Metadata Lock Instrumentation (ABI)

Collaboration diagram for Metadata Lock Instrumentation (ABI):

Classes
struct	PSI_metadata_locker_state_v1
	State data storage for start_metadata_wait_v1_t. More...
struct	PSI_mdl_bootstrap
	Entry point for the performance schema interface. More...
struct	PSI_mdl_service_v1
	Performance Schema Metadata Lock Interface, version 1. More...
struct	PSI_mdl_service_v2
	Performance Schema Metadata Lock Interface, version 2. More...

Macros
#define	PSI_MDL_VERSION_1   1
	Performance Schema Metadata Lock Interface number for version 1. More...
#define	PSI_MDL_VERSION_2   2
	Performance Schema Metadata Lock Interface number for version 2. More...
#define	PSI_CURRENT_MDL_VERSION   2
	Performance Schema Metadata Lock Interface number for the most recent version. More...

Typedefs
typedef int	opaque_mdl_type
typedef int	opaque_mdl_duration
typedef int	opaque_mdl_status
typedef struct PSI_metadata_lock	PSI_metadata_lock
typedef struct PSI_metadata_locker	PSI_metadata_locker
typedef struct PSI_metadata_locker_state_v1	PSI_metadata_locker_state_v1
typedef PSI_metadata_lock *(*	create_metadata_lock_v1_t) (void *identity, const struct MDL_key *key, opaque_mdl_type mdl_type, opaque_mdl_duration mdl_duration, opaque_mdl_status mdl_status, const char *src_file, unsigned int src_line)
typedef void(*	set_metadata_lock_status_v1_t) (PSI_metadata_lock *lock, opaque_mdl_status mdl_status)
typedef void(*	set_metadata_lock_duration_v2_t) (PSI_metadata_lock *lock, opaque_mdl_duration mdl_duration)
typedef void(*	destroy_metadata_lock_v1_t) (PSI_metadata_lock *lock)
typedef struct PSI_metadata_locker *(*	start_metadata_wait_v1_t) (struct PSI_metadata_locker_state_v1 *state, struct PSI_metadata_lock *mdl, const char *src_file, unsigned int src_line)
typedef void(*	end_metadata_wait_v1_t) (struct PSI_metadata_locker *locker, int rc)
typedef struct PSI_metadata_locker_state_v1	PSI_metadata_locker_state
typedef struct PSI_mdl_bootstrap	PSI_mdl_bootstrap
typedef struct PSI_mdl_service_v2	PSI_mdl_service_t

Variables
MYSQL_PLUGIN_IMPORT PSI_mdl_service_t *	psi_mdl_service

Detailed Description

Macro Definition Documentation

PSI_CURRENT_MDL_VERSION

#define PSI_CURRENT_MDL_VERSION   2

Performance Schema Metadata Lock Interface number for the most recent version.

The most current version is PSI_MDL_VERSION_2

PSI_MDL_VERSION_1

#define PSI_MDL_VERSION_1   1

Performance Schema Metadata Lock Interface number for version 1.

Deprecated in MySQL 8.0.24

PSI_MDL_VERSION_2

#define PSI_MDL_VERSION_2   2

Performance Schema Metadata Lock Interface number for version 2.

Introduced in MySQL 8.0.24 This version is supported.

Typedef Documentation

create_metadata_lock_v1_t

typedef PSI_metadata_lock *(* create_metadata_lock_v1_t) (void *identity, const struct MDL_key *key, opaque_mdl_type mdl_type, opaque_mdl_duration mdl_duration, opaque_mdl_status mdl_status, const char *src_file, unsigned int src_line)

destroy_metadata_lock_v1_t

typedef void(* destroy_metadata_lock_v1_t) (PSI_metadata_lock *lock)

end_metadata_wait_v1_t

typedef void(* end_metadata_wait_v1_t) (struct PSI_metadata_locker *locker, int rc)

opaque_mdl_duration

typedef int opaque_mdl_duration

See also

enum_mdl_duration.

opaque_mdl_status

typedef int opaque_mdl_status

See also

MDL_wait::enum_wait_status.

opaque_mdl_type

typedef int opaque_mdl_type

See also

enum_mdl_type.

PSI_mdl_bootstrap

typedef struct PSI_mdl_bootstrap PSI_mdl_bootstrap

PSI_mdl_service_t

typedef struct PSI_mdl_service_v2 PSI_mdl_service_t

PSI_metadata_lock

typedef struct PSI_metadata_lock PSI_metadata_lock

PSI_metadata_locker

typedef struct PSI_metadata_locker PSI_metadata_locker

PSI_metadata_locker_state

typedef struct PSI_metadata_locker_state_v1 PSI_metadata_locker_state

PSI_metadata_locker_state_v1

typedef struct PSI_metadata_locker_state_v1 PSI_metadata_locker_state_v1

set_metadata_lock_duration_v2_t

typedef void(* set_metadata_lock_duration_v2_t) (PSI_metadata_lock *lock, opaque_mdl_duration mdl_duration)

set_metadata_lock_status_v1_t

typedef void(* set_metadata_lock_status_v1_t) (PSI_metadata_lock *lock, opaque_mdl_status mdl_status)

start_metadata_wait_v1_t

typedef struct PSI_metadata_locker *(* start_metadata_wait_v1_t) (struct PSI_metadata_locker_state_v1 *state, struct PSI_metadata_lock *mdl, const char *src_file, unsigned int src_line)

Variable Documentation

psi_mdl_service

MYSQL_PLUGIN_IMPORT PSI_mdl_service_t* psi_mdl_service

extern