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5fbd5dafe7f78735922ce5aa15d65ffab811deb8
mariadb/storage/maria/ma_open.c
unknown 5fbd5dafe7 * WL#4137 Maria- Framework for testing recovery in mysql-test-run 
See test maria-recovery.test for a model; all include scripts have
an "API" section at start if they do take parameters from outside.
* Fixing bug reported by Jani and Monty (when two REDOs about the same
page in one group, see ma_blockrec.c). 
* Fixing small bugs in recovery


mysql-test/include/wait_until_connected_again.inc:
  be sure to enter the loop (the previous query by the caller may not have
  failed: it could be
  query;
  mysqladmin shutdown;
  call this script).
mysql-test/lib/mtr_process.pl:
  * Through the "expect" file a test can tell mtr that a server crash
  is expected. What the file contains is irrelevant. Now if its last
  line starts with "wait", mtr will wait before restarting (it will
  wait for the last line to not start with "wait"). This is for
  tests which need to mangle files under the feet of a dead mysqld.
  * Remove "expect" file before restarting; otherwise there could be a
  race condition: tests sees server restarted, does something, writes
  an "expect" file, and then mtr removes that file, then
  test kills mysqld, and then mtr will never restart it.
storage/maria/ma_blockrec.c:
  - when applying a REDO in recovery, we don't anymore put UNDO's LSN on the page
  at once; indeed if in this REDO's group there comes another REDO
  for the same page it would be wrongly skipped. Instead, we keep
  pages pinned, don't change their LSN. When done with all REDOs
  of the group we unpin them and stamp them with UNDO's LSN.
  - fixing bug in applying of REDO_PURGE_BLOCKS in recovery: page_range
  sometimes has TAIL_BIT set, need to turn it down to know the real page
  range.
  - Both bugs are covered in maria-recovery.test
storage/maria/ma_checkpoint.c:
  Capability to, in debug builds only, do some special operations
  (flush all bitmap and data pages, flush state, flush log)
  and crash mysqld, to later test recovery.
   Driven by some --debug=d, symbols.
storage/maria/ma_open.c:
  debugging info
storage/maria/ma_pagecache.c:
  Now that we can _ma_unpin_all_pages() during the REDO phase
  to set page's LSN, the assertion needs to be relaxed.
storage/maria/ma_recovery.c:
  - open trace file in append mode (useful when a test triggers several
  recoveries, we see them all).
  - fixing wrong error detection, it's possible that during recovery
  we want to open an already open table.
  - when applying a REDO in recovery, we don't anymore put UNDO's LSN on the page
  at once; indeed if in this REDO's group there comes another REDO
  for the same page it would be wrongly skipped. Instead, we keep
  pages pinned, don't change their LSN. When done with all REDOs
  of the group we unpin them and stamp them with UNDO's LSN.
  - we verify that all log records of a group are about the same table,
  for debugging.
mysql-test/r/maria-recovery.result:
  result
mysql-test/t/maria-recovery-master.opt:
  crash is expected, core file would take room, stack trace would
  wake pushbuild up.
mysql-test/t/maria-recovery.test:
  Test of recovery from mysql-test (it is already tested as unit tests
  in ma_test_recovery) (WL#4137)
  - test that, if recovery is made to start on an empty table it can
  replay the effects of committed and uncommitted statements (having only
  the committed ones in the end result). This should be the first test
  for someone writing code of new REDOs.
  - test that, if mysqld is crashed and recovery runs we have only
  committed statements in the end result. Crashes are done in different
  ways: flush nothing (so, uncommitted statement is often missing
  from the log => no rollback to do); flush pagecache (implicitely flushes
  log (WAL)) and flush log, both causes rollbacks; flush log can also
  flush state (state.records etc) to test recovery of the state
  (not tested well now as we repair the index anyway).
  - test of bug found by Jani and Monty in recovery (two REDO about
  the same page in one group).
mysql-test/include/maria_empty_logs.inc:
  removes logs, to have a clean sheet for testing recovery.
mysql-test/include/maria_make_snapshot.inc:
  copies a table to another directory, or back, or compares both
  (comparison is not implemented as physical comparison is impossible
  if an UNDO phase happened).
mysql-test/include/maria_make_snapshot_for_comparison.inc:
  copies tables to another directory so that they can later
  serve as a comparison reference (they are the good tables,
  recovery should produce similar ones).
mysql-test/include/maria_make_snapshot_for_feeding_recovery.inc:
  When we want to force recovery to start on old tables, we prepare
  old tables with this script: we put them in a spare directory.
  They are later copied back over mysqltest tables while mysqld is dead.
  We also need to copy back the control file, otherwise mysqld,
  in recovery, would start from the latest checkpoint: latest
  checkpoint plus old tables is not a recovery-possible scenario of course.
mysql-test/include/maria_verify_recovery.inc:
  causes mysqld to crash, restores old tables if requested,
  lets recovery run, compares resulting tables with reference tables
  by using CHECKSUM TABLE.
  We don't do any sanity checks on page's LSN in resulting tables, yet.
2007-11-13 17:12:29 +01:00

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/* Copyright (C) 2006 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; version 2 of the License.
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 */
/* open a isam-database */
#include "ma_fulltext.h"
#include "ma_sp_defs.h"
#include "ma_rt_index.h"
#include "ma_blockrec.h"
#include "trnman.h"
#include <m_ctype.h>
#if defined(MSDOS) || defined(__WIN__)
#ifdef __WIN__
#include <fcntl.h>
#else
#include <process.h> /* Prototype for getpid */
#endif
#endif
#ifdef VMS
#include "static.c"
#endif
static void setup_key_functions(MARIA_KEYDEF *keyinfo);
static my_bool maria_scan_init_dummy(MARIA_HA *info);
static void maria_scan_end_dummy(MARIA_HA *info);
static my_bool maria_once_init_dummy(MARIA_SHARE *, File);
static my_bool maria_once_end_dummy(MARIA_SHARE *);
static uchar *_ma_base_info_read(uchar *ptr, MARIA_BASE_INFO *base);
static uchar *_ma_state_info_read(uchar *ptr, MARIA_STATE_INFO *state);
#define get_next_element(to,pos,size) { memcpy((char*) to,pos,(size_t) size); \
pos+=size;}
#define disk_pos_assert(pos, end_pos) \
if (pos > end_pos) \
{ \
my_errno=HA_ERR_CRASHED; \
goto err; \
}
/******************************************************************************
** Return the shared struct if the table is already open.
** In MySQL the server will handle version issues.
******************************************************************************/
MARIA_HA *_ma_test_if_reopen(const char *filename)
{
LIST *pos;
for (pos=maria_open_list ; pos ; pos=pos->next)
{
MARIA_HA *info=(MARIA_HA*) pos->data;
MARIA_SHARE *share=info->s;
if (!strcmp(share->unique_file_name,filename) && share->last_version)
return info;
}
return 0;
}
/*
Open a new instance of an already opened Maria table
SYNOPSIS
maria_clone_internal()
share Share of already open table
mode Mode of table (O_RDONLY | O_RDWR)
data_file Filedescriptor of data file to use < 0 if one should open
open it.
RETURN
# Maria handler
0 Error
*/
static MARIA_HA *maria_clone_internal(MARIA_SHARE *share, int mode,
File data_file)
{
int save_errno;
uint errpos;
MARIA_HA info,*m_info;
my_bitmap_map *changed_fields_bitmap;
DBUG_ENTER("maria_clone_internal");
errpos= 0;
bzero((uchar*) &info,sizeof(info));
if (mode == O_RDWR && share->mode == O_RDONLY)
{
my_errno=EACCES; /* Can't open in write mode */
goto err;
}
if (data_file >= 0)
info.dfile.file= data_file;
else if (_ma_open_datafile(&info, share, -1))
goto err;
errpos= 5;
/* alloc and set up private structure parts */
if (!my_multi_malloc(MY_WME,
&m_info,sizeof(MARIA_HA),
&info.blobs,sizeof(MARIA_BLOB)*share->base.blobs,
&info.buff,(share->base.max_key_block_length*2+
share->base.max_key_length),
&info.lastkey,share->base.max_key_length*3+1,
&info.first_mbr_key, share->base.max_key_length,
&info.maria_rtree_recursion_state,
share->have_rtree ? 1024 : 0,
&changed_fields_bitmap,
bitmap_buffer_size(share->base.fields),
NullS))
goto err;
errpos= 6;
memcpy(info.blobs,share->blobs,sizeof(MARIA_BLOB)*share->base.blobs);
info.lastkey2=info.lastkey+share->base.max_key_length;
info.s=share;
info.cur_row.lastpos= HA_OFFSET_ERROR;
info.update= (short) (HA_STATE_NEXT_FOUND+HA_STATE_PREV_FOUND);
info.opt_flag=READ_CHECK_USED;
info.this_unique= (ulong) info.dfile.file; /* Uniq number in process */
if (share->data_file_type == COMPRESSED_RECORD)
info.this_unique= share->state.unique;
info.this_loop=0; /* Update counter */
info.last_unique= share->state.unique;
info.last_loop= share->state.update_count;
info.lock_type=F_UNLCK;
info.quick_mode=0;
info.bulk_insert=0;
info.ft1_to_ft2=0;
info.errkey= -1;
info.page_changed=1;
info.keyread_buff= info.buff + share->base.max_key_block_length;
bitmap_init(&info.changed_fields, changed_fields_bitmap,
share->base.fields, 0);
if ((*share->init)(&info))
goto err;
pthread_mutex_lock(&share->intern_lock);
info.read_record= share->read_record;
share->reopen++;
share->write_flag=MYF(MY_NABP | MY_WAIT_IF_FULL);
if (share->options & HA_OPTION_READ_ONLY_DATA)
{
info.lock_type=F_RDLCK;
share->r_locks++;
share->tot_locks++;
}
if (share->options & HA_OPTION_TMP_TABLE)
{
share->temporary= share->delay_key_write= 1;
share->write_flag=MYF(MY_NABP);
share->w_locks++; /* We don't have to update status */
share->tot_locks++;
info.lock_type=F_WRLCK;
}
if ((share->options & HA_OPTION_DELAY_KEY_WRITE) &&
maria_delay_key_write)
share->delay_key_write=1;
info.state= &share->state.state; /* Change global values by default */
if (!share->base.born_transactional) /* For transactional ones ... */
info.trn= &dummy_transaction_object; /* ... force crash if no trn given */
pthread_mutex_unlock(&share->intern_lock);
/* Allocate buffer for one record */
/* prerequisites: info->rec_buffer == 0 && info->rec_buff_size == 0 */
if (_ma_alloc_buffer(&info.rec_buff, &info.rec_buff_size,
share->base.default_rec_buff_size))
goto err;
bzero(info.rec_buff, share->base.default_rec_buff_size);
*m_info=info;
#ifdef THREAD
thr_lock_data_init(&share->lock,&m_info->lock,(void*) m_info);
#endif
m_info->open_list.data=(void*) m_info;
maria_open_list=list_add(maria_open_list,&m_info->open_list);
DBUG_RETURN(m_info);
err:
save_errno=my_errno ? my_errno : HA_ERR_END_OF_FILE;
if ((save_errno == HA_ERR_CRASHED) ||
(save_errno == HA_ERR_CRASHED_ON_USAGE) ||
(save_errno == HA_ERR_CRASHED_ON_REPAIR))
_ma_report_error(save_errno, share->open_file_name);
switch (errpos) {
case 6:
(*share->end)(&info);
my_free((uchar*) m_info,MYF(0));
/* fall through */
case 5:
if (data_file < 0)
VOID(my_close(info.dfile.file, MYF(0)));
break;
}
my_errno=save_errno;
DBUG_RETURN (NULL);
} /* maria_clone_internal */
/* Make a clone of a maria table */
MARIA_HA *maria_clone(MARIA_SHARE *share, int mode)
{
MARIA_HA *new_info;
pthread_mutex_lock(&THR_LOCK_maria);
new_info= maria_clone_internal(share, mode,
share->data_file_type == BLOCK_RECORD ?
share->bitmap.file.file : -1);
pthread_mutex_unlock(&THR_LOCK_maria);
return new_info;
}
/******************************************************************************
open a MARIA table
See my_base.h for the handle_locking argument
if handle_locking and HA_OPEN_ABORT_IF_CRASHED then abort if the table
is marked crashed or if we are not using locking and the table doesn't
have an open count of 0.
******************************************************************************/
MARIA_HA *maria_open(const char *name, int mode, uint open_flags)
{
int kfile,open_mode,save_errno;
uint i,j,len,errpos,head_length,base_pos,info_length,keys,
key_parts,unique_key_parts,fulltext_keys,uniques;
char name_buff[FN_REFLEN], org_name[FN_REFLEN], index_name[FN_REFLEN],
data_name[FN_REFLEN];
uchar *disk_cache, *disk_pos, *end_pos;
MARIA_HA info,*m_info,*old_info;
MARIA_SHARE share_buff,*share;
ulong rec_per_key_part[HA_MAX_POSSIBLE_KEY*HA_MAX_KEY_SEG];
my_off_t key_root[HA_MAX_POSSIBLE_KEY];
ulonglong max_key_file_length, max_data_file_length;
File data_file= -1;
DBUG_ENTER("maria_open");
LINT_INIT(m_info);
kfile= -1;
errpos= 0;
head_length=sizeof(share_buff.state.header);
bzero((uchar*) &info,sizeof(info));
my_realpath(name_buff, fn_format(org_name,name,"",MARIA_NAME_IEXT,
MY_UNPACK_FILENAME),MYF(0));
pthread_mutex_lock(&THR_LOCK_maria);
old_info= 0;
if ((open_flags & HA_OPEN_COPY) ||
!(old_info=_ma_test_if_reopen(name_buff)))
{
share= &share_buff;
bzero((uchar*) &share_buff,sizeof(share_buff));
share_buff.state.rec_per_key_part=rec_per_key_part;
share_buff.state.key_root=key_root;
share_buff.pagecache= multi_pagecache_search((uchar*) name_buff,
strlen(name_buff),
maria_pagecache);
DBUG_EXECUTE_IF("maria_pretend_crashed_table_on_open",
if (strstr(name, "/t1"))
{
my_errno= HA_ERR_CRASHED;
goto err;
});
if ((kfile=my_open(name_buff,(open_mode=O_RDWR) | O_SHARE,MYF(0))) < 0)
{
if ((errno != EROFS && errno != EACCES) ||
mode != O_RDONLY ||
(kfile=my_open(name_buff,(open_mode=O_RDONLY) | O_SHARE,MYF(0))) < 0)
goto err;
}
share->mode=open_mode;
errpos= 1;
if (my_read(kfile,share->state.header.file_version, head_length,
MYF(MY_NABP)))
{
my_errno= HA_ERR_NOT_A_TABLE;
goto err;
}
if (memcmp((uchar*) share->state.header.file_version,
(uchar*) maria_file_magic, 4))
{
DBUG_PRINT("error",("Wrong header in %s",name_buff));
DBUG_DUMP("error_dump",(char*) share->state.header.file_version,
head_length);
my_errno=HA_ERR_NOT_A_TABLE;
goto err;
}
share->options= mi_uint2korr(share->state.header.options);
if (share->options &
~(HA_OPTION_PACK_RECORD | HA_OPTION_PACK_KEYS |
HA_OPTION_COMPRESS_RECORD | HA_OPTION_READ_ONLY_DATA |
HA_OPTION_TEMP_COMPRESS_RECORD | HA_OPTION_CHECKSUM |
HA_OPTION_TMP_TABLE | HA_OPTION_DELAY_KEY_WRITE |
HA_OPTION_RELIES_ON_SQL_LAYER | HA_OPTION_NULL_FIELDS))
{
DBUG_PRINT("error",("wrong options: 0x%lx", share->options));
my_errno=HA_ERR_OLD_FILE;
goto err;
}
if ((share->options & HA_OPTION_RELIES_ON_SQL_LAYER) &&
! (open_flags & HA_OPEN_FROM_SQL_LAYER))
{
DBUG_PRINT("error", ("table cannot be openned from non-sql layer"));
my_errno= HA_ERR_UNSUPPORTED;
goto err;
}
/* Don't call realpath() if the name can't be a link */
if (!strcmp(name_buff, org_name) ||
my_readlink(index_name, org_name, MYF(0)) == -1)
(void) strmov(index_name, org_name);
*strrchr(org_name, '.')= '\0';
(void) fn_format(data_name,org_name,"",MARIA_NAME_DEXT,
MY_APPEND_EXT|MY_UNPACK_FILENAME|MY_RESOLVE_SYMLINKS);
info_length=mi_uint2korr(share->state.header.header_length);
base_pos= mi_uint2korr(share->state.header.base_pos);
if (!(disk_cache= (uchar*) my_alloca(info_length+128)))
{
my_errno=ENOMEM;
goto err;
}
end_pos=disk_cache+info_length;
errpos= 2;
VOID(my_seek(kfile,0L,MY_SEEK_SET,MYF(0)));
errpos= 3;
if (my_read(kfile,disk_cache,info_length,MYF(MY_NABP)))
{
my_errno=HA_ERR_CRASHED;
goto err;
}
len=mi_uint2korr(share->state.header.state_info_length);
keys= (uint) share->state.header.keys;
uniques= (uint) share->state.header.uniques;
fulltext_keys= (uint) share->state.header.fulltext_keys;
key_parts= mi_uint2korr(share->state.header.key_parts);
unique_key_parts= mi_uint2korr(share->state.header.unique_key_parts);
if (len != MARIA_STATE_INFO_SIZE)
{
DBUG_PRINT("warning",
("saved_state_info_length: %d state_info_length: %d",
len,MARIA_STATE_INFO_SIZE));
}
share->state_diff_length=len-MARIA_STATE_INFO_SIZE;
_ma_state_info_read(disk_cache, &share->state);
len= mi_uint2korr(share->state.header.base_info_length);
if (len != MARIA_BASE_INFO_SIZE)
{
DBUG_PRINT("warning",("saved_base_info_length: %d base_info_length: %d",
len,MARIA_BASE_INFO_SIZE));
}
disk_pos= _ma_base_info_read(disk_cache + base_pos, &share->base);
share->state.state_length=base_pos;
if (!(open_flags & HA_OPEN_FOR_REPAIR) &&
((share->state.changed & STATE_CRASHED) ||
((open_flags & HA_OPEN_ABORT_IF_CRASHED) &&
(my_disable_locking && share->state.open_count))))
{
DBUG_PRINT("error",("Table is marked as crashed. open_flags: %u "
"changed: %u open_count: %u !locking: %d",
open_flags, share->state.changed,
share->state.open_count, my_disable_locking));
my_errno=((share->state.changed & STATE_CRASHED_ON_REPAIR) ?
HA_ERR_CRASHED_ON_REPAIR : HA_ERR_CRASHED_ON_USAGE);
goto err;
}
/* sanity check */
if (share->base.keystart > 65535 || share->base.rec_reflength > 8)
{
my_errno=HA_ERR_CRASHED;
goto err;
}
key_parts+=fulltext_keys*FT_SEGS;
if (share->base.max_key_length > maria_max_key_length() ||
keys > MARIA_MAX_KEY || key_parts > MARIA_MAX_KEY * HA_MAX_KEY_SEG)
{
DBUG_PRINT("error",("Wrong key info: Max_key_length: %d keys: %d key_parts: %d", share->base.max_key_length, keys, key_parts));
my_errno=HA_ERR_UNSUPPORTED;
goto err;
}
/*
If page cache is not initialized, then assume we will create it
after the table is opened!
*/
if (share->base.block_size != maria_block_size &&
share_buff.pagecache->inited != 0)
{
DBUG_PRINT("error", ("Wrong block size %u; Expected %u",
(uint) share->base.block_size,
(uint) maria_block_size));
my_errno=HA_ERR_UNSUPPORTED;
goto err;
}
/* Correct max_file_length based on length of sizeof(off_t) */
max_data_file_length=
(share->options & (HA_OPTION_PACK_RECORD | HA_OPTION_COMPRESS_RECORD)) ?
(((ulonglong) 1 << (share->base.rec_reflength*8))-1) :
(_ma_safe_mul(share->base.pack_reclength,
(ulonglong) 1 << (share->base.rec_reflength*8))-1);
max_key_file_length=
_ma_safe_mul(MARIA_MIN_KEY_BLOCK_LENGTH,
((ulonglong) 1 << (share->base.key_reflength*8))-1);
#if SIZEOF_OFF_T == 4
set_if_smaller(max_data_file_length, INT_MAX32);
set_if_smaller(max_key_file_length, INT_MAX32);
#endif
share->base.max_data_file_length=(my_off_t) max_data_file_length;
share->base.max_key_file_length=(my_off_t) max_key_file_length;
if (share->options & HA_OPTION_COMPRESS_RECORD)
share->base.max_key_length+=2; /* For safety */
if (!my_multi_malloc(MY_WME,
&share,sizeof(*share),
&share->state.rec_per_key_part,sizeof(long)*key_parts,
&share->keyinfo,keys*sizeof(MARIA_KEYDEF),
&share->uniqueinfo,uniques*sizeof(MARIA_UNIQUEDEF),
&share->keyparts,
(key_parts+unique_key_parts+keys+uniques) *
sizeof(HA_KEYSEG),
&share->columndef,
(share->base.fields+1)*sizeof(MARIA_COLUMNDEF),
&share->blobs,sizeof(MARIA_BLOB)*share->base.blobs,
&share->unique_file_name,strlen(name_buff)+1,
&share->index_file_name,strlen(index_name)+1,
&share->data_file_name,strlen(data_name)+1,
&share->open_file_name,strlen(name)+1,
&share->state.key_root,keys*sizeof(my_off_t),
#ifdef THREAD
&share->key_root_lock,sizeof(rw_lock_t)*keys,
#endif
&share->mmap_lock,sizeof(rw_lock_t),
NullS))
goto err;
errpos= 4;
*share=share_buff;
memcpy((char*) share->state.rec_per_key_part,
(char*) rec_per_key_part, sizeof(long)*key_parts);
memcpy((char*) share->state.key_root,
(char*) key_root, sizeof(my_off_t)*keys);
strmov(share->unique_file_name, name_buff);
share->unique_name_length= strlen(name_buff);
strmov(share->index_file_name, index_name);
strmov(share->data_file_name, data_name);
strmov(share->open_file_name, name);
share->block_size= share->base.block_size;
{
HA_KEYSEG *pos=share->keyparts;
for (i=0 ; i < keys ; i++)
{
share->keyinfo[i].share= share;
disk_pos=_ma_keydef_read(disk_pos, &share->keyinfo[i]);
disk_pos_assert(disk_pos + share->keyinfo[i].keysegs * HA_KEYSEG_SIZE,
end_pos);
if (share->keyinfo[i].key_alg == HA_KEY_ALG_RTREE)
share->have_rtree= 1;
share->keyinfo[i].seg=pos;
for (j=0 ; j < share->keyinfo[i].keysegs; j++,pos++)
{
disk_pos=_ma_keyseg_read(disk_pos, pos);
if (pos->type == HA_KEYTYPE_TEXT ||
pos->type == HA_KEYTYPE_VARTEXT1 ||
pos->type == HA_KEYTYPE_VARTEXT2)
{
if (!pos->language)
pos->charset=default_charset_info;
else if (!(pos->charset= get_charset(pos->language, MYF(MY_WME))))
{
my_errno=HA_ERR_UNKNOWN_CHARSET;
goto err;
}
}
else if (pos->type == HA_KEYTYPE_BINARY)
pos->charset= &my_charset_bin;
}
if (share->keyinfo[i].flag & HA_SPATIAL)
{
#ifdef HAVE_SPATIAL
uint sp_segs=SPDIMS*2;
share->keyinfo[i].seg=pos-sp_segs;
share->keyinfo[i].keysegs--;
#else
my_errno=HA_ERR_UNSUPPORTED;
goto err;
#endif
}
else if (share->keyinfo[i].flag & HA_FULLTEXT)
{
if (!fulltext_keys)
{ /* 4.0 compatibility code, to be removed in 5.0 */
share->keyinfo[i].seg=pos-FT_SEGS;
share->keyinfo[i].keysegs-=FT_SEGS;
}
else
{
uint k;
share->keyinfo[i].seg=pos;
for (k=0; k < FT_SEGS; k++)
{
*pos= ft_keysegs[k];
pos[0].language= pos[-1].language;
if (!(pos[0].charset= pos[-1].charset))
{
my_errno=HA_ERR_CRASHED;
goto err;
}
pos++;
}
}
if (!share->ft2_keyinfo.seg)
{
memcpy(& share->ft2_keyinfo, & share->keyinfo[i], sizeof(MARIA_KEYDEF));
share->ft2_keyinfo.keysegs=1;
share->ft2_keyinfo.flag=0;
share->ft2_keyinfo.keylength=
share->ft2_keyinfo.minlength=
share->ft2_keyinfo.maxlength=HA_FT_WLEN+share->base.rec_reflength;
share->ft2_keyinfo.seg=pos-1;
share->ft2_keyinfo.end=pos;
setup_key_functions(& share->ft2_keyinfo);
}
}
setup_key_functions(share->keyinfo+i);
share->keyinfo[i].end=pos;
pos->type=HA_KEYTYPE_END; /* End */
pos->length=share->base.rec_reflength;
pos->null_bit=0;
pos->flag=0; /* For purify */
pos++;
}
for (i=0 ; i < uniques ; i++)
{
disk_pos=_ma_uniquedef_read(disk_pos, &share->uniqueinfo[i]);
disk_pos_assert(disk_pos + share->uniqueinfo[i].keysegs *
HA_KEYSEG_SIZE, end_pos);
share->uniqueinfo[i].seg=pos;
for (j=0 ; j < share->uniqueinfo[i].keysegs; j++,pos++)
{
disk_pos=_ma_keyseg_read(disk_pos, pos);
if (pos->type == HA_KEYTYPE_TEXT ||
pos->type == HA_KEYTYPE_VARTEXT1 ||
pos->type == HA_KEYTYPE_VARTEXT2)
{
if (!pos->language)
pos->charset=default_charset_info;
else if (!(pos->charset= get_charset(pos->language, MYF(MY_WME))))
{
my_errno=HA_ERR_UNKNOWN_CHARSET;
goto err;
}
}
}
share->uniqueinfo[i].end=pos;
pos->type=HA_KEYTYPE_END; /* End */
pos->null_bit=0;
pos->flag=0;
pos++;
}
share->ftparsers= 0;
}
share->data_file_type= share->state.header.data_file_type;
share->base_length= (BASE_ROW_HEADER_SIZE +
share->base.is_nulls_extended +
share->base.null_bytes +
share->base.pack_bytes +
test(share->options & HA_OPTION_CHECKSUM));
if (open_flags & HA_OPEN_COPY)
{
/*
this instance will be a temporary one used just to create a data
file for REPAIR. Don't do logging. This base information will not go
to disk.
*/
share->base.born_transactional= FALSE;
}
if (share->base.born_transactional)
{
share->page_type= PAGECACHE_LSN_PAGE;
#ifdef ENABLE_WHEN_WE_HAVE_TRANS_ROW_ID /* QQ */
share->base_length+= TRANS_ROW_EXTRA_HEADER_SIZE;
#endif
if (share->state.create_rename_lsn == LSN_REPAIRED_BY_MARIA_CHK)
{
/*
Was repaired with maria_chk, maybe later maria_pack-ed. Some sort of
import into the server. It starts its existence (from the point of
view of the server, including server's recovery) now.
*/
if ((open_flags & HA_OPEN_FROM_SQL_LAYER) || maria_in_recovery)
_ma_update_create_rename_lsn_sub(share, translog_get_horizon(),
TRUE);
}
else if ((!LSN_VALID(share->state.create_rename_lsn) ||
!LSN_VALID(share->state.is_of_horizon) ||
(cmp_translog_addr(share->state.create_rename_lsn,
share->state.is_of_horizon) > 0)) &&
!(open_flags & HA_OPEN_FOR_REPAIR))
{
/*
If in Recovery, it will not work. If LSN is invalid and not
LSN_REPAIRED_BY_MARIA_CHK, header must be corrupted.
In both cases, must repair.
*/
my_errno=((share->state.changed & STATE_CRASHED_ON_REPAIR) ?
HA_ERR_CRASHED_ON_REPAIR : HA_ERR_CRASHED_ON_USAGE);
goto err;
}
}
else
share->page_type= PAGECACHE_PLAIN_PAGE;
share->now_transactional= share->base.born_transactional;
share->base.default_rec_buff_size= max(share->base.pack_reclength,
share->base.max_key_length);
if (share->data_file_type == DYNAMIC_RECORD)
{
share->base.extra_rec_buff_size=
(ALIGN_SIZE(MARIA_MAX_DYN_BLOCK_HEADER) + MARIA_SPLIT_LENGTH +
MARIA_REC_BUFF_OFFSET);
share->base.default_rec_buff_size+= share->base.extra_rec_buff_size;
}
disk_pos_assert(disk_pos + share->base.fields *MARIA_COLUMNDEF_SIZE,
end_pos);
for (i= j= 0 ; i < share->base.fields ; i++)
{
disk_pos=_ma_columndef_read(disk_pos,&share->columndef[i]);
share->columndef[i].pack_type=0;
share->columndef[i].huff_tree=0;
if (share->columndef[i].type == (int) FIELD_BLOB)
{
share->blobs[j].pack_length=
share->columndef[i].length-portable_sizeof_char_ptr;;
share->blobs[j].offset= share->columndef[i].offset;
j++;
}
}
share->columndef[i].type=(int) FIELD_LAST; /* End marker */
if ((share->data_file_type == BLOCK_RECORD ||
share->data_file_type == COMPRESSED_RECORD))
{
if (_ma_open_datafile(&info, share, -1))
goto err;
data_file= info.dfile.file;
}
errpos= 5;
share->kfile.file= kfile;
share->this_process=(ulong) getpid();
share->last_process= share->state.process;
share->base.key_parts=key_parts;
share->base.all_key_parts=key_parts+unique_key_parts;
if (!(share->last_version=share->state.version))
share->last_version=1; /* Safety */
share->rec_reflength=share->base.rec_reflength; /* May be changed */
share->base.margin_key_file_length=(share->base.max_key_file_length -
(keys ? MARIA_INDEX_BLOCK_MARGIN *
share->block_size * keys : 0));
share->block_size= share->base.block_size;
my_afree(disk_cache);
_ma_setup_functions(share);
if ((*share->once_init)(share, info.dfile.file))
goto err;
share->is_log_table= FALSE;
if (open_flags & HA_OPEN_TMP_TABLE)
share->options|= HA_OPTION_TMP_TABLE;
if (open_flags & HA_OPEN_DELAY_KEY_WRITE)
share->options|= HA_OPTION_DELAY_KEY_WRITE;
if (mode == O_RDONLY)
share->options|= HA_OPTION_READ_ONLY_DATA;
#ifdef THREAD
thr_lock_init(&share->lock);
VOID(pthread_mutex_init(&share->intern_lock,MY_MUTEX_INIT_FAST));
for (i=0; i<keys; i++)
VOID(my_rwlock_init(&share->key_root_lock[i], NULL));
VOID(my_rwlock_init(&share->mmap_lock, NULL));
if (!thr_lock_inited)
{
/* Probably a single threaded program; Don't use concurrent inserts */
maria_concurrent_insert=0;
}
else if (maria_concurrent_insert)
{
share->concurrent_insert=
((share->options & (HA_OPTION_READ_ONLY_DATA | HA_OPTION_TMP_TABLE |
HA_OPTION_COMPRESS_RECORD |
HA_OPTION_TEMP_COMPRESS_RECORD)) ||
(open_flags & HA_OPEN_TMP_TABLE) ||
share->data_file_type == BLOCK_RECORD ||
share->have_rtree) ? 0 : 1;
if (share->concurrent_insert)
{
share->lock.get_status=_ma_get_status;
share->lock.copy_status=_ma_copy_status;
/**
@todo RECOVERY
INSERT DELAYED and concurrent inserts are currently disabled for
transactional tables; when enabled again, we should re-evaluate
what problems the call to _ma_update_status() by
thr_reschedule_write_lock() can do (it may hurt Checkpoint as it
would be without intern_lock, and it modifies the state).
*/
share->lock.update_status=_ma_update_status;
share->lock.restore_status=_ma_restore_status;
share->lock.check_status=_ma_check_status;
}
}
#endif
/*
Memory mapping can only be requested after initializing intern_lock.
*/
if (open_flags & HA_OPEN_MMAP)
{
info.s= share;
maria_extra(&info, HA_EXTRA_MMAP, 0);
}
}
else
{
share= old_info->s;
if (share->data_file_type == BLOCK_RECORD)
data_file= share->bitmap.file.file; /* Only opened once */
}
if (!(m_info= maria_clone_internal(share, mode, data_file)))
goto err;
pthread_mutex_unlock(&THR_LOCK_maria);
DBUG_RETURN(m_info);
err:
save_errno=my_errno ? my_errno : HA_ERR_END_OF_FILE;
if ((save_errno == HA_ERR_CRASHED) ||
(save_errno == HA_ERR_CRASHED_ON_USAGE) ||
(save_errno == HA_ERR_CRASHED_ON_REPAIR))
_ma_report_error(save_errno, name);
switch (errpos) {
case 5:
if (data_file >= 0)
VOID(my_close(data_file, MYF(0)));
if (old_info)
break; /* Don't remove open table */
(*share->once_end)(share);
/* fall through */
case 4:
my_free((uchar*) share,MYF(0));
/* fall through */
case 3:
/* fall through */
case 2:
my_afree((uchar*) disk_cache);
/* fall through */
case 1:
VOID(my_close(kfile,MYF(0)));
/* fall through */
case 0:
default:
break;
}
pthread_mutex_unlock(&THR_LOCK_maria);
my_errno= save_errno;
DBUG_RETURN (NULL);
} /* maria_open */
/*
Reallocate a buffer, if the current buffer is not large enough
*/
my_bool _ma_alloc_buffer(uchar **old_addr, size_t *old_size,
size_t new_size)
{
if (*old_size < new_size)
{
uchar *addr;
if (!(addr= (uchar*) my_realloc((uchar*) *old_addr, new_size,
MYF(MY_ALLOW_ZERO_PTR))))
return 1;
*old_addr= addr;
*old_size= new_size;
}
return 0;
}
ulonglong _ma_safe_mul(ulonglong a, ulonglong b)
{
ulonglong max_val= ~ (ulonglong) 0; /* my_off_t is unsigned */
if (!a || max_val / a < b)
return max_val;
return a*b;
}
/* Set up functions in structs */
void _ma_setup_functions(register MARIA_SHARE *share)
{
share->once_init= maria_once_init_dummy;
share->once_end= maria_once_end_dummy;
share->init= maria_scan_init_dummy;
share->end= maria_scan_end_dummy;
share->scan_init= maria_scan_init_dummy;/* Compat. dummy function */
share->scan_end= maria_scan_end_dummy;/* Compat. dummy function */
share->write_record_init= _ma_write_init_default;
share->write_record_abort= _ma_write_abort_default;
switch (share->data_file_type) {
case COMPRESSED_RECORD:
share->read_record= _ma_read_pack_record;
share->scan= _ma_read_rnd_pack_record;
share->once_init= _ma_once_init_pack_row;
share->once_end= _ma_once_end_pack_row;
/*
Calculate checksum according to data in the original, not compressed,
row.
*/
if (share->state.header.org_data_file_type == STATIC_RECORD &&
! (share->options & HA_OPTION_NULL_FIELDS))
share->calc_checksum= _ma_static_checksum;
else
share->calc_checksum= _ma_checksum;
share->calc_write_checksum= share->calc_checksum;
break;
case DYNAMIC_RECORD:
share->read_record= _ma_read_dynamic_record;
share->scan= _ma_read_rnd_dynamic_record;
share->delete_record= _ma_delete_dynamic_record;
share->compare_record= _ma_cmp_dynamic_record;
share->compare_unique= _ma_cmp_dynamic_unique;
share->calc_checksum= share->calc_write_checksum= _ma_checksum;
/* add bits used to pack data to pack_reclength for faster allocation */
share->base.pack_reclength+= share->base.pack_bytes;
if (share->base.blobs)
{
share->update_record= _ma_update_blob_record;
share->write_record= _ma_write_blob_record;
}
else
{
share->write_record= _ma_write_dynamic_record;
share->update_record= _ma_update_dynamic_record;
}
break;
case STATIC_RECORD:
share->read_record= _ma_read_static_record;
share->scan= _ma_read_rnd_static_record;
share->delete_record= _ma_delete_static_record;
share->compare_record= _ma_cmp_static_record;
share->update_record= _ma_update_static_record;
share->write_record= _ma_write_static_record;
share->compare_unique= _ma_cmp_static_unique;
if (share->state.header.org_data_file_type == STATIC_RECORD &&
! (share->options & HA_OPTION_NULL_FIELDS))
share->calc_checksum= _ma_static_checksum;
else
share->calc_checksum= _ma_checksum;
break;
case BLOCK_RECORD:
share->once_init= _ma_once_init_block_record;
share->once_end= _ma_once_end_block_record;
share->init= _ma_init_block_record;
share->end= _ma_end_block_record;
share->write_record_init= _ma_write_init_block_record;
share->write_record_abort= _ma_write_abort_block_record;
share->scan_init= _ma_scan_init_block_record;
share->scan_end= _ma_scan_end_block_record;
share->read_record= _ma_read_block_record;
share->scan= _ma_scan_block_record;
share->delete_record= _ma_delete_block_record;
share->compare_record= _ma_compare_block_record;
share->update_record= _ma_update_block_record;
share->write_record= _ma_write_block_record;
share->compare_unique= _ma_cmp_block_unique;
share->calc_checksum= _ma_checksum;
/*
write_block_record() will calculate the checksum; Tell maria_write()
that it doesn't have to do this.
*/
share->calc_write_checksum= 0;
break;
}
share->file_read= _ma_nommap_pread;
share->file_write= _ma_nommap_pwrite;
share->calc_check_checksum= share->calc_checksum;
if (!(share->options & HA_OPTION_CHECKSUM) &&
share->data_file_type != COMPRESSED_RECORD)
share->calc_checksum= share->calc_write_checksum= 0;
return;
}
static void setup_key_functions(register MARIA_KEYDEF *keyinfo)
{
if (keyinfo->key_alg == HA_KEY_ALG_RTREE)
{
#ifdef HAVE_RTREE_KEYS
keyinfo->ck_insert = maria_rtree_insert;
keyinfo->ck_delete = maria_rtree_delete;
#else
DBUG_ASSERT(0); /* maria_open should check it never happens */
#endif
}
else
{
keyinfo->ck_insert = _ma_ck_write;
keyinfo->ck_delete = _ma_ck_delete;
}
if (keyinfo->flag & HA_BINARY_PACK_KEY)
{ /* Simple prefix compression */
keyinfo->bin_search= _ma_seq_search;
keyinfo->get_key= _ma_get_binary_pack_key;
keyinfo->pack_key= _ma_calc_bin_pack_key_length;
keyinfo->store_key= _ma_store_bin_pack_key;
}
else if (keyinfo->flag & HA_VAR_LENGTH_KEY)
{
keyinfo->get_key= _ma_get_pack_key;
if (keyinfo->seg[0].flag & HA_PACK_KEY)
{ /* Prefix compression */
if (!keyinfo->seg->charset || use_strnxfrm(keyinfo->seg->charset) ||
(keyinfo->seg->flag & HA_NULL_PART))
keyinfo->bin_search= _ma_seq_search;
else
keyinfo->bin_search= _ma_prefix_search;
keyinfo->pack_key= _ma_calc_var_pack_key_length;
keyinfo->store_key= _ma_store_var_pack_key;
}
else
{
keyinfo->bin_search= _ma_seq_search;
keyinfo->pack_key= _ma_calc_var_key_length; /* Variable length key */
keyinfo->store_key= _ma_store_static_key;
}
}
else
{
keyinfo->bin_search= _ma_bin_search;
keyinfo->get_key= _ma_get_static_key;
keyinfo->pack_key= _ma_calc_static_key_length;
keyinfo->store_key= _ma_store_static_key;
}
return;
}
/**
@brief Function to save and store the header in the index file (.MYI)
Operates under MARIA_SHARE::intern_lock if requested.
Sets MARIA_SHARE::MARIA_STATE_INFO::is_of_horizon if transactional table.
Then calls _ma_state_info_write_sub().
@param share table
@param pWrite bitmap: if 1 is set my_pwrite() is used otherwise
my_write(); if 2 is set, info about keys is written
(should only be needed after ALTER TABLE
ENABLE/DISABLE KEYS, and REPAIR/OPTIMIZE); if 4 is
set, MARIA_SHARE::intern_lock is taken.
@return Operation status
@retval 0 OK
@retval 1 Error
*/
uint _ma_state_info_write(MARIA_SHARE *share, uint pWrite)
{
uint res;
if (pWrite & 4)
pthread_mutex_lock(&share->intern_lock);
else if (maria_multi_threaded)
{
safe_mutex_assert_owner(&share->intern_lock);
}
if (share->base.born_transactional && translog_inited &&
!maria_in_recovery)
{
/*
In a recovery, we want to set is_of_horizon to the LSN of the last
record executed by Recovery, not the current EOF of the log (which
is too new). Recovery does it by itself.
*/
share->state.is_of_horizon= translog_get_horizon();
DBUG_PRINT("info", ("is_of_horizon set to LSN (%lu,0x%lx)",
LSN_IN_PARTS(share->state.is_of_horizon)));
}
res= _ma_state_info_write_sub(share->kfile.file, &share->state, pWrite);
if (pWrite & 4)
pthread_mutex_unlock(&share->intern_lock);
return res;
}
/**
@brief Function to save and store the header in the index file (.MYI).
Shortcut to use instead of _ma_state_info_write() when appropriate.
@param file descriptor of the index file to write
@param state state information to write to the file
@param pWrite bitmap: if 1 is set my_pwrite() is used otherwise
my_write(); if 2 is set, info about keys is written
(should only be needed after ALTER TABLE
ENABLE/DISABLE KEYS, and REPAIR/OPTIMIZE).
@return Operation status
@retval 0 OK
@retval 1 Error
*/
uint _ma_state_info_write_sub(File file, MARIA_STATE_INFO *state, uint pWrite)
{
/** @todo RECOVERY write it only at checkpoint time */
uchar buff[MARIA_STATE_INFO_SIZE + MARIA_STATE_EXTRA_SIZE];
uchar *ptr=buff;
uint i, keys= (uint) state->header.keys;
size_t res;
DBUG_ENTER("_ma_state_info_write");
memcpy_fixed(ptr,&state->header,sizeof(state->header));
ptr+=sizeof(state->header);
/* open_count must be first because of _ma_mark_file_changed ! */
mi_int2store(ptr,state->open_count); ptr+= 2;
/*
if you change the offset of create_rename_lsn/is_of_horizon inside the
index file's header, fix ma_create + ma_rename + ma_delete_all +
backward-compatibility.
*/
lsn_store(ptr, state->create_rename_lsn); ptr+= LSN_STORE_SIZE;
lsn_store(ptr, state->is_of_horizon); ptr+= LSN_STORE_SIZE;
*ptr++= (uchar)state->changed;
*ptr++= state->sortkey;
mi_rowstore(ptr,state->state.records); ptr+= 8;
mi_rowstore(ptr,state->state.del); ptr+= 8;
mi_rowstore(ptr,state->split); ptr+= 8;
mi_sizestore(ptr,state->dellink); ptr+= 8;
mi_sizestore(ptr,state->first_bitmap_with_space); ptr+= 8;
mi_sizestore(ptr,state->state.key_file_length); ptr+= 8;
mi_sizestore(ptr,state->state.data_file_length); ptr+= 8;
mi_sizestore(ptr,state->state.empty); ptr+= 8;
mi_sizestore(ptr,state->state.key_empty); ptr+= 8;
mi_int8store(ptr,state->auto_increment); ptr+= 8;
mi_int8store(ptr,(ulonglong) state->state.checksum); ptr+= 8;
mi_int4store(ptr,state->process); ptr+= 4;
mi_int4store(ptr,state->unique); ptr+= 4;
mi_int4store(ptr,state->status); ptr+= 4;
mi_int4store(ptr,state->update_count); ptr+= 4;
ptr+= state->state_diff_length;
for (i=0; i < keys; i++)
{
mi_sizestore(ptr,state->key_root[i]); ptr+= 8;
}
/** @todo RECOVERY BUG key_del is a problem for recovery */
mi_sizestore(ptr,state->key_del); ptr+= 8;
if (pWrite & 2) /* From maria_chk */
{
uint key_parts= mi_uint2korr(state->header.key_parts);
mi_int4store(ptr,state->sec_index_changed); ptr+= 4;
mi_int4store(ptr,state->sec_index_used); ptr+= 4;
mi_int4store(ptr,state->version); ptr+= 4;
mi_int8store(ptr,state->key_map); ptr+= 8;
mi_int8store(ptr,(ulonglong) state->create_time); ptr+= 8;
mi_int8store(ptr,(ulonglong) state->recover_time); ptr+= 8;
mi_int8store(ptr,(ulonglong) state->check_time); ptr+= 8;
mi_sizestore(ptr,state->rec_per_key_rows); ptr+= 8;
for (i=0 ; i < key_parts ; i++)
{
mi_int4store(ptr,state->rec_per_key_part[i]); ptr+=4;
}
}
res= (pWrite & 1) ?
my_pwrite(file, buff, (size_t) (ptr-buff), 0L,
MYF(MY_NABP | MY_THREADSAFE)) :
my_write(file, buff, (size_t) (ptr-buff),
MYF(MY_NABP));
DBUG_RETURN(res != 0);
}
static uchar *_ma_state_info_read(uchar *ptr, MARIA_STATE_INFO *state)
{
uint i,keys,key_parts;
memcpy_fixed(&state->header,ptr, sizeof(state->header));
ptr+= sizeof(state->header);
keys= (uint) state->header.keys;
key_parts= mi_uint2korr(state->header.key_parts);
state->open_count = mi_uint2korr(ptr); ptr+= 2;
state->create_rename_lsn= lsn_korr(ptr); ptr+= LSN_STORE_SIZE;
state->is_of_horizon= lsn_korr(ptr); ptr+= LSN_STORE_SIZE;
state->changed= (my_bool) *ptr++;
state->sortkey= (uint) *ptr++;
state->state.records= mi_rowkorr(ptr); ptr+= 8;
state->state.del = mi_rowkorr(ptr); ptr+= 8;
state->split = mi_rowkorr(ptr); ptr+= 8;
state->dellink= mi_sizekorr(ptr); ptr+= 8;
state->first_bitmap_with_space= mi_sizekorr(ptr); ptr+= 8;
state->state.key_file_length = mi_sizekorr(ptr); ptr+= 8;
state->state.data_file_length= mi_sizekorr(ptr); ptr+= 8;
state->state.empty = mi_sizekorr(ptr); ptr+= 8;
state->state.key_empty= mi_sizekorr(ptr); ptr+= 8;
state->auto_increment=mi_uint8korr(ptr); ptr+= 8;
state->state.checksum=(ha_checksum) mi_uint8korr(ptr);ptr+= 8;
state->process= mi_uint4korr(ptr); ptr+= 4;
state->unique = mi_uint4korr(ptr); ptr+= 4;
state->status = mi_uint4korr(ptr); ptr+= 4;
state->update_count=mi_uint4korr(ptr); ptr+= 4;
ptr+= state->state_diff_length;
for (i=0; i < keys; i++)
{
state->key_root[i]= mi_sizekorr(ptr); ptr+= 8;
}
state->key_del= mi_sizekorr(ptr); ptr+= 8;
state->sec_index_changed = mi_uint4korr(ptr); ptr+= 4;
state->sec_index_used = mi_uint4korr(ptr); ptr+= 4;
state->version = mi_uint4korr(ptr); ptr+= 4;
state->key_map = mi_uint8korr(ptr); ptr+= 8;
state->create_time = (time_t) mi_sizekorr(ptr); ptr+= 8;
state->recover_time =(time_t) mi_sizekorr(ptr); ptr+= 8;
state->check_time = (time_t) mi_sizekorr(ptr); ptr+= 8;
state->rec_per_key_rows=mi_sizekorr(ptr); ptr+= 8;
for (i=0 ; i < key_parts ; i++)
{
state->rec_per_key_part[i]= mi_uint4korr(ptr); ptr+=4;
}
return ptr;
}
/**
@brief Fills the state by reading its copy on disk.
Should not be called for transactional tables, as their state on disk is
rarely current and so is often misleading for a reader.
Does nothing in single user mode.
@param file file to read from
@param state state which will be filled
@param pRead if true, use my_pread(), otherwise my_read()
*/
uint _ma_state_info_read_dsk(File file, MARIA_STATE_INFO *state)
{
uchar buff[MARIA_STATE_INFO_SIZE + MARIA_STATE_EXTRA_SIZE];
/* trick to detect transactional tables */
DBUG_ASSERT(state->create_rename_lsn == LSN_IMPOSSIBLE);
if (!maria_single_user)
{
if (my_pread(file, buff, state->state_length, 0L, MYF(MY_NABP)))
return 1;
_ma_state_info_read(buff, state);
}
return 0;
}
/****************************************************************************
** store and read of MARIA_BASE_INFO
****************************************************************************/
uint _ma_base_info_write(File file, MARIA_BASE_INFO *base)
{
uchar buff[MARIA_BASE_INFO_SIZE], *ptr=buff;
mi_sizestore(ptr,base->keystart); ptr+= 8;
mi_sizestore(ptr,base->max_data_file_length); ptr+= 8;
mi_sizestore(ptr,base->max_key_file_length); ptr+= 8;
mi_rowstore(ptr,base->records); ptr+= 8;
mi_rowstore(ptr,base->reloc); ptr+= 8;
mi_int4store(ptr,base->mean_row_length); ptr+= 4;
mi_int4store(ptr,base->reclength); ptr+= 4;
mi_int4store(ptr,base->pack_reclength); ptr+= 4;
mi_int4store(ptr,base->min_pack_length); ptr+= 4;
mi_int4store(ptr,base->max_pack_length); ptr+= 4;
mi_int4store(ptr,base->min_block_length); ptr+= 4;
mi_int2store(ptr,base->fields); ptr+= 2;
mi_int2store(ptr,base->fixed_not_null_fields); ptr+= 2;
mi_int2store(ptr,base->fixed_not_null_fields_length); ptr+= 2;
mi_int2store(ptr,base->max_field_lengths); ptr+= 2;
mi_int2store(ptr,base->pack_fields); ptr+= 2;
mi_int2store(ptr,0); ptr+= 2;
mi_int2store(ptr,base->null_bytes); ptr+= 2;
mi_int2store(ptr,base->original_null_bytes); ptr+= 2;
mi_int2store(ptr,base->field_offsets); ptr+= 2;
mi_int2store(ptr,base->min_row_length); ptr+= 2;
mi_int2store(ptr,base->block_size); ptr+= 2;
*ptr++= base->rec_reflength;
*ptr++= base->key_reflength;
*ptr++= base->keys;
*ptr++= base->auto_key;
*ptr++= base->born_transactional;
*ptr++= 0; /* Reserved */
mi_int2store(ptr,base->pack_bytes); ptr+= 2;
mi_int2store(ptr,base->blobs); ptr+= 2;
mi_int2store(ptr,base->max_key_block_length); ptr+= 2;
mi_int2store(ptr,base->max_key_length); ptr+= 2;
mi_int2store(ptr,base->extra_alloc_bytes); ptr+= 2;
*ptr++= base->extra_alloc_procent;
bzero(ptr,16); ptr+= 16; /* extra */
DBUG_ASSERT((ptr - buff) == MARIA_BASE_INFO_SIZE);
return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
}
static uchar *_ma_base_info_read(uchar *ptr, MARIA_BASE_INFO *base)
{
base->keystart= mi_sizekorr(ptr); ptr+= 8;
base->max_data_file_length= mi_sizekorr(ptr); ptr+= 8;
base->max_key_file_length= mi_sizekorr(ptr); ptr+= 8;
base->records= (ha_rows) mi_sizekorr(ptr); ptr+= 8;
base->reloc= (ha_rows) mi_sizekorr(ptr); ptr+= 8;
base->mean_row_length= mi_uint4korr(ptr); ptr+= 4;
base->reclength= mi_uint4korr(ptr); ptr+= 4;
base->pack_reclength= mi_uint4korr(ptr); ptr+= 4;
base->min_pack_length= mi_uint4korr(ptr); ptr+= 4;
base->max_pack_length= mi_uint4korr(ptr); ptr+= 4;
base->min_block_length= mi_uint4korr(ptr); ptr+= 4;
base->fields= mi_uint2korr(ptr); ptr+= 2;
base->fixed_not_null_fields= mi_uint2korr(ptr); ptr+= 2;
base->fixed_not_null_fields_length= mi_uint2korr(ptr);ptr+= 2;
base->max_field_lengths= mi_uint2korr(ptr); ptr+= 2;
base->pack_fields= mi_uint2korr(ptr); ptr+= 2;
ptr+= 2;
base->null_bytes= mi_uint2korr(ptr); ptr+= 2;
base->original_null_bytes= mi_uint2korr(ptr); ptr+= 2;
base->field_offsets= mi_uint2korr(ptr); ptr+= 2;
base->min_row_length= mi_uint2korr(ptr); ptr+= 2;
base->block_size= mi_uint2korr(ptr); ptr+= 2;
base->rec_reflength= *ptr++;
base->key_reflength= *ptr++;
base->keys= *ptr++;
base->auto_key= *ptr++;
base->born_transactional= *ptr++;
ptr++;
base->pack_bytes= mi_uint2korr(ptr); ptr+= 2;
base->blobs= mi_uint2korr(ptr); ptr+= 2;
base->max_key_block_length= mi_uint2korr(ptr); ptr+= 2;
base->max_key_length= mi_uint2korr(ptr); ptr+= 2;
base->extra_alloc_bytes= mi_uint2korr(ptr); ptr+= 2;
base->extra_alloc_procent= *ptr++;
ptr+= 16;
return ptr;
}
/*--------------------------------------------------------------------------
maria_keydef
---------------------------------------------------------------------------*/
uint _ma_keydef_write(File file, MARIA_KEYDEF *keydef)
{
uchar buff[MARIA_KEYDEF_SIZE];
uchar *ptr=buff;
*ptr++= (uchar) keydef->keysegs;
*ptr++= keydef->key_alg; /* Rtree or Btree */
mi_int2store(ptr,keydef->flag); ptr+= 2;
mi_int2store(ptr,keydef->block_length); ptr+= 2;
mi_int2store(ptr,keydef->keylength); ptr+= 2;
mi_int2store(ptr,keydef->minlength); ptr+= 2;
mi_int2store(ptr,keydef->maxlength); ptr+= 2;
return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
}
uchar *_ma_keydef_read(uchar *ptr, MARIA_KEYDEF *keydef)
{
keydef->keysegs = (uint) *ptr++;
keydef->key_alg = *ptr++; /* Rtree or Btree */
keydef->flag = mi_uint2korr(ptr); ptr+= 2;
keydef->block_length = mi_uint2korr(ptr); ptr+= 2;
keydef->keylength = mi_uint2korr(ptr); ptr+= 2;
keydef->minlength = mi_uint2korr(ptr); ptr+= 2;
keydef->maxlength = mi_uint2korr(ptr); ptr+= 2;
keydef->underflow_block_length=keydef->block_length/3;
keydef->version = 0; /* Not saved */
keydef->parser = &ft_default_parser;
keydef->ftparser_nr = 0;
return ptr;
}
/***************************************************************************
** maria_keyseg
***************************************************************************/
int _ma_keyseg_write(File file, const HA_KEYSEG *keyseg)
{
uchar buff[HA_KEYSEG_SIZE];
uchar *ptr=buff;
ulong pos;
*ptr++= keyseg->type;
*ptr++= keyseg->language;
*ptr++= keyseg->null_bit;
*ptr++= keyseg->bit_start;
*ptr++= keyseg->bit_end;
*ptr++= keyseg->bit_length;
mi_int2store(ptr,keyseg->flag); ptr+= 2;
mi_int2store(ptr,keyseg->length); ptr+= 2;
mi_int4store(ptr,keyseg->start); ptr+= 4;
pos= keyseg->null_bit ? keyseg->null_pos : keyseg->bit_pos;
mi_int4store(ptr, pos);
ptr+=4;
return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
}
uchar *_ma_keyseg_read(uchar *ptr, HA_KEYSEG *keyseg)
{
keyseg->type = *ptr++;
keyseg->language = *ptr++;
keyseg->null_bit = *ptr++;
keyseg->bit_start = *ptr++;
keyseg->bit_end = *ptr++;
keyseg->bit_length = *ptr++;
keyseg->flag = mi_uint2korr(ptr); ptr+= 2;
keyseg->length = mi_uint2korr(ptr); ptr+= 2;
keyseg->start = mi_uint4korr(ptr); ptr+= 4;
keyseg->null_pos = mi_uint4korr(ptr); ptr+= 4;
keyseg->charset=0; /* Will be filled in later */
if (keyseg->null_bit)
keyseg->bit_pos= (uint16)(keyseg->null_pos + (keyseg->null_bit == 7));
else
{
keyseg->bit_pos= (uint16)keyseg->null_pos;
keyseg->null_pos= 0;
}
return ptr;
}
/*--------------------------------------------------------------------------
maria_uniquedef
---------------------------------------------------------------------------*/
uint _ma_uniquedef_write(File file, MARIA_UNIQUEDEF *def)
{
uchar buff[MARIA_UNIQUEDEF_SIZE];
uchar *ptr=buff;
mi_int2store(ptr,def->keysegs); ptr+=2;
*ptr++= (uchar) def->key;
*ptr++ = (uchar) def->null_are_equal;
return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
}
uchar *_ma_uniquedef_read(uchar *ptr, MARIA_UNIQUEDEF *def)
{
def->keysegs = mi_uint2korr(ptr);
def->key = ptr[2];
def->null_are_equal=ptr[3];
return ptr+4; /* 1 extra uchar */
}
/***************************************************************************
** MARIA_COLUMNDEF
***************************************************************************/
uint _ma_columndef_write(File file, MARIA_COLUMNDEF *columndef)
{
uchar buff[MARIA_COLUMNDEF_SIZE];
uchar *ptr=buff;
mi_int6store(ptr,columndef->offset); ptr+= 6;
mi_int2store(ptr,columndef->type); ptr+= 2;
mi_int2store(ptr,columndef->length); ptr+= 2;
mi_int2store(ptr,columndef->fill_length); ptr+= 2;
mi_int2store(ptr,columndef->null_pos); ptr+= 2;
mi_int2store(ptr,columndef->empty_pos); ptr+= 2;
(*ptr++)= columndef->null_bit;
(*ptr++)= columndef->empty_bit;
return my_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
}
uchar *_ma_columndef_read(uchar *ptr, MARIA_COLUMNDEF *columndef)
{
columndef->offset= mi_uint6korr(ptr); ptr+= 6;
columndef->type= mi_sint2korr(ptr); ptr+= 2;
columndef->length= mi_uint2korr(ptr); ptr+= 2;
columndef->fill_length= mi_uint2korr(ptr); ptr+= 2;
columndef->null_pos= mi_uint2korr(ptr); ptr+= 2;
columndef->empty_pos= mi_uint2korr(ptr); ptr+= 2;
columndef->null_bit= (uint8) *ptr++;
columndef->empty_bit= (uint8) *ptr++;
return ptr;
}
/**************************************************************************
Open data file
We can't use dup() here as the data file descriptors need to have different
active seek-positions.
The argument file_to_dup is here for the future if there would on some OS
exist a dup()-like call that would give us two different file descriptors.
*************************************************************************/
int _ma_open_datafile(MARIA_HA *info, MARIA_SHARE *share,
File file_to_dup __attribute__((unused)))
{
info->dfile.file= share->bitmap.file.file=
my_open(share->data_file_name, share->mode | O_SHARE,
MYF(MY_WME));
return info->dfile.file >= 0 ? 0 : 1;
}
int _ma_open_keyfile(MARIA_SHARE *share)
{
/*
Modifications to share->kfile should be under intern_lock to protect
against a concurrent checkpoint.
*/
pthread_mutex_lock(&share->intern_lock);
share->kfile.file= my_open(share->unique_file_name,
share->mode | O_SHARE,
MYF(MY_WME));
pthread_mutex_unlock(&share->intern_lock);
return (share->kfile.file < 0);
}
/*
Disable all indexes.
SYNOPSIS
maria_disable_indexes()
info A pointer to the MARIA storage engine MARIA_HA struct.
DESCRIPTION
Disable all indexes.
RETURN
0 ok
*/
int maria_disable_indexes(MARIA_HA *info)
{
MARIA_SHARE *share= info->s;
maria_clear_all_keys_active(share->state.key_map);
return 0;
}
/*
Enable all indexes
SYNOPSIS
maria_enable_indexes()
info A pointer to the MARIA storage engine MARIA_HA struct.
DESCRIPTION
Enable all indexes. The indexes might have been disabled
by maria_disable_index() before.
The function works only if both data and indexes are empty,
otherwise a repair is required.
To be sure, call handler::delete_all_rows() before.
RETURN
0 ok
HA_ERR_CRASHED data or index is non-empty.
*/
int maria_enable_indexes(MARIA_HA *info)
{
int error= 0;
MARIA_SHARE *share= info->s;
if (share->state.state.data_file_length ||
(share->state.state.key_file_length != share->base.keystart))
{
maria_print_error(info->s, HA_ERR_CRASHED);
error= HA_ERR_CRASHED;
}
else
maria_set_all_keys_active(share->state.key_map, share->base.keys);
return error;
}
/*
Test if indexes are disabled.
SYNOPSIS
maria_indexes_are_disabled()
info A pointer to the MARIA storage engine MARIA_HA struct.
DESCRIPTION
Test if indexes are disabled.
RETURN
0 indexes are not disabled
1 all indexes are disabled
2 non-unique indexes are disabled
*/
int maria_indexes_are_disabled(MARIA_HA *info)
{
MARIA_SHARE *share= info->s;
/*
No keys or all are enabled. keys is the number of keys. Left shifted
gives us only one bit set. When decreased by one, gives us all all bits
up to this one set and it gets unset.
*/
if (!share->base.keys ||
(maria_is_all_keys_active(share->state.key_map, share->base.keys)))
return 0;
/* All are disabled */
if (maria_is_any_key_active(share->state.key_map))
return 1;
/*
We have keys. Some enabled, some disabled.
Don't check for any non-unique disabled but return directly 2
*/
return 2;
}
static my_bool maria_scan_init_dummy(MARIA_HA *info __attribute__((unused)))
{
return 0;
}
static void maria_scan_end_dummy(MARIA_HA *info __attribute__((unused)))
{
}
static my_bool maria_once_init_dummy(MARIA_SHARE *share
__attribute__((unused)),
File dfile __attribute__((unused)))
{
return 0;
}
static my_bool maria_once_end_dummy(MARIA_SHARE *share __attribute__((unused)))
{
return 0;
}
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