mysql_priv.h
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上传日期:2007-04-14
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- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #ifndef _MYSQL_PRIV_H
- #define _MYSQL_PRIV_H
- #include <global.h>
- #include <my_sys.h>
- #include <m_string.h>
- #include "mysql_version.h"
- #include <hash.h>
- #include <signal.h>
- #include <thr_lock.h>
- #include <my_base.h> /* Needed by field.h */
- #include <my_bitmap.h>
- #include <violite.h>
- #undef write // remove pthread.h macro definition for EMX
- typedef ulong table_map; /* Used for table bits in join */
- typedef ulong key_map; /* Used for finding keys */
- typedef ulong key_part_map; /* Used for finding key parts */
- #include "mysql_com.h"
- #include "unireg.h"
- void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
- gptr sql_alloc(unsigned size);
- gptr sql_calloc(unsigned size);
- char *sql_strdup(const char *str);
- char *sql_strmake(const char *str,uint len);
- gptr sql_memdup(const void * ptr,unsigned size);
- void sql_element_free(void *ptr);
- void kill_one_thread(THD *thd, ulong id);
- #define x_free(A) { my_free((gptr) (A),MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); }
- #define safeFree(x) { if(x) { my_free((gptr) x,MYF(0)); x = NULL; } }
- #define PREV_BITS(type,A) ((type) (((type) 1 << (A)) -1))
- #define all_bits_set(A,B) ((A) & (B) != (B))
- #ifndef LL
- #ifdef HAVE_LONG_LONG
- #define LL(A) A ## LL
- #else
- #define LL(A) A ## L
- #endif
- #endif
- /***************************************************************************
- Configuration parameters
- ****************************************************************************/
- #define ACL_CACHE_SIZE 256
- #define HASH_PASSWORD_LENGTH 16
- #define HOST_CACHE_SIZE 128
- #define MAX_ACCEPT_RETRY 10 // Test accept this many times
- #define MAX_BLOB_WIDTH 8192 // Default width for blob
- #define MAX_FIELDS_BEFORE_HASH 32
- #define USER_VARS_HASH_SIZE 16
- #define STACK_MIN_SIZE 8192 // Abort if less stack during eval.
- #ifndef MYSQLD_NET_RETRY_COUNT
- #define MYSQLD_NET_RETRY_COUNT 10 // Abort read after this many int.
- #endif
- #define TEMP_POOL_SIZE 128
- /* The following parameters is to decide when to use an extra cache to
- optimise seeks when reading a big table in sorted order */
- #define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (16L*1024*1024)
- #define MIN_ROWS_TO_USE_TABLE_CACHE 100
- // The following is used to decide if MySQL should use table scanning
- // instead of reading with keys. The number says how many evaluation of the
- // WHERE clause is comparable to reading one extra row from a table.
- #define TIME_FOR_COMPARE 5 // 5 compares == one read
- // Number of rows in a reference table when refereed through a not unique key.
- // This value is only used when we don't know anything about the key
- // distribution.
- #define MATCHING_ROWS_IN_OTHER_TABLE 10
- /* Don't pack string keys shorter than this (if PACK_KEYS=1 isn't used) */
- #define KEY_DEFAULT_PACK_LENGTH 8
- /* Characters shown for the command in 'show processlist' */
- #define PROCESS_LIST_WIDTH 100
- /* Time handling defaults */
- #define TIMESTAMP_MAX_YEAR 2038
- #define YY_PART_YEAR 70
- #define PRECISION_FOR_DOUBLE 53
- #define PRECISION_FOR_FLOAT 24
- /* The following can also be changed from the command line */
- #define CONNECT_TIMEOUT 5 // Do not wait long for connect
- #define DEFAULT_CONCURRENCY 10
- #define DELAYED_LIMIT 100 /* pause after xxx inserts */
- #define DELAYED_QUEUE_SIZE 1000
- #define DELAYED_WAIT_TIMEOUT 5*60 /* Wait for delayed insert */
- #define FLUSH_TIME 0 /* Don't flush tables */
- #define MAX_CONNECT_ERRORS 10 // errors before disabling host
- #ifdef __WIN__
- #define IF_WIN(A,B) (A)
- #undef FLUSH_TIME
- #define FLUSH_TIME 1800 /* Flush every half hour */
- #define INTERRUPT_PRIOR -2
- #define CONNECT_PRIOR -1
- #define WAIT_PRIOR 0
- #define QUERY_PRIOR 2
- #else
- #define IF_WIN(A,B) (B)
- #define INTERRUPT_PRIOR 10
- #define CONNECT_PRIOR 9
- #define WAIT_PRIOR 8
- #define QUERY_PRIOR 6
- #endif /* __WIN92__ */
- /* Bits from testflag */
- #define TEST_PRINT_CACHED_TABLES 1
- #define TEST_NO_KEY_GROUP 2
- #define TEST_MIT_THREAD 4
- #define TEST_BLOCKING 8
- #define TEST_KEEP_TMP_TABLES 16
- #define TEST_NO_THREADS 32 /* For debugging under Linux */
- #define TEST_READCHECK 64 /* Force use of readcheck */
- #define TEST_NO_EXTRA 128
- #define TEST_CORE_ON_SIGNAL 256 /* Give core if signal */
- #define TEST_NO_STACKTRACE 512
- /* options for select set by the yacc parser (stored in lex->options) */
- #define SELECT_DISTINCT 1
- #define SELECT_STRAIGHT_JOIN 2
- #define SELECT_DESCRIBE 4
- #define SELECT_SMALL_RESULT 8
- #define SELECT_BIG_RESULT 16
- #define SELECT_HIGH_PRIORITY 64 /* Intern */
- #define SELECT_USE_CACHE 256 /* Intern */
- #define SELECT_COUNT_DISTINCT 512 /* Intern */
- #define OPTION_BIG_TABLES 512 /* for SQL OPTION */
- #define OPTION_BIG_SELECTS 1024 /* for SQL OPTION */
- #define OPTION_LOG_OFF 2048
- #define OPTION_UPDATE_LOG 4096 /* update log flag */
- #define OPTION_LOW_PRIORITY_UPDATES 8192
- #define OPTION_WARNINGS 16384
- #define OPTION_AUTO_IS_NULL 32768
- #define OPTION_ANSI_MODE 65536L
- #define OPTION_SAFE_UPDATES OPTION_ANSI_MODE*2
- #define OPTION_BUFFER_RESULT OPTION_SAFE_UPDATES*2
- #define OPTION_BIN_LOG OPTION_BUFFER_RESULT*2
- #define OPTION_NOT_AUTO_COMMIT OPTION_BIN_LOG*2
- #define OPTION_BEGIN OPTION_NOT_AUTO_COMMIT*2
- #define OPTION_QUICK OPTION_BEGIN*2
- #define OPTION_QUOTE_SHOW_CREATE OPTION_QUICK*2
- #define OPTION_INTERNAL_SUBTRANSACTIONS OPTION_QUOTE_SHOW_CREATE*2
- /* Set if we are updating a non-transaction safe table */
- #define OPTION_STATUS_NO_TRANS_UPDATE OPTION_INTERNAL_SUBTRANSACTIONS*2
- /* The following is set when parsing the query */
- #define QUERY_NO_INDEX_USED OPTION_STATUS_NO_TRANS_UPDATE*2
- #define QUERY_NO_GOOD_INDEX_USED QUERY_NO_INDEX_USED*2
- #define RAID_BLOCK_SIZE 1024
- /* BINLOG_DUMP options */
- #define BINLOG_DUMP_NON_BLOCK 1
- /* sql_show.cc:show_log_files() */
- #define SHOW_LOG_STATUS_FREE "FREE"
- #define SHOW_LOG_STATUS_INUSE "IN USE"
- /* Some portable defines */
- #define portable_sizeof_char_ptr 8
- #define tmp_file_prefix "#sql" /* Prefix for tmp tables */
- #define tmp_file_prefix_length 4
- struct st_table;
- class THD;
- /* Struct to handle simple linked lists */
- typedef struct st_sql_list {
- uint elements;
- byte *first;
- byte **next;
- } SQL_LIST;
- uint nr_of_decimals(const char *str); /* Neaded by sql_string.h */
- extern pthread_key(THD*, THR_THD);
- inline THD *_current_thd(void)
- {
- return my_pthread_getspecific_ptr(THD*,THR_THD);
- }
- #define current_thd _current_thd()
- #include "sql_string.h"
- #include "sql_list.h"
- #include "sql_map.h"
- #include "handler.h"
- #include "table.h"
- #include "field.h" /* Field definitions */
- #include "sql_udf.h"
- #include "item.h"
- #include "sql_class.h"
- #include "opt_range.h"
- void mysql_create_db(THD *thd, char *db, uint create_info);
- void mysql_binlog_send(THD* thd, char* log_ident, ulong pos, ushort flags);
- int mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists);
- int quick_rm_table(enum db_type base,const char *db,
- const char *table_name);
- bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
- bool mysql_change_db(THD *thd,const char *name);
- void mysql_parse(THD *thd,char *inBuf,uint length);
- void mysql_init_select(LEX *lex);
- void init_max_user_conn(void);
- void free_max_user_conn(void);
- pthread_handler_decl(handle_one_connection,arg);
- pthread_handler_decl(handle_bootstrap,arg);
- sig_handler end_thread_signal(int sig);
- void end_thread(THD *thd,bool put_in_cache);
- void flush_thread_cache();
- void mysql_execute_command(void);
- bool do_command(THD *thd);
- bool check_stack_overrun(THD *thd,char *dummy);
- bool reload_acl_and_cache(THD *thd, uint options, TABLE_LIST *tables);
- void mysql_rm_db(THD *thd,char *db,bool if_exists);
- void table_cache_init(void);
- void table_cache_free(void);
- uint cached_tables(void);
- void kill_mysql(void);
- void close_connection(NET *net,uint errcode=0,bool lock=1);
- bool check_access(THD *thd,uint access,const char *db=0,uint *save_priv=0,
- bool no_grant=0);
- int generate_table(THD *thd, TABLE_LIST *table_list,
- TABLE *locked_table);
- int mysql_backup_table(THD* thd, TABLE_LIST* table_list);
- int mysql_restore_table(THD* thd, TABLE_LIST* table_list);
- int mysql_check_table(THD* thd, TABLE_LIST* table_list,
- HA_CHECK_OPT* check_opt);
- int mysql_repair_table(THD* thd, TABLE_LIST* table_list,
- HA_CHECK_OPT* check_opt);
- int mysql_analyze_table(THD* thd, TABLE_LIST* table_list,
- HA_CHECK_OPT* check_opt);
- int mysql_optimize_table(THD* thd, TABLE_LIST* table_list,
- HA_CHECK_OPT* check_opt);
- /* net_pkg.c */
- void send_error(NET *net,uint sql_errno=0, const char *err=0);
- void send_warning(NET *net, uint sql_errno, const char *err=0);
- void net_printf(NET *net,uint sql_errno, ...);
- void send_ok(NET *net,ha_rows affected_rows=0L,ulonglong id=0L,
- const char *info=0);
- void send_eof(NET *net,bool no_flush=0);
- char *net_store_length(char *packet,ulonglong length);
- char *net_store_length(char *packet,uint length);
- char *net_store_data(char *to,const char *from);
- char *net_store_data(char *to,int32 from);
- char *net_store_data(char *to,longlong from);
- bool net_store_null(String *packet);
- bool net_store_data(String *packet,uint32 from);
- bool net_store_data(String *packet,longlong from);
- bool net_store_data(String *packet,const char *from);
- bool net_store_data(String *packet,const char *from,uint length);
- bool net_store_data(String *packet,struct tm *tmp);
- bool net_store_data(String* packet, I_List<i_string>* str_list);
- bool net_store_data(String *packet,CONVERT *convert, const char *from,
- uint length);
- bool net_store_data(String *packet, CONVERT *convert, const char *from);
- SORT_FIELD * make_unireg_sortorder(ORDER *order, uint *length);
- int setup_order(THD *thd,TABLE_LIST *tables, List<Item> &fields,
- List <Item> &all_fields, ORDER *order);
- int mysql_select(THD *thd,TABLE_LIST *tables,List<Item> &list,COND *conds,
- List<Item_func_match> &ftfuncs,
- ORDER *order, ORDER *group,Item *having,ORDER *proc_param,
- uint select_type,select_result *result);
- Field *create_tmp_field(TABLE *table,Item *item, Item::Type type,
- Item_result_field ***copy_func, Field **from_field,
- bool group,bool modify_item);
- int mysql_create_table(THD *thd,const char *db, const char *table_name,
- HA_CREATE_INFO *create_info,
- List<create_field> &fields, List<Key> &keys,
- bool tmp_table, bool no_log);
- // no_log is needed for the case of CREATE TABLE ... SELECT , as the logging
- // will be done later in sql_insert.cc
- TABLE *create_table_from_items(THD *thd, HA_CREATE_INFO *create_info,
- const char *db, const char *name,
- List<create_field> *extra_fields,
- List<Key> *keys,
- List<Item> *items,
- MYSQL_LOCK **lock);
- int mysql_alter_table(THD *thd, char *new_db, char *new_name,
- HA_CREATE_INFO *create_info,
- TABLE_LIST *table_list,
- List<create_field> &fields,
- List<Key> &keys,List<Alter_drop> &drop_list,
- List<Alter_column> &alter_list,
- ORDER *order,
- bool drop_primary,
- enum enum_duplicates handle_duplicates);
- bool mysql_rename_table(enum db_type base,
- const char *old_db,
- const char * old_name,
- const char *new_db,
- const char * new_name);
- bool close_cached_table(THD *thd,TABLE *table);
- int mysql_create_index(THD *thd, TABLE_LIST *table_list, List<Key> &keys);
- int mysql_drop_index(THD *thd, TABLE_LIST *table_list,
- List<Alter_drop> &drop_list);
- int mysql_update(THD *thd,TABLE_LIST *tables,List<Item> &fields,
- List<Item> &values,COND *conds, ha_rows limit,
- enum enum_duplicates handle_duplicates,
- thr_lock_type lock_type);
- int mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
- List<List_item> &values, enum_duplicates flag,
- thr_lock_type lock_type);
- void kill_delayed_threads(void);
- int mysql_delete(THD *thd,TABLE_LIST *table,COND *conds,ha_rows rows,
- thr_lock_type lock_type, ulong options);
- TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type update);
- TABLE *open_table(THD *thd,const char *db,const char *table,const char *alias,
- bool *refresh);
- TABLE *reopen_name_locked_table(THD* thd, TABLE_LIST* table);
- TABLE *find_locked_table(THD *thd, const char *db,const char *table_name);
- bool reopen_table(TABLE *table,bool locked=0);
- bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
- void close_old_data_files(THD *thd, TABLE *table, bool abort_locks,
- bool send_refresh);
- bool close_data_tables(THD *thd,const char *db, const char *table_name);
- bool wait_for_tables(THD *thd);
- bool table_is_used(TABLE *table, bool wait_for_name_lock);
- bool drop_locked_tables(THD *thd,const char *db, const char *table_name);
- void abort_locked_tables(THD *thd,const char *db, const char *table_name);
- Field *find_field_in_tables(THD *thd,Item_field *item,TABLE_LIST *tables);
- Field *find_field_in_table(THD *thd,TABLE *table,const char *name,uint length,
- bool check_grant,bool allow_rowid);
- /* sql_list.c */
- int mysqld_show_dbs(THD *thd,const char *wild);
- int mysqld_show_open_tables(THD *thd,const char *db,const char *wild);
- int mysqld_show_tables(THD *thd,const char *db,const char *wild);
- int mysqld_extend_show_tables(THD *thd,const char *db,const char *wild);
- int mysqld_show_fields(THD *thd,TABLE_LIST *table, const char *wild,
- bool verbose);
- int mysqld_show_keys(THD *thd, TABLE_LIST *table);
- int mysqld_show_logs(THD *thd);
- void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
- int mysqld_dump_create_info(THD *thd, TABLE *table, int fd = -1);
- int mysqld_show_create(THD *thd, TABLE_LIST *table_list);
- void mysqld_list_processes(THD *thd,const char *user,bool verbose);
- int mysqld_show_status(THD *thd);
- int mysqld_show_variables(THD *thd,const char *wild);
- int mysqld_show(THD *thd, const char *wild, show_var_st *variables);
- /* sql_base.cc */
- void set_item_name(Item *item,char *pos,uint length);
- bool add_field_to_list(char *field_name, enum enum_field_types type,
- char *length, char *decimal,
- uint type_modifier, Item *default_value,char *change,
- TYPELIB *interval);
- void store_position_for_column(const char *name);
- bool add_to_list(SQL_LIST &list,Item *group,bool asc=0);
- TABLE_LIST *add_table_to_list(Table_ident *table,LEX_STRING *alias,
- bool updating,
- thr_lock_type flags=TL_UNLOCK,
- List<String> *use_index=0,
- List<String> *ignore_index=0);
- void add_join_on(TABLE_LIST *b,Item *expr);
- void add_join_natural(TABLE_LIST *a,TABLE_LIST *b);
- bool add_proc_to_list(Item *item);
- TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
- SQL_SELECT *make_select(TABLE *head, table_map const_tables,
- table_map read_tables, COND *conds, int *error);
- Item ** find_item_in_list(Item *item,List<Item> &items);
- int setup_fields(THD *thd,TABLE_LIST *tables,List<Item> &item,
- bool set_query_id,List<Item> *sum_func_list);
- int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds);
- int setup_ftfuncs(THD *thd,TABLE_LIST *tables, List<Item_func_match> &ftfuncs);
- void wait_for_refresh(THD *thd);
- int open_tables(THD *thd,TABLE_LIST *tables);
- int open_and_lock_tables(THD *thd,TABLE_LIST *tables);
- int lock_tables(THD *thd,TABLE_LIST *tables);
- TABLE *open_temporary_table(THD *thd, const char *path, const char *db,
- const char *table_name, bool link_in_list);
- bool rm_temporary_table(enum db_type base, char *path);
- bool send_fields(THD *thd,List<Item> &item,uint send_field_count);
- void free_io_cache(TABLE *entry);
- void intern_close_table(TABLE *entry);
- void close_thread_tables(THD *thd,bool locked=0);
- void close_temporary_tables(THD *thd);
- TABLE **find_temporary_table(THD *thd, const char *db, const char *table_name);
- bool close_temporary_table(THD *thd, const char *db, const char *table_name);
- void close_temporary(TABLE *table, bool delete_table=1);
- bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
- const char *table_name);
- void remove_db_from_cache(const my_string db);
- void flush_tables();
- bool remove_table_from_cache(THD *thd, const char *db, const char *table,
- bool return_if_owned_by_thd=0);
- bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);
- void copy_field_from_tmp_record(Field *field,int offset);
- int fill_record(List<Item> &fields,List<Item> &values);
- int fill_record(Field **field,List<Item> &values);
- int list_open_tables(THD *thd,List<char> *files, const char *db,const char *wild);
- char* query_table_status(THD *thd,const char *db,const char *table_name);
- /* sql_calc.cc */
- bool eval_const_cond(COND *cond);
- /* sql_load.cc */
- int mysql_load(THD *thd,sql_exchange *ex, TABLE_LIST *table_list,
- List<Item> &fields, enum enum_duplicates handle_duplicates,
- bool local_file,thr_lock_type lock_type);
- int write_record(TABLE *table,COPY_INFO *info);
- /* sql_manager.cc */
- /* bits set in manager_status */
- #define MANAGER_BERKELEY_LOG_CLEANUP (1L << 0)
- extern ulong volatile manager_status;
- extern bool volatile manager_thread_in_use;
- extern pthread_t manager_thread;
- extern pthread_mutex_t LOCK_manager;
- extern pthread_cond_t COND_manager;
- pthread_handler_decl(handle_manager, arg);
- /* sql_test.cc */
- #ifndef DBUG_OFF
- void print_where(COND *cond,const char *info);
- void print_cached_tables(void);
- void TEST_filesort(TABLE **form,SORT_FIELD *sortorder,uint s_length,
- ha_rows special);
- #endif
- void mysql_print_status(THD *thd);
- /* key.cc */
- int find_ref_key(TABLE *form,Field *field, uint *offset);
- void key_copy(byte *key,TABLE *form,uint index,uint key_length);
- void key_restore(TABLE *form,byte *key,uint index,uint key_length);
- int key_cmp(TABLE *form,const byte *key,uint index,uint key_length);
- void key_unpack(String *to,TABLE *form,uint index);
- bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields);
- void init_errmessage(void);
- void sql_perror(const char *message);
- void sql_print_error(const char *format,...)
- __attribute__ ((format (printf, 1, 2)));
- extern uint32 server_id;
- extern char mysql_data_home[2],server_version[SERVER_VERSION_LENGTH],
- max_sort_char, mysql_real_data_home[];
- extern my_string mysql_unix_port,mysql_tmpdir;
- extern const char *first_keyword, *localhost, *delayed_user;
- extern ulong refresh_version,flush_version, thread_id,query_id,opened_tables,
- created_tmp_tables, created_tmp_disk_tables,
- aborted_threads,aborted_connects,
- delayed_insert_timeout,
- delayed_insert_limit, delayed_queue_size,
- delayed_insert_threads, delayed_insert_writes,
- delayed_rows_in_use,delayed_insert_errors;
- extern ulong filesort_rows, filesort_range_count, filesort_scan_count;
- extern ulong filesort_merge_passes;
- extern ulong select_range_check_count, select_range_count, select_scan_count;
- extern ulong select_full_range_join_count,select_full_join_count,
- slave_open_temp_tables;
- extern uint test_flags,select_errors,mysql_port,ha_open_options;
- extern ulong thd_startup_options, slow_launch_threads, slow_launch_time;
- extern time_t start_time;
- extern const char *command_name[];
- extern I_List<THD> threads;
- extern MYSQL_LOG mysql_log,mysql_update_log,mysql_slow_log,mysql_bin_log;
- extern FILE *bootstrap_file;
- extern pthread_key(MEM_ROOT*,THR_MALLOC);
- extern pthread_key(NET*, THR_NET);
- extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
- LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
- LOCK_grant, LOCK_error_log, LOCK_delayed_insert,
- LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
- LOCK_binlog_update, LOCK_slave, LOCK_server_id;
- extern pthread_cond_t COND_refresh,COND_thread_count, COND_binlog_update,
- COND_slave_stopped, COND_slave_start;
- extern pthread_attr_t connection_attrib;
- extern bool opt_endinfo, using_udf_functions, locked_in_memory,
- opt_using_transactions, use_temp_pool;
- extern char f_fyllchar;
- extern ulong ha_read_count, ha_write_count, ha_delete_count, ha_update_count,
- ha_read_key_count, ha_read_next_count, ha_read_prev_count,
- ha_read_first_count, ha_read_last_count,
- ha_read_rnd_count, ha_read_rnd_next_count;
- extern MY_BITMAP temp_pool;
- extern uchar *days_in_month;
- extern DATE_FORMAT dayord;
- extern double log_10[32];
- extern uint protocol_version,dropping_tables;
- extern ulong keybuff_size,sortbuff_size,max_item_sort_length,table_cache_size,
- max_join_size,join_buff_size,tmp_table_size,
- max_connections,max_connect_errors,long_query_time,
- max_insert_delayed_threads, max_user_connections,
- long_query_count,net_wait_timeout,net_interactive_timeout,
- net_read_timeout,net_write_timeout,
- what_to_log,flush_time,
- max_tmp_tables,max_heap_table_size,query_buff_size,
- lower_case_table_names,thread_stack,thread_stack_min,
- binlog_cache_size, max_binlog_cache_size;
- extern ulong specialflag, current_pid;
- extern bool low_priority_updates;
- extern bool opt_sql_bin_update, opt_safe_show_db;
- extern char language[LIBLEN],reg_ext[FN_EXTLEN],blob_newline;
- extern const char **errmesg; /* Error messages */
- extern String empty_string;
- extern struct show_var_st init_vars[];
- extern struct show_var_st status_vars[];
- extern enum db_type default_table_type;
- #ifndef __WIN__
- extern pthread_t signal_thread;
- #endif
- extern bool volatile abort_loop, shutdown_in_progress, grant_option;
- extern uint volatile thread_count, thread_running, global_read_lock;
- MYSQL_LOCK *mysql_lock_tables(THD *thd,TABLE **table,uint count);
- void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock);
- void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
- void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);
- void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table);
- void mysql_lock_abort(THD *thd, TABLE *table);
- MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
- /* Lock based on name */
- int lock_table_name(THD *thd, TABLE_LIST *table_list);
- void unlock_table_name(THD *thd, TABLE_LIST *table_list);
- bool wait_for_locked_table_names(THD *thd, TABLE_LIST *table_list);
- /* old unireg functions */
- void unireg_init(ulong options);
- void unireg_end(int signal);
- int rea_create_table(my_string file_name,HA_CREATE_INFO *create_info,
- List<create_field> &create_field,
- uint key_count,KEY *key_info);
- int format_number(uint inputflag,uint max_length,my_string pos,uint length,
- my_string *errpos);
- int openfrm(const char *name,const char *alias,uint filestat,uint prgflag,
- uint ha_open_flags, TABLE *outparam);
- int closefrm(TABLE *table);
- db_type get_table_type(const char *name);
- int read_string(File file, gptr *to, uint length);
- void free_blobs(TABLE *table);
- int set_zone(int nr,int min_zone,int max_zone);
- ulong convert_period_to_month(ulong period);
- ulong convert_month_to_period(ulong month);
- long calc_daynr(uint year,uint month,uint day);
- uint calc_days_in_year(uint year);
- void get_date_from_daynr(long daynr,uint *year, uint *month,
- uint *day);
- void init_time(void);
- long my_gmt_sec(TIME *);
- time_t str_to_timestamp(const char *str,uint length);
- bool str_to_time(const char *str,uint length,TIME *l_time);
- longlong str_to_datetime(const char *str,uint length,bool fuzzy_date);
- timestamp_type str_to_TIME(const char *str, uint length, TIME *l_time,
- bool fuzzy_date);
- int test_if_number(char *str,int *res,bool allow_wildcards);
- void change_byte(byte *,uint,char,char);
- void unireg_abort(int exit_code);
- void init_read_record(READ_RECORD *info, THD *thd, TABLE *reg_form,
- SQL_SELECT *select,
- int use_record_cache, bool print_errors);
- void end_read_record(READ_RECORD *info);
- ha_rows filesort(TABLE **form,struct st_sort_field *sortorder, uint s_length,
- SQL_SELECT *select, ha_rows special,ha_rows max_rows);
- void change_double_for_sort(double nr,byte *to);
- int get_quick_record(SQL_SELECT *select);
- int calc_weekday(long daynr,bool sunday_first_day_of_week);
- uint calc_week(TIME *ltime, bool with_year, bool sunday_first_day_of_week,
- uint *year);
- void find_date(char *pos,uint *vek,uint flag);
- TYPELIB *convert_strings_to_array_type(my_string *typelibs, my_string *end);
- TYPELIB *typelib(List<String> &strings);
- void clean_up(void);
- ulong get_form_pos(File file, uchar *head, TYPELIB *save_names);
- ulong make_new_entry(File file,uchar *fileinfo,TYPELIB *formnames,
- const char *newname);
- ulong next_io_size(ulong pos);
- void append_unescaped(String *res,const char *pos);
- int create_frm(char *name,uint reclength,uchar *fileinfo,
- HA_CREATE_INFO *create_info, uint keys);
- void update_create_info_from_table(HA_CREATE_INFO *info, TABLE *form);
- int rename_file_ext(const char * from,const char * to,const char * ext);
- bool check_db_name(const char *db);
- bool check_column_name(const char *name);
- bool check_table_name(const char *name, uint length);
- char *get_field(MEM_ROOT *mem,TABLE *table,uint fieldnr);
- int wild_case_compare(const char *str,const char *wildstr);
- int wild_compare(const char *str,const char *str_end,
- const char *wildstr,const char *wildend,char escape);
- int wild_case_compare(const char *str,const char *str_end,
- const char *wildstr,const char *wildend,char escape);
- /* from hostname.cc */
- struct in_addr;
- my_string ip_to_hostname(struct in_addr *in,uint *errors);
- void inc_host_errors(struct in_addr *in);
- void reset_host_errors(struct in_addr *in);
- bool hostname_cache_init();
- void hostname_cache_free();
- void hostname_cache_refresh(void);
- bool get_interval_info(const char *str,uint length,uint count,
- long *values);
- /* sql_cache */
- extern bool sql_cache_init();
- extern void sql_cache_free();
- extern int sql_cache_hit(THD *thd, char *inBuf, uint length);
- /* Some inline functions for more speed */
- inline bool add_item_to_list(Item *item)
- {
- return current_lex->item_list.push_back(item);
- }
- inline bool add_value_to_list(Item *value)
- {
- return current_lex->value_list.push_back(value);
- }
- inline bool add_order_to_list(Item *item,bool asc)
- {
- return add_to_list(current_lex->order_list,item,asc);
- }
- inline bool add_group_to_list(Item *item,bool asc)
- {
- return add_to_list(current_lex->group_list,item,asc);
- }
- inline void mark_as_null_row(TABLE *table)
- {
- table->null_row=1;
- table->status|=STATUS_NULL_ROW;
- bfill(table->null_flags,table->null_bytes,255);
- }
- #endif