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  • Committer: Brian Aker
  • Date: 2009-08-18 07:19:56 UTC
  • mfrom: (1116.1.3 stewart)
  • mto: This revision was merged to the branch mainline in revision 1118.
  • Revision ID: brian@gaz-20090818071956-nfpoe9rp3i7p50kx
Merge my branch from Stewart into one branch

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plugin/myisam/mi_open.cc
11
11
 
12
12
   You should have received a copy of the GNU General Public License
13
13
   along with this program; if not, write to the Free Software
14
 
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
 
14
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
15
15
 
16
16
/* open a isam-database */
17
17
 
18
 
#include "myisam_priv.h"
 
18
#include "myisamdef.h"
 
19
#include <mystrings/m_ctype.h>
 
20
#include <mystrings/m_string.h>
 
21
#include <drizzled/util/test.h>
19
22
 
20
23
#include <string.h>
21
24
#include <algorithm>
22
 
#include <memory>
23
 
#include <boost/scoped_ptr.hpp>
24
 
#include <boost/scoped_array.hpp>
25
 
 
26
 
#include <drizzled/charset_info.h>
27
 
#include <drizzled/internal/m_string.h>
28
 
#include <drizzled/util/test.h>
29
 
#include <drizzled/global_charset_info.h>
30
 
#include <drizzled/charset.h>
31
 
#include <drizzled/memory/multi_malloc.h>
32
 
 
33
25
 
34
26
using namespace std;
35
 
using namespace drizzled;
36
27
 
37
28
static void setup_key_functions(MI_KEYDEF *keyinfo);
38
 
static unsigned char *mi_keydef_read(unsigned char *ptr, MI_KEYDEF *keydef);
39
 
static unsigned char *mi_keyseg_read(unsigned char *ptr, HA_KEYSEG *keyseg);
40
 
static unsigned char *mi_recinfo_read(unsigned char *ptr, MI_COLUMNDEF *recinfo);
41
 
static uint64_t mi_safe_mul(uint64_t a, uint64_t b);
42
 
static unsigned char *mi_state_info_read(unsigned char *ptr, MI_STATE_INFO *state);
43
 
static unsigned char *mi_uniquedef_read(unsigned char *ptr, MI_UNIQUEDEF *def);
44
 
static unsigned char *my_n_base_info_read(unsigned char *ptr, MI_BASE_INFO *base);
45
29
 
46
30
#define disk_pos_assert(pos, end_pos) \
47
31
if (pos > end_pos)             \
48
32
{                              \
49
 
  errno=HA_ERR_CRASHED;     \
 
33
  my_errno=HA_ERR_CRASHED;     \
50
34
  goto err;                    \
51
35
}
52
36
 
79
63
  have an open count of 0.
80
64
******************************************************************************/
81
65
 
82
 
MI_INFO *mi_open(const drizzled::identifier::Table &identifier, int mode, uint32_t open_flags)
 
66
MI_INFO *mi_open(const char *name, int mode, uint32_t open_flags)
83
67
{
84
68
  int lock_error,kfile,open_mode,save_errno,have_rtree=0;
85
69
  uint32_t i,j,len,errpos,head_length,base_pos,offset,info_length,keys,
89
73
  unsigned char *disk_cache= NULL;
90
74
  unsigned char *disk_pos, *end_pos;
91
75
  MI_INFO info,*m_info,*old_info;
92
 
  boost::scoped_ptr<MYISAM_SHARE> share_buff_ap(new MYISAM_SHARE);
93
 
  MYISAM_SHARE &share_buff= *share_buff_ap.get();
94
 
  MYISAM_SHARE *share;
95
 
  boost::scoped_array<ulong> rec_per_key_part_ap(new ulong[HA_MAX_POSSIBLE_KEY*MI_MAX_KEY_SEG]);
96
 
  ulong *rec_per_key_part= rec_per_key_part_ap.get();
97
 
  internal::my_off_t key_root[HA_MAX_POSSIBLE_KEY],key_del[MI_MAX_KEY_BLOCK_SIZE];
 
76
  MYISAM_SHARE share_buff,*share;
 
77
  ulong rec_per_key_part[HA_MAX_POSSIBLE_KEY*MI_MAX_KEY_SEG];
 
78
  my_off_t key_root[HA_MAX_POSSIBLE_KEY],key_del[MI_MAX_KEY_BLOCK_SIZE];
98
79
  uint64_t max_key_file_length, max_data_file_length;
99
80
 
100
81
  kfile= -1;
103
84
  head_length=sizeof(share_buff.state.header);
104
85
  memset(&info, 0, sizeof(info));
105
86
 
106
 
  (void)internal::fn_format(org_name,
107
 
                            identifier.getPath().c_str(), 
108
 
                            "",
109
 
                            MI_NAME_IEXT,
110
 
                            MY_UNPACK_FILENAME);
 
87
  (void)fn_format(org_name,name,"",MI_NAME_IEXT, MY_UNPACK_FILENAME);
111
88
  if (!realpath(org_name,rp_buff))
112
 
    internal::my_load_path(rp_buff,org_name, NULL);
 
89
    my_load_path(rp_buff,org_name, NULL);
113
90
  rp_buff[FN_REFLEN-1]= '\0';
114
91
  strcpy(name_buff,rp_buff);
115
 
  THR_LOCK_myisam.lock();
 
92
  pthread_mutex_lock(&THR_LOCK_myisam);
116
93
  if (!(old_info=test_if_reopen(name_buff)))
117
94
  {
118
95
    share= &share_buff;
120
97
    share_buff.state.rec_per_key_part=rec_per_key_part;
121
98
    share_buff.state.key_root=key_root;
122
99
    share_buff.state.key_del=key_del;
123
 
    share_buff.setKeyCache();
 
100
    share_buff.key_cache= dflt_key_cache;
124
101
 
125
 
    if ((kfile=internal::my_open(name_buff,(open_mode=O_RDWR),MYF(0))) < 0)
 
102
    if ((kfile=my_open(name_buff,(open_mode=O_RDWR),MYF(0))) < 0)
126
103
    {
127
104
      if ((errno != EROFS && errno != EACCES) ||
128
105
          mode != O_RDONLY ||
129
 
          (kfile=internal::my_open(name_buff,(open_mode=O_RDONLY),MYF(0))) < 0)
 
106
          (kfile=my_open(name_buff,(open_mode=O_RDONLY),MYF(0))) < 0)
130
107
        goto err;
131
108
    }
132
109
    share->mode=open_mode;
133
110
    errpos=1;
134
 
    if (internal::my_read(kfile, share->state.header.file_version, head_length,
 
111
    if (my_read(kfile, share->state.header.file_version, head_length,
135
112
                MYF(MY_NABP)))
136
113
    {
137
 
      errno= HA_ERR_NOT_A_TABLE;
 
114
      my_errno= HA_ERR_NOT_A_TABLE;
138
115
      goto err;
139
116
    }
140
117
    if (memcmp(share->state.header.file_version, myisam_file_magic, 4))
141
118
    {
142
 
      errno=HA_ERR_NOT_A_TABLE;
 
119
      my_errno=HA_ERR_NOT_A_TABLE;
143
120
      goto err;
144
121
    }
145
122
    share->options= mi_uint2korr(share->state.header.options);
146
 
    static const uint64_t OLD_FILE_OPTIONS= HA_OPTION_PACK_RECORD |
147
 
            HA_OPTION_PACK_KEYS |
148
 
            HA_OPTION_COMPRESS_RECORD | HA_OPTION_READ_ONLY_DATA |
149
 
            HA_OPTION_TEMP_COMPRESS_RECORD |
150
 
            HA_OPTION_TMP_TABLE;
151
 
    if (share->options & ~OLD_FILE_OPTIONS)
 
123
    if (share->options &
 
124
        ~(HA_OPTION_PACK_RECORD | HA_OPTION_PACK_KEYS |
 
125
          HA_OPTION_COMPRESS_RECORD | HA_OPTION_READ_ONLY_DATA |
 
126
          HA_OPTION_TEMP_COMPRESS_RECORD |
 
127
          HA_OPTION_TMP_TABLE
 
128
          ))
152
129
    {
153
 
      errno=HA_ERR_OLD_FILE;
 
130
      my_errno=HA_ERR_OLD_FILE;
154
131
      goto err;
155
132
    }
156
133
 
161
138
    if (!strcmp(name_buff, org_name) || sym_link_size == -1)
162
139
      (void) strcpy(index_name, org_name);
163
140
    *strrchr(org_name, '.')= '\0';
164
 
    (void) internal::fn_format(data_name,org_name,"",MI_NAME_DEXT,
 
141
    (void) fn_format(data_name,org_name,"",MI_NAME_DEXT,
165
142
                     MY_APPEND_EXT|MY_UNPACK_FILENAME|MY_RESOLVE_SYMLINKS);
166
143
 
167
144
    info_length=mi_uint2korr(share->state.header.header_length);
168
145
    base_pos=mi_uint2korr(share->state.header.base_pos);
169
146
    if (!(disk_cache= (unsigned char*) malloc(info_length+128)))
170
147
    {
171
 
      errno=ENOMEM;
 
148
      my_errno=ENOMEM;
172
149
      goto err;
173
150
    }
174
151
    end_pos=disk_cache+info_length;
176
153
 
177
154
    lseek(kfile,0,SEEK_SET);
178
155
    errpos=3;
179
 
    if (internal::my_read(kfile,disk_cache,info_length,MYF(MY_NABP)))
 
156
    if (my_read(kfile,disk_cache,info_length,MYF(MY_NABP)))
180
157
    {
181
 
      errno=HA_ERR_CRASHED;
 
158
      my_errno=HA_ERR_CRASHED;
182
159
      goto err;
183
160
    }
184
161
    len=mi_uint2korr(share->state.header.state_info_length);
194
171
    disk_pos= my_n_base_info_read(disk_cache + base_pos, &share->base);
195
172
    share->state.state_length=base_pos;
196
173
 
197
 
    if (share->state.changed & STATE_CRASHED)
 
174
    if (!(open_flags & HA_OPEN_FOR_REPAIR) &&
 
175
        ((share->state.changed & STATE_CRASHED) ||
 
176
         ((open_flags & HA_OPEN_ABORT_IF_CRASHED) &&
 
177
          (share->state.open_count))))
198
178
    {
199
 
      errno=((share->state.changed & STATE_CRASHED_ON_REPAIR) ?
 
179
      my_errno=((share->state.changed & STATE_CRASHED_ON_REPAIR) ?
200
180
                HA_ERR_CRASHED_ON_REPAIR : HA_ERR_CRASHED_ON_USAGE);
201
181
      goto err;
202
182
    }
204
184
    /* sanity check */
205
185
    if (share->base.keystart > 65535 || share->base.rec_reflength > 8)
206
186
    {
207
 
      errno=HA_ERR_CRASHED;
 
187
      my_errno=HA_ERR_CRASHED;
208
188
      goto err;
209
189
    }
210
190
 
211
191
    if (share->base.max_key_length > MI_MAX_KEY_BUFF || keys > MI_MAX_KEY ||
212
192
        key_parts > MI_MAX_KEY * MI_MAX_KEY_SEG)
213
193
    {
214
 
      errno=HA_ERR_UNSUPPORTED;
 
194
      my_errno=HA_ERR_UNSUPPORTED;
215
195
      goto err;
216
196
    }
217
197
 
230
210
#endif
231
211
    if (share->base.raid_type)
232
212
    {
233
 
      errno=HA_ERR_UNSUPPORTED;
 
213
      my_errno=HA_ERR_UNSUPPORTED;
234
214
      goto err;
235
215
    }
236
 
    share->base.max_data_file_length=(internal::my_off_t) max_data_file_length;
237
 
    share->base.max_key_file_length=(internal::my_off_t) max_key_file_length;
 
216
    share->base.max_data_file_length=(my_off_t) max_data_file_length;
 
217
    share->base.max_key_file_length=(my_off_t) max_key_file_length;
238
218
 
239
219
    if (share->options & HA_OPTION_COMPRESS_RECORD)
240
220
      share->base.max_key_length+=2;    /* For safety */
242
222
    /* Add space for node pointer */
243
223
    share->base.max_key_length+= share->base.key_reflength;
244
224
 
245
 
    if (!drizzled::memory::multi_malloc(false,
246
 
           &share,sizeof(*share),
247
 
           &share->state.rec_per_key_part,sizeof(long)*key_parts,
248
 
           &share->keyinfo,keys*sizeof(MI_KEYDEF),
249
 
           &share->uniqueinfo,uniques*sizeof(MI_UNIQUEDEF),
250
 
           &share->keyparts,
251
 
           (key_parts+unique_key_parts+keys+uniques) * sizeof(HA_KEYSEG),
252
 
           &share->rec, (share->base.fields+1)*sizeof(MI_COLUMNDEF),
253
 
           &share->blobs,sizeof(MI_BLOB)*share->base.blobs,
254
 
           &share->unique_file_name,strlen(name_buff)+1,
255
 
           &share->index_file_name,strlen(index_name)+1,
256
 
           &share->data_file_name,strlen(data_name)+1,
257
 
           &share->state.key_root,keys*sizeof(uint64_t),
258
 
           &share->state.key_del,
259
 
           (share->state.header.max_block_size_index*sizeof(uint64_t)),
260
 
           NULL))
 
225
    if (!my_multi_malloc(MY_WME,
 
226
                         &share,sizeof(*share),
 
227
                         &share->state.rec_per_key_part,sizeof(long)*key_parts,
 
228
                         &share->keyinfo,keys*sizeof(MI_KEYDEF),
 
229
                         &share->uniqueinfo,uniques*sizeof(MI_UNIQUEDEF),
 
230
                         &share->keyparts,
 
231
                         (key_parts+unique_key_parts+keys+uniques) *
 
232
                         sizeof(HA_KEYSEG),
 
233
                         &share->rec,
 
234
                         (share->base.fields+1)*sizeof(MI_COLUMNDEF),
 
235
                         &share->blobs,sizeof(MI_BLOB)*share->base.blobs,
 
236
                         &share->unique_file_name,strlen(name_buff)+1,
 
237
                         &share->index_file_name,strlen(index_name)+1,
 
238
                         &share->data_file_name,strlen(data_name)+1,
 
239
                         &share->state.key_root,keys*sizeof(my_off_t),
 
240
                         &share->state.key_del,
 
241
                         (share->state.header.max_block_size_index*sizeof(my_off_t)),
 
242
                         &share->key_root_lock,sizeof(pthread_rwlock_t)*keys,
 
243
                         &share->mmap_lock,sizeof(pthread_rwlock_t),
 
244
                         NULL))
261
245
      goto err;
262
246
    errpos=4;
263
247
    *share=share_buff;
264
248
    memcpy(share->state.rec_per_key_part, rec_per_key_part,
265
249
           sizeof(long)*key_parts);
266
250
    memcpy(share->state.key_root, key_root,
267
 
           sizeof(internal::my_off_t)*keys);
 
251
           sizeof(my_off_t)*keys);
268
252
    memcpy(share->state.key_del, key_del,
269
 
           sizeof(internal::my_off_t) * share->state.header.max_block_size_index);
 
253
           sizeof(my_off_t) * share->state.header.max_block_size_index);
270
254
    strcpy(share->unique_file_name, name_buff);
271
255
    share->unique_name_length= strlen(name_buff);
272
256
    strcpy(share->index_file_name,  index_name);
290
274
              ! (share->options & (HA_OPTION_COMPRESS_RECORD |
291
275
                                   HA_OPTION_PACK_RECORD)))
292
276
          {
293
 
            errno= HA_ERR_CRASHED;
 
277
            my_errno= HA_ERR_CRASHED;
294
278
            goto err;
295
279
          }
296
280
          if (pos->type == HA_KEYTYPE_TEXT ||
301
285
              pos->charset=default_charset_info;
302
286
            else if (!(pos->charset= get_charset(pos->language)))
303
287
            {
304
 
              errno=HA_ERR_UNKNOWN_CHARSET;
 
288
              my_errno=HA_ERR_UNKNOWN_CHARSET;
305
289
              goto err;
306
290
            }
307
291
          }
333
317
              pos->charset=default_charset_info;
334
318
            else if (!(pos->charset= get_charset(pos->language)))
335
319
            {
336
 
              errno=HA_ERR_UNKNOWN_CHARSET;
 
320
              my_errno=HA_ERR_UNKNOWN_CHARSET;
337
321
              goto err;
338
322
            }
339
323
          }
365
349
    share->rec[i].type=(int) FIELD_LAST;        /* End marker */
366
350
    if (offset > share->base.reclength)
367
351
    {
368
 
      errno= HA_ERR_CRASHED;
 
352
      /* purecov: begin inspected */
 
353
      my_errno= HA_ERR_CRASHED;
369
354
      goto err;
 
355
      /* purecov: end */
370
356
    }
371
357
 
372
358
    if (! lock_error)
397
383
    disk_cache= NULL;
398
384
    mi_setup_functions(share);
399
385
    share->is_log_table= false;
400
 
    if (myisam_concurrent_insert)
 
386
    thr_lock_init(&share->lock);
 
387
    pthread_mutex_init(&share->intern_lock,MY_MUTEX_INIT_FAST);
 
388
    for (i=0; i<keys; i++)
 
389
      pthread_rwlock_init(&share->key_root_lock[i], NULL);
 
390
    pthread_rwlock_init(&share->mmap_lock, NULL);
 
391
    if (!thr_lock_inited)
 
392
    {
 
393
      /* Probably a single threaded program; Don't use concurrent inserts */
 
394
      myisam_concurrent_insert=0;
 
395
    }
 
396
    else if (myisam_concurrent_insert)
401
397
    {
402
398
      share->concurrent_insert=
403
399
        ((share->options & (HA_OPTION_READ_ONLY_DATA | HA_OPTION_TMP_TABLE |
406
402
         (open_flags & HA_OPEN_TMP_TABLE) || have_rtree) ? 0 : 1;
407
403
      if (share->concurrent_insert)
408
404
      {
409
 
        assert(0);
 
405
        share->lock.get_status= mi_get_status;
 
406
        share->lock.copy_status= mi_copy_status;
 
407
        share->lock.update_status= mi_update_status;
 
408
        share->lock.restore_status= mi_restore_status;
 
409
        share->lock.check_status= mi_check_status;
410
410
      }
411
411
    }
412
412
  }
415
415
    share= old_info->s;
416
416
    if (mode == O_RDWR && share->mode == O_RDONLY)
417
417
    {
418
 
      errno=EACCES;                             /* Can't open in write mode */
 
418
      my_errno=EACCES;                          /* Can't open in write mode */
419
419
      goto err;
420
420
    }
421
421
    if (mi_open_datafile(&info, share, old_info->dfile))
425
425
  }
426
426
 
427
427
  /* alloc and set up private structure parts */
428
 
  if (!drizzled::memory::multi_malloc(MY_WME,
429
 
         &m_info,sizeof(MI_INFO),
430
 
         &info.blobs,sizeof(MI_BLOB)*share->base.blobs,
431
 
         &info.buff,(share->base.max_key_block_length*2+
432
 
                     share->base.max_key_length),
433
 
         &info.lastkey,share->base.max_key_length*3+1,
434
 
         &info.first_mbr_key, share->base.max_key_length,
435
 
         &info.filename, identifier.getPath().length()+1,
436
 
         &info.rtree_recursion_state,have_rtree ? 1024 : 0,
437
 
         NULL))
 
428
  if (!my_multi_malloc(MY_WME,
 
429
                       &m_info,sizeof(MI_INFO),
 
430
                       &info.blobs,sizeof(MI_BLOB)*share->base.blobs,
 
431
                       &info.buff,(share->base.max_key_block_length*2+
 
432
                                   share->base.max_key_length),
 
433
                       &info.lastkey,share->base.max_key_length*3+1,
 
434
                       &info.first_mbr_key, share->base.max_key_length,
 
435
                       &info.filename,strlen(name)+1,
 
436
                       &info.rtree_recursion_state,have_rtree ? 1024 : 0,
 
437
                       NULL))
438
438
    goto err;
439
439
  errpos=6;
440
440
 
441
441
  if (!have_rtree)
442
442
    info.rtree_recursion_state= NULL;
443
443
 
444
 
  strcpy(info.filename, identifier.getPath().c_str());
 
444
  strcpy(info.filename,name);
445
445
  memcpy(info.blobs,share->blobs,sizeof(MI_BLOB)*share->base.blobs);
446
446
  info.lastkey2=info.lastkey+share->base.max_key_length;
447
447
 
462
462
  info.bulk_insert=0;
463
463
  info.errkey= -1;
464
464
  info.page_changed=1;
 
465
  pthread_mutex_lock(&share->intern_lock);
465
466
  info.read_record=share->read_record;
466
467
  share->reopen++;
467
468
  share->write_flag=MYF(MY_NABP | MY_WAIT_IF_FULL);
491
492
 
492
493
  share->delay_key_write= 1;
493
494
  info.state= &share->state.state;      /* Change global values by default */
 
495
  pthread_mutex_unlock(&share->intern_lock);
494
496
 
495
497
  /* Allocate buffer for one record */
496
498
 
497
499
  /* prerequisites: memset(info, 0) && info->s=share; are met. */
498
 
  if (!mi_alloc_rec_buff(&info, SIZE_MAX, &info.rec_buff))
 
500
  if (!mi_alloc_rec_buff(&info, -1, &info.rec_buff))
499
501
    goto err;
500
502
  memset(info.rec_buff, 0, mi_get_rec_buff_len(&info, info.rec_buff));
501
503
 
502
504
  *m_info=info;
 
505
  thr_lock_data_init(&share->lock,&m_info->lock,(void*) m_info);
503
506
  myisam_open_list.push_front(m_info);
504
507
 
505
 
  THR_LOCK_myisam.unlock();
 
508
  pthread_mutex_unlock(&THR_LOCK_myisam);
506
509
  return(m_info);
507
510
 
508
511
err:
509
512
  if (disk_cache != NULL)
510
513
    free(disk_cache);
511
 
  save_errno=errno ? errno : HA_ERR_END_OF_FILE;
 
514
  save_errno=my_errno ? my_errno : HA_ERR_END_OF_FILE;
512
515
  if ((save_errno == HA_ERR_CRASHED) ||
513
516
      (save_errno == HA_ERR_CRASHED_ON_USAGE) ||
514
517
      (save_errno == HA_ERR_CRASHED_ON_REPAIR))
515
 
    mi_report_error(save_errno, identifier.getPath().c_str());
 
518
    mi_report_error(save_errno, name);
516
519
  switch (errpos) {
517
520
  case 6:
518
521
    free((unsigned char*) m_info);
519
522
    /* fall through */
520
523
  case 5:
521
 
    internal::my_close(info.dfile,MYF(0));
 
524
    my_close(info.dfile,MYF(0));
522
525
    if (old_info)
523
526
      break;                                    /* Don't remove open table */
524
527
    /* fall through */
528
531
  case 3:
529
532
    /* fall through */
530
533
  case 1:
531
 
    internal::my_close(kfile,MYF(0));
 
534
    my_close(kfile,MYF(0));
532
535
    /* fall through */
533
536
  case 0:
534
537
  default:
535
538
    break;
536
539
  }
537
 
  THR_LOCK_myisam.unlock();
538
 
  errno=save_errno;
 
540
  pthread_mutex_unlock(&THR_LOCK_myisam);
 
541
  my_errno=save_errno;
539
542
  return (NULL);
540
543
} /* mi_open */
541
544
 
550
553
    unsigned char *newptr = *buf;
551
554
 
552
555
    /* to simplify initial init of info->rec_buf in mi_open and mi_extra */
553
 
    if (length == SIZE_MAX)
 
556
    if (length == (ulong) -1)
554
557
    {
555
558
      if (info->s->options & HA_OPTION_COMPRESS_RECORD)
556
559
        length= max(info->s->base.pack_reclength, info->s->max_pack_length);
578
581
}
579
582
 
580
583
 
581
 
static uint64_t mi_safe_mul(uint64_t a, uint64_t b)
 
584
uint64_t mi_safe_mul(uint64_t a, uint64_t b)
582
585
{
583
 
  uint64_t max_val= ~ (uint64_t) 0;             /* internal::my_off_t is unsigned */
 
586
  uint64_t max_val= ~ (uint64_t) 0;             /* my_off_t is unsigned */
584
587
 
585
588
  if (!a || max_val / a < b)
586
589
    return max_val;
687
690
   Function to save and store the header in the index file (.MYI)
688
691
*/
689
692
 
690
 
uint32_t mi_state_info_write(int file, MI_STATE_INFO *state, uint32_t pWrite)
 
693
uint32_t mi_state_info_write(File file, MI_STATE_INFO *state, uint32_t pWrite)
691
694
{
692
695
  unsigned char  buff[MI_STATE_INFO_SIZE + MI_STATE_EXTRA_SIZE];
693
696
  unsigned char *ptr=buff;
745
748
  if (pWrite & 1)
746
749
    return(my_pwrite(file, buff, (size_t) (ptr-buff), 0L,
747
750
                          MYF(MY_NABP | MY_THREADSAFE)) != 0);
748
 
  return(internal::my_write(file, buff, (size_t) (ptr-buff),
 
751
  return(my_write(file, buff, (size_t) (ptr-buff),
749
752
                       MYF(MY_NABP)) != 0);
750
753
}
751
754
 
752
755
 
753
 
static unsigned char *mi_state_info_read(unsigned char *ptr, MI_STATE_INFO *state)
 
756
unsigned char *mi_state_info_read(unsigned char *ptr, MI_STATE_INFO *state)
754
757
{
755
758
  uint32_t i,keys,key_parts,key_blocks;
756
759
  memcpy(&state->header,ptr, sizeof(state->header));
771
774
  state->state.empty    = mi_sizekorr(ptr);     ptr +=8;
772
775
  state->state.key_empty= mi_sizekorr(ptr);     ptr +=8;
773
776
  state->auto_increment=mi_uint8korr(ptr);      ptr +=8;
774
 
  state->state.checksum=(internal::ha_checksum) mi_uint8korr(ptr);      ptr +=8;
 
777
  state->state.checksum=(ha_checksum) mi_uint8korr(ptr);        ptr +=8;
775
778
  state->process= mi_uint4korr(ptr);            ptr +=4;
776
779
  state->unique = mi_uint4korr(ptr);            ptr +=4;
777
780
  state->status = mi_uint4korr(ptr);            ptr +=4;
803
806
}
804
807
 
805
808
 
806
 
uint32_t mi_state_info_read_dsk(int file, MI_STATE_INFO *state, bool pRead)
 
809
uint32_t mi_state_info_read_dsk(File file, MI_STATE_INFO *state, bool pRead)
807
810
{
808
811
  unsigned char buff[MI_STATE_INFO_SIZE + MI_STATE_EXTRA_SIZE];
809
812
 
812
815
    if (my_pread(file, buff, state->state_length,0L, MYF(MY_NABP)))
813
816
      return 1;
814
817
  }
815
 
  else if (internal::my_read(file, buff, state->state_length,MYF(MY_NABP)))
 
818
  else if (my_read(file, buff, state->state_length,MYF(MY_NABP)))
816
819
    return 1;
817
820
  mi_state_info_read(buff, state);
818
821
 
824
827
**  store and read of MI_BASE_INFO
825
828
****************************************************************************/
826
829
 
827
 
uint32_t mi_base_info_write(int file, MI_BASE_INFO *base)
 
830
uint32_t mi_base_info_write(File file, MI_BASE_INFO *base)
828
831
{
829
832
  unsigned char buff[MI_BASE_INFO_SIZE], *ptr=buff;
830
833
 
857
860
  mi_int4store(ptr,UINT32_C(0));                        ptr +=4;
858
861
 
859
862
  memset(ptr, 0, 6);                                    ptr +=6; /* extra */
860
 
  return internal::my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
 
863
  return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
861
864
}
862
865
 
863
866
 
864
 
static unsigned char *my_n_base_info_read(unsigned char *ptr, MI_BASE_INFO *base)
 
867
unsigned char *my_n_base_info_read(unsigned char *ptr, MI_BASE_INFO *base)
865
868
{
866
869
  base->keystart = mi_sizekorr(ptr);                    ptr +=8;
867
870
  base->max_data_file_length = mi_sizekorr(ptr);        ptr +=8;
899
902
  mi_keydef
900
903
---------------------------------------------------------------------------*/
901
904
 
902
 
uint32_t mi_keydef_write(int file, MI_KEYDEF *keydef)
 
905
uint32_t mi_keydef_write(File file, MI_KEYDEF *keydef)
903
906
{
904
907
  unsigned char buff[MI_KEYDEF_SIZE];
905
908
  unsigned char *ptr=buff;
911
914
  mi_int2store(ptr,keydef->keylength);          ptr +=2;
912
915
  mi_int2store(ptr,keydef->minlength);          ptr +=2;
913
916
  mi_int2store(ptr,keydef->maxlength);          ptr +=2;
914
 
  return internal::my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
 
917
  return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
915
918
}
916
919
 
917
 
static unsigned char *mi_keydef_read(unsigned char *ptr, MI_KEYDEF *keydef)
 
920
unsigned char *mi_keydef_read(unsigned char *ptr, MI_KEYDEF *keydef)
918
921
{
919
922
   keydef->keysegs      = (uint) *ptr++;
920
923
   keydef->key_alg      = *ptr++;               /* Rtree or Btree */
934
937
**  mi_keyseg
935
938
***************************************************************************/
936
939
 
937
 
int mi_keyseg_write(int file, const HA_KEYSEG *keyseg)
 
940
int mi_keyseg_write(File file, const HA_KEYSEG *keyseg)
938
941
{
939
942
  unsigned char buff[HA_KEYSEG_SIZE];
940
943
  unsigned char *ptr=buff;
953
956
  mi_int4store(ptr, pos);
954
957
  ptr+=4;
955
958
 
956
 
  return internal::my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
 
959
  return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
957
960
}
958
961
 
959
962
 
960
 
static unsigned char *mi_keyseg_read(unsigned char *ptr, HA_KEYSEG *keyseg)
 
963
unsigned char *mi_keyseg_read(unsigned char *ptr, HA_KEYSEG *keyseg)
961
964
{
962
965
   keyseg->type         = *ptr++;
963
966
   keyseg->language     = *ptr++;
984
987
  mi_uniquedef
985
988
---------------------------------------------------------------------------*/
986
989
 
987
 
uint32_t mi_uniquedef_write(int file, MI_UNIQUEDEF *def)
 
990
uint32_t mi_uniquedef_write(File file, MI_UNIQUEDEF *def)
988
991
{
989
992
  unsigned char buff[MI_UNIQUEDEF_SIZE];
990
993
  unsigned char *ptr=buff;
993
996
  *ptr++=  (unsigned char) def->key;
994
997
  *ptr++ = (unsigned char) def->null_are_equal;
995
998
 
996
 
  return internal::my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
 
999
  return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
997
1000
}
998
1001
 
999
 
static unsigned char *mi_uniquedef_read(unsigned char *ptr, MI_UNIQUEDEF *def)
 
1002
unsigned char *mi_uniquedef_read(unsigned char *ptr, MI_UNIQUEDEF *def)
1000
1003
{
1001
1004
   def->keysegs = mi_uint2korr(ptr);
1002
1005
   def->key     = ptr[2];
1008
1011
**  MI_COLUMNDEF
1009
1012
***************************************************************************/
1010
1013
 
1011
 
uint32_t mi_recinfo_write(int file, MI_COLUMNDEF *recinfo)
 
1014
uint32_t mi_recinfo_write(File file, MI_COLUMNDEF *recinfo)
1012
1015
{
1013
1016
  unsigned char buff[MI_COLUMNDEF_SIZE];
1014
1017
  unsigned char *ptr=buff;
1017
1020
  mi_int2store(ptr,recinfo->length);    ptr +=2;
1018
1021
  *ptr++ = recinfo->null_bit;
1019
1022
  mi_int2store(ptr,recinfo->null_pos);  ptr+= 2;
1020
 
  return internal::my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
 
1023
  return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
1021
1024
}
1022
1025
 
1023
 
static unsigned char *mi_recinfo_read(unsigned char *ptr, MI_COLUMNDEF *recinfo)
 
1026
unsigned char *mi_recinfo_read(unsigned char *ptr, MI_COLUMNDEF *recinfo)
1024
1027
{
1025
1028
   recinfo->type=  mi_sint2korr(ptr);   ptr +=2;
1026
1029
   recinfo->length=mi_uint2korr(ptr);   ptr +=2;
1038
1041
exist a dup()-like call that would give us two different file descriptors.
1039
1042
*************************************************************************/
1040
1043
 
1041
 
int mi_open_datafile(MI_INFO *info, MYISAM_SHARE *share, int file_to_dup)
 
1044
int mi_open_datafile(MI_INFO *info, MYISAM_SHARE *share, File file_to_dup)
1042
1045
{
1043
1046
  (void)file_to_dup; 
1044
 
  info->dfile=internal::my_open(share->data_file_name, share->mode,
 
1047
  info->dfile=my_open(share->data_file_name, share->mode,
1045
1048
                      MYF(MY_WME));
1046
1049
  return info->dfile >= 0 ? 0 : 1;
1047
1050
}
1049
1052
 
1050
1053
int mi_open_keyfile(MYISAM_SHARE *share)
1051
1054
{
1052
 
  if ((share->kfile=internal::my_open(share->unique_file_name, share->mode,
 
1055
  if ((share->kfile=my_open(share->unique_file_name, share->mode,
1053
1056
                            MYF(MY_WME))) < 0)
1054
1057
    return 1;
1055
1058
  return 0;