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MySQL 5.1: mysql/src/5.1-dbg/storage/myisam/fulltext.h File Reference

mysql/src/5.1-dbg/storage/myisam/fulltext.h File Reference

#include "myisamdef.h"
#include "ft_global.h"

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Defines
#define	HA_FT_WTYPE HA_KEYTYPE_FLOAT
#define	HA_FT_WLEN 4
#define	FT_SEGS 2
#define	ft_sintXkorr(A) mi_sint4korr(A)
#define	ft_intXstore(T, A) mi_int4store(T,A)
Functions
int	_mi_ft_cmp (MI_INFO , uint, const byte , const byte *)
int	_mi_ft_add (MI_INFO , uint, byte , const byte *, my_off_t)
int	_mi_ft_del (MI_INFO , uint, byte , const byte *, my_off_t)
uint	_mi_ft_convert_to_ft2 (MI_INFO , uint, uchar )
Variables
const HA_KEYSEG	ft_keysegs [FT_SEGS]

Define Documentation

#define ft_intXstore	(	T,
		A		)	mi_int4store(T,A)

Definition at line 29 of file fulltext.h.

Referenced by _mi_ft_convert_to_ft2(), d_search(), sort_ft_buf_flush(), and w_search().

#define FT_SEGS 2

Definition at line 26 of file fulltext.h.

Referenced by mi_open().

#define ft_sintXkorr ( A ) mi_sint4korr(A)

Definition at line 28 of file fulltext.h.

Referenced by _ft2_search(), chk_index(), d_search(), main(), sort_one_index(), w_search(), and walk_and_match().

#define HA_FT_WLEN 4

Definition at line 25 of file fulltext.h.

Referenced by _ft2_search(), _ft_make_key(), _mi_ft_convert_to_ft2(), d_search(), ftb_query_add_word(), mi_open(), sort_ft_buf_flush(), sort_ft_key_write(), w_search(), and walk_and_match().

#define HA_FT_WTYPE HA_KEYTYPE_FLOAT

Definition at line 24 of file fulltext.h.

Function Documentation

int _mi_ft_add	(	MI_INFO *	,
		uint	,
		byte *	,
		const byte *	,
		my_off_t
	)

Definition at line 245 of file ft_update.c.

References _mi_ft_parserecord(), _mi_ft_store(), DBUG_ENTER, DBUG_PRINT, DBUG_RETURN, error, free_root(), st_myisam_info::ft_memroot, MY_MARK_BLOCKS_FREE, and MYF.

Referenced by writekeys().

00247 {
00248   int error= -1;
00249   FT_WORD *wlist;
00250   DBUG_ENTER("_mi_ft_add");
00251   DBUG_PRINT("enter",("keynr: %d",keynr));
00252 
00253   if ((wlist=_mi_ft_parserecord(info, keynr, record, &info->ft_memroot)))
00254     error=_mi_ft_store(info,keynr,keybuf,wlist,pos);
00255 
00256   free_root(&info->ft_memroot, MYF(MY_MARK_BLOCKS_FREE));
00257   DBUG_PRINT("exit",("Return: %d",error));
00258   DBUG_RETURN(error);
00259 }

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int _mi_ft_cmp	(	MI_INFO *	,
		uint	,
		const byte *	,
		const byte *
	)

Definition at line 172 of file ft_update.c.

References _mi_ft_segiterator(), _mi_ft_segiterator_init(), st_HA_KEYSEG::charset, DBUG_ENTER, DBUG_RETURN, GEE_THEY_ARE_ABSOLUTELY_IDENTICAL, st_mi_isam_share::keyinfo, _st_ft_seg_iterator::len, mi_compare_text(), _st_ft_seg_iterator::pos, st_myisam_info::s, st_mi_keydef::seg, and THOSE_TWO_DAMN_KEYS_ARE_REALLY_DIFFERENT.

00173 {
00174   FT_SEG_ITERATOR ftsi1, ftsi2;
00175   CHARSET_INFO *cs=info->s->keyinfo[keynr].seg->charset;
00176   DBUG_ENTER("_mi_ft_cmp");
00177   _mi_ft_segiterator_init(info, keynr, rec1, &ftsi1);
00178   _mi_ft_segiterator_init(info, keynr, rec2, &ftsi2);
00179 
00180   while (_mi_ft_segiterator(&ftsi1) && _mi_ft_segiterator(&ftsi2))
00181   {
00182     if ((ftsi1.pos != ftsi2.pos) &&
00183         (!ftsi1.pos || !ftsi2.pos ||
00184          mi_compare_text(cs, (uchar*) ftsi1.pos,ftsi1.len,
00185                          (uchar*) ftsi2.pos,ftsi2.len,0,0)))
00186       DBUG_RETURN(THOSE_TWO_DAMN_KEYS_ARE_REALLY_DIFFERENT);
00187   }
00188   DBUG_RETURN(GEE_THEY_ARE_ABSOLUTELY_IDENTICAL);
00189 }

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uint _mi_ft_convert_to_ft2	(	MI_INFO *	,
		uint	,
		uchar *
	)

Definition at line 305 of file ft_update.c.

References _mi_ck_delete(), _mi_ck_real_write_btree(), _mi_dpointer(), _mi_new(), _mi_write_keypage(), st_mi_keydef::block_length, st_myisam_info::buff, st_myisam_info::buff_used, DBUG_ENTER, DBUG_RETURN, DFLT_INIT_HITS, dynamic_array_ptr, st_dynamic_array::elements, st_myisam_info::ft1_to_ft2, st_mi_isam_share::ft2_keyinfo, ft_intXstore, get_key_full_length_rdonly, HA_FT_WLEN, HA_OFFSET_ERROR, key_length, keyinfo, st_mi_keydef::keylength, memcpy, mi_putint, st_myisam_info::page_changed, st_myisam_info::s, SEARCH_SAME, and set_if_smaller.

Referenced by _mi_ck_write_btree().

00306 {
00307   my_off_t root;
00308   DYNAMIC_ARRAY *da=info->ft1_to_ft2;
00309   MI_KEYDEF *keyinfo=&info->s->ft2_keyinfo;
00310   uchar *key_ptr= (uchar*) dynamic_array_ptr(da, 0), *end;
00311   uint length, key_length;
00312   DBUG_ENTER("_mi_ft_convert_to_ft2");
00313 
00314   /* we'll generate one pageful at once, and insert the rest one-by-one */
00315   /* calculating the length of this page ...*/
00316   length=(keyinfo->block_length-2) / keyinfo->keylength;
00317   set_if_smaller(length, da->elements);
00318   length=length * keyinfo->keylength;
00319 
00320   get_key_full_length_rdonly(key_length, key);
00321   while (_mi_ck_delete(info, keynr, key, key_length) == 0)
00322   {
00323     /*
00324       nothing to do here.
00325       _mi_ck_delete() will populate info->ft1_to_ft2 with deleted keys
00326      */
00327   }
00328 
00329   /* creating pageful of keys */
00330   mi_putint(info->buff,length+2,0);
00331   memcpy(info->buff+2, key_ptr, length);
00332   info->buff_used=info->page_changed=1;           /* info->buff is used */
00333   if ((root= _mi_new(info,keyinfo,DFLT_INIT_HITS)) == HA_OFFSET_ERROR ||
00334       _mi_write_keypage(info,keyinfo,root,DFLT_INIT_HITS,info->buff))
00335     DBUG_RETURN(-1);
00336 
00337   /* inserting the rest of key values */
00338   end= (uchar*) dynamic_array_ptr(da, da->elements);
00339   for (key_ptr+=length; key_ptr < end; key_ptr+=keyinfo->keylength)
00340     if(_mi_ck_real_write_btree(info, keyinfo, key_ptr, 0, &root, SEARCH_SAME))
00341       DBUG_RETURN(-1);
00342 
00343   /* now, writing the word key entry */
00344   ft_intXstore(key+key_length, - (int) da->elements);
00345   _mi_dpointer(info, key+key_length+HA_FT_WLEN, root);
00346 
00347   DBUG_RETURN(_mi_ck_real_write_btree(info,
00348                                      info->s->keyinfo+keynr,
00349                                      key, 0,
00350                                      &info->s->state.key_root[keynr],
00351                                      SEARCH_SAME));
00352 }

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int _mi_ft_del	(	MI_INFO *	,
		uint	,
		byte *	,
		const byte *	,
		my_off_t
	)

Definition at line 264 of file ft_update.c.

References _mi_ft_erase(), _mi_ft_parserecord(), DBUG_ENTER, DBUG_PRINT, DBUG_RETURN, error, free_root(), st_myisam_info::ft_memroot, MY_MARK_BLOCKS_FREE, and MYF.

00266 {
00267   int error= -1;
00268   FT_WORD *wlist;
00269   DBUG_ENTER("_mi_ft_del");
00270   DBUG_PRINT("enter",("keynr: %d",keynr));
00271 
00272   if ((wlist=_mi_ft_parserecord(info, keynr, record, &info->ft_memroot)))
00273     error=_mi_ft_erase(info,keynr,keybuf,wlist,pos);
00274 
00275   free_root(&info->ft_memroot, MYF(MY_MARK_BLOCKS_FREE));
00276   DBUG_PRINT("exit",("Return: %d",error));
00277   DBUG_RETURN(error);
00278 }

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Variable Documentation

const HA_KEYSEG ft_keysegs[FT_SEGS]

Definition at line 26 of file ft_static.c.

Referenced by mi_open().

Generated on Sat Sep 9 17:58:24 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

mysql/src/5.1-dbg/storage/myisam/fulltext.h File Reference

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation