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237 lines
6.5 KiB
Go
237 lines
6.5 KiB
Go
2 years ago
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package replication
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const (
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//we only support MySQL 5.0.0+ binlog format, maybe???
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MinBinlogVersion = 4
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)
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var (
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//binlog header [ fe `bin` ]
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BinLogFileHeader = []byte{0xfe, 0x62, 0x69, 0x6e}
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SemiSyncIndicator byte = 0xef
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)
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const (
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LOG_EVENT_BINLOG_IN_USE_F uint16 = 0x0001
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LOG_EVENT_FORCED_ROTATE_F uint16 = 0x0002
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LOG_EVENT_THREAD_SPECIFIC_F uint16 = 0x0004
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LOG_EVENT_SUPPRESS_USE_F uint16 = 0x0008
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LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F uint16 = 0x0010
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LOG_EVENT_ARTIFICIAL_F uint16 = 0x0020
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LOG_EVENT_RELAY_LOG_F uint16 = 0x0040
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LOG_EVENT_IGNORABLE_F uint16 = 0x0080
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LOG_EVENT_NO_FILTER_F uint16 = 0x0100
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LOG_EVENT_MTS_ISOLATE_F uint16 = 0x0200
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)
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const (
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BINLOG_DUMP_NEVER_STOP uint16 = 0x00
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BINLOG_DUMP_NON_BLOCK uint16 = 0x01
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BINLOG_SEND_ANNOTATE_ROWS_EVENT uint16 = 0x02
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BINLOG_THROUGH_POSITION uint16 = 0x02
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BINLOG_THROUGH_GTID uint16 = 0x04
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)
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const (
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BINLOG_ROW_IMAGE_FULL = "FULL"
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BINLOG_ROW_IAMGE_MINIMAL = "MINIMAL"
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BINLOG_ROW_IMAGE_NOBLOB = "NOBLOB"
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)
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const (
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BINLOG_MARIADB_FL_STANDALONE = 1 << iota /*1 - FL_STANDALONE is set when there is no terminating COMMIT event*/
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BINLOG_MARIADB_FL_GROUP_COMMIT_ID /*2 - FL_GROUP_COMMIT_ID is set when event group is part of a group commit on the master. Groups with same commit_id are part of the same group commit.*/
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BINLOG_MARIADB_FL_TRANSACTIONAL /*4 - FL_TRANSACTIONAL is set for an event group that can be safely rolled back (no MyISAM, eg.).*/
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BINLOG_MARIADB_FL_ALLOW_PARALLEL /*8 - FL_ALLOW_PARALLEL reflects the (negation of the) value of @@SESSION.skip_parallel_replication at the time of commit*/
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BINLOG_MARIADB_FL_WAITED /*16 = FL_WAITED is set if a row lock wait (or other wait) is detected during the execution of the transaction*/
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BINLOG_MARIADB_FL_DDL /*32 - FL_DDL is set for event group containing DDL*/
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)
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type EventType byte
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const (
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UNKNOWN_EVENT EventType = iota
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START_EVENT_V3
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QUERY_EVENT
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STOP_EVENT
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ROTATE_EVENT
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INTVAR_EVENT
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LOAD_EVENT
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SLAVE_EVENT
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CREATE_FILE_EVENT
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APPEND_BLOCK_EVENT
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EXEC_LOAD_EVENT
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DELETE_FILE_EVENT
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NEW_LOAD_EVENT
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RAND_EVENT
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USER_VAR_EVENT
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FORMAT_DESCRIPTION_EVENT
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XID_EVENT
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BEGIN_LOAD_QUERY_EVENT
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EXECUTE_LOAD_QUERY_EVENT
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TABLE_MAP_EVENT
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WRITE_ROWS_EVENTv0
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UPDATE_ROWS_EVENTv0
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DELETE_ROWS_EVENTv0
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WRITE_ROWS_EVENTv1
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UPDATE_ROWS_EVENTv1
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DELETE_ROWS_EVENTv1
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INCIDENT_EVENT
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HEARTBEAT_EVENT
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IGNORABLE_EVENT
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ROWS_QUERY_EVENT
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WRITE_ROWS_EVENTv2
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UPDATE_ROWS_EVENTv2
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DELETE_ROWS_EVENTv2
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GTID_EVENT
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ANONYMOUS_GTID_EVENT
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PREVIOUS_GTIDS_EVENT
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TRANSACTION_CONTEXT_EVENT
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VIEW_CHANGE_EVENT
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XA_PREPARE_LOG_EVENT
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PARTIAL_UPDATE_ROWS_EVENT
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TRANSACTION_PAYLOAD_EVENT
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HEARTBEAT_LOG_EVENT_V2
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)
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const (
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// MariaDB event starts from 160
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MARIADB_ANNOTATE_ROWS_EVENT EventType = 160 + iota
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MARIADB_BINLOG_CHECKPOINT_EVENT
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MARIADB_GTID_EVENT
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MARIADB_GTID_LIST_EVENT
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)
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func (e EventType) String() string {
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switch e {
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case UNKNOWN_EVENT:
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return "UnknownEvent"
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case START_EVENT_V3:
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return "StartEventV3"
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case QUERY_EVENT:
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return "QueryEvent"
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case STOP_EVENT:
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return "StopEvent"
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case ROTATE_EVENT:
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return "RotateEvent"
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case INTVAR_EVENT:
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return "IntVarEvent"
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case LOAD_EVENT:
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return "LoadEvent"
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case SLAVE_EVENT:
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return "SlaveEvent"
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case CREATE_FILE_EVENT:
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return "CreateFileEvent"
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case APPEND_BLOCK_EVENT:
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return "AppendBlockEvent"
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case EXEC_LOAD_EVENT:
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return "ExecLoadEvent"
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case DELETE_FILE_EVENT:
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return "DeleteFileEvent"
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case NEW_LOAD_EVENT:
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return "NewLoadEvent"
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case RAND_EVENT:
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return "RandEvent"
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case USER_VAR_EVENT:
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return "UserVarEvent"
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case FORMAT_DESCRIPTION_EVENT:
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return "FormatDescriptionEvent"
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case XID_EVENT:
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return "XIDEvent"
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case BEGIN_LOAD_QUERY_EVENT:
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return "BeginLoadQueryEvent"
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case EXECUTE_LOAD_QUERY_EVENT:
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return "ExectueLoadQueryEvent"
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case TABLE_MAP_EVENT:
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return "TableMapEvent"
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case WRITE_ROWS_EVENTv0:
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return "WriteRowsEventV0"
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case UPDATE_ROWS_EVENTv0:
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return "UpdateRowsEventV0"
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case DELETE_ROWS_EVENTv0:
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return "DeleteRowsEventV0"
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case WRITE_ROWS_EVENTv1:
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return "WriteRowsEventV1"
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case UPDATE_ROWS_EVENTv1:
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return "UpdateRowsEventV1"
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case DELETE_ROWS_EVENTv1:
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return "DeleteRowsEventV1"
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case INCIDENT_EVENT:
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return "IncidentEvent"
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case HEARTBEAT_EVENT:
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return "HeartbeatEvent"
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case IGNORABLE_EVENT:
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return "IgnorableEvent"
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case ROWS_QUERY_EVENT:
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return "RowsQueryEvent"
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case WRITE_ROWS_EVENTv2:
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return "WriteRowsEventV2"
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case UPDATE_ROWS_EVENTv2:
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return "UpdateRowsEventV2"
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case DELETE_ROWS_EVENTv2:
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return "DeleteRowsEventV2"
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case GTID_EVENT:
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return "GTIDEvent"
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case ANONYMOUS_GTID_EVENT:
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return "AnonymousGTIDEvent"
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case PREVIOUS_GTIDS_EVENT:
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return "PreviousGTIDsEvent"
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case MARIADB_ANNOTATE_ROWS_EVENT:
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return "MariadbAnnotateRowsEvent"
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case MARIADB_BINLOG_CHECKPOINT_EVENT:
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return "MariadbBinLogCheckPointEvent"
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case MARIADB_GTID_EVENT:
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return "MariadbGTIDEvent"
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case MARIADB_GTID_LIST_EVENT:
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return "MariadbGTIDListEvent"
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case TRANSACTION_CONTEXT_EVENT:
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return "TransactionContextEvent"
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case VIEW_CHANGE_EVENT:
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return "ViewChangeEvent"
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case XA_PREPARE_LOG_EVENT:
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return "XAPrepareLogEvent"
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case PARTIAL_UPDATE_ROWS_EVENT:
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return "PartialUpdateRowsEvent"
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case TRANSACTION_PAYLOAD_EVENT:
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return "TransactionPayloadEvent"
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case HEARTBEAT_LOG_EVENT_V2:
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return "HeartbeatLogEventV2"
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default:
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return "UnknownEvent"
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}
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}
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const (
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BINLOG_CHECKSUM_ALG_OFF byte = 0 // Events are without checksum though its generator
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// is checksum-capable New Master (NM).
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BINLOG_CHECKSUM_ALG_CRC32 byte = 1 // CRC32 of zlib algorithm.
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// BINLOG_CHECKSUM_ALG_ENUM_END, // the cut line: valid alg range is [1, 0x7f].
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BINLOG_CHECKSUM_ALG_UNDEF byte = 255 // special value to tag undetermined yet checksum
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// or events from checksum-unaware servers
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)
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// These are TABLE_MAP_EVENT's optional metadata field type, from: libbinlogevents/include/rows_event.h
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const (
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TABLE_MAP_OPT_META_SIGNEDNESS byte = iota + 1
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TABLE_MAP_OPT_META_DEFAULT_CHARSET
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TABLE_MAP_OPT_META_COLUMN_CHARSET
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TABLE_MAP_OPT_META_COLUMN_NAME
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TABLE_MAP_OPT_META_SET_STR_VALUE
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TABLE_MAP_OPT_META_ENUM_STR_VALUE
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TABLE_MAP_OPT_META_GEOMETRY_TYPE
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TABLE_MAP_OPT_META_SIMPLE_PRIMARY_KEY
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TABLE_MAP_OPT_META_PRIMARY_KEY_WITH_PREFIX
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TABLE_MAP_OPT_META_ENUM_AND_SET_DEFAULT_CHARSET
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TABLE_MAP_OPT_META_ENUM_AND_SET_COLUMN_CHARSET
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)
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type IntVarEventType byte
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const (
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INVALID IntVarEventType = iota
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LAST_INSERT_ID
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INSERT_ID
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)
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