MySQL 8.0.29
Source Code Documentation
pfs_events_transactions.h
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22
23#ifndef PFS_EVENTS_TRANSACTIONS_H
24#define PFS_EVENTS_TRANSACTIONS_H
25
26/**
27 @file storage/perfschema/pfs_events_transactions.h
28 Events transactions data structures (declarations).
29*/
30
31#include <sys/types.h>
32#include <atomic>
33
34#include "my_inttypes.h"
35#include "sql/rpl_gtid.h"
39
40// Define XIDDATASIZE manually here to avoid pulling in all of mysql/plugin.h
41// (which is big) just for MYSQL_XIDDATASIZE; this file is included from a lot
42// of places. We have a static_assert in the .cc file to check that they are
43// in sync. See sql/xa.h, which does the same thing.
44#define XIDDATASIZE 128
45
46struct PFS_thread;
47struct PFS_account;
48struct PFS_user;
49struct PFS_host;
50
51/**
52 struct PSI_xid is binary compatible with the XID structure as
53 in the X/Open CAE Specification, Distributed Transaction Processing:
54 The XA Specification, X/Open Company Ltd., 1991.
55 http://www.opengroup.org/bookstore/catalog/c193.htm
56
57 A value of -1 in formatID means that the XID is null.
58 Max length for bqual and gtrid is 64 bytes each.
59
60 @see XID in sql/handler.h
61 @see MYSQL_XID in mysql/plugin.h
62*/
63struct PSI_xid {
64 /** Format identifier. */
66 /** GTRID length, value 1-64. */
68 /** BQUAL length, value 1-64. */
70 /** XID raw data, not \0-terminated */
72
73 PSI_xid() { null(); }
74 bool is_null() { return formatID == -1; }
75 void null() {
76 formatID = -1;
77 gtrid_length = 0;
78 bqual_length = 0;
79 }
80};
81typedef struct PSI_xid PSI_xid;
82
83/** A transaction record. */
85 /** Source identifier, mapped from internal format. */
87 /** InnoDB transaction ID. */
89 /** Status */
91 /** Global Transaction ID specifier. */
93 /** True if XA transaction. */
94 bool m_xa;
95 /** XA transaction ID. */
97 /** XA status */
99 /** Transaction isolation level. */
101 /** True if read-only transaction, otherwise read-write. */
103 /** True if autocommit transaction. */
105 /** Total number of savepoints. */
107 /** Number of rollback_to_savepoint. */
109 /** Number of release_savepoint. */
111};
112
113bool xid_printable(PSI_xid *xid, size_t offset, size_t length);
114
116 PFS_events_transactions *transaction);
118 PFS_events_transactions *transaction);
119
123
128
130 uint events_transactions_history_long_sizing);
132
144
145#endif
Some integer typedefs for easier portability.
unsigned long long int ulonglong
Definition: my_inttypes.h:55
char * user
Definition: mysqladmin.cc:59
const char * host
Definition: mysqladmin.cc:58
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:75
Data types for columns used in the performance schema tables (declarations)
enum_isolation_level
Enum values for transaction isolation level columns.
Definition: pfs_column_types.h:323
enum_transaction_state
Enum values for transaction state columns.
Definition: pfs_column_types.h:286
enum_xa_transaction_state
Enum values for XA transaction state columns.
Definition: pfs_column_types.h:303
Events data structures (declarations).
void aggregate_account_transactions(PFS_account *account)
void aggregate_user_transactions(PFS_user *user)
bool xid_printable(PSI_xid *xid, size_t offset, size_t length)
Check if the XID consists of printable characters, ASCII 32 - 127.
Definition: pfs_events_transactions.cc:250
void reset_events_transactions_history_long()
Reset table EVENTS_TRANSACTIONS_HISTORY_LONG data.
Definition: pfs_events_transactions.cc:187
PFS_events_transactions * events_transactions_history_long_array
EVENTS_TRANSACTIONS_HISTORY_LONG circular buffer.
Definition: pfs_events_transactions.cc:63
ulong events_transactions_history_long_size
Definition: pfs_events_transactions.cc:50
void reset_events_transactions_current()
Reset table EVENTS_TRANSACTIONS_CURRENT data.
Definition: pfs_events_transactions.cc:165
void reset_events_transactions_global()
Reset table EVENTS_TRANSACTIONS_GLOBAL_BY_EVENT_NAME data.
Definition: pfs_events_transactions.cc:241
void reset_events_transactions_by_user()
Reset table EVENTS_TRANSACTIONS_SUMMARY_BY_USER_BY_EVENT_NAME data.
Definition: pfs_events_transactions.cc:227
void cleanup_events_transactions_history_long()
Cleanup table EVENTS_TRANSACTIONS_HISTORY_LONG.
Definition: pfs_events_transactions.cc:90
bool events_transactions_history_long_full
True if EVENTS_TRANSACTIONS_HISTORY_LONG circular buffer is full.
Definition: pfs_events_transactions.cc:59
void reset_events_transactions_by_thread()
Reset table EVENTS_TRANSACTIONS_SUMMARY_BY_THREAD_BY_EVENT_NAME data.
Definition: pfs_events_transactions.cc:207
void reset_events_transactions_by_host()
Reset table EVENTS_TRANSACTIONS_SUMMARY_BY_HOST_BY_EVENT_NAME data.
Definition: pfs_events_transactions.cc:236
void aggregate_host_transactions(PFS_host *host)
int init_events_transactions_history_long(uint events_transactions_history_long_sizing)
Initialize table EVENTS_TRANSACTIONS_HISTORY_LONG.
Definition: pfs_events_transactions.cc:70
bool flag_events_transactions_history_long
Consumer flag for table EVENTS_TRANSACTIONS_HISTORY_LONG.
Definition: pfs_events_transactions.cc:56
bool flag_events_transactions_current
Consumer flag for table EVENTS_TRANSACTIONS_CURRENT.
Definition: pfs_events_transactions.cc:52
void reset_events_transactions_by_account()
Reset table EVENTS_TRANSACTIONS_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME data.
Definition: pfs_events_transactions.cc:218
bool flag_events_transactions_history
Consumer flag for table EVENTS_TRANSACTIONS_HISTORY.
Definition: pfs_events_transactions.cc:54
PFS_cacheline_atomic_uint32 events_transactions_history_long_index
Index in EVENTS_TRANSACTIONS_HISTORY_LONG circular buffer.
Definition: pfs_events_transactions.cc:61
void insert_events_transactions_history(PFS_thread *thread, PFS_events_transactions *transaction)
Insert a transaction record in table EVENTS_TRANSACTIONS_HISTORY.
Definition: pfs_events_transactions.cc:108
void reset_events_transactions_history()
Reset table EVENTS_TRANSACTIONS_HISTORY data.
Definition: pfs_events_transactions.cc:182
void insert_events_transactions_history_long(PFS_events_transactions *transaction)
Insert a transaction record in table EVENTS_TRANSACTIONS_HISTORY_LONG.
Definition: pfs_events_transactions.cc:140
#define XIDDATASIZE
Definition: pfs_events_transactions.h:44
Miscellaneous global dependencies (declarations).
This struct represents a specification of a GTID for a statement to be executed: either "AUTOMATIC",...
Definition: rpl_gtid.h:3790
Per account statistics.
Definition: pfs_account.h:66
An atomic uint32 variable, guaranteed to be alone in a CPU cache line.
Definition: pfs_global.h:74
A transaction record.
Definition: pfs_events_transactions.h:84
enum_xa_transaction_state m_xa_state
XA status.
Definition: pfs_events_transactions.h:98
enum_transaction_state m_state
Status.
Definition: pfs_events_transactions.h:90
bool m_autocommit
True if autocommit transaction.
Definition: pfs_events_transactions.h:104
rpl_sid m_sid
Source identifier, mapped from internal format.
Definition: pfs_events_transactions.h:86
bool m_xa
True if XA transaction.
Definition: pfs_events_transactions.h:94
ulonglong m_trxid
InnoDB transaction ID.
Definition: pfs_events_transactions.h:88
ulonglong m_rollback_to_savepoint_count
Number of rollback_to_savepoint.
Definition: pfs_events_transactions.h:108
ulonglong m_release_savepoint_count
Number of release_savepoint.
Definition: pfs_events_transactions.h:110
enum_isolation_level m_isolation_level
Transaction isolation level.
Definition: pfs_events_transactions.h:100
bool m_read_only
True if read-only transaction, otherwise read-write.
Definition: pfs_events_transactions.h:102
PSI_xid m_xid
XA transaction ID.
Definition: pfs_events_transactions.h:96
ulonglong m_savepoint_count
Total number of savepoints.
Definition: pfs_events_transactions.h:106
Gtid_specification m_gtid_spec
Global Transaction ID specifier.
Definition: pfs_events_transactions.h:92
An event record.
Definition: pfs_events.h:37
Per host statistics.
Definition: pfs_host.h:62
Instrumented thread implementation.
Definition: pfs_instr.h:372
Per user statistics.
Definition: pfs_user.h:61
struct PSI_xid is binary compatible with the XID structure as in the X/Open CAE Specification,...
Definition: pfs_events_transactions.h:63
bool is_null()
Definition: pfs_events_transactions.h:74
long bqual_length
BQUAL length, value 1-64.
Definition: pfs_events_transactions.h:69
long formatID
Format identifier.
Definition: pfs_events_transactions.h:65
PSI_xid()
Definition: pfs_events_transactions.h:73
char data[XIDDATASIZE]
XID raw data, not \0-terminated.
Definition: pfs_events_transactions.h:71
long gtrid_length
GTRID length, value 1-64.
Definition: pfs_events_transactions.h:67
This is a POD.
Definition: uuid.h:60
unsigned int uint
Definition: uca-dump.cc:29