class by key. More...
PFS_mutex_class *	sanitize_mutex_class (PFS_mutex_class *unsafe)
PFS_rwlock_class *	find_rwlock_class (PFS_sync_key key)
	Find a rwlock instrumentation class by key. More...
PFS_rwlock_class *	sanitize_rwlock_class (PFS_rwlock_class *unsafe)
PFS_cond_class *	find_cond_class (PFS_sync_key key)
	Find a condition instrumentation class by key. More...
PFS_cond_class *	sanitize_cond_class (PFS_cond_class *unsafe)
PFS_thread_class *	find_thread_class (PFS_sync_key key)
	Find a thread instrumentation class by key. More...
PFS_thread_class *	sanitize_thread_class (PFS_thread_class *unsafe)
PFS_file_class *	find_file_class (PFS_file_key key)
	Find a file instrumentation class by key. More...
PFS_file_class *	sanitize_file_class (PFS_file_class *unsafe)
PFS_stage_class *	find_stage_class (PFS_stage_key key)
	Find a stage instrumentation class by key. More...
PFS_stage_class *	sanitize_stage_class (PFS_stage_class *unsafe)
PFS_statement_class *	find_statement_class (PFS_stage_key key)
	Find a statement instrumentation class by key. More...
PFS_statement_class *	sanitize_statement_class (PFS_statement_class *unsafe)
PFS_instr_class *	find_table_class (uint index)
PFS_instr_class *	sanitize_table_class (PFS_instr_class *unsafe)
PFS_socket_class *	find_socket_class (PFS_socket_key key)
	Find a socket instrumentation class by key. More...
PFS_socket_class *	sanitize_socket_class (PFS_socket_class *unsafe)
PFS_memory_class *	find_memory_class (PFS_memory_key key)
	Find a memory instrumentation class by key. More...
PFS_memory_class *	sanitize_memory_class (PFS_memory_class *unsafe)
PFS_instr_class *	find_idle_class (uint index)
PFS_instr_class *	sanitize_idle_class (PFS_instr_class *unsafe)
PFS_instr_class *	find_metadata_class (uint index)
PFS_instr_class *	sanitize_metadata_class (PFS_instr_class *unsafe)
PFS_error_class *	find_error_class (uint index)
PFS_error_class *	sanitize_error_class (PFS_instr_class *unsafe)
PFS_transaction_class *	find_transaction_class (uint index)
PFS_transaction_class *	sanitize_transaction_class (PFS_transaction_class *unsafe)
PFS_table_share *	find_or_create_table_share (PFS_thread *thread, bool temporary, const TABLE_SHARE *share)
	Find or create a table share instrumentation. More...
void	release_table_share (PFS_table_share *pfs)
void	drop_table_share (PFS_thread *thread, bool temporary, const char *schema_name, uint schema_name_length, const char *table_name, uint table_name_length)
	Drop the instrumented table share associated with a table. More...
PFS_table_share *	sanitize_table_share (PFS_table_share *unsafe)
	Sanitize an unsafe table_share pointer. More...
void	reset_events_waits_by_class ()
	Reset the wait statistics per instrument class. More...
void	reset_file_class_io ()
	Reset the I/O statistics per file class. More...
void	reset_socket_class_io ()
	Reset the I/O statistics per socket class. More...
void	update_table_share_derived_flags (PFS_thread *thread)
	Update derived flags for all table shares. More...
void	update_program_share_derived_flags (PFS_thread *thread)
	Update derived flags for all stored procedure shares. More...
ulonglong	gtid_monitoring_getsystime ()
	Get current time for GTID monitoring. More...

Variables
bool	pfs_enabled
	Global performance schema flag. More...
std::atomic< uint32 >	pfs_unload_plugin_ref_count
	Global ref count for plugin and component events. More...
Pfs_instr_config_array *	pfs_instr_config_array
	PFS_INSTRUMENT option settings array. More...
uint	mutex_class_start
uint	rwlock_class_start
uint	cond_class_start
uint	file_class_start
uint	socket_class_start
uint	wait_class_max
PFS_single_stat	global_idle_stat
	Statistics for the IDLE instrument. More...
PFS_table_io_stat	global_table_io_stat
	Statistics for dropped table I/O. More...
PFS_table_lock_stat	global_table_lock_stat
	Statistics for dropped table lock. More...
PFS_single_stat	global_metadata_stat
	Statistics for the METADATA instrument. More...
PFS_transaction_stat	global_transaction_stat
	Statistics for the transaction instrument. More...
PFS_error_stat	global_error_stat
	Statistics for the error instrument. More...
PFS_instr_class	global_table_io_class
	Instrument controlling all table I/O. More...
PFS_instr_class	global_table_lock_class
	Instrument controlling all table lock. More...
PFS_instr_class	global_idle_class
	Instrument controlling all idle waits. More...
PFS_instr_class	global_metadata_class
	Instrument controlling all metadata locks. More...
PFS_error_class	global_error_class
	Instrument controlling all server errors. More...
PFS_transaction_class	global_transaction_class
ulong	mutex_class_max
	Size of the mutex class array. More...
ulong	mutex_class_lost
	Number of mutex class lost. More...
ulong	rwlock_class_max
	Size of the rwlock class array. More...
ulong	rwlock_class_lost
	Number of rwlock class lost. More...
ulong	cond_class_max
	Size of the condition class array. More...
ulong	cond_class_lost
	Number of condition class lost. More...
ulong	thread_class_max
	Size of the thread class array. More...
ulong	thread_class_lost
	Number of thread class lost. More...
ulong	file_class_max
	Size of the file class array. More...
ulong	file_class_lost
	Number of file class lost. More...
ulong	stage_class_max
	Size of the stage class array. More...
ulong	stage_class_lost
	Number of stage class lost. More...
ulong	statement_class_max
	Size of the statement class array. More...
ulong	statement_class_lost
	Number of statement class lost. More...
ulong	transaction_class_max
	Number of transaction classes. More...
ulong	socket_class_max
	Size of the socket class array. More...
ulong	socket_class_lost
	Number of socket class lost. More...
ulong	memory_class_max
	Size of the memory class array. More...
ulong	memory_class_lost
	Number of memory class lost. More...
ulong	error_class_max
	Number of error classes. More...
PFS_mutex_class *	mutex_class_array
PFS_rwlock_class *	rwlock_class_array
PFS_cond_class *	cond_class_array
PFS_file_class *	file_class_array
LF_HASH	table_share_hash
	Hash index for instrumented table shares. More...

Detailed Description

Performance schema instruments metadata (declarations).

Macro Definition Documentation

PFS_MAX_FULL_PREFIX_NAME_LENGTH

#define PFS_MAX_FULL_PREFIX_NAME_LENGTH   32

Maximum length of the 'full' prefix of an instrument name.

For example, for the instrument name 'wait/sync/mutex/sql/LOCK_open', the full prefix is 'wait/sync/mutex/sql/', which in turn derives from a prefix 'wait/sync/mutex' for mutexes, and a category of 'sql' for mutexes of the sql layer in the server.

PFS_MAX_INFO_NAME_LENGTH

#define PFS_MAX_INFO_NAME_LENGTH   128

Maximum length of an instrument name.

For example, 'wait/sync/mutex/sql/LOCK_open' is an instrument name.

PFS_MAX_OS_NAME_LENGTH

#define PFS_MAX_OS_NAME_LENGTH   16

Maximum length of the thread os name.

Must include a terminating NUL character. Length is 16 because of linux pthread_setname_np(3)

See also

my_thread_self_setname()