pfs_instr_class.cc File Reference

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

#include "storage/perfschema/pfs_instr_class.h"
#include <assert.h>
#include <string.h>
#include <algorithm>
#include <atomic>
#include "lex_string.h"
#include "lf.h"
#include "my_dbug.h"
#include "my_macros.h"
#include "my_sys.h"
#include "my_systime.h"
#include "mysql/psi/mysql_thread.h"
#include "sql/mysqld.h"
#include "sql/table.h"
#include "storage/perfschema/pfs_buffer_container.h"
#include "storage/perfschema/pfs_builtin_memory.h"
#include "storage/perfschema/pfs_column_values.h"
#include "storage/perfschema/pfs_events_waits.h"
#include "storage/perfschema/pfs_global.h"
#include "storage/perfschema/pfs_instr.h"
#include "storage/perfschema/pfs_program.h"
#include "storage/perfschema/pfs_setup_object.h"
#include "storage/perfschema/pfs_timer.h"
#include "storage/perfschema/terminology_use_previous.h"

Classes
class	Proc_table_share_derived_flags
class	Proc_program_share_derived_flags

Macros
#define	REGISTER_CLASS_BODY_PART(INDEX, ARRAY, MAX, NAME, NAME_LENGTH)
#define	FIND_CLASS_BODY(KEY, COUNT, ARRAY)

Functions
std::atomic< uint32 >	pfs_unload_plugin_ref_count (0)
	Global performance schema reference count for plugin and component events. More...
static void	configure_instr_class (PFS_instr_class *entry)
	Set user-defined configuration values for an instrument. More...
static void	init_instr_class (PFS_instr_class *klass, const char *name, uint name_length, int flags, int volatility, const char *documentation, PFS_class_type class_type)
static uint	safe_strlen (const char *s, uint max_len)
	Like strlen (or POSIX strnlen), but don't read past the max_len'th character. More...
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...
static const uchar *	table_share_hash_get_key (const uchar *entry, size_t *length)
	get_key function for table_share_hash. More...
static uint	table_share_hash_func (const LF_HASH *, const uchar *key, size_t key_len)
static int	table_share_hash_cmp_func (const uchar *key1, size_t key_len1, const uchar *key2, size_t key_len2)
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...
static LF_PINS *	get_table_share_hash_pins (PFS_thread *thread)
	Get the hash pins for. More...
static void	set_table_share_key (PFS_table_share_key *key, bool temporary, const char *schema_name, size_t schema_name_length, const char *table_name, size_t table_name_length)
	Set a table share hash key. More...
int	init_table_share_lock_stat (uint table_stat_sizing)
	Initialize the table lock stat buffer. 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...
void	cleanup_table_share_lock_stat ()
	Cleanup the table stat buffers. More...
int	init_table_share_index_stat (uint index_stat_sizing)
	Initialize table index stat buffer. 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...
void	cleanup_table_share_index_stat ()
	Cleanup the table stat buffers. 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_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_key	register_thread_class (const char *name, uint name_length, PSI_thread_info *info)
	Register a thread instrumentation metadata. More...
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_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_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_socket_key	register_socket_class (const char *name, uint name_length, PSI_socket_info *info)
	Register a socket instrumentation metadata. More...
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_key	register_memory_class (const char *name, uint name_length, PSI_memory_info *info)
	Register a memory instrumentation metadata. More...
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_table_class (uint index)
PFS_instr_class *	sanitize_table_class (PFS_instr_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_error_class *unsafe)
PFS_transaction_class *	find_transaction_class (uint index)
PFS_transaction_class *	sanitize_transaction_class (PFS_transaction_class *unsafe)
static int	compare_keys (PFS_table_share *pfs, const TABLE_SHARE *share)
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 = true
	Global performance schema flag. More...
Pfs_instr_config_array *	pfs_instr_config_array = nullptr
	PFS_INSTRUMENT option settings array. More...
static std::atomic< uint32 >	mutex_class_dirty_count {0}
	Current number of elements in mutex_class_array. More...
static std::atomic< uint32 >	mutex_class_allocated_count {0}
static std::atomic< uint32 >	rwlock_class_dirty_count {0}
static std::atomic< uint32 >	rwlock_class_allocated_count {0}
static std::atomic< uint32 >	cond_class_dirty_count {0}
static std::atomic< uint32 >	cond_class_allocated_count {0}
ulong	mutex_class_max = 0
	Size of the mutex class array. More...
ulong	mutex_class_lost = 0
	Number of mutex class lost. More...
ulong	rwlock_class_max = 0
	Size of the rwlock class array. More...
ulong	rwlock_class_lost = 0
	Number of rwlock class lost. More...
ulong	cond_class_max = 0
	Size of the condition class array. More...
ulong	cond_class_lost = 0
	Number of condition class lost. More...
ulong	thread_class_max = 0
	Size of the thread class array. More...
ulong	thread_class_lost = 0
	Number of thread class lost. More...
ulong	file_class_max = 0
	Size of the file class array. More...
ulong	file_class_lost = 0
	Number of file class lost. More...
ulong	stage_class_max = 0
	Size of the stage class array. More...
ulong	stage_class_lost = 0
	Number of stage class lost. More...
ulong	statement_class_max = 0
	Size of the statement class array. More...
ulong	statement_class_lost = 0
	Number of statement class lost. More...
ulong	socket_class_max = 0
	Size of the socket class array. More...
ulong	socket_class_lost = 0
	Number of socket class lost. More...
ulong	memory_class_max = 0
	Size of the memory class array. More...
ulong	memory_class_lost = 0
	Number of memory class lost. More...
ulong	transaction_class_max = 0
	Number of transaction classes. More...
ulong	error_class_max = 0
	Number of error classes. More...
PFS_mutex_class *	mutex_class_array = nullptr
PFS_rwlock_class *	rwlock_class_array = nullptr
PFS_cond_class *	cond_class_array = nullptr
static std::atomic< uint32 >	thread_class_dirty_count {0}
	Current number or elements in thread_class_array. More...
static std::atomic< uint32 >	thread_class_allocated_count {0}
static PFS_thread_class *	thread_class_array = nullptr
PFS_ALIGNED PFS_single_stat	global_idle_stat
	Statistics for the IDLE instrument. More...
PFS_ALIGNED PFS_table_io_stat	global_table_io_stat
	Statistics for dropped table I/O. More...
PFS_ALIGNED PFS_table_lock_stat	global_table_lock_stat
	Statistics for dropped table lock. More...
PFS_ALIGNED PFS_single_stat	global_metadata_stat
	Statistics for the METADATA instrument. More...
PFS_ALIGNED PFS_transaction_stat	global_transaction_stat
	Statistics for the transaction instrument. More...
PFS_ALIGNED PFS_error_stat	global_error_stat
	Statistics for the error instrument. More...
PFS_ALIGNED PFS_instr_class	global_table_io_class
	Instrument controlling all table I/O. More...
PFS_ALIGNED PFS_instr_class	global_table_lock_class
	Instrument controlling all table lock. More...
PFS_ALIGNED PFS_instr_class	global_idle_class
	Instrument controlling all idle waits. More...
PFS_ALIGNED PFS_instr_class	global_metadata_class
	Instrument controlling all metadata locks. More...
PFS_ALIGNED PFS_error_class	global_error_class
	Instrument controlling all server errors. More...
PFS_ALIGNED PFS_transaction_class	global_transaction_class
LF_HASH	table_share_hash
	Hash index for instrumented table shares. More...
static bool	table_share_hash_inited = false
	True if table_share_hash is initialized. More...
static std::atomic< uint32 >	file_class_dirty_count {0}
static std::atomic< uint32 >	file_class_allocated_count {0}
PFS_file_class *	file_class_array = nullptr
static std::atomic< uint32 >	stage_class_dirty_count {0}
static std::atomic< uint32 >	stage_class_allocated_count {0}
static PFS_stage_class *	stage_class_array = nullptr
static std::atomic< uint32 >	statement_class_dirty_count {0}
static std::atomic< uint32 >	statement_class_allocated_count {0}
static PFS_statement_class *	statement_class_array = nullptr
static std::atomic< uint32 >	socket_class_dirty_count {0}
static std::atomic< uint32 >	socket_class_allocated_count {0}
static PFS_socket_class *	socket_class_array = nullptr
static std::atomic< uint32 >	memory_class_dirty_count {0}
static std::atomic< uint32 >	memory_class_allocated_count {0}
static std::atomic< PFS_memory_class * >	memory_class_array {nullptr}
uint	mutex_class_start = 0
uint	rwlock_class_start = 0
uint	cond_class_start = 0
uint	file_class_start = 0
uint	wait_class_max = 0
uint	socket_class_start = 0

Detailed Description

Performance schema instruments metadata (implementation).