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mariadb_rpl.h
/* Copyright (C) 2018-2022 MariaDB Corporation AB This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301, USA */ #ifndef _mariadb_rpl_h_ #define _mariadb_rpl_h_ #ifdef __cplusplus extern "C" { #endif #include <stdint.h> #include <mariadb/ma_io.h> #define MARIADB_RPL_VERSION 0x0002 #define MARIADB_RPL_REQUIRED_VERSION 0x0002 #define RPL_BINLOG_MAGIC (const uchar*) "\xFE\x62\x69\x6E" #define RPL_BINLOG_MAGIC_SIZE 4 /* Protocol flags */ #define MARIADB_RPL_BINLOG_DUMP_NON_BLOCK 1 #define MARIADB_RPL_BINLOG_SEND_ANNOTATE_ROWS 2 #define MARIADB_RPL_IGNORE_HEARTBEAT (1 << 17) #define EVENT_HEADER_OFS 20 #define FL_STMT_END 1 /* GTID flags */ /* FL_STANDALONE is set in case there is no terminating COMMIT event. */ #define FL_STANDALONE 0x01 /* FL_GROUP_COMMIT_ID is set when event group is part of a group commit */ #define FL_GROUP_COMMIT_ID 0x02 /* FL_TRANSACTIONAL is set for an event group that can be safely rolled back (no MyISAM, eg.). */ #define FL_TRANSACTIONAL 0x04 /* FL_ALLOW_PARALLEL reflects the (negation of the) value of @@SESSION.skip_parallel_replication at the time of commit. */ #define FL_ALLOW_PARALLEL 0x08; /* FL_WAITED is set if a row lock wait (or other wait) is detected during the execution of the transaction. */ #define FL_WAITED 0x10 /* FL_DDL is set for event group containing DDL. */ #define FL_DDL 0x20 /* FL_PREPARED_XA is set for XA transaction. */ #define FL_PREPARED_XA 0x40 /* FL_"COMMITTED or ROLLED-BACK"_XA is set for XA transaction. */ #define FL_COMPLETED_XA 0x80 /* SEMI SYNCHRONOUS REPLICATION */ #define SEMI_SYNC_INDICATOR 0xEF #define SEMI_SYNC_ACK_REQ 0x01 /* Options */ enum mariadb_rpl_option { MARIADB_RPL_FILENAME, /* Filename and length */ MARIADB_RPL_START, /* Start position */ MARIADB_RPL_SERVER_ID, /* Server ID */ MARIADB_RPL_FLAGS, /* Protocol flags */ MARIADB_RPL_GTID_CALLBACK, /* GTID callback function */ MARIADB_RPL_GTID_DATA, /* GTID data */ MARIADB_RPL_BUFFER, MARIADB_RPL_VERIFY_CHECKSUM, MARIADB_RPL_UNCOMPRESS, MARIADB_RPL_HOST, MARIADB_RPL_PORT, MARIADB_RPL_EXTRACT_VALUES, MARIADB_RPL_SEMI_SYNC, }; /* Event types: From MariaDB Server sql/log_event.h */ enum mariadb_rpl_event { UNKNOWN_EVENT= 0, START_EVENT_V3= 1, QUERY_EVENT= 2, STOP_EVENT= 3, ROTATE_EVENT= 4, INTVAR_EVENT= 5, LOAD_EVENT= 6, SLAVE_EVENT= 7, CREATE_FILE_EVENT= 8, APPEND_BLOCK_EVENT= 9, EXEC_LOAD_EVENT= 10, DELETE_FILE_EVENT= 11, NEW_LOAD_EVENT= 12, RAND_EVENT= 13, USER_VAR_EVENT= 14, FORMAT_DESCRIPTION_EVENT= 15, XID_EVENT= 16, BEGIN_LOAD_QUERY_EVENT= 17, EXECUTE_LOAD_QUERY_EVENT= 18, TABLE_MAP_EVENT = 19, PRE_GA_WRITE_ROWS_EVENT = 20, /* deprecated */ PRE_GA_UPDATE_ROWS_EVENT = 21, /* deprecated */ PRE_GA_DELETE_ROWS_EVENT = 22, /* deprecated */ WRITE_ROWS_EVENT_V1 = 23, UPDATE_ROWS_EVENT_V1 = 24, DELETE_ROWS_EVENT_V1 = 25, INCIDENT_EVENT= 26, HEARTBEAT_LOG_EVENT= 27, IGNORABLE_LOG_EVENT= 28, ROWS_QUERY_LOG_EVENT= 29, WRITE_ROWS_EVENT = 30, UPDATE_ROWS_EVENT = 31, DELETE_ROWS_EVENT = 32, GTID_LOG_EVENT= 33, ANONYMOUS_GTID_LOG_EVENT= 34, PREVIOUS_GTIDS_LOG_EVENT= 35, TRANSACTION_CONTEXT_EVENT= 36, VIEW_CHANGE_EVENT= 37, XA_PREPARE_LOG_EVENT= 38, PARTIAL_UPDATE_ROWS_EVENT = 39, /* Add new events here - right above this comment! Existing events (except ENUM_END_EVENT) should never change their numbers */ /* New MySQL events are to be added right above this comment */ MYSQL_EVENTS_END, MARIA_EVENTS_BEGIN= 160, ANNOTATE_ROWS_EVENT= 160, BINLOG_CHECKPOINT_EVENT= 161, GTID_EVENT= 162, GTID_LIST_EVENT= 163, START_ENCRYPTION_EVENT= 164, QUERY_COMPRESSED_EVENT = 165, WRITE_ROWS_COMPRESSED_EVENT_V1 = 166, UPDATE_ROWS_COMPRESSED_EVENT_V1 = 167, DELETE_ROWS_COMPRESSED_EVENT_V1 = 168, WRITE_ROWS_COMPRESSED_EVENT = 169, UPDATE_ROWS_COMPRESSED_EVENT = 170, DELETE_ROWS_COMPRESSED_EVENT = 171, /* Add new MariaDB events here - right above this comment! */ ENUM_END_EVENT /* end marker */ }; /* ROWS_EVENT flags */ #define STMT_END_F 0x01 #define NO_FOREIGN_KEY_CHECKS_F 0x02 #define RELAXED_UNIQUE_KEY_CHECKS_F 0x04 #define COMPLETE_ROWS_F 0x08 #define NO_CHECK_CONSTRAINT_CHECKS_F 0x80 enum mariadb_rpl_status_code { Q_FLAGS2_CODE= 0x00, Q_SQL_MODE_CODE= 0x01, Q_CATALOG_CODE= 0x02, Q_AUTO_INCREMENT_CODE= 0x03, Q_CHARSET_CODE= 0x04, Q_TIMEZONE_CODE= 0x05, Q_CATALOG_NZ_CODE= 0x06, Q_LC_TIME_NAMES_CODE= 0x07, Q_CHARSET_DATABASE_CODE= 0x08, Q_TABLE_MAP_FOR_UPDATE_CODE= 0x09, Q_MASTER_DATA_WRITTEN_CODE= 0x0A, Q_INVOKERS_CODE= 0x0B, Q_UPDATED_DB_NAMES_CODE= 0x0C, Q_MICROSECONDS_CODE= 0x0D, Q_COMMIT_TS_CODE= 0x0E, /* unused */ Q_COMMIT_TS2_CODE= 0x0F, /* unused */ Q_EXPLICIT_DEFAULTS_FOR_TIMESTAMP_CODE= 0x10, Q_DDL_LOGGED_WITH_XID_CODE= 0x11, Q_DEFAULT_COLLATION_FOR_UTF8_CODE= 0x12, Q_SQL_REQUIRE_PRIMARY_KEY_CODE= 0x13, Q_DEFAULT_TABLE_ENCRYPTION_CODE= 0x14, Q_HRNOW= 128, /* second part: 3 bytes */ Q_XID= 129 /* xid: 8 bytes */ }; #ifdef DEFAULT_CHARSET #undef DEFAULT_CHARSET #endif enum opt_metadata_field_type { SIGNEDNESS = 1, DEFAULT_CHARSET, COLUMN_CHARSET, COLUMN_NAME, SET_STR_VALUE, ENUM_STR_VALUE, GEOMETRY_TYPE, SIMPLE_PRIMARY_KEY, PRIMARY_KEY_WITH_PREFIX, ENUM_AND_SET_DEFAULT_CHARSET, ENUM_AND_SET_COLUMN_CHARSET }; /* QFLAGS2 codes */ #define OPTION_AUTO_IS_NULL 0x00040000 #define OPTION_NOT_AUTOCOMMIT 0x00080000 #define OPTION_NO_FOREIGN_KEY_CHECKS 0x04000000 #define OPTION_RELAXED_UNIQUE_CHECKS 0x08000000 /* SQL modes */ #define MODE_REAL_AS_FLOAT 0x00000001 #define MODE_PIPES_AS_CONCAT 0x00000002 #define MODE_ANSI_QUOTES 0x00000004 #define MODE_IGNORE_SPACE 0x00000008 #define MODE_NOT_USED 0x00000010 #define MODE_ONLY_FULL_GROUP_BY 0x00000020 #define MODE_NO_UNSIGNED_SUBTRACTION 0x00000040 #define MODE_NO_DIR_IN_CREATE 0x00000080 #define MODE_POSTGRESQL 0x00000100 #define MODE_ORACLE 0x00000200 #define MODE_MSSQL 0x00000400 #define MODE_DB2 0x00000800 #define MODE_MAXDB 0x00001000 #define MODE_NO_KEY_OPTIONS 0x00002000 #define MODE_NO_TABLE_OPTIONS 0x00004000 #define MODE_NO_FIELD_OPTIONS 0x00008000 #define MODE_MYSQL323 0x00010000 #define MODE_MYSQL40 0x00020000 #define MODE_ANSI 0x00040000 #define MODE_NO_AUTO_VALUE_ON_ZERO 0x00080000 #define MODE_NO_BACKSLASH_ESCAPES 0x00100000 #define MODE_STRICT_TRANS_TABLES 0x00200000 #define MODE_STRICT_ALL_TABLES 0x00400000 #define MODE_NO_ZERO_IN_DATE 0x00800000 #define MODE_NO_ZERO_DATE 0x01000000 #define MODE_INVALID_DATES 0x02000000 #define MODE_ERROR_FOR_DIVISION_BY_ZERO 0x04000000 #define MODE_TRADITIONAL 0x08000000 #define MODE_NO_AUTO_CREATE_USER 0x10000000 #define MODE_HIGH_NOT_PRECEDENCE 0x20000000 #define MODE_NO_ENGINE_SUBSTITUTION 0x40000000 #define MODE_PAD_CHAR_TO_FULL_LENGTH 0x80000000 /* Log Event flags */ /* used in FOMRAT_DESCRIPTION_EVENT. Indicates if it is the active binary log. Note: When reading data via COM_BINLOG_DUMP this flag is never set. */ #define LOG_EVENT_BINLOG_IN_USE_F 0x0001 /* Looks like this flag is no longer in use */ #define LOG_EVENT_FORCED_ROTATE_F 0x0002 /* Log entry depends on thread, e.g. when using user variables or temporary tables */ #define LOG_EVENT_THREAD_SPECIFIC_F 0x0004 /* Indicates that the USE command can be suppressed before executing a statement: e.g. DRIP SCHEMA */ #define LOG_EVENT_SUPPRESS_USE_F 0x0008 /* ??? */ #define LOG_EVENT_UPDATE_TABLE_MAP_F 0x0010 /* Artifical event */ #define LOG_EVENT_ARTIFICIAL_F 0x0020 /* ??? */ #define LOG_EVENT_RELAY_LOG_F 0x0040 /* If an event is not supported, and LOG_EVENT_IGNORABLE_F was not set, an error will be reported. */ #define LOG_EVENT_IGNORABLE_F 0x0080 /* ??? */ #define LOG_EVENT_NO_FILTER_F 0x0100 /* ?? */ #define LOG_EVENT_MTS_ISOLATE_F 0x0200 /* if session variable @@skip_repliation was set, this flag will be reported for events which should be skipped. */ #define LOG_EVENT_SKIP_REPLICATION_F 0x8000 typedef struct { char *str; size_t length; } MARIADB_STRING; enum mariadb_row_event_type { WRITE_ROWS= 0, UPDATE_ROWS= 1, DELETE_ROWS= 2 }; /* Global transaction id */ typedef struct st_mariadb_gtid { unsigned int domain_id; unsigned int server_id; unsigned long long sequence_nr; } MARIADB_GTID; typedef struct st_rpl_timestamp { uint32_t second; uint32_t second_part; } MARIADB_TIMESTAMP; /* Generic replication handle */ typedef struct st_mariadb_rpl { unsigned int version; MYSQL *mysql; char *filename; uint32_t filename_length; uint32_t server_id; unsigned long start_position; uint16_t flags; uint8_t fd_header_len; /* header len from last format description event */ uint8_t use_checksum; uint8_t artificial_checksum; uint8_t verify_checksum; uint8_t post_header_len[ENUM_END_EVENT]; MA_FILE *fp; uint32_t error_no; char error_msg[MYSQL_ERRMSG_SIZE]; uint8_t uncompress; char *host; uint32_t port; uint8_t extract_values; char nonce[12]; uint8_t encrypted; uint8_t is_semi_sync; }MARIADB_RPL; typedef struct st_mariadb_rpl_value { enum enum_field_types field_type; uint8_t is_null; uint8_t is_signed; union { int64_t ll; uint64_t ull; float f; double d; MYSQL_TIME tm; MARIADB_TIMESTAMP ts; MARIADB_STRING str; } val; } MARIADB_RPL_VALUE; typedef struct st_rpl_mariadb_row { uint32_t column_count; MARIADB_RPL_VALUE *columns; struct st_rpl_mariadb_row *next; } MARIADB_RPL_ROW; /* Event header */ struct st_mariadb_rpl_rotate_event { unsigned long long position; MARIADB_STRING filename; }; struct st_mariadb_rpl_query_event { uint32_t thread_id; uint32_t seconds; MARIADB_STRING database; uint32_t errornr; MARIADB_STRING status; MARIADB_STRING statement; }; struct st_mariadb_rpl_previous_gtid_event { MARIADB_CONST_DATA content; }; struct st_mariadb_rpl_gtid_list_event { uint32_t gtid_cnt; MARIADB_GTID *gtid; }; struct st_mariadb_rpl_format_description_event { uint16_t format; char *server_version; uint32_t timestamp; uint8_t header_len; MARIADB_STRING post_header_lengths; }; struct st_mariadb_rpl_checkpoint_event { MARIADB_STRING filename; }; struct st_mariadb_rpl_xid_event { uint64_t transaction_nr; }; struct st_mariadb_rpl_gtid_event { uint64_t sequence_nr; uint32_t domain_id; uint8_t flags; uint64_t commit_id; uint32_t format_id; uint8_t gtrid_len; uint8_t bqual_len; MARIADB_STRING xid; }; struct st_mariadb_rpl_annotate_rows_event { MARIADB_STRING statement; }; struct st_mariadb_rpl_table_map_event { unsigned long long table_id; MARIADB_STRING database; MARIADB_STRING table; uint32_t column_count; MARIADB_STRING column_types; MARIADB_STRING metadata; unsigned char *null_indicator; unsigned char *signed_indicator; MARIADB_CONST_DATA column_names; MARIADB_CONST_DATA geometry_types; uint32_t default_charset; MARIADB_CONST_DATA column_charsets; MARIADB_CONST_DATA simple_primary_keys; MARIADB_CONST_DATA prefixed_primary_keys; MARIADB_CONST_DATA set_values; MARIADB_CONST_DATA enum_values; uint8_t enum_set_default_charset; MARIADB_CONST_DATA enum_set_column_charsets; }; struct st_mariadb_rpl_rand_event { unsigned long long first_seed; unsigned long long second_seed; }; struct st_mariadb_rpl_intvar_event { unsigned long long value; uint8_t type; }; struct st_mariadb_begin_load_query_event { uint32_t file_id; unsigned char *data; }; struct st_mariadb_start_encryption_event { uint8_t scheme; uint32_t key_version; char nonce[12]; }; struct st_mariadb_execute_load_query_event { uint32_t thread_id; uint32_t execution_time; MARIADB_STRING schema; uint16_t error_code; uint32_t file_id; uint32_t ofs1; uint32_t ofs2; uint8_t duplicate_flag; MARIADB_STRING status_vars; MARIADB_STRING statement; }; struct st_mariadb_rpl_uservar_event { MARIADB_STRING name; uint8_t is_null; uint8_t type; uint32_t charset_nr; MARIADB_STRING value; uint8_t flags; }; struct st_mariadb_rpl_rows_event { enum mariadb_row_event_type type; uint64_t table_id; uint16_t flags; uint32_t column_count; unsigned char *column_bitmap; unsigned char *column_update_bitmap; unsigned char *null_bitmap; size_t row_data_size; void *row_data; size_t extra_data_size; void *extra_data; uint8_t compressed; uint32_t row_count; }; struct st_mariadb_rpl_heartbeat_event { MARIADB_STRING filename; }; struct st_mariadb_rpl_xa_prepare_log_event { uint8_t one_phase; uint32_t format_id; uint32_t gtrid_len; uint32_t bqual_len; MARIADB_STRING xid; }; struct st_mariadb_gtid_log_event { uint8_t commit_flag; char source_id[16]; uint64_t sequence_nr; }; typedef struct st_mariadb_rpl_event { /* common header */ MA_MEM_ROOT memroot; unsigned char *raw_data; size_t raw_data_size; size_t raw_data_ofs; unsigned int checksum; char ok; enum mariadb_rpl_event event_type; unsigned int timestamp; unsigned int server_id; unsigned int event_length; unsigned int next_event_pos; unsigned short flags; /****************/ union { struct st_mariadb_rpl_rotate_event rotate; struct st_mariadb_rpl_query_event query; struct st_mariadb_rpl_format_description_event format_description; struct st_mariadb_rpl_gtid_list_event gtid_list; struct st_mariadb_rpl_checkpoint_event checkpoint; struct st_mariadb_rpl_xid_event xid; struct st_mariadb_rpl_gtid_event gtid; struct st_mariadb_rpl_annotate_rows_event annotate_rows; struct st_mariadb_rpl_table_map_event table_map; struct st_mariadb_rpl_rand_event rand; struct st_mariadb_rpl_intvar_event intvar; struct st_mariadb_rpl_uservar_event uservar; struct st_mariadb_rpl_rows_event rows; struct st_mariadb_rpl_heartbeat_event heartbeat; struct st_mariadb_rpl_xa_prepare_log_event xa_prepare_log; struct st_mariadb_begin_load_query_event begin_load_query; struct st_mariadb_execute_load_query_event execute_load_query; struct st_mariadb_gtid_log_event gtid_log; struct st_mariadb_start_encryption_event start_encryption; struct st_mariadb_rpl_previous_gtid_event previous_gtid; } event; /* Added in C/C 3.3.0 */ uint8_t is_semi_sync; uint8_t semi_sync_flags; /* Added in C/C 3.3.5 */ MARIADB_RPL *rpl; } MARIADB_RPL_EVENT; /* compression uses myisampack format */ #define myisam_uint1korr(B) ((uint8_t)(*B)) #define myisam_sint1korr(B) ((int8_t)(*B)) #define myisam_uint2korr(B)\ ((uint16_t)(((uint16_t)(((const uchar*)(B))[1])) | ((uint16_t) (((const uchar*) (B))[0]) << 8))) #define myisam_sint2korr(B)\ ((int16_t)(((int16_t)(((const uchar*)(B))[1])) | ((int16_t) (((const uchar*) (B))[0]) << 8))) #define myisam_uint3korr(B)\ ((uint32_t)(((uint32_t)(((const uchar*)(B))[2])) |\ (((uint32_t)(((const uchar*)(B))[1])) << 8) |\ (((uint32_t)(((const uchar*)(B))[0])) << 16))) #define myisam_sint3korr(B)\ ((int32_t)(((int32_t)(((const uchar*)(B))[2])) |\ (((int32_t)(((const uchar*)(B))[1])) << 8) |\ (((int32_t)(((const uchar*)(B))[0])) << 16))) #define myisam_uint4korr(B)\ ((uint32_t)(((uint32_t)(((const uchar*)(B))[3])) |\ (((uint32_t)(((const uchar*)(B))[2])) << 8) |\ (((uint32_t)(((const uchar*) (B))[1])) << 16) |\ (((uint32_t)(((const uchar*) (B))[0])) << 24))) #define myisam_sint4korr(B)\ ((int32_t)(((int32_t)(((const uchar*)(B))[3])) |\ (((int32_t)(((const uchar*)(B))[2])) << 8) |\ (((int32_t)(((const uchar*) (B))[1])) << 16) |\ (((int32_t)(((const uchar*) (B))[0])) << 24))) #define mi_uint5korr(B)\ ((uint64_t)(((uint32_t) (((const uchar*) (B))[4])) |\ (((uint32_t) (((const uchar*) (B))[3])) << 8) |\ (((uint32_t) (((const uchar*) (B))[2])) << 16) |\ (((uint32_t) (((const uchar*) (B))[1])) << 24)) |\ (((uint64_t) (((const uchar*) (B))[0])) << 32)) #define RPL_SAFEGUARD(rpl, event, condition) \ if (!(condition))\ {\ my_set_error((rpl)->mysql, CR_BINLOG_ERROR, SQLSTATE_UNKNOWN, 0,\ (rpl)->filename_length, (rpl)->filename,\ (rpl)->start_position,\ "Packet corrupted");\ mariadb_free_rpl_event((event));\ return 0;\ } #define mariadb_rpl_init(a) mariadb_rpl_init_ex((a), MARIADB_RPL_VERSION) #define rpl_clear_error(rpl)\ (rpl)->error_no= (rpl)->error_msg[0]= 0 #define IS_ROW_VERSION2(a)\ ((a) == WRITE_ROWS_EVENT || (a) == UPDATE_ROWS_EVENT || \ (a) == DELETE_ROWS_EVENT || (a) == WRITE_ROWS_COMPRESSED_EVENT ||\ (a) == UPDATE_ROWS_COMPRESSED_EVENT || (a) == DELETE_ROWS_COMPRESSED_EVENT) #define IS_ROW_EVENT(a)\ ((a)->event_type == WRITE_ROWS_COMPRESSED_EVENT_V1 ||\ (a)->event_type == UPDATE_ROWS_COMPRESSED_EVENT_V1 ||\ (a)->event_type == DELETE_ROWS_COMPRESSED_EVENT_V1 ||\ (a)->event_type == WRITE_ROWS_EVENT_V1 ||\ (a)->event_type == UPDATE_ROWS_EVENT_V1 ||\ (a)->event_type == DELETE_ROWS_EVENT_V1 ||\ (a)->event_type == WRITE_ROWS_EVENT ||\ (a)->event_type == UPDATE_ROWS_EVENT ||\ (a)->event_type == DELETE_ROWS_EVENT) /* Function prototypes */ MARIADB_RPL * STDCALL mariadb_rpl_init_ex(MYSQL *mysql, unsigned int version); const char * STDCALL mariadb_rpl_error(MARIADB_RPL *rpl); uint32_t STDCALL mariadb_rpl_errno(MARIADB_RPL *rpl); int STDCALL mariadb_rpl_optionsv(MARIADB_RPL *rpl, enum mariadb_rpl_option, ...); int STDCALL mariadb_rpl_get_optionsv(MARIADB_RPL *rpl, enum mariadb_rpl_option, ...); int STDCALL mariadb_rpl_open(MARIADB_RPL *rpl); void STDCALL mariadb_rpl_close(MARIADB_RPL *rpl); MARIADB_RPL_EVENT * STDCALL mariadb_rpl_fetch(MARIADB_RPL *rpl, MARIADB_RPL_EVENT *event); void STDCALL mariadb_free_rpl_event(MARIADB_RPL_EVENT *event); MARIADB_RPL_ROW * STDCALL mariadb_rpl_extract_rows(MARIADB_RPL *rpl, MARIADB_RPL_EVENT *tm_event, MARIADB_RPL_EVENT *row_event); #ifdef __cplusplus } #endif #endif
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