pfs_digest.h File Reference

Statement Digest data structures (declarations). More...

#include <sys/types.h>
#include <atomic>
#include "lf.h"
#include "my_inttypes.h"
#include "mysql_com.h"
#include "sql/sql_digest.h"
#include "storage/perfschema/pfs_column_types.h"
#include "storage/perfschema/pfs_histogram.h"
#include "storage/perfschema/pfs_lock.h"
#include "storage/perfschema/pfs_name.h"
#include "storage/perfschema/pfs_stat.h"

Go to the source code of this file.

Classes
struct	PFS_digest_key
	Structure to store a hash value (digest) for a statement. More...
struct	PFS_statements_digest_stat
	A statement digest stat record. More...

Functions
int	init_digest (const PFS_global_param *param)
	Initialize table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST. More...
void	cleanup_digest ()
	Cleanup table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST. More...
int	init_digest_hash (const PFS_global_param *param)
	Initialize the digest hash. More...
void	cleanup_digest_hash ()
PFS_statements_digest_stat *	find_or_create_digest (PFS_thread *thread, const sql_digest_storage *digest_storage, const char *schema_name, uint schema_name_length)
void	reset_esms_by_digest ()
void	reset_histogram_by_digest ()

Variables
bool	flag_statements_digest
	Consumer flag for table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST. More...
size_t	digest_max
ulong	digest_lost
PFS_statements_digest_stat *	statements_digest_stat_array
	EVENTS_STATEMENTS_SUMMARY_BY_DIGEST buffer. More...
LF_HASH	digest_hash

Detailed Description

Statement Digest data structures (declarations).

Function Documentation

cleanup_digest()

void cleanup_digest

(

)

Cleanup table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST.

cleanup_digest_hash()

void cleanup_digest_hash

(

)

find_or_create_digest()

PFS_statements_digest_stat * find_or_create_digest	(	PFS_thread *	thread,
		const sql_digest_storage *	digest_storage,
		const char *	schema_name,
		uint	schema_name_length
	)

init_digest()

int init_digest

(

const PFS_global_param *

param

)

Initialize table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST.

Parameters

param

performance schema sizing

init_digest_hash()

int init_digest_hash

(

const PFS_global_param *

param

)

Initialize the digest hash.

Returns

0 on success

reset_esms_by_digest()

void reset_esms_by_digest

(

)

reset_histogram_by_digest()

void reset_histogram_by_digest

(

)

Variable Documentation

digest_hash

LF_HASH digest_hash

extern

digest_lost

ulong digest_lost

extern

digest_max

size_t digest_max

extern

flag_statements_digest

bool flag_statements_digest

extern

Consumer flag for table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST.

statements_digest_stat_array

PFS_statements_digest_stat* statements_digest_stat_array

extern

EVENTS_STATEMENTS_SUMMARY_BY_DIGEST buffer.