mysql_priv.h 43.9 KB
Newer Older
unknown's avatar
unknown committed
1
/* Copyright (C) 2000-2003 MySQL AB
2

unknown's avatar
unknown 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

unknown's avatar
unknown 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

unknown's avatar
unknown committed
13 14 15 16
   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 */

17 18 19 20 21 22 23 24 25
/*
  Mostly this file is used in the server. But a little part of it is used in
  mysqlbinlog too (definition of SELECT_DISTINCT and others).
  The consequence is that 90% of the file is wrapped in #ifndef MYSQL_CLIENT,
  except the part which must be in the server and in the client.
*/

#ifndef MYSQL_CLIENT

unknown's avatar
unknown committed
26
#include <my_global.h>
27
#include <assert.h>
unknown's avatar
unknown committed
28 29
#include <mysql_version.h>
#include <mysql_embed.h>
unknown's avatar
unknown committed
30 31 32 33 34 35
#include <my_sys.h>
#include <m_string.h>
#include <hash.h>
#include <signal.h>
#include <thr_lock.h>
#include <my_base.h>			/* Needed by field.h */
36
#include "sql_bitmap.h"
unknown's avatar
unknown committed
37

unknown's avatar
unknown committed
38
#ifdef __EMX__
unknown's avatar
unknown committed
39
#undef write  /* remove pthread.h macro definition for EMX */
unknown's avatar
unknown committed
40
#endif
41

42 43 44 45 46 47 48 49
/* TODO convert all these three maps to Bitmap classes */
typedef ulonglong table_map;          /* Used for table bits in join */
typedef Bitmap<64> key_map;           /* Used for finding keys */
typedef ulong key_part_map;           /* Used for finding key parts */

/* useful constants */
extern const key_map key_map_empty;
extern const key_map key_map_full;
50
extern const char *primary_key_name;
unknown's avatar
unknown committed
51 52

#include "mysql_com.h"
unknown's avatar
unknown committed
53
#include <violite.h>
unknown's avatar
unknown committed
54 55
#include "unireg.h"

56
void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
unknown's avatar
unknown committed
57 58 59 60 61 62
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);
unknown's avatar
unknown committed
63 64 65 66
char *sql_strmake_with_convert(const char *str, uint32 arg_length,
			       CHARSET_INFO *from_cs,
			       uint32 max_res_length,
			       CHARSET_INFO *to_cs, uint32 *result_length);
67
void kill_one_thread(THD *thd, ulong id, bool only_kill_query);
68
bool net_request_file(NET* net, const char* fname);
unknown's avatar
unknown committed
69
char* query_table_status(THD *thd,const char *db,const char *table_name);
unknown's avatar
unknown committed
70 71 72 73 74 75 76 77 78 79 80 81 82 83

#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

84 85
extern CHARSET_INFO *system_charset_info, *files_charset_info ;
extern CHARSET_INFO *national_charset_info, *table_alias_charset;
86

unknown's avatar
unknown committed
87
/***************************************************************************
88
  Configuration parameters
unknown's avatar
unknown committed
89 90 91
****************************************************************************/

#define ACL_CACHE_SIZE		256
92
#define MAX_PASSWORD_LENGTH	32
unknown's avatar
unknown committed
93 94 95 96 97
#define HOST_CACHE_SIZE		128
#define MAX_ACCEPT_RETRY	10	// Test accept this many times
#define MAX_FIELDS_BEFORE_HASH	32
#define USER_VARS_HASH_SIZE     16
#define STACK_MIN_SIZE		8192	// Abort if less stack during eval.
unknown's avatar
unknown committed
98
#define STACK_BUFF_ALLOC	64	// For stack overrun checks
unknown's avatar
unknown committed
99 100 101
#ifndef MYSQLD_NET_RETRY_COUNT
#define MYSQLD_NET_RETRY_COUNT  10	// Abort read after this many int.
#endif
102
#define TEMP_POOL_SIZE          128
103 104 105 106 107 108 109 110 111

#define QUERY_ALLOC_BLOCK_SIZE		8192
#define QUERY_ALLOC_PREALLOC_SIZE   	8192
#define TRANS_ALLOC_BLOCK_SIZE		4096
#define TRANS_ALLOC_PREALLOC_SIZE	4096
#define RANGE_ALLOC_BLOCK_SIZE		2048
#define ACL_ALLOC_BLOCK_SIZE		1024
#define UDF_ALLOC_BLOCK_SIZE		1024
#define TABLE_ALLOC_BLOCK_SIZE		1024
unknown's avatar
unknown committed
112 113 114
#define BDB_LOG_ALLOC_BLOCK_SIZE	1024
#define WARN_ALLOC_BLOCK_SIZE		2048
#define WARN_ALLOC_PREALLOC_SIZE	1024
115

116 117
/*
  The following parameters is to decide when to use an extra cache to
unknown's avatar
unknown committed
118
  optimise seeks when reading a big table in sorted order
119
*/
unknown's avatar
unknown committed
120 121
#define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (16L*1024*1024)
#define MIN_ROWS_TO_USE_TABLE_CACHE	 100
122
#define MIN_ROWS_TO_USE_BULK_INSERT	 100
unknown's avatar
unknown committed
123

124 125 126 127 128
/*
  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.
*/
129
#define TIME_FOR_COMPARE   5	// 5 compares == one read
130

131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
/*
  Number of comparisons of table rowids equivalent to reading one row from a 
  table.
*/
#define TIME_FOR_COMPARE_ROWID  (TIME_FOR_COMPARE*2)

/*
  For sequential disk seeks the cost formula is:
    DISK_SEEK_BASE_COST + DISK_SEEK_PROP_COST * #blocks_to_skip  
  
  The cost of average seek 
    DISK_SEEK_BASE_COST + DISK_SEEK_PROP_COST*BLOCKS_IN_AVG_SEEK =1.0.
*/
#define DISK_SEEK_BASE_COST ((double)0.5)

#define BLOCKS_IN_AVG_SEEK  128

#define DISK_SEEK_PROP_COST ((double)0.5/BLOCKS_IN_AVG_SEEK)


151 152 153 154 155
/*
  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.
*/
156
#define MATCHING_ROWS_IN_OTHER_TABLE 10
unknown's avatar
unknown committed
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178

/* 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

unknown's avatar
unknown committed
179
#if defined(__WIN__) || defined(OS2)
unknown's avatar
unknown committed
180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
#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__ */

unknown's avatar
unknown committed
196
	/* Bits from testflag */
unknown's avatar
unknown committed
197 198 199 200 201 202 203 204
#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
205
#define TEST_CORE_ON_SIGNAL	256	/* Give core if signal */
unknown's avatar
unknown committed
206
#define TEST_NO_STACKTRACE	512
207
#define TEST_SIGINT		1024	/* Allow sigint on threads */
unknown's avatar
unknown committed
208

209 210 211 212 213 214 215 216 217
#endif

/* 
   This is included in the server and in the client.
   Options for select set by the yacc parser (stored in lex->options).
   None of the 32 defines below should have its value changed, or this will
   break replication.
*/

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
#define SELECT_DISTINCT		(1L << 0)
#define SELECT_STRAIGHT_JOIN	(1L << 1)
#define SELECT_DESCRIBE		(1L << 2)
#define SELECT_SMALL_RESULT	(1L << 3)
#define SELECT_BIG_RESULT	(1L << 4)
#define OPTION_FOUND_ROWS	(1L << 5)
#define OPTION_TO_QUERY_CACHE   (1L << 6)
#define SELECT_NO_JOIN_CACHE	(1L << 7)       /* Intern */
#define OPTION_BIG_TABLES       (1L << 8)       /* for SQL OPTION */
#define OPTION_BIG_SELECTS      (1L << 9)       /* for SQL OPTION */
#define OPTION_LOG_OFF          (1L << 10)
#define OPTION_UPDATE_LOG       (1L << 11)      /* update log flag */
#define TMP_TABLE_ALL_COLUMNS   (1L << 12)
#define OPTION_WARNINGS         (1L << 13)
#define OPTION_AUTO_IS_NULL     (1L << 14)
#define OPTION_FOUND_COMMENT    (1L << 15)
#define OPTION_SAFE_UPDATES     (1L << 16)
#define OPTION_BUFFER_RESULT    (1L << 17)
#define OPTION_BIN_LOG          (1L << 18)
#define OPTION_NOT_AUTOCOMMIT   (1L << 19)
#define OPTION_BEGIN            (1L << 20)
#define OPTION_TABLE_LOCK       (1L << 21)
#define OPTION_QUICK            (1L << 22)
#define OPTION_QUOTE_SHOW_CREATE (1L << 23)
#define OPTION_INTERNAL_SUBTRANSACTIONS (1L << 24)
unknown's avatar
unknown committed
243

244
/* Set if we are updating a non-transaction safe table */
245
#define OPTION_STATUS_NO_TRANS_UPDATE   (1L << 25)
246

unknown's avatar
unknown committed
247 248
/* The following can be set when importing tables in a 'wrong order'
   to suppress foreign key checks */
249
#define OPTION_NO_FOREIGN_KEY_CHECKS    (1L << 26)
unknown's avatar
unknown committed
250 251
/* The following speeds up inserts to InnoDB tables by suppressing unique
   key checks in some cases */
252 253 254
#define OPTION_RELAXED_UNIQUE_CHECKS    (1L << 27)
#define SELECT_NO_UNLOCK                (1L << 28)

255 256 257
/* The rest of the file is included in the server only */
#ifndef MYSQL_CLIENT

258 259
/* options for UNION set by the yacc parser (stored in unit->union_option) */
#define UNION_ALL               1
unknown's avatar
unknown committed
260

261
/* Bits for different SQL modes modes (including ANSI mode) */
262 263 264 265
#define MODE_REAL_AS_FLOAT      	1
#define MODE_PIPES_AS_CONCAT    	2
#define MODE_ANSI_QUOTES        	4
#define MODE_IGNORE_SPACE		8
266
#define MODE_NOT_USED			16
267 268
#define MODE_ONLY_FULL_GROUP_BY		32
#define MODE_NO_UNSIGNED_SUBTRACTION	64
269
#define MODE_NO_DIR_IN_CREATE		128
unknown's avatar
unknown committed
270 271 272 273
#define MODE_POSTGRESQL			256
#define MODE_ORACLE			512
#define MODE_MSSQL			1024
#define MODE_DB2			2048
274
#define MODE_MAXDB			4096
unknown's avatar
unknown committed
275 276 277 278 279
#define MODE_NO_KEY_OPTIONS             8192
#define MODE_NO_TABLE_OPTIONS          16384 
#define MODE_NO_FIELD_OPTIONS          32768
#define MODE_MYSQL323                  65536
#define MODE_MYSQL40                   (MODE_MYSQL323*2)
280
#define MODE_ANSI	               (MODE_MYSQL40*2)
281
#define MODE_NO_AUTO_VALUE_ON_ZERO     (MODE_ANSI*2)
282

unknown's avatar
unknown committed
283 284
#define RAID_BLOCK_SIZE 1024

unknown's avatar
unknown committed
285 286
#define MY_CHARSET_BIN_MB_MAXLEN 1

287 288 289
// uncachable cause
#define UNCACHEABLE_DEPENDENT   1
#define UNCACHEABLE_RAND        2
290 291 292
#define UNCACHEABLE_SIDEEFFECT	4
// forcing to save JOIN for explain
#define UNCACHEABLE_EXPLAIN     8
293

294
#ifdef EXTRA_DEBUG
295 296 297 298 299 300 301
/*
  Sync points allow us to force the server to reach a certain line of code
  and block there until the client tells the server it is ok to go on.
  The client tells the server to block with SELECT GET_LOCK()
  and unblocks it with SELECT RELEASE_LOCK(). Used for debugging difficult
  concurrency problems
*/
302 303 304 305 306
#define DBUG_SYNC_POINT(lock_name,lock_timeout) \
 debug_sync_point(lock_name,lock_timeout)
void debug_sync_point(const char* lock_name, uint lock_timeout);
#else
#define DBUG_SYNC_POINT(lock_name,lock_timeout)
307
#endif /* EXTRA_DEBUG */
308

unknown's avatar
unknown committed
309 310 311 312
/* BINLOG_DUMP options */

#define BINLOG_DUMP_NON_BLOCK   1

unknown's avatar
unknown committed
313 314 315 316
/* sql_show.cc:show_log_files() */
#define SHOW_LOG_STATUS_FREE "FREE"
#define SHOW_LOG_STATUS_INUSE "IN USE"

317 318 319
/* Options to add_table_to_list() */
#define TL_OPTION_UPDATING	1
#define TL_OPTION_FORCE_INDEX	2
unknown's avatar
unknown committed
320
#define TL_OPTION_IGNORE_LEAVES 4
321

unknown's avatar
unknown committed
322 323 324 325 326 327 328
/* Some portable defines */

#define portable_sizeof_char_ptr 8

#define tmp_file_prefix "#sql"			/* Prefix for tmp tables */
#define tmp_file_prefix_length 4

329 330 331 332 333
/* Flags for calc_week() function.  */
#define WEEK_MONDAY_FIRST    1
#define WEEK_YEAR            2
#define WEEK_FIRST_WEEKDAY   4

unknown's avatar
unknown committed
334 335 336 337 338 339 340 341 342
struct st_table;
class THD;

/* Struct to handle simple linked lists */

typedef struct st_sql_list {
  uint elements;
  byte *first;
  byte **next;
unknown's avatar
unknown committed
343 344 345 346 347 348 349 350 351 352 353 354 355 356

  inline void empty()
  {
    elements=0;
    first=0;
    next= &first;
  }
  inline void link_in_list(byte *element,byte **next_ptr)
  {
    elements++;
    (*next)=element;
    next= next_ptr;
    *next=0;
  }
357 358 359 360 361 362 363 364 365 366 367
  inline void save_and_clear(struct st_sql_list *save)
  {
    *save= *this;
    empty();
  }
  inline void push_front(struct st_sql_list *save)
  {
    *save->next= first;				/* link current list last */
    first= save->first;
    elements+= save->elements;
  }
unknown's avatar
unknown committed
368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385
} 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 */
386
#include "protocol.h"
unknown's avatar
unknown committed
387 388
#include "sql_udf.h"
#include "item.h"
unknown's avatar
unknown committed
389
typedef Comp_creator* (*chooser_compare_func_creator)(bool invert);
unknown's avatar
unknown committed
390 391
#include "sql_class.h"
#include "opt_range.h"
unknown's avatar
unknown committed
392 393

#ifdef HAVE_QUERY_CACHE
394 395 396
struct Query_cache_query_flags
{
  unsigned int client_long_flag:1;
unknown's avatar
unknown committed
397 398 399
  uint character_set_client_num;
  uint character_set_results_num;
  uint collation_connection_num;
400 401 402
  ha_rows limit;
};
#define QUERY_CACHE_FLAGS_SIZE sizeof(Query_cache_query_flags)
unknown's avatar
unknown committed
403
#include "sql_cache.h"
unknown's avatar
unknown committed
404 405 406 407
#define query_cache_store_query(A, B) query_cache.store_query(A, B)
#define query_cache_destroy() query_cache.destroy()
#define query_cache_result_size_limit(A) query_cache.result_size_limit(A)
#define query_cache_resize(A) query_cache.resize(A)
408
#define query_cache_set_min_res_unit(A) query_cache.set_min_res_unit(A)
unknown's avatar
unknown committed
409 410 411 412 413 414 415
#define query_cache_invalidate3(A, B, C) query_cache.invalidate(A, B, C)
#define query_cache_invalidate1(A) query_cache.invalidate(A)
#define query_cache_send_result_to_client(A, B, C) \
  query_cache.send_result_to_client(A, B, C)
#define query_cache_invalidate_by_MyISAM_filename_ref \
  &query_cache_invalidate_by_MyISAM_filename
#else
416
#define QUERY_CACHE_FLAGS_SIZE 0
unknown's avatar
unknown committed
417 418 419 420
#define query_cache_store_query(A, B)
#define query_cache_destroy()
#define query_cache_result_size_limit(A)
#define query_cache_resize(A)
421
#define query_cache_set_min_res_unit(A)
unknown's avatar
unknown committed
422 423 424 425 426 427 428 429 430
#define query_cache_invalidate3(A, B, C)
#define query_cache_invalidate1(A)
#define query_cache_send_result_to_client(A, B, C) 0
#define query_cache_invalidate_by_MyISAM_filename_ref NULL

#define query_cache_abort(A)
#define query_cache_end_of_result(A)
#define query_cache_invalidate_by_MyISAM_filename_ref NULL
#endif /*HAVE_QUERY_CACHE*/
unknown's avatar
unknown committed
431

unknown's avatar
unknown committed
432 433
#define prepare_execute(A) ((A)->command == COM_EXECUTE)

434
int mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create, bool silent);
435
int mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create);
unknown's avatar
unknown committed
436
int mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent);
437
void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, ushort flags);
438 439
int mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
		   my_bool drop_temporary);
440
int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
441
			 bool drop_temporary, bool log_query);
unknown's avatar
unknown committed
442
int mysql_rm_table_part2_with_lock(THD *thd, TABLE_LIST *tables,
443
				   bool if_exists, bool drop_temporary,
unknown's avatar
unknown committed
444
				   bool log_query);
unknown's avatar
unknown committed
445 446
int quick_rm_table(enum db_type base,const char *db,
		   const char *table_name);
unknown's avatar
unknown committed
447
bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
448
bool mysql_change_db(THD *thd,const char *name);
unknown's avatar
unknown committed
449
void mysql_parse(THD *thd,char *inBuf,uint length);
450
bool is_update_query(enum enum_sql_command command);
451 452
void free_items(Item *item);
bool alloc_query(THD *thd, char *packet, ulong packet_length);
453
void mysql_init_select(LEX *lex);
454
void mysql_init_query(THD *thd, bool lexonly=0);
unknown's avatar
unknown committed
455
bool mysql_new_select(LEX *lex, bool move_down);
456
void create_select_for_variable(const char *var_name);
unknown's avatar
unknown committed
457
void mysql_init_multi_delete(LEX *lex);
unknown's avatar
unknown committed
458
void init_max_user_conn(void);
459
void init_update_queries(void);
unknown's avatar
unknown committed
460
void free_max_user_conn(void);
461 462
extern "C" pthread_handler_decl(handle_one_connection,arg);
extern "C" pthread_handler_decl(handle_bootstrap,arg);
unknown's avatar
unknown committed
463 464
void end_thread(THD *thd,bool put_in_cache);
void flush_thread_cache();
465
int mysql_execute_command(THD *thd);
unknown's avatar
unknown committed
466
bool do_command(THD *thd);
467 468
bool dispatch_command(enum enum_server_command command, THD *thd,
		      char* packet, uint packet_length);
469
bool check_dup(const char *db, const char *name, TABLE_LIST *tables);
470
#ifndef EMBEDDED_LIBRARY
unknown's avatar
unknown committed
471
bool check_stack_overrun(THD *thd,char *dummy);
472 473 474 475
#else
#define check_stack_overrun(A, B) 0
#endif

unknown's avatar
unknown committed
476 477 478 479
void table_cache_init(void);
void table_cache_free(void);
uint cached_tables(void);
void kill_mysql(void);
480
void close_connection(THD *thd, uint errcode, bool lock);
unknown's avatar
unknown committed
481 482 483 484
bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables, 
                          bool *write_to_binlog);
bool check_access(THD *thd, ulong access, const char *db, ulong *save_priv,
		  bool no_grant, bool no_errors);
unknown's avatar
unknown committed
485
bool check_table_access(THD *thd, ulong want_access, TABLE_LIST *tables,
unknown's avatar
unknown committed
486
			bool no_errors);
unknown's avatar
unknown committed
487
bool check_global_access(THD *thd, ulong want_access);
unknown's avatar
unknown committed
488

unknown's avatar
unknown committed
489 490 491
int mysql_backup_table(THD* thd, TABLE_LIST* table_list);
int mysql_restore_table(THD* thd, TABLE_LIST* table_list);

492 493
int mysql_checksum_table(THD* thd, TABLE_LIST* table_list,
		      HA_CHECK_OPT* check_opt);
unknown's avatar
unknown committed
494 495 496 497
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);
498 499 500 501
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);
502 503
int mysql_assign_to_keycache(THD* thd, TABLE_LIST* table_list,
			     LEX_STRING *key_cache_name);
unknown's avatar
unknown committed
504
int mysql_preload_keys(THD* thd, TABLE_LIST* table_list);
unknown's avatar
unknown committed
505 506
int reassign_keycache_tables(THD* thd, KEY_CACHE *src_cache,
                             KEY_CACHE *dst_cache);
unknown's avatar
unknown committed
507

508
bool check_simple_select();
unknown's avatar
unknown committed
509

unknown's avatar
unknown committed
510
SORT_FIELD * make_unireg_sortorder(ORDER *order, uint *length);
511 512 513 514
int setup_order(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
		List<Item> &fields, List <Item> &all_fields, ORDER *order);
int setup_group(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
		List<Item> &fields, List<Item> &all_fields, ORDER *order,
unknown's avatar
unknown committed
515
		bool *hidden_group_fields);
unknown's avatar
unknown committed
516

517
int handle_select(THD *thd, LEX *lex, select_result *result);
518 519 520 521 522
int mysql_select(THD *thd, Item ***rref_pointer_array,
		 TABLE_LIST *tables, uint wild_num,  List<Item> &list,
		 COND *conds, uint og_num, ORDER *order, ORDER *group,
		 Item *having, ORDER *proc_param, ulong select_type, 
		 select_result *result, SELECT_LEX_UNIT *unit, 
523
		 SELECT_LEX *select_lex);
unknown's avatar
unknown committed
524
void free_underlaid_joins(THD *thd, SELECT_LEX *select);
unknown's avatar
unknown committed
525
void fix_tables_pointers(SELECT_LEX *select_lex);
unknown's avatar
unknown committed
526 527
int mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
			select_result *result);
unknown's avatar
unknown committed
528 529
int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
			 select_result *result);
530
int mysql_union(THD *thd, LEX *lex, select_result *result,
531
		SELECT_LEX_UNIT *unit);
532
int mysql_handle_derived(LEX *lex);
unknown's avatar
unknown committed
533
Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
unknown's avatar
unknown committed
534
			Item ***copy_func, Field **from_field,
unknown's avatar
unknown committed
535 536 537 538
			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,
539
		       bool tmp_table, bool no_log, uint select_field_count);
unknown's avatar
unknown committed
540 541 542 543 544 545 546 547 548 549 550 551
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,
552
                      uint order_num, ORDER *order,
553 554
		      enum enum_duplicates handle_duplicates,
		      enum enum_enable_or_disable keys_onoff=LEAVE_AS_IS,
unknown's avatar
unknown committed
555
		      enum tablespace_op_type tablespace_op=NO_TABLESPACE_OP,
556
		      bool simple_alter=0);
unknown's avatar
unknown committed
557 558 559
int mysql_create_like_table(THD *thd, TABLE_LIST *table,
                            HA_CREATE_INFO *create_info,
                            Table_ident *src_table);
unknown's avatar
unknown committed
560 561 562 563 564
bool mysql_rename_table(enum db_type base,
			const char *old_db,
			const char * old_name,
			const char *new_db,
			const char * new_name);
unknown's avatar
unknown committed
565 566 567 568
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,
569
		 List<Item> &values,COND *conds,
570
                 uint order_num, ORDER *order, ha_rows limit,
unknown's avatar
unknown committed
571
		 enum enum_duplicates handle_duplicates);
unknown's avatar
unknown committed
572 573 574
int mysql_multi_update(THD *thd, TABLE_LIST *table_list,
		       List<Item> *fields, List<Item> *values,
		       COND *conds, ulong options,
unknown's avatar
unknown committed
575 576
		       enum enum_duplicates handle_duplicates,
		       SELECT_LEX_UNIT *unit, SELECT_LEX *select_lex);
unknown's avatar
unknown committed
577
int mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
578 579
		 List<List_item> &values, List<Item> &update_fields,
		 List<Item> &update_values, enum_duplicates flag);
unknown's avatar
unknown committed
580
void kill_delayed_threads(void);
581
int mysql_delete(THD *thd, TABLE_LIST *table, COND *conds, SQL_LIST *order,
unknown's avatar
unknown committed
582
                 ha_rows rows, ulong options);
583
int mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok=0);
unknown's avatar
unknown committed
584 585 586
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);
587
TABLE *reopen_name_locked_table(THD* thd, TABLE_LIST* table);
unknown's avatar
unknown committed
588 589 590
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);
unknown's avatar
unknown committed
591 592
void close_old_data_files(THD *thd, TABLE *table, bool abort_locks,
			  bool send_refresh);
unknown's avatar
unknown committed
593 594
bool close_data_tables(THD *thd,const char *db, const char *table_name);
bool wait_for_tables(THD *thd);
unknown's avatar
unknown committed
595
bool table_is_used(TABLE *table, bool wait_for_name_lock);
unknown's avatar
unknown committed
596 597
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);
598 599
void execute_init_command(THD *thd, sys_var_str *init_command_var,
			  rw_lock_t *var_mutex);
600
extern const Field *not_found_field;
601
Field *find_field_in_tables(THD *thd, Item_ident *item, TABLE_LIST *tables,
602
			    TABLE_LIST **where, bool report_error);
unknown's avatar
unknown committed
603 604
Field *find_field_in_table(THD *thd,TABLE *table,const char *name,uint length,
			   bool check_grant,bool allow_rowid);
unknown's avatar
unknown committed
605
#ifdef HAVE_OPENSSL
606
#include <openssl/des.h>
607 608
struct st_des_keyblock
{
unknown's avatar
unknown committed
609
  DES_cblock key1, key2, key3;
unknown's avatar
unknown committed
610 611 612
};
struct st_des_keyschedule
{
613
  DES_key_schedule ks1, ks2, ks3;
unknown's avatar
unknown committed
614
};
unknown's avatar
unknown committed
615
extern char *des_key_file;
unknown's avatar
unknown committed
616
extern struct st_des_keyschedule des_keyschedule[10];
unknown's avatar
unknown committed
617
extern uint des_default_key;
unknown's avatar
unknown committed
618 619
extern pthread_mutex_t LOCK_des_key_file;
bool load_des_key_file(const char *file_name);
unknown's avatar
unknown committed
620
void free_des_key_file();
unknown's avatar
unknown committed
621
#endif /* HAVE_OPENSSL */
unknown's avatar
unknown committed
622

unknown's avatar
unknown committed
623 624 625
/* sql_do.cc */
int mysql_do(THD *thd, List<Item> &values);

unknown's avatar
unknown committed
626
/* sql_show.cc */
unknown's avatar
unknown committed
627
int mysqld_show_dbs(THD *thd,const char *wild);
628
int mysqld_show_open_tables(THD *thd,const char *wild);
unknown's avatar
unknown committed
629 630
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);
unknown's avatar
unknown committed
631 632
int mysqld_show_fields(THD *thd,TABLE_LIST *table, const char *wild,
		       bool verbose);
unknown's avatar
unknown committed
633
int mysqld_show_keys(THD *thd, TABLE_LIST *table);
unknown's avatar
unknown committed
634
int mysqld_show_logs(THD *thd);
635 636
void append_identifier(THD *thd, String *packet, const char *name,
		       uint length);
unknown's avatar
unknown committed
637 638 639
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);
640
int mysqld_show_create_db(THD *thd, char *dbname, HA_CREATE_INFO *create);
unknown's avatar
unknown committed
641 642 643 644

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);
645
int mysqld_show(THD *thd, const char *wild, show_var_st *variables,
646 647
		enum enum_var_type value_type,
		pthread_mutex_t *mutex);
648
int mysqld_show_charsets(THD *thd,const char *wild);
649
int mysqld_show_collations(THD *thd,const char *wild);
unknown's avatar
unknown committed
650
int mysqld_show_storage_engines(THD *thd);
unknown's avatar
unknown committed
651 652
int mysqld_show_privileges(THD *thd);
int mysqld_show_column_types(THD *thd);
unknown's avatar
unknown committed
653
int mysqld_help (THD *thd, const char *text);
unknown's avatar
unknown committed
654 655

/* sql_prepare.cc */
656 657
bool mysql_stmt_prepare(THD *thd, char *packet, uint packet_length);
void mysql_stmt_execute(THD *thd, char *packet);
unknown's avatar
unknown committed
658
void mysql_stmt_free(THD *thd, char *packet);
659
void mysql_stmt_reset(THD *thd, char *packet);
660
void mysql_stmt_get_longdata(THD *thd, char *pos, ulong packet_length);
unknown's avatar
unknown committed
661 662
int check_insert_fields(THD *thd,TABLE *table,List<Item> &fields,
			List<Item> &values, ulong counter);
unknown's avatar
unknown committed
663
void setup_param_functions(Item_param *param, uchar param_type);
unknown's avatar
unknown committed
664 665

/* sql_error.cc */
666 667
MYSQL_ERROR *push_warning(THD *thd, MYSQL_ERROR::enum_warning_level level, uint code,
                          const char *msg);
668 669
void push_warning_printf(THD *thd, MYSQL_ERROR::enum_warning_level level,
			 uint code, const char *format, ...);
670
void mysql_reset_errors(THD *thd);
671
my_bool mysqld_show_warnings(THD *thd, ulong levels_to_show);
unknown's avatar
unknown committed
672

673 674
/* sql_handler.cc */
int mysql_ha_open(THD *thd, TABLE_LIST *tables);
675
int mysql_ha_close(THD *thd, TABLE_LIST *tables, bool dont_send_ok=0);
676
int mysql_ha_closeall(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
677 678
int mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
               List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
679

unknown's avatar
unknown committed
680 681
/* sql_base.cc */
void set_item_name(Item *item,char *pos,uint length);
unknown's avatar
unknown committed
682
bool add_field_to_list(THD *thd, char *field_name, enum enum_field_types type,
unknown's avatar
unknown committed
683
		       char *length, char *decimal,
684
		       uint type_modifier,
unknown's avatar
unknown committed
685 686
		       Item *default_value,
		       LEX_STRING *comment,
unknown's avatar
unknown committed
687 688
		       char *change, TYPELIB *interval,CHARSET_INFO *cs,
		       uint uint_geom_type);
unknown's avatar
unknown committed
689
void store_position_for_column(const char *name);
unknown's avatar
unknown committed
690
bool add_to_list(THD *thd, SQL_LIST &list,Item *group,bool asc=0);
unknown's avatar
unknown committed
691 692
void add_join_on(TABLE_LIST *b,Item *expr);
void add_join_natural(TABLE_LIST *a,TABLE_LIST *b);
unknown's avatar
unknown committed
693
bool add_proc_to_list(THD *thd, Item *item);
unknown's avatar
unknown committed
694 695 696 697
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);
698 699 700
enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
				  IGNORE_ERRORS};
extern const Item **not_found_item;
701
Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
702
			  find_item_error_report_type report_error);
703
bool get_key_map_from_key_list(key_map *map, TABLE *table,
704
                               List<String> *index_list);
705
bool insert_fields(THD *thd,TABLE_LIST *tables,
706 707
		   const char *db_name, const char *table_name,
		   List_iterator<Item> *it);
708
bool setup_tables(TABLE_LIST *tables, my_bool reinit);
709 710 711
int setup_wild(THD *thd, TABLE_LIST *tables, List<Item> &fields,
	       List<Item> *sum_func_list, uint wild_num);
int setup_fields(THD *thd, Item** ref_pointer_array, TABLE_LIST *tables,
712
		 List<Item> &item, bool set_query_id,
713
		 List<Item> *sum_func_list, bool allow_sum_func);
unknown's avatar
unknown committed
714
int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds);
715 716
int setup_ftfuncs(SELECT_LEX* select);
int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
unknown's avatar
unknown committed
717
void wait_for_refresh(THD *thd);
unknown's avatar
unknown committed
718
int open_tables(THD *thd, TABLE_LIST *tables, uint *counter);
719
int simple_open_n_lock_tables(THD *thd,TABLE_LIST *tables);
unknown's avatar
unknown committed
720
int open_and_lock_tables(THD *thd,TABLE_LIST *tables);
unknown's avatar
unknown committed
721
int lock_tables(THD *thd, TABLE_LIST *tables, uint counter);
unknown's avatar
unknown committed
722 723 724 725 726
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);
void free_io_cache(TABLE *entry);
void intern_close_table(TABLE *entry);
727
bool close_thread_table(THD *thd, TABLE **table_ptr);
728
void close_thread_tables(THD *thd, bool locked=0, bool skip_derived=0);
unknown's avatar
unknown committed
729
void close_temporary_tables(THD *thd);
730 731
TABLE_LIST * find_table_in_list(TABLE_LIST *table,
				const char *db_name, const char *table_name);
732 733 734
TABLE_LIST * find_real_table_in_list(TABLE_LIST *table,
				     const char *db_name,
				     const char *table_name);
unknown's avatar
unknown committed
735 736 737
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);
738
bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
unknown's avatar
unknown committed
739 740 741
			    const char *table_name);
void remove_db_from_cache(const my_string db);
void flush_tables();
742 743
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
			     bool return_if_owned_by_thd=0);
unknown's avatar
unknown committed
744
bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);
unknown's avatar
unknown committed
745
void copy_field_from_tmp_record(Field *field,int offset);
746 747
int fill_record(List<Item> &fields,List<Item> &values, bool ignore_errors);
int fill_record(Field **field,List<Item> &values, bool ignore_errors);
748
OPEN_TABLE_LIST *list_open_tables(THD *thd, const char *wild);
unknown's avatar
unknown committed
749 750 751 752 753 754 755 756 757

/* 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);
758 759 760 761

/* sql_manager.cc */
/* bits set in manager_status */
#define MANAGER_BERKELEY_LOG_CLEANUP    (1L << 0)
762
extern ulong volatile manager_status;
763
extern bool volatile manager_thread_in_use, mqh_used;
764
extern pthread_t manager_thread;
765
extern "C" pthread_handler_decl(handle_manager, arg);
766

unknown's avatar
unknown committed
767 768 769 770
/* sql_test.cc */
#ifndef DBUG_OFF
void print_where(COND *cond,const char *info);
void print_cached_tables(void);
771
void TEST_filesort(SORT_FIELD *sortorder,uint s_length);
unknown's avatar
unknown committed
772 773 774 775 776 777 778 779 780
#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);
781
bool init_errmessage(void);
unknown's avatar
unknown committed
782 783 784 785

void sql_perror(const char *message);
void sql_print_error(const char *format,...)
	        __attribute__ ((format (printf, 1, 2)));
786 787
bool fn_format_relative_to_data_home(my_string to, const char *name,
				     const char *dir, const char *extension);
788 789 790
bool open_log(MYSQL_LOG *log, const char *hostname,
	      const char *opt_name, const char *extension,
	      const char *index_file_name,
791 792
	      enum_log_type type, bool read_append,
	      bool no_auto_events, ulong max_size);
unknown's avatar
unknown committed
793

794 795 796
/* mysqld.cc */
extern void yyerror(const char*);

797 798 799 800 801 802 803
/* strfunc.cc */
ulonglong find_set(TYPELIB *typelib,const char *x, uint length,
		   char **err_pos, uint *err_len, bool *set_warning);
uint find_type(TYPELIB *lib, const char *find, uint length, bool part_match);
uint check_word(TYPELIB *lib, const char *val, const char *end,
		const char **end_of_word);

804 805
bool is_keyword(const char *name, uint len);

unknown's avatar
unknown committed
806 807 808 809
/* sql_parse.cc */
void free_items(Item *item);
void cleanup_items(Item *item);

810 811
#define MY_DB_OPT_FILE "db.opt"
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
unknown's avatar
unknown committed
812

unknown's avatar
unknown committed
813 814 815 816 817
/*
  External variables
*/

extern time_t start_time;
unknown's avatar
unknown committed
818
extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
819
	    mysql_real_data_home[], *opt_mysql_tmpdir, mysql_charsets_dir[];
unknown's avatar
unknown committed
820 821
#define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list))
extern MY_TMPDIR mysql_tmpdir_list;
unknown's avatar
unknown committed
822
extern const char *command_name[];
unknown's avatar
unknown committed
823
extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
unknown's avatar
unknown committed
824 825
extern const char **errmesg;			/* Error messages */
extern const char *myisam_recover_options_str;
826
extern const char *in_left_expr_name, *in_additional_cond;
unknown's avatar
unknown committed
827 828 829 830 831 832
extern Eq_creator eq_creator;
extern Ne_creator ne_creator;
extern Gt_creator gt_creator;
extern Lt_creator lt_creator;
extern Ge_creator ge_creator;
extern Le_creator le_creator;
unknown's avatar
unknown committed
833 834 835 836
extern uchar *days_in_month;
extern char language[LIBLEN],reg_ext[FN_EXTLEN];
extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
extern char pidfile_name[FN_REFLEN], time_zone[30], *opt_init_file;
unknown's avatar
unknown committed
837
extern char log_error_file[FN_REFLEN];
unknown's avatar
unknown committed
838
extern double log_10[32];
839
extern ulonglong keybuff_size;
unknown's avatar
unknown committed
840 841 842 843 844 845 846
extern ulong refresh_version,flush_version, thread_id,query_id,opened_tables;
extern ulong created_tmp_tables, created_tmp_disk_tables;
extern ulong aborted_threads,aborted_connects;
extern ulong delayed_insert_timeout;
extern ulong delayed_insert_limit, delayed_queue_size;
extern ulong delayed_insert_threads, delayed_insert_writes;
extern ulong delayed_rows_in_use,delayed_insert_errors;
847
extern ulong filesort_rows, filesort_range_count, filesort_scan_count;
848
extern ulong filesort_merge_passes;
849
extern ulong select_range_check_count, select_range_count, select_scan_count;
unknown's avatar
unknown committed
850
extern ulong select_full_range_join_count,select_full_join_count;
851 852
extern ulong slave_open_temp_tables;
extern ulong query_cache_size, query_cache_min_res_unit;
unknown's avatar
unknown committed
853
extern ulong thd_startup_options, slow_launch_threads, slow_launch_time;
854
extern ulong server_id, concurrency;
unknown's avatar
unknown committed
855 856 857 858
extern ulong ha_read_count, ha_write_count, ha_delete_count, ha_update_count;
extern ulong ha_read_key_count, ha_read_next_count, ha_read_prev_count;
extern ulong ha_read_first_count, ha_read_last_count;
extern ulong ha_read_rnd_count, ha_read_rnd_next_count;
859
extern ulong ha_commit_count, ha_rollback_count,table_cache_size;
unknown's avatar
unknown committed
860
extern ulong max_connections,max_connect_errors, connect_timeout;
unknown's avatar
unknown committed
861
extern ulong slave_net_timeout;
unknown's avatar
unknown committed
862
extern ulong max_insert_delayed_threads, max_user_connections;
863
extern ulong long_query_count, what_to_log,flush_time;
unknown's avatar
unknown committed
864 865
extern ulong query_buff_size, thread_stack,thread_stack_min;
extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;
866 867
extern ulong max_binlog_size, max_relay_log_size;
extern ulong rpl_recovery_rank, thread_cache_size;
unknown's avatar
unknown committed
868 869
extern ulong com_stat[(uint) SQLCOM_END], com_other, back_log;
extern ulong specialflag, current_pid;
870
extern ulong expire_logs_days;
871
extern my_bool relay_log_purge;
unknown's avatar
unknown committed
872
extern uint test_flags,select_errors,ha_open_options;
873
extern uint protocol_version, mysqld_port, dropping_tables;
874
extern uint delay_key_write_options;
unknown's avatar
unknown committed
875
extern bool opt_endinfo, using_udf_functions, locked_in_memory;
876
extern bool opt_using_transactions, mysql_embedded;
unknown's avatar
unknown committed
877
extern bool using_update_log, opt_large_files;
878
extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
879
extern bool opt_disable_networking, opt_skip_show_db;
unknown's avatar
unknown committed
880 881
extern bool volatile abort_loop, shutdown_in_progress, grant_option;
extern uint volatile thread_count, thread_running, global_read_lock;
882
extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
unknown's avatar
unknown committed
883
extern my_bool opt_safe_show_db, opt_local_infile, lower_case_table_names;
884
extern my_bool opt_slave_compressed_protocol, use_temp_pool;
885
extern my_bool opt_readonly;
886
extern my_bool opt_enable_named_pipe;
887
extern my_bool opt_secure_auth;
888
extern char *shared_memory_base_name, *mysqld_unix_port;
889
extern bool opt_enable_shared_memory;
unknown's avatar
unknown committed
890

unknown's avatar
unknown committed
891
extern MYSQL_LOG mysql_log,mysql_update_log,mysql_slow_log,mysql_bin_log;
892
extern FILE *bootstrap_file;
unknown's avatar
unknown committed
893 894 895
extern pthread_key(MEM_ROOT*,THR_MALLOC);
extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
       LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
896
       LOCK_error_log, LOCK_delayed_insert,
unknown's avatar
unknown committed
897
       LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
898
       LOCK_slave_list, LOCK_active_mi, LOCK_manager,
899
       LOCK_global_system_variables, LOCK_user_conn;
unknown's avatar
unknown committed
900
extern rw_lock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
901
extern pthread_cond_t COND_refresh, COND_thread_count, COND_manager;
unknown's avatar
unknown committed
902
extern pthread_attr_t connection_attrib;
unknown's avatar
unknown committed
903
extern I_List<THD> threads;
904
extern I_List<NAMED_LIST> key_caches;
905
extern MY_BITMAP temp_pool;
unknown's avatar
SCRUM  
unknown committed
906
extern String my_empty_string;
907
extern const String my_null_string;
unknown's avatar
unknown committed
908
extern SHOW_VAR init_vars[],status_vars[], internal_vars[];
unknown's avatar
unknown committed
909 910 911
extern SHOW_COMP_OPTION have_isam;
extern SHOW_COMP_OPTION have_innodb;
extern SHOW_COMP_OPTION have_berkeley_db;
912
extern struct system_variables global_system_variables;
unknown's avatar
unknown committed
913
extern struct system_variables max_system_variables;
914
extern struct rand_struct sql_rand;
unknown's avatar
unknown committed
915
extern KEY_CACHE *sql_key_cache;
unknown's avatar
unknown committed
916

917 918
extern const char *opt_date_time_formats[];
extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
919

unknown's avatar
unknown committed
920
extern String null_string;
921 922 923 924 925
extern HASH open_cache;
extern TABLE *unused_tables;
extern I_List<i_string> binlog_do_db, binlog_ignore_db;
extern const char* any_db;
extern struct my_option my_long_options[];
unknown's avatar
unknown committed
926

unknown's avatar
unknown committed
927 928 929 930
/* optional things, have_* variables */

extern SHOW_COMP_OPTION have_isam, have_innodb, have_berkeley_db;
extern SHOW_COMP_OPTION have_raid, have_openssl, have_symlink;
931
extern SHOW_COMP_OPTION have_query_cache, have_berkeley_db, have_innodb;
unknown's avatar
unknown committed
932
extern SHOW_COMP_OPTION have_crypt;
unknown's avatar
unknown committed
933
extern SHOW_COMP_OPTION have_compress;
934

unknown's avatar
unknown committed
935 936 937 938
#ifndef __WIN__
extern pthread_t signal_thread;
#endif

939 940 941 942
#ifdef HAVE_OPENSSL
extern struct st_VioSSLAcceptorFd * ssl_acceptor_fd;
#endif /* HAVE_OPENSSL */

unknown's avatar
unknown committed
943 944 945 946 947 948
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);
949
void mysql_lock_abort_for_thread(THD *thd, TABLE *table);
unknown's avatar
unknown committed
950
MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
951 952 953 954
bool lock_global_read_lock(THD *thd);
void unlock_global_read_lock(THD *thd);
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh);
void start_waiting_global_read_lock(THD *thd);
unknown's avatar
unknown committed
955

unknown's avatar
unknown committed
956
/* Lock based on name */
957
int lock_and_wait_for_table_name(THD *thd, TABLE_LIST *table_list);
unknown's avatar
unknown committed
958 959 960
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);
961 962 963
bool lock_table_names(THD *thd, TABLE_LIST *table_list);
void unlock_table_names(THD *thd, TABLE_LIST *table_list,
			TABLE_LIST *last_table= 0);
unknown's avatar
unknown committed
964

unknown's avatar
unknown committed
965 966 967 968

/* old unireg functions */

void unireg_init(ulong options);
969
void unireg_end(void);
970
int rea_create_table(THD *thd, my_string file_name,HA_CREATE_INFO *create_info,
unknown's avatar
unknown committed
971 972 973 974 975
		     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,
976
	    uint ha_open_flags, TABLE *outparam);
unknown's avatar
unknown committed
977 978 979 980 981 982 983 984 985 986 987 988
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);
989
long my_gmt_sec(TIME *, long *current_timezone);
990 991 992
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, uint fuzzy_date);
unknown's avatar
unknown committed
993
timestamp_type str_to_TIME(const char *str, uint length, TIME *l_time,
994
			   uint flags);
995
void localtime_to_TIME(TIME *to, struct tm *from);
unknown's avatar
unknown committed
996
void calc_time_from_sec(TIME *to, long seconds, long microseconds);
unknown's avatar
unknown committed
997

998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009
extern DATE_TIME_FORMAT *date_time_format_make(timestamp_type format_type,
					       const char *format_str,
					       uint format_length);
extern DATE_TIME_FORMAT *date_time_format_copy(THD *thd,
					       DATE_TIME_FORMAT *format);
const char *get_date_time_format_str(KNOWN_DATE_TIME_FORMAT *format,
				     timestamp_type type);
extern bool make_date_time(DATE_TIME_FORMAT *format, TIME *l_time,
			   timestamp_type type, String *str);
extern void make_time(DATE_TIME_FORMAT *format, TIME *l_time, String *str);
void make_date(DATE_TIME_FORMAT *format, TIME *l_time, String *str);
void make_datetime(DATE_TIME_FORMAT *format, TIME *l_time, String *str);
1010

unknown's avatar
unknown committed
1011 1012
int test_if_number(char *str,int *res,bool allow_wildcards);
void change_byte(byte *,uint,char,char);
1013
#ifndef EMBEDDED_LIBRARY
1014
extern "C" void unireg_abort(int exit_code);
1015 1016 1017
#else
#define unireg_abort(exit_code) DBUG_RETURN(exit_code)
#endif
unknown's avatar
unknown committed
1018 1019
void init_read_record(READ_RECORD *info, THD *thd, TABLE *reg_form,
		      SQL_SELECT *select,
1020
		      int use_record_cache, bool print_errors);
unknown's avatar
unknown committed
1021
void end_read_record(READ_RECORD *info);
1022 1023 1024
ha_rows filesort(THD *thd, TABLE *form,struct st_sort_field *sortorder,
		 uint s_length, SQL_SELECT *select,
		 ha_rows max_rows, ha_rows *examined_rows);
unknown's avatar
unknown committed
1025
void filesort_free_buffers(TABLE *table);
unknown's avatar
unknown committed
1026 1027 1028
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);
1029
uint calc_week(TIME *l_time, uint week_behaviour, uint *year);
unknown's avatar
unknown committed
1030 1031 1032 1033 1034 1035 1036
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);
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);
1037
void append_unescaped(String *res, const char *pos, uint length);
unknown's avatar
unknown committed
1038 1039 1040 1041
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);
1042
bool check_db_name(char *db);
unknown's avatar
unknown committed
1043 1044
bool check_column_name(const char *name);
bool check_table_name(const char *name, uint length);
1045
char *get_field(MEM_ROOT *mem, Field *field);
unknown's avatar
unknown committed
1046
bool get_field(MEM_ROOT *mem, Field *field, class String *res);
1047
int wild_case_compare(CHARSET_INFO *cs, const char *str,const char *wildstr);
unknown's avatar
unknown committed
1048

unknown's avatar
unknown committed
1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
/* 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);
unknown's avatar
unknown committed
1059
/* sql_cache.cc */
unknown's avatar
unknown committed
1060 1061 1062 1063
extern bool sql_cache_init();
extern void sql_cache_free();
extern int sql_cache_hit(THD *thd, char *inBuf, uint length);

unknown's avatar
unknown committed
1064
/* item.cc */
1065 1066 1067 1068
Item *get_system_var(THD *thd, enum_var_type var_type, LEX_STRING name,
		     LEX_STRING component);
Item *get_system_var(THD *thd, enum_var_type var_type, const char *var_name,
		     uint length, const char *item_name);
unknown's avatar
unknown committed
1069 1070
/* log.cc */
bool flush_error_log(void);
unknown's avatar
unknown committed
1071

1072 1073 1074 1075
/* sql_list.cc */
void free_list(I_List <i_string_pair> *list);
void free_list(I_List <i_string> *list);

1076 1077 1078 1079 1080 1081 1082 1083
/* sql_yacc.cc */
extern int yyparse(void *thd);

/* frm_crypt.cc */
#ifdef HAVE_CRYPTED_FRM
SQL_CRYPT *get_crypt_for_frm(void);
#endif

unknown's avatar
unknown committed
1084 1085
/* Some inline functions for more speed */

unknown's avatar
unknown committed
1086
inline bool add_item_to_list(THD *thd, Item *item)
unknown's avatar
unknown committed
1087
{
unknown's avatar
unknown committed
1088
  return thd->lex->current_select->add_item_to_list(thd, item);
unknown's avatar
unknown committed
1089
}
unknown's avatar
unknown committed
1090 1091

inline bool add_value_to_list(THD *thd, Item *value)
unknown's avatar
unknown committed
1092
{
unknown's avatar
unknown committed
1093
  return thd->lex->value_list.push_back(value);
unknown's avatar
unknown committed
1094
}
unknown's avatar
unknown committed
1095 1096

inline bool add_order_to_list(THD *thd, Item *item, bool asc)
unknown's avatar
unknown committed
1097
{
unknown's avatar
unknown committed
1098
  return thd->lex->current_select->add_order_to_list(thd, item, asc);
unknown's avatar
unknown committed
1099
}
unknown's avatar
unknown committed
1100 1101

inline bool add_group_to_list(THD *thd, Item *item, bool asc)
unknown's avatar
unknown committed
1102
{
unknown's avatar
unknown committed
1103
  return thd->lex->current_select->add_group_to_list(thd, item, asc);
unknown's avatar
unknown committed
1104
}
unknown's avatar
unknown committed
1105

unknown's avatar
unknown committed
1106 1107 1108
inline void mark_as_null_row(TABLE *table)
{
  table->null_row=1;
1109
  table->status|=STATUS_NULL_ROW;
unknown's avatar
unknown committed
1110 1111
  bfill(table->null_flags,table->null_bytes,255);
}
unknown's avatar
unknown committed
1112

1113 1114 1115
inline void table_case_convert(char * name, uint length)
{
  if (lower_case_table_names)
unknown's avatar
unknown committed
1116 1117 1118
    my_casedn(files_charset_info, name, length);
}

unknown's avatar
unknown committed
1119 1120 1121 1122 1123 1124
Comp_creator *comp_eq_creator(bool invert);
Comp_creator *comp_ge_creator(bool invert);
Comp_creator *comp_gt_creator(bool invert);
Comp_creator *comp_le_creator(bool invert);
Comp_creator *comp_lt_creator(bool invert);
Comp_creator *comp_ne_creator(bool invert);
unknown's avatar
unknown committed
1125

unknown's avatar
unknown committed
1126 1127 1128 1129 1130
Item * all_any_subquery_creator(Item *left_expr,
				chooser_compare_func_creator cmp,
				bool all,
				SELECT_LEX *select_lex);

unknown's avatar
unknown committed
1131 1132 1133 1134 1135 1136 1137 1138 1139
/*
  clean/setup table fields and map

  SYNOPSYS
    setup_table_map()
    table - TABLE structure pointer (which should be setup)
    table_list TABLE_LIST structure pointer (owner of TABLE)
    tablenr - table number
*/
unknown's avatar
unknown committed
1140

unknown's avatar
unknown committed
1141 1142 1143 1144
inline void setup_table_map(TABLE *table, TABLE_LIST *table_list, uint tablenr)
{
  table->used_fields= 0;
  table->const_table= 0;
unknown's avatar
unknown committed
1145
  table->null_row= 0;
unknown's avatar
unknown committed
1146 1147 1148 1149 1150 1151 1152
  table->status= STATUS_NO_RECORD;
  table->keys_in_use_for_query= table->keys_in_use;
  table->maybe_null= test(table->outer_join= table_list->outer_join);
  table->tablenr= tablenr;
  table->map= (table_map) 1 << tablenr;
  table->force_index= table_list->force_index;
}
1153

unknown's avatar
SCRUM  
unknown committed
1154 1155 1156 1157 1158 1159 1160 1161
typedef struct st_sym_group {
  const char *name;
  const char *needed_define;
} SYM_GROUP;

extern SYM_GROUP sym_group_common;
extern SYM_GROUP sym_group_geom;
extern SYM_GROUP sym_group_rtree;
unknown's avatar
unknown committed
1162

1163
#endif /* MYSQL_CLIENT */