211 lines
6.3 KiB
C
211 lines
6.3 KiB
C
#pragma once
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#ifndef _BLR_DEFINES_H
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#define _BLR_DEFINES_H
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/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2020-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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/**
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* @file blr_defines.h - Various definitions for binlogrouter
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* @verbatim
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* Revision History
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*
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* 26/04/16 Massimiliano Pinto Added MariaDB 10.0 and 10.1 GTID event flags detection
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* @endverbatim
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*/
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#include <maxscale/cdefs.h>
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MXS_BEGIN_DECLS
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#define BINLOG_FNAMELEN 255
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#define BLR_PROTOCOL "MySQLBackend"
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#define BINLOG_MAGIC { 0xfe, 0x62, 0x69, 0x6e }
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#define BINLOG_MAGIC_SIZE 4
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#define BINLOG_NAMEFMT "%s.%06d"
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#define BINLOG_NAME_ROOT "mysql-bin"
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#define BINLOG_EVENT_HDR_LEN 19
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/**
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* Binlog event types
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*/
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#define START_EVENT_V3 0x01
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#define QUERY_EVENT 0x02
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#define STOP_EVENT 0x03
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#define ROTATE_EVENT 0x04
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#define INTVAR_EVENT 0x05
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#define LOAD_EVENT 0x06
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#define SLAVE_EVENT 0x07
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#define CREATE_FILE_EVENT 0x08
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#define APPEND_BLOCK_EVENT 0x09
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#define EXEC_LOAD_EVENT 0x0A
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#define DELETE_FILE_EVENT 0x0B
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#define NEW_LOAD_EVENT 0x0C
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#define RAND_EVENT 0x0D
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#define USER_VAR_EVENT 0x0E
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#define FORMAT_DESCRIPTION_EVENT 0x0F
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#define XID_EVENT 0x10
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#define BEGIN_LOAD_QUERY_EVENT 0x11
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#define EXECUTE_LOAD_QUERY_EVENT 0x12
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#define TABLE_MAP_EVENT 0x13
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#define WRITE_ROWS_EVENTv0 0x14
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#define UPDATE_ROWS_EVENTv0 0x15
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#define DELETE_ROWS_EVENTv0 0x16
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#define WRITE_ROWS_EVENTv1 0x17
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#define UPDATE_ROWS_EVENTv1 0x18
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#define DELETE_ROWS_EVENTv1 0x19
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#define INCIDENT_EVENT 0x1A
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#define HEARTBEAT_EVENT 0x1B
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#define IGNORABLE_EVENT 0x1C
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#define ROWS_QUERY_EVENT 0x1D
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#define WRITE_ROWS_EVENTv2 0x1E
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#define UPDATE_ROWS_EVENTv2 0x1F
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#define DELETE_ROWS_EVENTv2 0x20
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#define GTID_EVENT 0x21
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#define ANONYMOUS_GTID_EVENT 0x22
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#define PREVIOUS_GTIDS_EVENT 0x23
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#define MAX_EVENT_TYPE 0x23
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/* New MariaDB event numbers start from 0xa0 */
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#define MARIADB_NEW_EVENTS_BEGIN 0xa0
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#define MARIADB_ANNOTATE_ROWS_EVENT 0xa0
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/* New MariaDB 10 event numbers start from here */
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#define MARIADB10_BINLOG_CHECKPOINT_EVENT 0xa1
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#define MARIADB10_GTID_EVENT 0xa2
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#define MARIADB10_GTID_GTID_LIST_EVENT 0xa3
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#define MAX_EVENT_TYPE_MARIADB10 0xa3
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/* Maximum event type so far */
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#define MAX_EVENT_TYPE_END MAX_EVENT_TYPE_MARIADB10
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/**
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* Binlog event flags
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*/
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#define LOG_EVENT_BINLOG_IN_USE_F 0x0001
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#define LOG_EVENT_FORCED_ROTATE_F 0x0002
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#define LOG_EVENT_THREAD_SPECIFIC_F 0x0004
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#define LOG_EVENT_SUPPRESS_USE_F 0x0008
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#define LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F 0x0010
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#define LOG_EVENT_ARTIFICIAL_F 0x0020
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#define LOG_EVENT_RELAY_LOG_F 0x0040
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#define LOG_EVENT_IGNORABLE_F 0x0080
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#define LOG_EVENT_NO_FILTER_F 0x0100
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#define LOG_EVENT_MTS_ISOLATE_F 0x0200
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/**
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* How often to call the binlog status function (seconds)
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*/
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#define BLR_STATS_FREQ 60
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#define BLR_NSTATS_MINUTES 30
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/**
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* High and Low water marks for the slave dcb. These values can be overriden
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* by the router options highwater and lowwater.
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*/
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#define DEF_LOW_WATER 1000
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#define DEF_HIGH_WATER 10000
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/**
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* Default burst sizes for slave catchup
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*/
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#define DEF_SHORT_BURST 15
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#define DEF_LONG_BURST 500
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#define DEF_BURST_SIZE 1024000 /* 1 Mb */
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/**
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* master reconnect backoff constants
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* BLR_MASTER_BACKOFF_TIME The increments of the back off time (seconds)
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* BLR_MAX_BACKOFF Maximum number of increments to backoff to
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*/
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#define BLR_MASTER_BACKOFF_TIME 10
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#define BLR_MAX_BACKOFF 60
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/* max size for error message returned to client */
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#define BINLOG_ERROR_MSG_LEN 385
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/* network latency extra wait tme for heartbeat check */
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#define BLR_NET_LATENCY_WAIT_TIME 1
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/* default heartbeat interval in seconds */
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#define BLR_HEARTBEAT_DEFAULT_INTERVAL 300
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/* strings and numbers in SQL replies */
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#define BLR_TYPE_STRING 0xf
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#define BLR_TYPE_INT 0x03
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/* string len for COM_STATISTICS output */
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#define BLRM_COM_STATISTICS_SIZE 1000
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/* string len for strerror_r message */
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#define BLRM_STRERROR_R_MSG_SIZE 128
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/* string len for task message name */
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#define BLRM_TASK_NAME_LEN 80
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/* string len for temp binlog filename */
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#define BLRM_BINLOG_NAME_STR_LEN 80
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/* string len for temp binlog filename */
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#define BLRM_SET_HEARTBEAT_QUERY_LEN 80
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/* string len for master registration query */
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#define BLRM_MASTER_REGITRATION_QUERY_LEN 255
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/* Read Binlog position states */
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#define SLAVE_POS_READ_OK 0x00
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#define SLAVE_POS_READ_ERR 0xff
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#define SLAVE_POS_READ_UNSAFE 0xfe
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#define SLAVE_POS_BAD_FD 0xfd
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#define SLAVE_POS_BEYOND_EOF 0xfc
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/* MariadDB 10 GTID event flags */
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#define MARIADB_FL_DDL 32
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#define MARIADB_FL_STANDALONE 1
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/**
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* Some useful macros for examining the MySQL Response packets
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*/
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#define MYSQL_RESPONSE_OK(buf) (*((uint8_t *)GWBUF_DATA(buf) + 4) == 0x00)
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#define MYSQL_RESPONSE_EOF(buf) (*((uint8_t *)GWBUF_DATA(buf) + 4) == 0xfe)
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#define MYSQL_RESPONSE_ERR(buf) (*((uint8_t *)GWBUF_DATA(buf) + 4) == 0xff)
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#define MYSQL_ERROR_CODE(buf) ((uint8_t *)GWBUF_DATA(buf) + 5)
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#define MYSQL_ERROR_MSG(buf) ((uint8_t *)GWBUF_DATA(buf) + 7)
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#define MYSQL_COMMAND(buf) (*((uint8_t *)GWBUF_DATA(buf) + 4))
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/**
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* Macros to extract common fields
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*/
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#define INLINE_EXTRACT 1 /* Set to 0 for debug purposes */
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#if INLINE_EXTRACT
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#define EXTRACT16(x) (*(uint8_t *)(x) | (*((uint8_t *)(x) + 1) << 8))
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#define EXTRACT24(x) (*(uint8_t *)(x) | \
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(*((uint8_t *)(x) + 1) << 8) | \
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(*((uint8_t *)(x) + 2) << 16))
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#define EXTRACT32(x) (*(uint8_t *)(x) | \
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(*((uint8_t *)(x) + 1) << 8) | \
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(*((uint8_t *)(x) + 2) << 16) | \
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(*((uint8_t *)(x) + 3) << 24))
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#else
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#define EXTRACT16(x) extract_field((x), 16)
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#define EXTRACT24(x) extract_field((x), 24)
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#define EXTRACT32(x) extract_field((x), 32)
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#endif
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MXS_END_DECLS
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#endif
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