Quelle xtrabackup.h
Sprache: C
/******************************************************
Copyright ( c ) 2011 - 2015 Percona LLC and / or its affiliates .
Declarations for xtrabackup . cc
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation ; version 2 of the License .
This program 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 General Public License for more details .
You should have received a copy of the GNU General Public License
along with this program ; if not , write to the Free Software
Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1335 USA
*******************************************************/
#ifndef XB_XTRABACKUP_H
#define XB_XTRABACKUP_H
#include <my_getopt.h>
#include "datasink.h"
#include "xbstream.h"
#include "fil0fil.h"
#include <set>
#include "handler.h"
#include <utility>
#include <vector>
#include <tuple>
#include <functional>
#define XB_TOOL_NAME "mariadb-backup"
#define XB_HISTORY_TABLE "mysql.mariadb_backup_history"
struct xb_delta_info_t
{
xb_delta_info_t(ulint page_size, ulint zip_size, uint32_t space_id)
: page_size(page_size), zip_size(zip_size), space_id(space_id) {}
ulint page_size;
ulint zip_size;
uint32_t space_id;
};
class CorruptedPages
{
public :
CorruptedPages();
~CorruptedPages();
void add_page(const char *file_name, page_id_t page_id);
bool contains(page_id_t page_id) const ;
void drop_space(uint32_t space_id);
void rename_space(uint32_t space_id, const std::string &new_name);
bool print_to_file(ds_ctxt *ds_data, const char *file_name) const ;
void read_from_file(const char *file_name);
bool empty() const ;
void zero_out_free_pages();
void backup_fix_ddl(ds_ctxt *ds_data, ds_ctxt *ds_meta);
private :
void add_page_no_lock(const char *space_name, page_id_t page_id,
bool convert_space_name);
struct space_info_t {
std::string space_name;
std::set<uint32_t> pages;
};
typedef std::map<uint32_t, space_info_t> container_t;
mutable pthread_mutex_t m_mutex;
container_t m_spaces;
};
/* value of the --incremental option */
extern lsn_t incremental_lsn;
extern char *xtrabackup_target_dir;
extern char *xtrabackup_incremental_dir;
extern char *xtrabackup_incremental_basedir;
extern char *innobase_data_home_dir;
extern char *innobase_buffer_pool_filename;
extern char *aria_log_dir_path;
extern char *xb_plugin_dir;
extern char *xb_rocksdb_datadir;
extern my_bool xb_backup_rocksdb;
extern uint opt_protocol;
extern char *xtrabackup_incremental;
extern my_bool xtrabackup_incremental_force_scan;
extern lsn_t metadata_to_lsn;
extern xb_stream_fmt_t xtrabackup_stream_fmt;
extern ibool xtrabackup_stream;
extern char *xtrabackup_tables;
extern char *xtrabackup_tables_file;
extern char *xtrabackup_databases;
extern char *xtrabackup_databases_file;
extern char *xtrabackup_tables_exclude;
extern char *xtrabackup_databases_exclude;
extern uint xtrabackup_compress;
extern my_bool xtrabackup_backup;
extern my_bool xtrabackup_prepare;
extern my_bool xtrabackup_copy_back;
extern my_bool xtrabackup_move_back;
extern my_bool xtrabackup_decrypt_decompress;
extern char *innobase_data_file_path;
extern longlong innobase_page_size;
extern uint xtrabackup_parallel;
extern my_bool xb_close_files;
extern const char *xtrabackup_compress_alg;
extern uint xtrabackup_compress_threads;
extern ulonglong xtrabackup_compress_chunk_size;
extern my_bool xtrabackup_export;
extern char *xtrabackup_extra_lsndir;
extern ulint xtrabackup_log_copy_interval;
extern char *xtrabackup_stream_str;
extern long xtrabackup_throttle;
extern longlong xtrabackup_use_memory;
extern my_bool opt_galera_info;
extern my_bool opt_slave_info;
extern my_bool opt_no_lock;
extern my_bool opt_safe_slave_backup;
extern my_bool opt_force_non_empty_dirs;
extern my_bool opt_noversioncheck;
extern my_bool opt_no_backup_locks;
extern my_bool opt_decompress;
extern my_bool opt_remove_original;
extern my_bool opt_extended_validation;
extern my_bool opt_encrypted_backup;
extern my_bool opt_lock_ddl_per_table;
extern my_bool opt_log_innodb_page_corruption;
extern char *opt_incremental_history_name;
extern char *opt_incremental_history_uuid;
extern char *opt_user;
extern const char *opt_password;
extern bool free_opt_binlog_directory;
extern char *opt_host;
extern char *opt_defaults_group;
extern char *opt_socket;
extern uint opt_port;
extern char *opt_log_bin;
extern const char *query_type_names[];
enum query_type_t {QUERY_TYPE_ALL, QUERY_TYPE_UPDATE,
QUERY_TYPE_SELECT};
extern TYPELIB query_type_typelib;
extern ulong opt_lock_wait_query_type;
extern ulong opt_kill_long_query_type;
extern uint opt_kill_long_queries_timeout;
extern uint opt_lock_wait_timeout;
extern uint opt_lock_wait_threshold;
extern uint opt_debug_sleep_before_unlock;
extern uint opt_safe_slave_backup_timeout;
extern const char *opt_history;
enum binlog_info_enum { BINLOG_INFO_OFF, BINLOG_INFO_LOCKLESS, BINLOG_INFO_ON,
BINLOG_INFO_AUTO};
extern bool backup_binlog;
extern ulong opt_binlog_info;
extern ulong xtrabackup_innodb_force_recovery;
void xtrabackup_io_throttling(void );
my_bool xb_write_delta_metadata(ds_ctxt *ds_meta,
const char *filename,
const xb_delta_info_t *info);
/************************************************************************
Checks if a table specified as a name in the form " database / name " ( InnoDB 5 . 6 )
or " . / database / name . ibd " ( InnoDB 5 . 5 - ) should be skipped from backup based on
the - - tables or - - tables - file options .
@return TRUE if the table should be skipped. */
my_bool
check_if_skip_table(
/******************/
const char * name); /*!< in: path to the table */
/************************************************************************
Checks if a database specified by path should be skipped from backup based on
the - - databases , - - databases_file or - - databases_exclude options .
@return TRUE if the table should be skipped. */
my_bool
check_if_skip_database_by_path(
const char * path /*!< in: path to the db directory. */
);
/************************************************************************
Check if parameter is set in defaults file or via command line argument
@return true if parameter is set. */
bool
check_if_param_set(const char *param);
#if defined (HAVE_OPENSSL)
extern my_bool opt_ssl_verify_server_cert;
#endif
my_bool
xb_get_one_option(int optid,
const struct my_option *opt __attribute__((unused)),
char *argument);
const char *
xb_get_copy_action(const char *dflt = "Copying" );
void mdl_lock_init();
void mdl_lock_table(ulint space_id);
void mdl_unlock_all();
bool ends_with(const char *str, const char *suffix);
typedef void (*insert_entry_func_t)(const char *);
/* Scan string and load filter entries from it.
@ param [ in ] list string representing a list
@ param [ in ] delimiters delimiters of entries
@param[in] ins callback to add entry */
void xb_load_list_string(char *list, const char *delimiters,
insert_entry_func_t ins);
void register_ignore_db_dirs_filter(const char *name);
#ifdef _WIN32
typedef HANDLE os_file_dir_t; /*!< directory stream */
/** The os_file_opendir() function opens a directory stream corresponding to the
directory named by the dirname argument . The directory stream is positioned
at the first entry . In both Unix and Windows we automatically skip the ' . '
and ' . . ' items at the start of the directory listing .
@ param [ in ] dirname directory name ; it must not contain a trailing
' \ ' or ' / '
@ return directory stream
@retval INVALID_HANDLE_VALUE on error */
HANDLE os_file_opendir(const char *dirname);
# define os_file_closedir(dir) static_cast <void >(FindClose(dir))
# define os_file_closedir_failed(dir) !FindClose(dir)
#else
typedef DIR* os_file_dir_t;
# define os_file_opendir(dirname) opendir(dirname)
# define os_file_closedir(dir) static_cast <void >(closedir(dir))
# define os_file_closedir_failed(dir) closedir(dir)
#endif
/** This function returns information of the next file in the directory. We jump
over the ' . ' and ' . . ' entries in the directory .
@ param [ in ] dirname directory name or path
@ param [ in ] dir directory stream
@ param [ out ] info buffer where the info is returned
@return 0 if ok, -1 if error, 1 if at the end of the directory */
int
os_file_readdir_next_file(
const char * dirname,
os_file_dir_t dir,
os_file_stat_t* info);
/***********************************************************************//**
A fault-tolerant function that tries to read the next file name in the
directory. We retry 100 times if os_file_readdir_next_file() returns -1 . The
idea is to read as much good data as we can and jump over bad data.
@return 0 if ok, -1 if error even after the retries, 1 if at the end
of the directory */
int
fil_file_readdir_next_file(
/*=======================*/
dberr_t* err, /*!< out: this is set to DB_ERROR if an error
was encountered, otherwise not changed */
const char * dirname,/*!< in: directory name or path */
os_file_dir_t dir, /*!< in: directory stream */
os_file_stat_t* info); /*!< in/out: buffer where the
info is returned */
const char *convert_dst(const char *dst);
std::string get_table_version_from_image(const std::vector<uchar> &frm_image);
std::pair<bool , legacy_db_type>
get_table_engine_from_image(const std::vector<uchar> &frm_image);
std::string read_table_version_id(File file);
std::string convert_tablename_to_filepath(
const char *data_dir_path, const std::string &db, const std::string &table);
std::tuple<std::string, std::string, std::string>
convert_filepath_to_tablename(const char *filepath);
typedef std::string table_key_t;
inline table_key_t table_key(const std::string &db, const std::string &table) {
return std::string(db).append("." ).append(table);
};
inline table_key_t table_key(const char *db, const char *table) {
return std::string(db).append("." ).append(table);
};
typedef std::function<void (std::string, std::string, std::string)>
post_copy_table_hook_t;
my_bool
check_if_skip_table(
/******************/
const char * name); /*!< in: path to the table */
bool is_log_table(const char *dbname, const char *tablename);
bool is_stats_table(const char *dbname, const char *tablename);
extern my_bool xtrabackup_copy_back;
extern my_bool xtrabackup_move_back;
#endif /* XB_XTRABACKUP_H */
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(vorverarbeitet am 2026-10-08)
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*© Formatika GbR, Deutschland
2026-10-10
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