23
23
str is a (long) to record position where 0 is the first position.
26
#include <drizzled/server_includes.h>
27
#include <drizzled/drizzled_error_messages.h>
26
#include "mysql_priv.h"
29
30
#define FCOMP 17 /* Bytes for a packed field */
31
static unsigned char * pack_screens(List<Create_field> &create_fields,
32
uint32_t *info_length, uint32_t *screens, bool small_file);
33
static uint32_t pack_keys(unsigned char *keybuff,uint32_t key_count, KEY *key_info,
32
static uchar * pack_screens(List<Create_field> &create_fields,
33
uint *info_length, uint *screens, bool small_file);
34
static uint pack_keys(uchar *keybuff,uint key_count, KEY *key_info,
34
35
ulong data_offset);
35
static bool pack_header(unsigned char *forminfo,
36
static bool pack_header(uchar *forminfo,enum legacy_db_type table_type,
36
37
List<Create_field> &create_fields,
37
uint32_t info_length, uint32_t screens, uint32_t table_options,
38
uint info_length, uint screens, uint table_options,
38
39
ulong data_offset, handler *file);
39
static uint32_t get_interval_id(uint32_t *int_count,List<Create_field> &create_fields,
40
static uint get_interval_id(uint *int_count,List<Create_field> &create_fields,
40
41
Create_field *last_field);
41
42
static bool pack_fields(File file, List<Create_field> &create_fields,
42
43
ulong data_offset);
43
44
static bool make_empty_rec(THD *thd, int file, enum legacy_db_type table_type,
44
uint32_t table_options,
45
46
List<Create_field> &create_fields,
46
uint32_t reclength, ulong data_offset,
47
uint reclength, ulong data_offset,
56
57
struct Pack_header_error_handler: public Internal_error_handler
58
virtual bool handle_error(uint32_t sql_errno,
59
virtual bool handle_error(uint sql_errno,
59
60
const char *message,
60
DRIZZLE_ERROR::enum_warning_level level,
61
MYSQL_ERROR::enum_warning_level level,
63
Pack_header_error_handler() :is_handled(false) {}
64
Pack_header_error_handler() :is_handled(FALSE) {}
68
69
Pack_header_error_handler::
69
handle_error(uint32_t sql_errno,
70
handle_error(uint sql_errno,
70
71
const char * /* message */,
71
DRIZZLE_ERROR::enum_warning_level /* level */,
72
MYSQL_ERROR::enum_warning_level /* level */,
74
75
is_handled= (sql_errno == ER_TOO_MANY_FIELDS);
99
100
const char *db, const char *table,
100
101
HA_CREATE_INFO *create_info,
101
102
List<Create_field> &create_fields,
102
uint32_t keys, KEY *key_info,
103
uint keys, KEY *key_info,
103
104
handler *db_file)
105
106
LEX_STRING str_db_type;
106
uint32_t reclength, info_length, screens, key_info_length, maxlength, tmp_len;
107
uint reclength, info_length, screens, key_info_length, maxlength, tmp_len;
107
108
ulong key_buff_length;
109
110
ulong filepos, data_offset;
110
unsigned char fileinfo[64],forminfo[288],*keybuff;
111
uchar fileinfo[64],forminfo[288],*keybuff;
111
112
TYPELIB formnames;
112
unsigned char *screen_buff;
114
const uint32_t format_section_header_size= 8;
115
uint32_t format_section_len;
115
const uint format_section_header_size= 8;
116
uint format_section_len;
116
117
Pack_header_error_handler pack_header_error_handler;
130
131
thd->push_internal_handler(&pack_header_error_handler);
132
error= pack_header(forminfo,
133
error= pack_header(forminfo, ha_legacy_type(create_info->db_type),
133
134
create_fields,info_length,
134
135
screens, create_info->table_options,
135
136
data_offset, db_file);
142
my_free(screen_buff, MYF(0));
142
143
if (! pack_header_error_handler.is_handled)
145
146
// Try again without UNIREG screens (to get more columns)
146
147
if (!(screen_buff=pack_screens(create_fields,&info_length,&screens,1)))
148
if (pack_header(forminfo,
149
if (pack_header(forminfo, ha_legacy_type(create_info->db_type),
149
150
create_fields,info_length,
150
151
screens, create_info->table_options, data_offset, db_file))
153
my_free(screen_buff, MYF(0));
184
185
if (tmp_len < create_info->comment.length)
186
187
my_error(ER_WRONG_STRING_LENGTH, MYF(0),
187
create_info->comment.str,"Table COMMENT",
188
create_info->comment.str,"TABLE COMMENT",
188
189
(uint) TABLE_COMMENT_MAXLEN);
190
my_free(screen_buff,MYF(0));
200
201
strmake((char*) forminfo+47, create_info->comment.str ?
201
202
create_info->comment.str : "", create_info->comment.length);
202
forminfo[46]=(unsigned char) create_info->comment.length;
203
forminfo[46]=(uchar) create_info->comment.length;
203
204
#ifdef EXTRA_DEBUG
205
206
EXTRA_DEBUG causes strmake() to initialize its buffer behind the
206
207
payload with a magic value to detect wrong buffer-sizes. We
207
208
explicitly zero that segment again.
209
memset(forminfo+47 + forminfo[46], 0, 61 - forminfo[46]);
210
memset((char*) forminfo+47 + forminfo[46], 0, 61 - forminfo[46]);
213
214
if ((file=create_frm(thd, file_name, db, table, reclength, fileinfo,
214
215
create_info, keys, key_info)) < 0)
217
my_free(screen_buff, MYF(0));
220
221
key_buff_length= uint4korr(fileinfo+47);
221
keybuff=(unsigned char*) my_malloc(key_buff_length, MYF(0));
222
keybuff=(uchar*) my_malloc(key_buff_length, MYF(0));
222
223
key_info_length= pack_keys(keybuff, keys, key_info, data_offset);
223
get_form_pos(file,fileinfo,&formnames);
224
VOID(get_form_pos(file,fileinfo,&formnames));
224
225
if (!(filepos=make_new_entry(file,fileinfo,&formnames,"")))
226
227
maxlength=(uint) next_io_size((ulong) (uint2korr(forminfo)+1000));
227
228
int2store(forminfo+2,maxlength);
228
229
int4store(fileinfo+10,(ulong) (filepos+maxlength));
229
fileinfo[26]= (unsigned char) test((create_info->max_rows == 1) &&
230
fileinfo[26]= (uchar) test((create_info->max_rows == 1) &&
230
231
(create_info->min_rows == 1) && (keys == 0));
231
232
int2store(fileinfo+28,key_info_length);
236
237
if (pwrite(file, fileinfo, 64, 0L) == 0 ||
237
238
pwrite(file, keybuff, key_info_length, (ulong) uint2korr(fileinfo+6)) == 0)
240
241
(ulong) uint2korr(fileinfo+6)+ (ulong) key_buff_length,
242
MY_SEEK_SET,MYF(0)));
242
243
if (make_empty_rec(thd,file,ha_legacy_type(create_info->db_type),
243
244
create_info->table_options,
244
245
create_fields,reclength, data_offset, db_file))
247
248
int2store(buff, create_info->connect_string.length);
248
if (my_write(file, (const unsigned char*)buff, 2, MYF(MY_NABP)) ||
249
my_write(file, (const unsigned char*)create_info->connect_string.str,
249
if (my_write(file, (const uchar*)buff, 2, MYF(MY_NABP)) ||
250
my_write(file, (const uchar*)create_info->connect_string.str,
250
251
create_info->connect_string.length, MYF(MY_NABP)))
253
254
int2store(buff, str_db_type.length);
254
if (my_write(file, (const unsigned char*)buff, 2, MYF(MY_NABP)) ||
255
my_write(file, (const unsigned char*)str_db_type.str,
255
if (my_write(file, (const uchar*)buff, 2, MYF(MY_NABP)) ||
256
my_write(file, (const uchar*)str_db_type.str,
256
257
str_db_type.length, MYF(MY_NABP)))
261
if (my_write(file, (unsigned char*) buff, 6, MYF_RW))
261
bzero((uchar*) buff, 6);
262
if (my_write(file, (uchar*) buff, 6, MYF_RW))
265
if (forminfo[46] == (unsigned char)255)
266
if (forminfo[46] == (uchar)255)
267
unsigned char comment_length_buff[2];
268
uchar comment_length_buff[2];
268
269
int2store(comment_length_buff,create_info->comment.length);
269
270
if (my_write(file, comment_length_buff, 2, MYF(MY_NABP)) ||
270
my_write(file, (unsigned char*)create_info->comment.str,
271
my_write(file, (uchar*)create_info->comment.str,
271
272
create_info->comment.length, MYF(MY_NABP)))
286
287
/* 2 bytes left for future use */
288
289
/* write header */
289
if (my_write(file, (const unsigned char*)buff, format_section_header_size, MYF_RW))
290
if (my_write(file, (const uchar*)buff, format_section_header_size, MYF_RW))
292
if (my_write(file, (const unsigned char*)buff, 1, MYF_RW))
293
if (my_write(file, (const uchar*)buff, 1, MYF_RW))
294
295
/* write column info, 1 byte per column */
296
297
List_iterator<Create_field> it(create_fields);
297
298
Create_field *field;
298
unsigned char column_format, write_byte;
299
uchar column_format, write_byte;
299
300
while ((field=it++))
301
column_format= (unsigned char)field->column_format();
302
column_format= (uchar)field->column_format();
302
303
write_byte= (column_format << COLUMN_FORMAT_SHIFT);
303
304
if (my_write(file, &write_byte, 1, MYF_RW))
308
my_seek(file,filepos,MY_SEEK_SET,MYF(0));
309
VOID(my_seek(file,filepos,MY_SEEK_SET,MYF(0)));
309
310
if (my_write(file, forminfo, 288, MYF_RW) ||
310
311
my_write(file, screen_buff, info_length, MYF_RW) ||
311
312
pack_fields(file, create_fields, data_offset))
315
my_free(screen_buff,MYF(0));
316
my_free(keybuff, MYF(0));
317
if (!(create_info->options & HA_LEX_CREATE_TMP_TABLE) &&
318
if (opt_sync_frm && !(create_info->options & HA_LEX_CREATE_TMP_TABLE) &&
318
319
(my_sync(file, MYF(MY_WME)) ||
319
320
my_sync_dir_by_file(file_name, MYF(MY_WME))))
375
376
const char *db, const char *table_name,
376
377
HA_CREATE_INFO *create_info,
377
378
List<Create_field> &create_fields,
378
uint32_t keys, KEY *key_info, handler *file)
379
uint keys, KEY *key_info, handler *file)
382
383
char frm_name[FN_REFLEN];
383
strxmov(frm_name, path, reg_ext, NULL);
384
strxmov(frm_name, path, reg_ext, NullS);
384
385
if (mysql_create_frm(thd, frm_name, db, table_name, create_info,
385
386
create_fields, keys, key_info, file))
407
408
/* Pack screens to a screen for save in a form-file */
409
static unsigned char *pack_screens(List<Create_field> &create_fields,
410
uint32_t *info_length, uint32_t *screens,
410
static uchar *pack_screens(List<Create_field> &create_fields,
411
uint *info_length, uint *screens,
414
uint32_t row,start_row,end_row,fields_on_screen;
415
uint32_t length,cols;
416
unsigned char *info,*pos,*start_screen;
417
uint32_t fields=create_fields.elements;
415
uint row,start_row,end_row,fields_on_screen;
417
uchar *info,*pos,*start_screen;
418
uint fields=create_fields.elements;
418
419
List_iterator<Create_field> it(create_fields);
444
445
length=(uint) (pos-start_screen);
445
446
int2store(start_screen,length);
446
start_screen[2]=(unsigned char) (fields_on_screen+1);
447
start_screen[3]=(unsigned char) (fields_on_screen);
447
start_screen[2]=(uchar) (fields_on_screen+1);
448
start_screen[3]=(uchar) (fields_on_screen);
450
451
start_screen=pos;
452
pos[0]= (unsigned char) start_row-2; /* Header string */
453
pos[1]= (unsigned char) (cols >> 2);
454
pos[2]= (unsigned char) (cols >> 1) +1;
453
pos[0]= (uchar) start_row-2; /* Header string */
454
pos[1]= (uchar) (cols >> 2);
455
pos[2]= (uchar) (cols >> 1) +1;
455
456
strfill((char *) pos+3,(uint) (cols >> 1),' ');
456
457
pos+=(cols >> 1)+4;
464
pos[0]=(unsigned char) row;
466
pos[2]=(unsigned char) (length+1);
467
pos=(unsigned char*) strmake((char*) pos+3,cfield->field_name,length)+1;
467
pos[2]=(uchar) (length+1);
468
pos=(uchar*) strmake((char*) pos+3,cfield->field_name,length)+1;
469
cfield->row=(uint8_t) row;
470
cfield->col=(uint8_t) (length+1);
471
cfield->sc_length=(uint8_t) cmin(cfield->length,(uint32_t)cols-(length+2));
470
cfield->row=(uint8) row;
471
cfield->col=(uint8) (length+1);
472
cfield->sc_length=(uint8) min(cfield->length,cols-(length+2));
473
474
length=(uint) (pos-start_screen);
474
475
int2store(start_screen,length);
475
start_screen[2]=(unsigned char) (row-start_row+2);
476
start_screen[3]=(unsigned char) (row-start_row+1);
476
start_screen[2]=(uchar) (row-start_row+2);
477
start_screen[3]=(uchar) (row-start_row+1);
478
479
*info_length=(uint) (pos-info);
483
484
/* Pack keyinfo and keynames to keybuff for save in form-file. */
485
static uint32_t pack_keys(unsigned char *keybuff, uint32_t key_count, KEY *keyinfo,
486
static uint pack_keys(uchar *keybuff, uint key_count, KEY *keyinfo,
486
487
ulong data_offset)
488
uint32_t key_parts,length;
489
unsigned char *pos, *keyname_pos;
489
uint key_parts,length;
490
uchar *pos, *keyname_pos;
491
492
KEY_PART_INFO *key_part,*key_part_end;
498
499
int2store(pos, (key->flags ^ HA_NOSAME));
499
500
int2store(pos+2,key->key_length);
500
pos[4]= (unsigned char) key->key_parts;
501
pos[5]= (unsigned char) key->algorithm;
501
pos[4]= (uchar) key->key_parts;
502
pos[5]= (uchar) key->algorithm;
502
503
int2store(pos+6, key->block_size);
504
505
key_parts+=key->key_parts;
520
521
/* Save keynames */
522
*pos++=(unsigned char) NAMES_SEP_CHAR;
523
*pos++=(uchar) NAMES_SEP_CHAR;
523
524
for (key=keyinfo ; key != end ; key++)
525
unsigned char *tmp=(unsigned char*) my_stpcpy((char*) pos,key->name);
526
*tmp++= (unsigned char) NAMES_SEP_CHAR;
526
uchar *tmp=(uchar*) strmov((char*) pos,key->name);
527
*tmp++= (uchar) NAMES_SEP_CHAR;
560
561
/* Make formheader */
562
static bool pack_header(unsigned char *forminfo,
563
static bool pack_header(uchar *forminfo,
564
enum legacy_db_type table_type __attribute__((__unused__)),
563
565
List<Create_field> &create_fields,
564
uint32_t info_length, uint32_t screens, uint32_t table_options,
566
uint info_length, uint screens, uint table_options,
565
567
ulong data_offset, handler *file)
567
uint32_t length,int_count,int_length,no_empty, int_parts;
568
uint32_t time_stamp_pos,null_fields;
569
uint length,int_count,int_length,no_empty, int_parts;
570
uint time_stamp_pos,null_fields;
569
571
ulong reclength, totlength, n_length, com_length;
648
650
(field->interval->count+1));
649
651
field->interval->type_names[field->interval->count]= 0;
650
652
field->interval->type_lengths=
651
(uint32_t *) sql_alloc(sizeof(uint) * field->interval->count);
653
(uint *) sql_alloc(sizeof(uint) * field->interval->count);
653
for (uint32_t pos= 0; pos < field->interval->count; pos++)
655
for (uint pos= 0; pos < field->interval->count; pos++)
656
658
const char *src= field->save_interval->type_names[pos];
658
660
length= field->save_interval->type_lengths[pos];
659
661
hex_length= length * 2;
660
662
field->interval->type_lengths[pos]= hex_length;
696
memset(forminfo, 0, 288);
698
bzero((char*)forminfo,288);
697
699
length=(info_length+create_fields.elements*FCOMP+288+n_length+int_length+
699
701
int2store(forminfo,length);
700
forminfo[256] = (uint8_t) screens;
702
forminfo[256] = (uint8) screens;
701
703
int2store(forminfo+258,create_fields.elements);
702
704
int2store(forminfo+260,info_length);
703
705
int2store(forminfo+262,totlength);
764
766
while ((field=it++))
767
buff[0]= (unsigned char) field->row;
768
buff[1]= (unsigned char) field->col;
769
buff[2]= (unsigned char) field->sc_length;
769
buff[0]= (uchar) field->row;
770
buff[1]= (uchar) field->col;
771
buff[2]= (uchar) field->sc_length;
770
772
int2store(buff+3, field->length);
771
773
/* The +1 is here becasue the col offset in .frm file have offset 1 */
772
774
recpos= field->offset+1 + (uint) data_offset;
773
775
int3store(buff+5,recpos);
774
776
int2store(buff+8,field->pack_flag);
775
777
int2store(buff+10,field->unireg_check);
776
buff[12]= (unsigned char) field->interval_id;
777
buff[13]= (unsigned char) field->sql_type;
778
buff[12]= (uchar) field->interval_id;
779
buff[13]= (uchar) field->sql_type;
778
780
if (field->charset)
779
buff[14]= (unsigned char) field->charset->number;
781
buff[14]= (uchar) field->charset->number;
781
783
buff[14]= 0; // Numerical
782
784
int2store(buff+15, field->comment.length);
789
791
/* Write fieldnames */
790
buff[0]=(unsigned char) NAMES_SEP_CHAR;
792
buff[0]=(uchar) NAMES_SEP_CHAR;
791
793
if (my_write(file, buff, 1, MYF_RW))
795
797
while ((field=it++))
797
char *pos= my_stpcpy((char*) buff,field->field_name);
799
char *pos= strmov((char*) buff,field->field_name);
798
800
*pos++=NAMES_SEP_CHAR;
799
801
if (i == create_fields.elements-1)
817
819
unsigned char sep= 0;
818
820
unsigned char occ[256];
820
822
unsigned char *val= NULL;
822
memset(occ, 0, sizeof(occ));
824
bzero(occ, sizeof(occ));
824
826
for (i=0; (val= (unsigned char*) field->interval->type_names[i]); i++)
825
for (uint32_t j = 0; j < field->interval->type_lengths[i]; j++)
827
for (uint j = 0; j < field->interval->type_lengths[i]; j++)
826
828
occ[(unsigned int) (val[j])]= 1;
828
830
if (!occ[(unsigned char)NAMES_SEP_CHAR])
880
882
/* save an empty record on start of formfile */
882
884
static bool make_empty_rec(THD *thd, File file,
883
enum legacy_db_type table_type __attribute__((unused)),
884
uint32_t table_options,
885
enum legacy_db_type table_type __attribute__((__unused__)),
885
887
List<Create_field> &create_fields,
887
889
ulong data_offset,
888
890
handler *handler)
891
893
Field::utype type;
893
unsigned char *buff,*null_pos;
895
uchar *buff,*null_pos;
895
897
TABLE_SHARE share;
896
898
Create_field *field;
897
899
enum_check_fields old_count_cuted_fields= thd->count_cuted_fields;
900
902
/* We need a table to generate columns for default values */
901
memset(&table, 0, sizeof(table));
902
memset(&share, 0, sizeof(share));
903
bzero((char*) &table, sizeof(table));
904
bzero((char*) &share, sizeof(share));
905
if (!(buff=(unsigned char*) my_malloc((size_t) reclength,MYF(MY_WME | MY_ZEROFILL))))
907
if (!(buff=(uchar*) my_malloc((size_t) reclength,MYF(MY_WME | MY_ZEROFILL))))
970
else if (regfield->real_type() == DRIZZLE_TYPE_ENUM &&
972
else if (regfield->real_type() == MYSQL_TYPE_ENUM &&
971
973
(field->flags & NOT_NULL_FLAG))
973
975
regfield->set_notnull();
974
regfield->store((int64_t) 1, true);
976
regfield->store((int64_t) 1, TRUE);
976
978
else if (type == Field::YES) // Old unireg type
977
979
regfield->store(ER(ER_YES),(uint) strlen(ER(ER_YES)),system_charset_info);
987
989
of 8 there are no unused bits.
989
991
if (null_count & 7)
990
*(null_pos + null_count / 8)|= ~(((unsigned char) 1 << (null_count & 7)) - 1);
992
*(null_pos + null_count / 8)|= ~(((uchar) 1 << (null_count & 7)) - 1);
992
994
error= my_write(file, buff, (size_t) reclength,MYF_RW) != 0;
997
my_free(buff, MYF(MY_FAE));
996
998
thd->count_cuted_fields= old_count_cuted_fields;
998
1000
} /* make_empty_rec */