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Diffstat (limited to 'dep/mysqllite/include/myisam.h')
| -rw-r--r-- | dep/mysqllite/include/myisam.h | 518 |
1 files changed, 0 insertions, 518 deletions
diff --git a/dep/mysqllite/include/myisam.h b/dep/mysqllite/include/myisam.h deleted file mode 100644 index e502daa2f17..00000000000 --- a/dep/mysqllite/include/myisam.h +++ /dev/null @@ -1,518 +0,0 @@ -/* Copyright (C) 2000 MySQL AB - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - -/* This file should be included when using myisam_funktions */ - -#ifndef _myisam_h -#define _myisam_h -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef _my_base_h -#include <my_base.h> -#endif -#ifndef _m_ctype_h -#include <m_ctype.h> -#endif -#ifndef _keycache_h -#include "keycache.h" -#endif -#include "my_handler.h" -#include <mysql/plugin.h> - -/* - Limit max keys according to HA_MAX_POSSIBLE_KEY -*/ - -#if MAX_INDEXES > HA_MAX_POSSIBLE_KEY -#define MI_MAX_KEY HA_MAX_POSSIBLE_KEY /* Max allowed keys */ -#else -#define MI_MAX_KEY MAX_INDEXES /* Max allowed keys */ -#endif - -#define MI_MAX_POSSIBLE_KEY_BUFF HA_MAX_POSSIBLE_KEY_BUFF -/* - The following defines can be increased if necessary. - But beware the dependency of MI_MAX_POSSIBLE_KEY_BUFF and MI_MAX_KEY_LENGTH. -*/ -#define MI_MAX_KEY_LENGTH 1000 /* Max length in bytes */ -#define MI_MAX_KEY_SEG 16 /* Max segments for key */ - -#define MI_MAX_KEY_BUFF (MI_MAX_KEY_LENGTH+MI_MAX_KEY_SEG*6+8+8) -#define MI_MAX_MSG_BUF 1024 /* used in CHECK TABLE, REPAIR TABLE */ -#define MI_NAME_IEXT ".MYI" -#define MI_NAME_DEXT ".MYD" - -/* Possible values for myisam_block_size (must be power of 2) */ -#define MI_KEY_BLOCK_LENGTH 1024 /* default key block length */ -#define MI_MIN_KEY_BLOCK_LENGTH 1024 /* Min key block length */ -#define MI_MAX_KEY_BLOCK_LENGTH 16384 - -/* - In the following macros '_keyno_' is 0 .. keys-1. - If there can be more keys than bits in the key_map, the highest bit - is for all upper keys. They cannot be switched individually. - This means that clearing of high keys is ignored, setting one high key - sets all high keys. -*/ -#define MI_KEYMAP_BITS (8 * SIZEOF_LONG_LONG) -#define MI_KEYMAP_HIGH_MASK (ULL(1) << (MI_KEYMAP_BITS - 1)) -#define mi_get_mask_all_keys_active(_keys_) \ - (((_keys_) < MI_KEYMAP_BITS) ? \ - ((ULL(1) << (_keys_)) - ULL(1)) : \ - (~ ULL(0))) - -#if MI_MAX_KEY > MI_KEYMAP_BITS - -#define mi_is_key_active(_keymap_,_keyno_) \ - (((_keyno_) < MI_KEYMAP_BITS) ? \ - test((_keymap_) & (ULL(1) << (_keyno_))) : \ - test((_keymap_) & MI_KEYMAP_HIGH_MASK)) -#define mi_set_key_active(_keymap_,_keyno_) \ - (_keymap_)|= (((_keyno_) < MI_KEYMAP_BITS) ? \ - (ULL(1) << (_keyno_)) : \ - MI_KEYMAP_HIGH_MASK) -#define mi_clear_key_active(_keymap_,_keyno_) \ - (_keymap_)&= (((_keyno_) < MI_KEYMAP_BITS) ? \ - (~ (ULL(1) << (_keyno_))) : \ - (~ (ULL(0))) /*ignore*/ ) - -#else - -#define mi_is_key_active(_keymap_,_keyno_) \ - test((_keymap_) & (ULL(1) << (_keyno_))) -#define mi_set_key_active(_keymap_,_keyno_) \ - (_keymap_)|= (ULL(1) << (_keyno_)) -#define mi_clear_key_active(_keymap_,_keyno_) \ - (_keymap_)&= (~ (ULL(1) << (_keyno_))) - -#endif - -#define mi_is_any_key_active(_keymap_) \ - test((_keymap_)) -#define mi_is_all_keys_active(_keymap_,_keys_) \ - ((_keymap_) == mi_get_mask_all_keys_active(_keys_)) -#define mi_set_all_keys_active(_keymap_,_keys_) \ - (_keymap_)= mi_get_mask_all_keys_active(_keys_) -#define mi_clear_all_keys_active(_keymap_) \ - (_keymap_)= 0 -#define mi_intersect_keys_active(_to_,_from_) \ - (_to_)&= (_from_) -#define mi_is_any_intersect_keys_active(_keymap1_,_keys_,_keymap2_) \ - ((_keymap1_) & (_keymap2_) & \ - mi_get_mask_all_keys_active(_keys_)) -#define mi_copy_keys_active(_to_,_maxkeys_,_from_) \ - (_to_)= (mi_get_mask_all_keys_active(_maxkeys_) & \ - (_from_)) - - /* Param to/from mi_info */ - -typedef struct st_mi_isaminfo /* Struct from h_info */ -{ - ha_rows records; /* Records in database */ - ha_rows deleted; /* Deleted records in database */ - my_off_t recpos; /* Pos for last used record */ - my_off_t newrecpos; /* Pos if we write new record */ - my_off_t dupp_key_pos; /* Position to record with dupp key */ - my_off_t data_file_length, /* Length of data file */ - max_data_file_length, - index_file_length, - max_index_file_length, - delete_length; - ulong reclength; /* Recordlength */ - ulong mean_reclength; /* Mean recordlength (if packed) */ - ulonglong auto_increment; - ulonglong key_map; /* Which keys are used */ - char *data_file_name, *index_file_name; - uint keys; /* Number of keys in use */ - uint options; /* HA_OPTION_... used */ - int errkey, /* With key was dupplicated on err */ - sortkey; /* clustered by this key */ - File filenr; /* (uniq) filenr for datafile */ - time_t create_time; /* When table was created */ - time_t check_time; - time_t update_time; - uint reflength; - ulong record_offset; - ulong *rec_per_key; /* for sql optimizing */ -} MI_ISAMINFO; - - -typedef struct st_mi_create_info -{ - const char *index_file_name, *data_file_name; /* If using symlinks */ - ha_rows max_rows; - ha_rows reloc_rows; - ulonglong auto_increment; - ulonglong data_file_length; - ulonglong key_file_length; - uint old_options; - uint8 language; - my_bool with_auto_increment; -} MI_CREATE_INFO; - -struct st_myisam_info; /* For referense */ -struct st_mi_isam_share; -typedef struct st_myisam_info MI_INFO; -struct st_mi_s_param; - -typedef struct st_mi_keydef /* Key definition with open & info */ -{ - struct st_mi_isam_share *share; /* Pointer to base (set in mi_open) */ - uint16 keysegs; /* Number of key-segment */ - uint16 flag; /* NOSAME, PACK_USED */ - - uint8 key_alg; /* BTREE, RTREE */ - uint16 block_length; /* Length of keyblock (auto) */ - uint16 underflow_block_length; /* When to execute underflow */ - uint16 keylength; /* Tot length of keyparts (auto) */ - uint16 minlength; /* min length of (packed) key (auto) */ - uint16 maxlength; /* max length of (packed) key (auto) */ - uint16 block_size_index; /* block_size (auto) */ - uint32 version; /* For concurrent read/write */ - uint32 ftkey_nr; /* full-text index number */ - - HA_KEYSEG *seg,*end; - struct st_mysql_ftparser *parser; /* Fulltext [pre]parser */ - int (*bin_search)(struct st_myisam_info *info,struct st_mi_keydef *keyinfo, - uchar *page,uchar *key, - uint key_len,uint comp_flag,uchar * *ret_pos, - uchar *buff, my_bool *was_last_key); - uint (*get_key)(struct st_mi_keydef *keyinfo,uint nod_flag,uchar * *page, - uchar *key); - int (*pack_key)(struct st_mi_keydef *keyinfo,uint nod_flag,uchar *next_key, - uchar *org_key, uchar *prev_key, uchar *key, - struct st_mi_s_param *s_temp); - void (*store_key)(struct st_mi_keydef *keyinfo, uchar *key_pos, - struct st_mi_s_param *s_temp); - int (*ck_insert)(struct st_myisam_info *inf, uint k_nr, uchar *k, uint klen); - int (*ck_delete)(struct st_myisam_info *inf, uint k_nr, uchar *k, uint klen); -} MI_KEYDEF; - - -#define MI_UNIQUE_HASH_LENGTH 4 - -typedef struct st_unique_def /* Segment definition of unique */ -{ - uint16 keysegs; /* Number of key-segment */ - uchar key; /* Mapped to which key */ - uint8 null_are_equal; - HA_KEYSEG *seg,*end; -} MI_UNIQUEDEF; - -typedef struct st_mi_decode_tree /* Decode huff-table */ -{ - uint16 *table; - uint quick_table_bits; - uchar *intervalls; -} MI_DECODE_TREE; - - -struct st_mi_bit_buff; - -/* - Note that null markers should always be first in a row ! - When creating a column, one should only specify: - type, length, null_bit and null_pos -*/ - -typedef struct st_columndef /* column information */ -{ - int16 type; /* en_fieldtype */ - uint16 length; /* length of field */ - uint32 offset; /* Offset to position in row */ - uint8 null_bit; /* If column may be 0 */ - uint16 null_pos; /* position for null marker */ - -#ifndef NOT_PACKED_DATABASES - void (*unpack)(struct st_columndef *rec,struct st_mi_bit_buff *buff, - uchar *start,uchar *end); - enum en_fieldtype base_type; - uint space_length_bits,pack_type; - MI_DECODE_TREE *huff_tree; -#endif -} MI_COLUMNDEF; - - -extern char * myisam_log_filename; /* Name of logfile */ -extern ulong myisam_block_size; -extern ulong myisam_concurrent_insert; -extern my_bool myisam_flush,myisam_delay_key_write,myisam_single_user; -extern my_off_t myisam_max_temp_length; -extern ulong myisam_bulk_insert_tree_size, myisam_data_pointer_size; - -/* usually used to check if a symlink points into the mysql data home */ -/* which is normally forbidden */ -extern int (*myisam_test_invalid_symlink)(const char *filename); -extern ulonglong myisam_mmap_size, myisam_mmap_used; -extern pthread_mutex_t THR_LOCK_myisam_mmap; - - /* Prototypes for myisam-functions */ - -extern int mi_close(struct st_myisam_info *file); -extern int mi_delete(struct st_myisam_info *file,const uchar *buff); -extern struct st_myisam_info *mi_open(const char *name,int mode, - uint wait_if_locked); -extern int mi_panic(enum ha_panic_function function); -extern int mi_rfirst(struct st_myisam_info *file,uchar *buf,int inx); -extern int mi_rkey(MI_INFO *info, uchar *buf, int inx, const uchar *key, - key_part_map keypart_map, enum ha_rkey_function search_flag); -extern int mi_rlast(struct st_myisam_info *file,uchar *buf,int inx); -extern int mi_rnext(struct st_myisam_info *file,uchar *buf,int inx); -extern int mi_rnext_same(struct st_myisam_info *info, uchar *buf); -extern int mi_rprev(struct st_myisam_info *file,uchar *buf,int inx); -extern int mi_rrnd(struct st_myisam_info *file,uchar *buf, my_off_t pos); -extern int mi_scan_init(struct st_myisam_info *file); -extern int mi_scan(struct st_myisam_info *file,uchar *buf); -extern int mi_rsame(struct st_myisam_info *file,uchar *record,int inx); -extern int mi_rsame_with_pos(struct st_myisam_info *file,uchar *record, - int inx, my_off_t pos); -extern int mi_update(struct st_myisam_info *file,const uchar *old, - uchar *new_record); -extern int mi_write(struct st_myisam_info *file,uchar *buff); -extern my_off_t mi_position(struct st_myisam_info *file); -extern int mi_status(struct st_myisam_info *info, MI_ISAMINFO *x, uint flag); -extern int mi_lock_database(struct st_myisam_info *file,int lock_type); -extern int mi_create(const char *name,uint keys,MI_KEYDEF *keydef, - uint columns, MI_COLUMNDEF *columndef, - uint uniques, MI_UNIQUEDEF *uniquedef, - MI_CREATE_INFO *create_info, uint flags); -extern int mi_delete_table(const char *name); -extern int mi_rename(const char *from, const char *to); -extern int mi_extra(struct st_myisam_info *file, - enum ha_extra_function function, - void *extra_arg); -extern int mi_reset(struct st_myisam_info *file); -extern ha_rows mi_records_in_range(MI_INFO *info, int inx, - key_range *min_key, key_range *max_key); -extern int mi_log(int activate_log); -extern int mi_is_changed(struct st_myisam_info *info); -extern int mi_delete_all_rows(struct st_myisam_info *info); -extern ulong _mi_calc_blob_length(uint length , const uchar *pos); -extern uint mi_get_pointer_length(ulonglong file_length, uint def); - -#define MEMMAP_EXTRA_MARGIN 7 /* Write this as a suffix for mmap file */ -/* this is used to pass to mysql_myisamchk_table */ - -#define MYISAMCHK_REPAIR 1 /* equivalent to myisamchk -r */ -#define MYISAMCHK_VERIFY 2 /* Verify, run repair if failure */ - -/* - Definitions needed for myisamchk.c - - Entries marked as "QQ to be removed" are NOT used to - pass check/repair options to mi_check.c. They are used - internally by myisamchk.c or/and ha_myisam.cc and should NOT - be stored together with other flags. They should be removed - from the following list to make addition of new flags possible. -*/ - -#define T_AUTO_INC 1 -#define T_AUTO_REPAIR 2 /* QQ to be removed */ -#define T_BACKUP_DATA 4 -#define T_CALC_CHECKSUM 8 -#define T_CHECK 16 /* QQ to be removed */ -#define T_CHECK_ONLY_CHANGED 32 /* QQ to be removed */ -#define T_CREATE_MISSING_KEYS 64 -#define T_DESCRIPT 128 -#define T_DONT_CHECK_CHECKSUM 256 -#define T_EXTEND 512 -#define T_FAST (1L << 10) /* QQ to be removed */ -#define T_FORCE_CREATE (1L << 11) /* QQ to be removed */ -#define T_FORCE_UNIQUENESS (1L << 12) -#define T_INFO (1L << 13) -#define T_MEDIUM (1L << 14) -#define T_QUICK (1L << 15) /* QQ to be removed */ -#define T_READONLY (1L << 16) /* QQ to be removed */ -#define T_REP (1L << 17) -#define T_REP_BY_SORT (1L << 18) /* QQ to be removed */ -#define T_REP_PARALLEL (1L << 19) /* QQ to be removed */ -#define T_RETRY_WITHOUT_QUICK (1L << 20) -#define T_SAFE_REPAIR (1L << 21) -#define T_SILENT (1L << 22) -#define T_SORT_INDEX (1L << 23) /* QQ to be removed */ -#define T_SORT_RECORDS (1L << 24) /* QQ to be removed */ -#define T_STATISTICS (1L << 25) -#define T_UNPACK (1L << 26) -#define T_UPDATE_STATE (1L << 27) -#define T_VERBOSE (1L << 28) -#define T_VERY_SILENT (1L << 29) -#define T_WAIT_FOREVER (1L << 30) -#define T_WRITE_LOOP ((ulong) 1L << 31) - -#define T_REP_ANY (T_REP | T_REP_BY_SORT | T_REP_PARALLEL) - -/* - Flags used by myisamchk.c or/and ha_myisam.cc that are NOT passed - to mi_check.c follows: -*/ - -#define TT_USEFRM 1 -#define TT_FOR_UPGRADE 2 - -#define O_NEW_INDEX 1 /* Bits set in out_flag */ -#define O_NEW_DATA 2 -#define O_DATA_LOST 4 - -/* these struct is used by my_check to tell it what to do */ - -typedef struct st_sort_key_blocks /* Used when sorting */ -{ - uchar *buff,*end_pos; - uchar lastkey[MI_MAX_POSSIBLE_KEY_BUFF]; - uint last_length; - int inited; -} SORT_KEY_BLOCKS; - - -/* - MyISAM supports several statistics collection methods. Currently statistics - collection method is not stored in MyISAM file and has to be specified for - each table analyze/repair operation in MI_CHECK::stats_method. -*/ - -typedef enum -{ - /* Treat NULLs as inequal when collecting statistics (default for 4.1/5.0) */ - MI_STATS_METHOD_NULLS_NOT_EQUAL, - /* Treat NULLs as equal when collecting statistics (like 4.0 did) */ - MI_STATS_METHOD_NULLS_EQUAL, - /* Ignore NULLs - count only tuples without NULLs in the index components */ - MI_STATS_METHOD_IGNORE_NULLS -} enum_mi_stats_method; - -typedef struct st_mi_check_param -{ - ulonglong auto_increment_value; - ulonglong max_data_file_length; - ulonglong keys_in_use; - ulonglong max_record_length; - my_off_t search_after_block; - my_off_t new_file_pos,key_file_blocks; - my_off_t keydata,totaldata,key_blocks,start_check_pos; - ha_rows total_records,total_deleted; - ha_checksum record_checksum,glob_crc; - ulonglong use_buffers; - ulong read_buffer_length,write_buffer_length, - sort_buffer_length,sort_key_blocks; - uint out_flag,warning_printed,error_printed,verbose; - uint opt_sort_key,total_files,max_level; - uint testflag, key_cache_block_size; - uint8 language; - my_bool using_global_keycache, opt_lock_memory, opt_follow_links; - my_bool retry_repair, force_sort; - char temp_filename[FN_REFLEN],*isam_file_name; - MY_TMPDIR *tmpdir; - int tmpfile_createflag; - myf myf_rw; - IO_CACHE read_cache; - - /* - The next two are used to collect statistics, see update_key_parts for - description. - */ - ulonglong unique_count[MI_MAX_KEY_SEG+1]; - ulonglong notnull_count[MI_MAX_KEY_SEG+1]; - - ha_checksum key_crc[HA_MAX_POSSIBLE_KEY]; - ulong rec_per_key_part[MI_MAX_KEY_SEG*HA_MAX_POSSIBLE_KEY]; - void *thd; - const char *db_name, *table_name; - const char *op_name; - enum_mi_stats_method stats_method; -#ifdef THREAD - pthread_mutex_t print_msg_mutex; - my_bool need_print_msg_lock; -#endif -} MI_CHECK; - -typedef struct st_sort_ft_buf -{ - uchar *buf, *end; - int count; - uchar lastkey[MI_MAX_KEY_BUFF]; -} SORT_FT_BUF; - -typedef struct st_sort_info -{ - my_off_t filelength,dupp,buff_length; - ha_rows max_records; - uint current_key, total_keys; - myf myf_rw; - enum data_file_type new_data_file_type; - MI_INFO *info; - MI_CHECK *param; - uchar *buff; - SORT_KEY_BLOCKS *key_block,*key_block_end; - SORT_FT_BUF *ft_buf; - /* sync things */ - uint got_error, threads_running; -#ifdef THREAD - pthread_mutex_t mutex; - pthread_cond_t cond; -#endif -} SORT_INFO; - -/* functions in mi_check */ -void myisamchk_init(MI_CHECK *param); -int chk_status(MI_CHECK *param, MI_INFO *info); -int chk_del(MI_CHECK *param, register MI_INFO *info, uint test_flag); -int chk_size(MI_CHECK *param, MI_INFO *info); -int chk_key(MI_CHECK *param, MI_INFO *info); -int chk_data_link(MI_CHECK *param, MI_INFO *info,int extend); -int mi_repair(MI_CHECK *param, register MI_INFO *info, - char * name, int rep_quick); -int mi_sort_index(MI_CHECK *param, register MI_INFO *info, char * name); -int mi_repair_by_sort(MI_CHECK *param, register MI_INFO *info, - const char * name, int rep_quick); -int mi_repair_parallel(MI_CHECK *param, register MI_INFO *info, - const char * name, int rep_quick); -int change_to_newfile(const char * filename, const char * old_ext, - const char * new_ext, uint raid_chunks, - myf myflags); -int lock_file(MI_CHECK *param, File file, my_off_t start, int lock_type, - const char *filetype, const char *filename); -void lock_memory(MI_CHECK *param); -void update_auto_increment_key(MI_CHECK *param, MI_INFO *info, - my_bool repair); -int update_state_info(MI_CHECK *param, MI_INFO *info,uint update); -void update_key_parts(MI_KEYDEF *keyinfo, ulong *rec_per_key_part, - ulonglong *unique, ulonglong *notnull, - ulonglong records); -int filecopy(MI_CHECK *param, File to,File from,my_off_t start, - my_off_t length, const char *type); -int movepoint(MI_INFO *info,uchar *record,my_off_t oldpos, - my_off_t newpos, uint prot_key); -int write_data_suffix(SORT_INFO *sort_info, my_bool fix_datafile); -int test_if_almost_full(MI_INFO *info); -int recreate_table(MI_CHECK *param, MI_INFO **org_info, char *filename); -void mi_disable_non_unique_index(MI_INFO *info, ha_rows rows); -my_bool mi_test_if_sort_rep(MI_INFO *info, ha_rows rows, ulonglong key_map, - my_bool force); - -int mi_init_bulk_insert(MI_INFO *info, ulong cache_size, ha_rows rows); -void mi_flush_bulk_insert(MI_INFO *info, uint inx); -void mi_end_bulk_insert(MI_INFO *info); -int mi_assign_to_key_cache(MI_INFO *info, ulonglong key_map, - KEY_CACHE *key_cache); -void mi_change_key_cache(KEY_CACHE *old_key_cache, - KEY_CACHE *new_key_cache); -int mi_preload(MI_INFO *info, ulonglong key_map, my_bool ignore_leaves); - -#ifdef __cplusplus -} -#endif -#endif |