MySQL  8.0.24
Source Code Documentation
binary_log::Previous_gtids_event Class Reference

#include <control_events.h>

Inheritance diagram for binary_log::Previous_gtids_event:
binary_log::Binary_log_event Previous_gtids_log_event

Public Member Functions

 Previous_gtids_event (const char *buf, const Format_description_event *fde)
 Decodes the gtid_executed in the last binlog file. More...
 
 Previous_gtids_event ()
 This is the minimal constructor, and set the type_code as PREVIOUS_GTIDS_LOG_EVENT in the header object in Binary_log_event. More...
 
- Public Member Functions inherited from binary_log::Binary_log_event
virtual ~Binary_log_event ()=0
 
 Binary_log_event (const Binary_log_event &)=default
 
 Binary_log_event (Binary_log_event &&)=default
 
Binary_log_eventoperator= (const Binary_log_event &)=default
 
Binary_log_eventoperator= (Binary_log_event &&)=default
 
enum Log_event_type get_event_type () const
 Helper method. More...
 
const Log_event_headerheader () const
 Return a const pointer to the header of the log event. More...
 
Log_event_headerheader ()
 Return a non-const pointer to the header of the log event. More...
 
const Log_event_footerfooter () const
 Return a const pointer to the footer of the log event. More...
 
Log_event_footerfooter ()
 Return a non-const pointer to the footer of the log event. More...
 
Event_readerreader ()
 Returns a reference to the event Event_reader object. More...
 

Protected Attributes

size_t buf_size
 
const unsigned char * buf
 

Additional Inherited Members

- Public Types inherited from binary_log::Binary_log_event
enum  enum_post_header_length {
  QUERY_HEADER_MINIMAL_LEN = (4 + 4 + 1 + 2) , QUERY_HEADER_LEN = (QUERY_HEADER_MINIMAL_LEN + 2) , STOP_HEADER_LEN = 0 , START_V3_HEADER_LEN = (2 + ST_SERVER_VER_LEN + 4) ,
  ROTATE_HEADER_LEN = 8 , INTVAR_HEADER_LEN = 0 , APPEND_BLOCK_HEADER_LEN = 4 , DELETE_FILE_HEADER_LEN = 4 ,
  RAND_HEADER_LEN = 0 , USER_VAR_HEADER_LEN = 0 , FORMAT_DESCRIPTION_HEADER_LEN = (START_V3_HEADER_LEN + 1 + LOG_EVENT_TYPES) , XID_HEADER_LEN = 0 ,
  BEGIN_LOAD_QUERY_HEADER_LEN = APPEND_BLOCK_HEADER_LEN , ROWS_HEADER_LEN_V1 = 8 , TABLE_MAP_HEADER_LEN = 8 , EXECUTE_LOAD_QUERY_EXTRA_HEADER_LEN = (4 + 4 + 4 + 1) ,
  EXECUTE_LOAD_QUERY_HEADER_LEN , INCIDENT_HEADER_LEN = 2 , HEARTBEAT_HEADER_LEN = 0 , IGNORABLE_HEADER_LEN = 0 ,
  ROWS_HEADER_LEN_V2 = 10 , TRANSACTION_CONTEXT_HEADER_LEN = 18 , VIEW_CHANGE_HEADER_LEN = 52 , XA_PREPARE_HEADER_LEN = 0 ,
  TRANSACTION_PAYLOAD_HEADER_LEN = 0
}
 The lengths for the fixed data part of each event. More...
 
- Static Public Attributes inherited from binary_log::Binary_log_event
static const int LOG_EVENT_TYPES = (ENUM_END_EVENT - 1)
 
- Protected Member Functions inherited from binary_log::Binary_log_event
 Binary_log_event (Log_event_type type_code)
 This constructor is used to initialize the type_code of header object m_header. More...
 
 Binary_log_event (const char **buf, const Format_description_event *fde)
 This constructor will create a new object of Log_event_header and initialize the variable m_header, which in turn will be used to initialize Log_event's member common_header. More...
 

Detailed Description

Binary Format

The Post-Header for this event type is empty. The Body has two components:

Body for Previous_gtids_event
Name Format

Description

buf unsigned char array

It contains the Gtids executed in the last binary log file.

buf_size 4 byte integer Size of the above buffer

Constructor & Destructor Documentation

◆ Previous_gtids_event() [1/2]

binary_log::Previous_gtids_event::Previous_gtids_event ( const char *  buf,
const Format_description_event fde 
)

Decodes the gtid_executed in the last binlog file.

The buffer layout is as follows
+--------------------------------------------+
| Gtids executed in the last binary log file |
+--------------------------------------------+
Parameters
bufContains the serialized event.
fdeAn FDE event (see Rotate_event constructor for more info).

◆ Previous_gtids_event() [2/2]

binary_log::Previous_gtids_event::Previous_gtids_event ( )
inline

This is the minimal constructor, and set the type_code as PREVIOUS_GTIDS_LOG_EVENT in the header object in Binary_log_event.

Member Data Documentation

◆ buf

const unsigned char* binary_log::Previous_gtids_event::buf
protected

◆ buf_size

size_t binary_log::Previous_gtids_event::buf_size
protected

The documentation for this class was generated from the following files: