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-rw-r--r--isam/isamdef.h418
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diff --git a/isam/isamdef.h b/isam/isamdef.h
deleted file mode 100644
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--- a/isam/isamdef.h
+++ /dev/null
@@ -1,418 +0,0 @@
-/* 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 */
-
-/* Denna fil includeras i alla isam-filer */
-
-#define ISAM_LIBRARY
-#include <nisam.h> /* Structs & some defines */
-#ifdef THREAD
-#include <my_pthread.h>
-#include <thr_lock.h>
-#else
-#include <my_no_pthread.h>
-#endif
-#include <keycache.h>
-
-#ifdef my_write
-#undef my_write /* We want test if disk full */
-#endif
-#undef HA_SORT_ALLOWS_SAME
-#define HA_SORT_ALLOWS_SAME 128 /* Can't be > 128 in NISAM */
-
-#ifdef __WATCOMC__
-#pragma pack(2)
-#define uint uint16 /* Same format as in MSDOS */
-#endif
-#ifdef __ZTC__
-#pragma ZTC align 2
-#define uint uint16 /* Same format as in MSDOS */
-#endif
-#if defined(__WIN__) && defined(_MSC_VER)
-#pragma pack(push,isamdef,2)
-#define uint uint16
-#endif
-
-typedef struct st_state_info
-{
- struct { /* Fileheader */
- uchar file_version[4];
- uchar options[2];
- uchar header_length[2];
- uchar state_info_length[2];
- uchar base_info_length[2];
- uchar base_pos[2];
- uchar not_used[2];
- } header;
-
- ulong records; /* Antal record i databasen */
- ulong del; /* Antalet borttagna poster */
- ulong dellink; /* L{nk till n{sta borttagna */
- ulong key_file_length;
- ulong data_file_length;
- ulong splitt; /* Antal splittrade delar */
- ulong empty; /* Outnyttjat utrymme */
- ulong process; /* Vem som senast uppdatera */
- ulong loop; /* not used anymore */
- ulong uniq; /* Unik nr i denna process */
- ulong key_root[N_MAXKEY]; /* Pekare till rootblocken */
- ulong key_del[N_MAXKEY]; /* Del-l{nkar f|r n-block */
- ulong sec_index_changed; /* Updated when new sec_index */
- ulong sec_index_used; /* 1 bit for each sec index in use */
- ulong version; /* timestamp of create */
- uint keys; /* Keys in use for database */
-} N_STATE_INFO;
-
-
-typedef struct st_base_info
-{
- ulong keystart; /* Var nycklarna b|rjar */
- ulong records,reloc; /* Parameter vid skapandet */
- ulong max_pack_length; /* Max possibly length of packed rec.*/
- ulong max_data_file_length;
- ulong max_key_file_length;
- uint reclength; /* length of unpacked record */
- uint options; /* Options used */
- uint pack_reclength; /* Length of full packed rec. */
- uint min_pack_length;
- uint min_block_length;
- uint rec_reflength; /* = 2 or 3 or 4 */
- uint key_reflength; /* = 2 or 3 or 4 */
- uint keys; /* Keys defined for database */
- uint blobs; /* Number of blobs */
- uint max_block; /* Max blockl{ngd anv{nd */
- uint max_key_length; /* L{ngsta nyckel-l{ngden */
- uint fields, /* Antal f{lt i databasen */
- pack_fields, /* Packade f{lt i databasen */
- pack_bits; /* Length of packed bits */
- time_t create_time; /* Time when created database */
- time_t isamchk_time; /* Time for last recover */
- ulong rec_per_key[N_MAXKEY]; /* for sql optimizing */
- uint sortkey; /* sorted by this key */
-} N_BASE_INFO;
-
-
-#ifdef __ZTC__
-#pragma ZTC align
-#undef uint
-#endif
-#ifdef __WATCOMC__
-#pragma pack()
-#undef uint
-#endif
-#if defined(__WIN__) && defined(_MSC_VER)
-#pragma pack(pop,isamdef)
-#undef uint
-#endif
-
- /* Structs used intern in database */
-
-typedef struct st_n_blob /* Info of record */
-{
- uint offset; /* Offset to blob in record */
- uint pack_length; /* Type of packed length */
- uint length; /* Calc:ed for each record */
-} N_BLOB;
-
-
-typedef struct st_isam_pack {
- ulong header_length;
- uint ref_length;
-} N_PACK;
-
-
-typedef struct st_isam_share { /* Shared between opens */
- N_STATE_INFO state;
- N_BASE_INFO base;
- N_KEYDEF *keyinfo; /* Nyckelinfo */
- N_RECINFO *rec; /* Pointer till recdata */
- N_PACK pack; /* Data about packed records */
- N_BLOB *blobs; /* Pointer to blobs */
- char *filename; /* Name of indexfile */
- byte *file_map; /* mem-map of file if possible */
- ulong this_process; /* processid */
- ulong last_process; /* For table-change-check */
- ulong last_version; /* Version on start */
- uint rec_reflength; /* rec_reflength in use now */
- int kfile; /* Shared keyfile */
- int mode; /* mode of file on open */
- int reopen; /* How many times reopened */
- uint state_length;
- uint w_locks,r_locks; /* Number of read/write locks */
- uint min_pack_length; /* Theese is used by packed data */
- uint max_pack_length;
- uint blocksize; /* blocksize of keyfile */
- my_bool changed,not_flushed; /* If changed since lock */
- int rnd; /* rnd-counter */
- DECODE_TREE *decode_trees;
- uint16 *decode_tables;
- enum data_file_type data_file_type;
- int (*read_record)(struct st_isam_info*, ulong, byte*);
- int (*write_record)(struct st_isam_info*, const byte*);
- int (*update_record)(struct st_isam_info*, ulong, const byte*);
- int (*delete_record)(struct st_isam_info*);
- int (*read_rnd)(struct st_isam_info*, byte*, ulong, int);
- int (*compare_record)(struct st_isam_info*, const byte *);
-#ifdef THREAD
- THR_LOCK lock;
- pthread_mutex_t intern_lock; /* Locking for use with _locking */
-#endif
-} ISAM_SHARE;
-
-
-typedef uint bit_type;
-
-typedef struct st_bit_buff { /* Used for packing of record */
- bit_type current_byte;
- uint bits;
- uchar *pos,*end;
- uint error;
-} BIT_BUFF;
-
-
-typedef struct st_isam_info {
- ISAM_SHARE *s; /* Shared between open:s */
- N_BLOB *blobs; /* Pointer to blobs */
- int dfile; /* The datafile */
- BIT_BUFF bit_buff;
- uint options;
- uint opt_flag; /* Optim. for space/speed */
- uint update; /* If file changed since open */
- char *filename; /* parameter to open filename */
- ulong this_uniq; /* uniq filenumber or thread */
- ulong last_uniq; /* last uniq number */
- ulong this_loop; /* counter for this open */
- ulong last_loop; /* last used counter */
- ulong lastpos, /* Last record position */
- nextpos; /* Position to next record */
- ulong int_pos; /* Intern variabel */
- ulong dupp_key_pos; /* Position to record with dupp key */
- ulong last_search_keypage;
- ulong save_lastpos;
- uint packed_length; /* Length of found, packed record */
- uint alloced_rec_buff_length; /* Max recordlength malloced */
- uchar *buff, /* Temp area for key */
- *lastkey; /* Last used search key */
- byte *rec_buff, /* Tempbuff for recordpack */
- *rec_alloc; /* Malloced area for record */
- uchar *int_keypos, /* Intern variabel */
- *int_maxpos; /* Intern variabel */
- int lastinx; /* Last used index */
- int errkey; /* Got last error on this key */
- uint data_changed; /* Somebody has changed data */
- int lock_type; /* How database was locked */
- int tmp_lock_type; /* When locked by readinfo */
- int was_locked; /* Was locked in panic */
- myf lock_wait; /* is 0 or MY_DONT_WAIT */
- my_bool page_changed;
- my_bool buff_used;
- uint save_update; /* When using KEY_READ */
- int save_lastinx;
- int (*read_record)(struct st_isam_info*, ulong, byte*);
- LIST open_list;
- IO_CACHE rec_cache; /* When cacheing records */
-#ifdef THREAD
- THR_LOCK_DATA lock;
-#endif
-} N_INFO;
-
-
- /* Some defines used by isam-funktions */
-
-#define USE_HOLE_KEY 0 /* Use hole key in _nisam_search() */
-#define F_EXTRA_LCK -1
-
- /* bits in opt_flag */
-#define MEMMAP_USED 32
-#define REMEMBER_OLD_POS 64
-
-#define getint(x) ((uint) (uint16) *((int16*) (x)) & 32767)
-#define putint(x,y,nod) (*((uint16*) (x))= ((nod ? (uint16) 32768 : 0)+(uint16) (y)))
-#ifdef WORDS_BIGENDIAN
-#define test_if_nod(x) (x[0] & 128 ? info->s->base.key_reflength : 0)
-#else
-#define test_if_nod(x) (x[1] & 128 ? info->s->base.key_reflength : 0)
-#endif
-
-#define N_MIN_BLOCK_LENGTH 8 /* Because of delete-link */
-#define N_EXTEND_BLOCK_LENGTH 20 /* Don't use to small record-blocks */
-#define N_SPLITT_LENGTH ((N_EXTEND_BLOCK_LENGTH+3)*2)
-#define MAX_DYN_BLOCK_HEADER 11 /* Max prefix of record-block */
-#define DYN_DELETE_BLOCK_HEADER 8 /* length of delete-block-header */
-#define MEMMAP_EXTRA_MARGIN 7 /* Write this as a suffix for file */
-#define INDEX_BLOCK_MARGIN 16 /* Safety margin for .ISM tables */
-
-#define PACK_TYPE_SELECTED 1 /* Bits in field->pack_type */
-#define PACK_TYPE_SPACE_FIELDS 2
-#define PACK_TYPE_ZERO_FILL 4
-
-#ifdef THREAD
-extern pthread_mutex_t THR_LOCK_isam;
-#endif
-
- /* Some extern variables */
-
-extern LIST *nisam_open_list;
-extern uchar NEAR nisam_file_magic[],NEAR nisam_pack_file_magic[];
-extern uint NEAR nisam_read_vec[],nisam_quick_table_bits;
-extern File nisam_log_file;
-
- /* This is used by _nisam_get_pack_key_length och _nisam_store_key */
-
-typedef struct st_s_param
-{
- uint ref_length,key_length,
- n_ref_length,
- n_length,
- totlength,
- part_of_prev_key,prev_length;
- uchar *key, *prev_key;
-} S_PARAM;
-
- /* Prototypes for intern functions */
-
-extern int _nisam_read_dynamic_record(N_INFO *info,ulong filepos,byte *buf);
-extern int _nisam_write_dynamic_record(N_INFO*, const byte*);
-extern int _nisam_update_dynamic_record(N_INFO*, ulong, const byte*);
-extern int _nisam_delete_dynamic_record(N_INFO *info);
-extern int _nisam_cmp_dynamic_record(N_INFO *info,const byte *record);
-extern int _nisam_read_rnd_dynamic_record(N_INFO *, byte *,ulong, int);
-extern int _nisam_write_blob_record(N_INFO*, const byte*);
-extern int _nisam_update_blob_record(N_INFO*, ulong, const byte*);
-extern int _nisam_read_static_record(N_INFO *info,ulong filepos,byte *buf);
-extern int _nisam_write_static_record(N_INFO*, const byte*);
-extern int _nisam_update_static_record(N_INFO*, ulong, const byte*);
-extern int _nisam_delete_static_record(N_INFO *info);
-extern int _nisam_cmp_static_record(N_INFO *info,const byte *record);
-extern int _nisam_read_rnd_static_record(N_INFO*, byte *,ulong, int);
-extern int _nisam_ck_write(N_INFO *info,uint keynr,uchar *key);
-extern int _nisam_enlarge_root(N_INFO *info,uint keynr,uchar *key);
-extern int _nisam_insert(N_INFO *info,N_KEYDEF *keyinfo,uchar *key,
- uchar *anc_buff,uchar *key_pos,uchar *key_buff,
- uchar *father_buff, uchar *father_keypos,
- ulong father_page);
-extern int _nisam_splitt_page(N_INFO *info,N_KEYDEF *keyinfo,uchar *key,
- uchar *buff,uchar *key_buff);
-extern uchar *_nisam_find_half_pos(N_INFO *info,N_KEYDEF *keyinfo,uchar *page,
- uchar *key);
-extern uint _nisam_get_pack_key_length(N_KEYDEF *keyinfo,uint nod_flag,
- uchar *key_pos,uchar *key_buff,
- uchar *key, S_PARAM *s_temp);
-extern void _nisam_store_key(N_KEYDEF *keyinfo,uchar *key_pos,
- S_PARAM *s_temp);
-extern int _nisam_ck_delete(N_INFO *info,uint keynr,uchar *key);
-extern int _nisam_readinfo(N_INFO *info,int lock_flag,int check_keybuffer);
-extern int _nisam_writeinfo(N_INFO *info, uint flag);
-extern int _nisam_test_if_changed(N_INFO *info);
-extern int _nisam_check_index(N_INFO *info,int inx);
-extern int _nisam_search(N_INFO *info,N_KEYDEF *keyinfo,uchar *key,uint key_len,uint nextflag,ulong pos);
-extern int _nisam_bin_search(struct st_isam_info *info,N_KEYDEF *keyinfo,uchar *page,uchar *key,uint key_len,uint comp_flag,uchar * *ret_pos,uchar *buff);
-extern int _nisam_seq_search(N_INFO *info,N_KEYDEF *keyinfo,uchar *page,uchar *key,uint key_len,uint comp_flag,uchar * *ret_pos,uchar *buff);
-extern ulong _nisam_kpos(uint nod_flag,uchar *after_key);
-extern void _nisam_kpointer(N_INFO *info,uchar *buff,ulong pos);
-extern ulong _nisam_dpos(N_INFO *info, uint nod_flag,uchar *after_key);
-extern void _nisam_dpointer(N_INFO *info, uchar *buff,ulong pos);
-extern int _nisam_key_cmp(N_KEYSEG *keyseg,uchar *a,uchar *b,
- uint key_length,uint nextflag);
-extern uint _nisam_get_key(N_KEYDEF *keyinfo,uint nod_flag,uchar * *page,uchar *key);
-extern uint _nisam_get_static_key(N_KEYDEF *keyinfo,uint nod_flag,uchar * *page,uchar *key);
-extern uchar *_nisam_get_last_key(N_INFO *info,N_KEYDEF *keyinfo,uchar *keypos,uchar *lastkey,uchar *endpos);
-extern uint _nisam_keylength(N_KEYDEF *keyinfo,uchar *key);
-extern uchar *_nisam_move_key(N_KEYDEF *keyinfo,uchar *to,uchar *from);
-extern int _nisam_search_next(N_INFO *info,N_KEYDEF *keyinfo,uchar *key,uint nextflag,ulong pos);
-extern int _nisam_search_first(N_INFO *info,N_KEYDEF *keyinfo,ulong pos);
-extern int _nisam_search_last(N_INFO *info,N_KEYDEF *keyinfo,ulong pos);
-extern uchar *_nisam_fetch_keypage(N_INFO *info,N_KEYDEF *keyinfo,my_off_t page,
- uchar *buff,int return_buffer);
-extern int _nisam_write_keypage(N_INFO *info,N_KEYDEF *keyinfo,my_off_t page,
- uchar *buff);
-extern int _nisam_dispose(N_INFO *info,N_KEYDEF *keyinfo,my_off_t pos);
-extern ulong _nisam_new(N_INFO *info,N_KEYDEF *keyinfo);
-extern uint _nisam_make_key(N_INFO *info,uint keynr,uchar *key,
- const char *record,ulong filepos);
-extern uint _nisam_pack_key(N_INFO *info,uint keynr,uchar *key,uchar *old,uint key_length);
-extern int _nisam_read_key_record(N_INFO *info,ulong filepos,byte *buf);
-extern int _nisam_read_cache(IO_CACHE *info,byte *buff,ulong pos,
- uint length,int re_read_if_possibly);
-extern byte *fix_rec_buff_for_blob(N_INFO *info,uint blob_length);
-extern uint _nisam_rec_unpack(N_INFO *info,byte *to,byte *from,
- uint reclength);
-my_bool _nisam_rec_check(N_INFO *info,const char *from);
-extern int _nisam_write_part_record(N_INFO *info,ulong filepos,uint length,
- ulong next_filepos,byte **record,
- uint *reclength,int *flag);
-extern void _nisam_print_key(FILE *stream,N_KEYSEG *keyseg,const uchar *key);
-extern my_bool _nisam_read_pack_info(N_INFO *info,pbool fix_keys);
-extern int _nisam_read_pack_record(N_INFO *info,ulong filepos,byte *buf);
-extern int _nisam_read_rnd_pack_record(N_INFO*, byte *,ulong, int);
-extern int _nisam_pack_rec_unpack(N_INFO *info,byte *to,byte *from,
- uint reclength);
-extern ulong _nisam_checksum(const byte *mem, uint count);
-
-typedef struct st_sortinfo {
- uint key_length;
- ulong max_records;
- int (*key_cmp)(const void *, const void *, const void *);
- int (*key_read)(void *buff);
- int (*key_write)(const void *buff);
- void (*lock_in_memory)(void);
-} SORT_PARAM;
-
-int _create_index_by_sort(SORT_PARAM *info,pbool no_messages,
- uint sortbuff_size);
-
-#define BLOCK_INFO_HEADER_LENGTH 11
-
-typedef struct st_block_info { /* Parameter to _nisam_get_block_info */
- uchar header[BLOCK_INFO_HEADER_LENGTH];
- uint rec_len;
- uint data_len;
- uint block_len;
- ulong filepos; /* Must be ulong on Alpha! */
- ulong next_filepos;
- uint second_read;
-} BLOCK_INFO;
-
- /* bits in return from _nisam_get_block_info */
-
-#define BLOCK_FIRST 1
-#define BLOCK_LAST 2
-#define BLOCK_DELETED 4
-#define BLOCK_ERROR 8 /* Wrong data */
-#define BLOCK_SYNC_ERROR 16 /* Right data at wrong place */
-#define BLOCK_FATAL_ERROR 32 /* hardware-error */
-
-enum nisam_log_commands {
- LOG_OPEN,LOG_WRITE,LOG_UPDATE,LOG_DELETE,LOG_CLOSE,LOG_EXTRA,LOG_LOCK
-};
-
-#define nisam_log_simple(a,b,c,d) if (nisam_log_file >= 0) _nisam_log(a,b,c,d)
-#define nisam_log_command(a,b,c,d,e) if (nisam_log_file >= 0) _nisam_log_command(a,b,c,d,e)
-#define nisam_log_record(a,b,c,d,e) if (nisam_log_file >= 0) _nisam_log_record(a,b,c,d,e)
-
-extern uint _nisam_get_block_info(BLOCK_INFO *,File, ulong);
-extern uint _nisam_rec_pack(N_INFO *info,byte *to,const byte *from);
-extern uint _nisam_pack_get_block_info(BLOCK_INFO *, uint, File, ulong);
-extern uint _calc_total_blob_length(N_INFO *info,const byte *record);
-extern void _nisam_log(enum nisam_log_commands command,N_INFO *info,
- const byte *buffert,uint length);
-extern void _nisam_log_command(enum nisam_log_commands command,
- N_INFO *info, const byte *buffert,
- uint length, int result);
-extern void _nisam_log_record(enum nisam_log_commands command,N_INFO *info,
- const byte *record,ulong filepos,
- int result);
-extern my_bool _nisam_memmap_file(N_INFO *info);
-extern void _nisam_unmap_file(N_INFO *info);
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