unireg.h
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上传日期:2022-05-23
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- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- /* Extra functions used by unireg library */
- #ifndef _unireg_h
- #ifndef NO_ALARM_LOOP
- #define NO_ALARM_LOOP /* lib5 and popen can't use alarm */
- #endif
- /* These paths are converted to other systems (WIN95) before use */
- #define LANGUAGE "english/"
- #define ERRMSG_FILE "errmsg.sys"
- #define TEMP_PREFIX "MY"
- #define LOG_PREFIX "ML"
- #define PROGDIR "bin/"
- #ifndef DATADIR
- #define DATADIR "data/"
- #endif
- #ifndef SHAREDIR
- #define SHAREDIR "share/"
- #endif
- #define ER(X) errmesg[(X)-1000]
- #define ER_SAFE(X) (((X) >= 1000 && (X) < ER_ERROR_MESSAGES + 1000) ? ER(X) : "Invalid error code")
- #define ERRMAPP 1 /* Errormap f|r my_error */
- #define LIBLEN FN_REFLEN-FN_LEN /* Max l{ngd p} dev */
- #define MAX_DBKEY_LENGTH (FN_LEN*2+1+1+4+4) /* extra 4+4 bytes for slave tmp
- * tables */
- #define MAX_ALIAS_NAME 256
- #define MAX_FIELD_NAME 34 /* Max colum name length +2 */
- #define MAX_SYS_VAR_LENGTH 32
- #define MAX_KEY 64 /* Max used keys */
- #define MAX_REF_PARTS 16 /* Max parts used as ref */
- #define MAX_KEY_LENGTH 1024 /* max possible key */
- #if SIZEOF_OFF_T > 4
- #define MAX_REFLENGTH 8 /* Max length for record ref */
- #else
- #define MAX_REFLENGTH 4 /* Max length for record ref */
- #endif
- #define MAX_HOSTNAME 61 /* len+1 in mysql.user */
- #define MAX_MBWIDTH 3 /* Max multibyte sequence */
- #define MAX_FIELD_CHARLENGTH 255
- /* Max column width +1 */
- #define MAX_FIELD_WIDTH (MAX_FIELD_CHARLENGTH*MAX_MBWIDTH+1)
- #define MAX_DATE_WIDTH 10 /* YYYY-MM-DD */
- #define MAX_TIME_WIDTH 23 /* -DDDDDD HH:MM:SS.###### */
- #define MAX_DATETIME_FULL_WIDTH 29 /* YYYY-MM-DD HH:MM:SS.###### AM */
- #define MAX_DATETIME_WIDTH 19 /* YYYY-MM-DD HH:MM:SS */
- #define MAX_TABLES (sizeof(table_map)*8-3) /* Max tables in join */
- #define PARAM_TABLE_BIT (((table_map) 1) << (sizeof(table_map)*8-3))
- #define OUTER_REF_TABLE_BIT (((table_map) 1) << (sizeof(table_map)*8-2))
- #define RAND_TABLE_BIT (((table_map) 1) << (sizeof(table_map)*8-1))
- #define PSEUDO_TABLE_BITS (PARAM_TABLE_BIT | OUTER_REF_TABLE_BIT |
- RAND_TABLE_BIT)
- #define MAX_FIELDS 4096 /* Limit in the .frm file */
- #define MAX_SORT_MEMORY (2048*1024-MALLOC_OVERHEAD)
- #define MIN_SORT_MEMORY (32*1024-MALLOC_OVERHEAD)
- /* Memory allocated when parsing a statement / saving a statement */
- #define MEM_ROOT_BLOCK_SIZE 8192
- #define MEM_ROOT_PREALLOC 8192
- #define TRANS_MEM_ROOT_BLOCK_SIZE 4096
- #define TRANS_MEM_ROOT_PREALLOC 4096
- #define DEFAULT_ERROR_COUNT 64
- #define EXTRA_RECORDS 10 /* Extra records in sort */
- #define SCROLL_EXTRA 5 /* Extra scroll-rows. */
- #define FIELD_NAME_USED ((uint) 32768) /* Bit set if fieldname used */
- #define FORM_NAME_USED ((uint) 16384) /* Bit set if formname used */
- #define FIELD_NR_MASK 16383 /* To get fieldnumber */
- #define FERR -1 /* Error from my_functions */
- #define CREATE_MODE 0 /* Default mode on new files */
- #define NAMES_SEP_CHAR '377' /* Char to sep. names */
- #define READ_RECORD_BUFFER (uint) (IO_SIZE*8) /* Pointer_buffer_size */
- #define DISK_BUFFER_SIZE (uint) (IO_SIZE*16) /* Size of diskbuffer */
- #define POSTFIX_ERROR DBL_MAX
- #define ME_INFO (ME_HOLDTANG+ME_OLDWIN+ME_NOREFRESH)
- #define ME_ERROR (ME_BELL+ME_OLDWIN+ME_NOREFRESH)
- #define MYF_RW MYF(MY_WME+MY_NABP) /* Vid my_read & my_write */
- #define SPECIAL_USE_LOCKS 1 /* Lock used databases */
- #define SPECIAL_NO_NEW_FUNC 2 /* Skip new functions */
- #define SPECIAL_SKIP_SHOW_DB 4 /* Don't allow 'show db' */
- #define SPECIAL_WAIT_IF_LOCKED 8 /* Wait if locked database */
- #define SPECIAL_SAME_DB_NAME 16 /* form name = file name */
- #define SPECIAL_ENGLISH 32 /* English error messages */
- #define SPECIAL_NO_RESOLVE 64 /* Don't use gethostname */
- #define SPECIAL_NO_PRIOR 128 /* Don't prioritize threads */
- #define SPECIAL_BIG_SELECTS 256 /* Don't use heap tables */
- #define SPECIAL_NO_HOST_CACHE 512 /* Don't cache hosts */
- #define SPECIAL_SHORT_LOG_FORMAT 1024
- #define SPECIAL_SAFE_MODE 2048
- #define SPECIAL_LOG_QUERIES_NOT_USING_INDEXES 4096 /* Log q not using indexes */
- /* Extern defines */
- #define store_record(A,B) bmove_align((A)->B,(A)->record[0],(size_t) (A)->reclength)
- #define restore_record(A,B) bmove_align((A)->record[0],(A)->B,(size_t) (A)->reclength)
- #define cmp_record(A,B) memcmp((A)->record[0],(A)->B,(size_t) (A)->reclength)
- #define empty_record(A) {
- restore_record((A),default_values);
- bfill((A)->null_flags,(A)->null_bytes,255);
- }
- /* Defines for use with openfrm, openprt and openfrd */
- #define READ_ALL 1 /* openfrm: Read all parameters */
- #define CHANGE_FRM 2 /* openfrm: open .frm as O_RDWR */
- #define READ_KEYINFO 4 /* L{s nyckeldata fr}n filen */
- #define EXTRA_RECORD 8 /* Reservera plats f|r extra record */
- #define DONT_OPEN_TABLES 8 /* Don't open database-files (frd) */
- #define DONT_OPEN_MASTER_REG 16 /* Don't open first reg-file (prt) */
- #define EXTRA_LONG_RECORD 16 /* Plats f|r dubbel s|k-record */
- #define COMPUTE_TYPES 32 /* Kontrollera type f|r f{ltena */
- #define SEARCH_PRG 64 /* S|k efter registret i 'prg_dev' */
- #define READ_USED_NAMES 128 /* L{s anv{nda formul{rnamn */
- #define DONT_GIVE_ERROR 256 /* Don't do frm_error on openfrm */
- #define READ_SCREENS 1024 /* Read screens, info and helpfile */
- #define DELAYED_OPEN 4096 /* Open table later */
- #define SC_INFO_LENGTH 4 /* Form format constant */
- #define TE_INFO_LENGTH 3
- #define MTYP_NOEMPTY_BIT 128
- /*
- Minimum length pattern before Turbo Boyer-Moore is used
- for SELECT "text" LIKE "%pattern%", excluding the two
- wildcards in class Item_func_like.
- */
- #define MIN_TURBOBM_PATTERN_LEN 3
- /*
- Defines for binary logging.
- Do not decrease the value of BIN_LOG_HEADER_SIZE.
- Do not even increase it before checking code.
- */
- #define BIN_LOG_HEADER_SIZE 4
- #define FLOATING_POINT_BUFFER 331
- #define DEFAULT_KEY_CACHE_NAME "default"
- /* Include prototypes for unireg */
- #include "mysqld_error.h"
- #include "structs.h" /* All structs we need */
- #endif