mysql_priv.h 27.6 KB
Newer Older
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
2

bk@work.mysql.com's avatar
bk@work.mysql.com committed
3 4 5 6
   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.
7

bk@work.mysql.com's avatar
bk@work.mysql.com committed
8 9 10 11
   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.
12

bk@work.mysql.com's avatar
bk@work.mysql.com committed
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
   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 */
28
#include <my_bitmap.h>
bk@work.mysql.com's avatar
bk@work.mysql.com committed
29 30
#include <violite.h>

monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
31
#ifdef __EMX__
32
#undef write  // remove pthread.h macro definition for EMX
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
33
#endif
34

bk@work.mysql.com's avatar
bk@work.mysql.com committed
35 36 37 38 39 40 41
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"

42
void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
43 44 45 46 47 48
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);
49
void kill_one_thread(THD *thd, ulong id);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

#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

/***************************************************************************
65
  Configuration parameters
bk@work.mysql.com's avatar
bk@work.mysql.com committed
66 67 68 69 70 71 72 73 74 75
****************************************************************************/

#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.
76
#define STACK_BUFF_ALLOC	32	// For stack overrun checks
bk@work.mysql.com's avatar
bk@work.mysql.com committed
77 78 79
#ifndef MYSQLD_NET_RETRY_COUNT
#define MYSQLD_NET_RETRY_COUNT  10	// Abort read after this many int.
#endif
80
#define TEMP_POOL_SIZE          128
81 82 83 84
/*
  The following parameters is to decide when to use an extra cache to
   optimise seeks when reading a big table in sorted order
*/
bk@work.mysql.com's avatar
bk@work.mysql.com committed
85 86 87
#define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (16L*1024*1024)
#define MIN_ROWS_TO_USE_TABLE_CACHE	 100

88 89 90 91 92
/*
  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.
*/
93
#define TIME_FOR_COMPARE   5	// 5 compares == one read
94 95 96 97 98 99

/*
  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.
*/
100
#define MATCHING_ROWS_IN_OTHER_TABLE 10
bk@work.mysql.com's avatar
bk@work.mysql.com committed
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122

/* 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

monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
123
#if defined(__WIN__) || defined(OS2)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
#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__ */

monty@donna.mysql.com's avatar
monty@donna.mysql.com committed
140
	/* Bits from testflag */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
141 142 143 144 145 146 147 148
#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
149
#define TEST_CORE_ON_SIGNAL	256	/* Give core if signal */
150
#define TEST_NO_STACKTRACE	512
bk@work.mysql.com's avatar
bk@work.mysql.com committed
151

152
/* options for select set by the yacc parser (stored in lex->options) */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168
#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
169 170
#define OPTION_FOUND_COMMENT	65536L
#define OPTION_SAFE_UPDATES	OPTION_FOUND_COMMENT*2
bk@work.mysql.com's avatar
bk@work.mysql.com committed
171 172
#define OPTION_BUFFER_RESULT	OPTION_SAFE_UPDATES*2
#define OPTION_BIN_LOG          OPTION_BUFFER_RESULT*2
173 174
#define OPTION_NOT_AUTO_COMMIT	OPTION_BIN_LOG*2
#define OPTION_BEGIN		OPTION_NOT_AUTO_COMMIT*2
175 176
#define OPTION_TABLE_LOCK	OPTION_BEGIN*2
#define OPTION_QUICK		OPTION_TABLE_LOCK*2
177
#define OPTION_QUOTE_SHOW_CREATE OPTION_QUICK*2
monty@donna.mysql.com's avatar
monty@donna.mysql.com committed
178
#define OPTION_INTERNAL_SUBTRANSACTIONS OPTION_QUOTE_SHOW_CREATE*2
bk@work.mysql.com's avatar
bk@work.mysql.com committed
179

180
/* Set if we are updating a non-transaction safe table */
181
#define OPTION_STATUS_NO_TRANS_UPDATE OPTION_INTERNAL_SUBTRANSACTIONS*2
182

183
/* The following is set when parsing the query */
184 185
#define QUERY_NO_INDEX_USED		OPTION_STATUS_NO_TRANS_UPDATE*2
#define QUERY_NO_GOOD_INDEX_USED	QUERY_NO_INDEX_USED*2
186 187 188 189 190 191 192
/* The following can be set when importing tables in a 'wrong order'
   to suppress foreign key checks */
#define OPTION_NO_FOREIGN_KEY_CHECKS  QUERY_NO_GOOD_INDEX_USED*2
/* The following speeds up inserts to InnoDB tables by suppressing unique
   key checks in some cases */
#define OPTION_RELAXED_UNIQUE_CHECKS  OPTION_NO_FOREIGN_KEY_CHECKS*2
/* NOTE: we have now used 31 bits of the OPTION flag! */
193

194 195 196 197 198 199 200 201
/* Bits for different SQL modes modes (including ANSI mode) */
#define MODE_REAL_AS_FLOAT      1
#define MODE_PIPES_AS_CONCAT    2
#define MODE_ANSI_QUOTES        4
#define MODE_IGNORE_SPACE	8
#define MODE_SERIALIZABLE	16
#define MODE_ONLY_FULL_GROUP_BY	32

bk@work.mysql.com's avatar
bk@work.mysql.com committed
202 203 204 205 206 207
#define RAID_BLOCK_SIZE 1024

/* BINLOG_DUMP options */

#define BINLOG_DUMP_NON_BLOCK   1

tim@cane.mysql.fi's avatar
tim@cane.mysql.fi committed
208 209 210 211
/* sql_show.cc:show_log_files() */
#define SHOW_LOG_STATUS_FREE "FREE"
#define SHOW_LOG_STATUS_INUSE "IN USE"

bk@work.mysql.com's avatar
bk@work.mysql.com committed
212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256
/* 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);
257
bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
258 259
bool mysql_change_db(THD *thd,const char *name);
void mysql_parse(THD *thd,char *inBuf,uint length);
260
void mysql_init_select(LEX *lex);
261 262
void init_max_user_conn(void);
void free_max_user_conn(void);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
263
pthread_handler_decl(handle_one_connection,arg);
264
pthread_handler_decl(handle_bootstrap,arg);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
265 266 267 268 269 270
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);
271
bool reload_acl_and_cache(THD *thd, uint options, TABLE_LIST *tables);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
272 273 274 275 276 277 278 279
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);
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
280
bool check_table_access(THD *thd,uint want_access,TABLE_LIST *tables);
monty@tik.mysql.fi's avatar
monty@tik.mysql.fi committed
281
bool check_process_priv(THD *thd=0);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
282

283 284 285 286 287 288 289
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);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
290 291 292 293
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);
294 295 296 297
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);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
298 299 300

/* net_pkg.c */
void send_error(NET *net,uint sql_errno=0, const char *err=0);
301
void send_warning(NET *net, uint sql_errno, const char *err=0);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
302 303 304 305 306 307 308 309 310
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);
311

bk@work.mysql.com's avatar
bk@work.mysql.com committed
312 313 314 315 316 317 318
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);
319 320 321
bool net_store_data(String *packet,CONVERT *convert, const char *from,
		    uint length);
bool net_store_data(String *packet, CONVERT *convert, const char *from);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
322

323 324 325 326
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);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351
int mysql_select(THD *thd,TABLE_LIST *tables,List<Item> &list,COND *conds,
		 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,
352
                      ORDER *order,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
353 354
		      bool drop_primary,
		      enum enum_duplicates handle_duplicates);
355 356 357 358 359
bool mysql_rename_table(enum db_type base,
			const char *old_db,
			const char * old_name,
			const char *new_db,
			const char * new_name);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
360 361 362 363 364 365 366 367 368 369 370 371 372
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,
373
		 thr_lock_type lock_type, ulong options);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
374 375 376
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);
377
TABLE *reopen_name_locked_table(THD* thd, TABLE_LIST* table);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
378 379 380
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);
381 382
void close_old_data_files(THD *thd, TABLE *table, bool abort_locks,
			  bool send_refresh);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
383 384
bool close_data_tables(THD *thd,const char *db, const char *table_name);
bool wait_for_tables(THD *thd);
385
bool table_is_used(TABLE *table, bool wait_for_name_lock);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
386 387 388 389 390 391
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);

monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
392 393 394
/* sql_do.cc */
int mysql_do(THD *thd, List<Item> &values);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
395 396
/* sql_list.c */
int mysqld_show_dbs(THD *thd,const char *wild);
397
int mysqld_show_open_tables(THD *thd,const char *db,const char *wild);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
398 399
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);
monty@donna.mysql.com's avatar
monty@donna.mysql.com committed
400 401
int mysqld_show_fields(THD *thd,TABLE_LIST *table, const char *wild,
		       bool verbose);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
402
int mysqld_show_keys(THD *thd, TABLE_LIST *table);
tim@cane.mysql.fi's avatar
tim@cane.mysql.fi committed
403
int mysqld_show_logs(THD *thd);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421
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,
422
			      bool updating,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
423 424 425 426 427 428 429 430 431 432 433
			      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);
434
bool setup_tables(TABLE_LIST *tables);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
435 436 437
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);
438 439
int setup_ftfuncs(THD *thd);
int init_ftfuncs(THD *thd, bool no_order);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
440 441 442 443 444 445 446 447 448 449
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);
450
bool close_thread_table(THD *thd, TABLE **table_ptr);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
451 452 453 454 455
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);
456
bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
457 458 459
			    const char *table_name);
void remove_db_from_cache(const my_string db);
void flush_tables();
460 461
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
			     bool return_if_owned_by_thd=0);
462
bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
463 464 465
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);
466 467
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);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
468 469 470 471 472 473 474 475 476

/* 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);
477 478 479 480

/* sql_manager.cc */
/* bits set in manager_status */
#define MANAGER_BERKELEY_LOG_CLEANUP    (1L << 0)
481
extern ulong volatile manager_status;
482 483 484 485 486 487
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);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508
/* 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)));

509
extern ulong  server_id;
510 511
extern char mysql_data_home[2],server_version[SERVER_VERSION_LENGTH],
	    max_sort_char, mysql_real_data_home[];
bk@work.mysql.com's avatar
bk@work.mysql.com committed
512
extern my_string mysql_unix_port,mysql_tmpdir;
513
extern const char *first_keyword, *localhost, *delayed_user;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
514
extern ulong refresh_version,flush_version, thread_id,query_id,opened_tables,
515 516
	     created_tmp_tables, created_tmp_disk_tables,
	     aborted_threads,aborted_connects,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
517 518 519 520
	     delayed_insert_timeout,
	     delayed_insert_limit, delayed_queue_size,
	     delayed_insert_threads, delayed_insert_writes,
	     delayed_rows_in_use,delayed_insert_errors;
521
extern ulong filesort_rows, filesort_range_count, filesort_scan_count;
522
extern ulong filesort_merge_passes;
523
extern ulong select_range_check_count, select_range_count, select_scan_count;
524 525
extern ulong select_full_range_join_count,select_full_join_count,
			 slave_open_temp_tables;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
526 527 528 529 530 531
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;
532
extern FILE *bootstrap_file;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
533 534 535 536 537 538
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,
539
       LOCK_binlog_update, LOCK_slave, LOCK_server_id;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
540
extern pthread_cond_t COND_refresh,COND_thread_count, COND_binlog_update,
541
                      COND_slave_stopped, COND_slave_start;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
542
extern pthread_attr_t connection_attrib;
543
extern bool opt_endinfo, using_udf_functions, locked_in_memory,
544
            opt_using_transactions, use_temp_pool, opt_local_infile;
545
extern char f_fyllchar;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
546 547 548 549
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;
550
extern MY_BITMAP temp_pool;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
551 552 553 554 555 556 557
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,
558
	     max_insert_delayed_threads, max_user_connections,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
559 560
	     long_query_count,net_wait_timeout,net_interactive_timeout,
	     net_read_timeout,net_write_timeout,
monty@hundin.mysql.fi's avatar
merge  
monty@hundin.mysql.fi committed
561
	     what_to_log,flush_time, opt_sql_mode,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
562
	     max_tmp_tables,max_heap_table_size,query_buff_size,
563
	     lower_case_table_names,thread_stack,thread_stack_min,
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
564
	     binlog_cache_size, max_binlog_cache_size, record_rnd_cache_size;
565
extern ulong com_stat[(uint) SQLCOM_END], com_other;
566
extern ulong specialflag, current_pid;
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
567 568
extern bool low_priority_updates, using_update_log,opt_warnings;
extern bool opt_sql_bin_update, opt_safe_show_db, opt_safe_user_create;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
569 570
extern char language[LIBLEN],reg_ext[FN_EXTLEN],blob_newline;
extern const char **errmesg;			/* Error messages */
571
extern const char *default_tx_isolation_name;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
572 573 574 575
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;
monty@tik.mysql.fi's avatar
monty@tik.mysql.fi committed
576
extern enum enum_tx_isolation default_tx_isolation;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592

#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);

593 594 595 596 597
/* 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);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
598 599 600 601 602 603 604 605 606 607 608

/* 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,
609
	    uint ha_open_flags, TABLE *outparam);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633
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,
634
		      int use_record_cache, bool print_errors);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
635 636
void end_read_record(READ_RECORD *info);
ha_rows filesort(TABLE **form,struct st_sort_field *sortorder, uint s_length,
637 638
		 SQL_SELECT *select, ha_rows special,ha_rows max_rows,
		 ha_rows *examined_rows);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
639 640 641 642 643 644 645 646
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);
647
void clean_up(bool print_message=1);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
648 649 650 651 652 653 654 655 656
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);
657
bool check_db_name(char *db);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
658 659 660 661
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);
662 663 664 665 666
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);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703
/* 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;
704
  table->status|=STATUS_NULL_ROW;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
705 706 707 708
  bfill(table->null_flags,table->null_bytes,255);
}

#endif