mariadb/myisam/mi_extra.c
unknown e72124c4cc CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
New multi-key-cache handling. This was needed becasue the old one didn't work reliable with MERGE tables.
ALTER TABLE table_name ... CHARACTER SET  ... now changes all char/varchar/text columns to the given character set
(One must use ALTER TABLE ... DEFAULT CHARACTER SET ... to change the default character set)
Fixed that have_compress is detected properly (fixes problems with func_compress.test on platforms without zlib)
New syntax for CACHE INDEX ('keys' is optional if no index name is given and one mentions the key cache name only ones)
Removed compiler warnings
Added mysql_set_server_option() to allow clients like PHP to easaily set/reset the multi-statement flag.


BUILD/compile-pentium-valgrind-max:
  Add test of isam
client/mysql.cc:
  CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
include/my_base.h:
  Remove HA_EXTRA_SET_KEY_CACHE
include/my_no_pthread.h:
  Add defines to ignore rw-locks when running without threads
include/my_sys.h:
  Added function for multi-key-caches
include/myisam.h:
  Added function to handle multi-key-caches
include/mysql.h:
  Added mysql_set_server_option
include/mysql_com.h:
  CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
  Added enum_mysql_set_option
include/mysqld_error.h:
  Added error message for unknown key cache
innobase/srv/srv0start.c:
  Removed warning that is confused for MySQL users
libmysql/libmysql.c:
  Added mysql_set_server_option()
libmysql/libmysql.def:
  Added mysql_set_server_option()
myisam/ft_nlq_search.c:
  Removed compiler warning
myisam/ft_static.c:
  Removed compiler warning and fixed wrong return value
myisam/mi_check.c:
  Clean up multi-key-cache usage
myisam/mi_checksum.c:
  Removed not used variable
myisam/mi_close.c:
  keycache -> key_cache
myisam/mi_delete_all.c:
  keycache -> key_cache
myisam/mi_extra.c:
  keycache -> key_cache
  Removed HA_EXTRA_SET_KEY_CACHE
myisam/mi_keycache.c:
  Changed logic so that it's MyISAM that is responsible for assign tables to different key caches instead of the upper level
myisam/mi_locking.c:
  Don't change key cache on unlock (must be done before)
myisam/mi_open.c:
  Fetch key cache to use from multi_key_cache_search()
myisam/mi_page.c:
  keycache -> key_cache
myisam/mi_panic.c:
  keycache -> key_cache
myisam/mi_preload.c:
  keycache -> key_cache
myisam/mi_test1.c:
  Use KEY_CACHE_BLOCK_SIZE
myisam/mi_test2.c:
  Always test resize_key_cache()
myisam/mi_test3.c:
  Use KEY_CACHE_BLOCK_SIZE instead of 512
myisam/myisamchk.c:
  update for multiple key caches
myisam/myisamdef.h:
  Remove reg_keycache
  Add unique_name_length for storing length of unique_file_name
myisam/myisamlog.c:
  Change how end_key_cache() is called
mysql-test/mysql-test-run.sh:
  Fixed web link
  Added name of failed test to abort row.
mysql-test/r/alter_table.result:
  Testing of ALTER TABLE ... [DEFAULT] CHARACTER SET
mysql-test/r/case.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/cast.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/create.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/ctype_collate.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/ctype_latin1_de.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/ctype_many.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/ctype_mb.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/ctype_recoding.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/ctype_ucs.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/derived.result:
  Use STRAIGHT_JOIN to make join order predictable
mysql-test/r/fulltext.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/func_str.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/func_system.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/gis-rtree.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/innodb.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/key_cache.result:
  Update test for new key cache syntax.
  Added more tests
mysql-test/r/merge.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/preload.result:
  New syntax
mysql-test/r/show_check.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/sql_mode.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/subselect.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/type_blob.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/type_enum.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/type_nchar.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/type_set.result:
  Update result for DEFAULT CHARSET...
mysql-test/r/union.result:
  Use STRAIGHT_JOIN to make join order predictable
mysql-test/t/alter_table.test:
  Testing of ALTER TABLE ... [DEFAULT] CHARACTER SET
mysql-test/t/ctype_many.test:
  Update result for DEFAULT CHARSET...
mysql-test/t/derived.test:
  Use STRAIGHT_JOIN to make join order predictable
mysql-test/t/isam.test:
  Use disable warnings for test loop
mysql-test/t/join.test:
  Update test now when we only support 61 tables in join
mysql-test/t/key_cache.test:
  Update test for new key cache syntax.
  Added more tests
mysql-test/t/preload.test:
  Update for new syntax
mysql-test/t/union.test:
  Use STRAIGHT_JOIN to make join order predictable
mysys/Makefile.am:
  Added mf_keycaches.c
mysys/hash.c:
  TRUE -> 1
mysys/mf_keycache.c:
  Removed compiler warnings
  Striped end space
  Fixed indentation and improved function comments
  TRUE -> 1
  Changed parameters to end_key_cache() to make it easer to use
  Fixed bug when using key blocks size > 1024 bytes (First part of index file could be overwritten with wrong data)
  Split function flush_key_blocks into two functions to not get mutex used twice when called from flush_all_key_blocks()
mysys/my_bitmap.c:
  More debugging
  Safe bitmap_free()
  Fixed indentation
mysys/my_getopt.c:
  Ensure that we initialize option->value, option->max_value and value from GET_ASK_ADDR
mysys/my_thr_init.c:
  Remove not used mutex THR_LOCK_keycache
mysys/typelib.c:
  Fixed function comments
sql-common/client.c:
  CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
  Fixed the multi_result flag is set also on SELECT;s
sql/ha_myisam.cc:
  Fixed multiple key_cache handling
  (Now done on MyISAM level)
sql/ha_myisammrg.cc:
  Fixed multiple key_cache handling
  (Now done on MyISAM level)
sql/handler.cc:
  New multi key cache handling
sql/handler.h:
  New multi key cache handling
  Added support for default character set
sql/item.h:
  Added function cleanup() (Needed for prepared statements / cursors)
sql/item_cmpfunc.h:
  Added cleanup function
sql/item_func.cc:
  Indentation cleanup
sql/mysql_priv.h:
  New multi-key-cache functions
  Removed LOCK_assign
sql/mysqld.cc:
  New multi-key-cache handling
  Fixed that variable have_compress is set correctly
sql/protocol.cc:
  SELECT didn't work reliable in multi-statements
sql/set_var.cc:
  Support for new key cache variables
sql/set_var.h:
  Support for new key cache variables
sql/share/czech/errmsg.txt:
  New error messages
sql/share/danish/errmsg.txt:
  New error messages
sql/share/dutch/errmsg.txt:
  New error messages
sql/share/english/errmsg.txt:
  New error messages
sql/share/estonian/errmsg.txt:
  New error messages
sql/share/french/errmsg.txt:
  New error messages
sql/share/german/errmsg.txt:
  New error messages
sql/share/greek/errmsg.txt:
  New error messages
sql/share/hungarian/errmsg.txt:
  New error messages
sql/share/italian/errmsg.txt:
  New error messages
sql/share/japanese/errmsg.txt:
  New error messages
sql/share/korean/errmsg.txt:
  New error messages
sql/share/norwegian-ny/errmsg.txt:
  New error messages
sql/share/norwegian/errmsg.txt:
  New error messages
sql/share/polish/errmsg.txt:
  New error messages
sql/share/portuguese/errmsg.txt:
  New error messages
sql/share/romanian/errmsg.txt:
  New error messages
sql/share/russian/errmsg.txt:
  New error messages
sql/share/serbian/errmsg.txt:
  New error messages
sql/share/slovak/errmsg.txt:
  New error messages
sql/share/spanish/errmsg.txt:
  New error messages
sql/share/swedish/errmsg.txt:
  New error messages
sql/share/ukrainian/errmsg.txt:
  New error messages
sql/sql_base.cc:
  Removed all key_cache handling (this is now done on MyISAM level)
  Change table_charset -> default_table_charset
sql/sql_db.cc:
  table_charset -> default_table_charset
sql/sql_delete.cc:
  table_charset -> default_table_charset
sql/sql_lex.cc:
  CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
sql/sql_lex.h:
  New option to store a name and length
sql/sql_parse.cc:
  Support for mysql_set_server_option()
  Reset "default" keycache status variables in 'FLUSH STATUS' (Need to be improved later)
sql/sql_show.cc:
  Add DEFAULT before CHARSET (for table character sets)
  Fetch key cache variables from 'sql_key_cache'
sql/sql_table.cc:
  table_charset -> default_table_charset
  New multi-key-cache handling
sql/sql_test.cc:
  Write information from all key caches
sql/sql_yacc.yy:
  Changed syntax for CACHE INDEX ...
  Force user to use DEFAULT before database/table level character sets
sql/structs.h:
  Added SHOW_KEY_CACHE_LONG (to get values from sql_key_cache)
sql/table.cc:
  table_charset -> default_table_charset
sql/table.h:
  New key cache handling (this is now done in mysys/mf_keycaches.c)
sql/unireg.h:
  A
2003-11-18 13:47:27 +02:00

376 lines
12 KiB
C

/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include "myisamdef.h"
#ifdef HAVE_MMAP
#include <sys/mman.h>
#endif
#ifdef __WIN__
#include <errno.h>
#endif
/*
Set options and buffers to optimize table handling
SYNOPSIS
mi_extra()
info open table
function operation
extra_arg Pointer to extra argument (normally pointer to ulong)
Used when function is one of:
HA_EXTRA_WRITE_CACHE
HA_EXTRA_CACHE
HA_EXTRA_BULK_INSERT_BEGIN
If extra_arg is 0, then the default cache size is used.
HA_EXTRA_BULK_INSERT_FLUSH
extra_arg is a a pointer to which index to flush (uint*)
RETURN VALUES
0 ok
*/
int mi_extra(MI_INFO *info, enum ha_extra_function function, void *extra_arg)
{
int error=0;
ulong cache_size;
MYISAM_SHARE *share=info->s;
DBUG_ENTER("mi_extra");
DBUG_PRINT("enter",("function: %d",(int) function));
switch (function) {
case HA_EXTRA_RESET:
/*
Free buffers and reset the following flags:
EXTRA_CACHE, EXTRA_WRITE_CACHE, EXTRA_KEYREAD, EXTRA_QUICK
If the row buffer cache is large (for dynamic tables), reduce it
to save memory.
*/
if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED))
{
info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
error=end_io_cache(&info->rec_cache);
}
if (share->base.blobs)
mi_alloc_rec_buff(info, -1, &info->rec_buff);
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
if (info->opt_flag & MEMMAP_USED)
madvise(share->file_map,share->state.state.data_file_length,MADV_RANDOM);
#endif
info->opt_flag&= ~(KEY_READ_USED | REMEMBER_OLD_POS);
info->quick_mode=0;
/* Fall through */
case HA_EXTRA_RESET_STATE: /* Reset state (don't free buffers) */
info->lastinx= 0; /* Use first index as def */
info->last_search_keypage=info->lastpos= HA_OFFSET_ERROR;
info->page_changed=1;
/* Next/prev gives first/last */
if (info->opt_flag & READ_CACHE_USED)
{
reinit_io_cache(&info->rec_cache,READ_CACHE,0,
(pbool) (info->lock_type != F_UNLCK),
(pbool) test(info->update & HA_STATE_ROW_CHANGED)
);
}
info->update= ((info->update & HA_STATE_CHANGED) | HA_STATE_NEXT_FOUND |
HA_STATE_PREV_FOUND);
break;
case HA_EXTRA_CACHE:
if (info->lock_type == F_UNLCK &&
(share->options & HA_OPTION_PACK_RECORD))
{
error=1; /* Not possibly if not locked */
my_errno=EACCES;
break;
}
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
if ((share->options & HA_OPTION_COMPRESS_RECORD))
{
pthread_mutex_lock(&share->intern_lock);
if (_mi_memmap_file(info))
{
/* We don't nead MADV_SEQUENTIAL if small file */
madvise(share->file_map,share->state.state.data_file_length,
share->state.state.data_file_length <= RECORD_CACHE_SIZE*16 ?
MADV_RANDOM : MADV_SEQUENTIAL);
pthread_mutex_unlock(&share->intern_lock);
break;
}
pthread_mutex_unlock(&share->intern_lock);
}
#endif
if (info->opt_flag & WRITE_CACHE_USED)
{
info->opt_flag&= ~WRITE_CACHE_USED;
if ((error=end_io_cache(&info->rec_cache)))
break;
}
if (!(info->opt_flag &
(READ_CACHE_USED | WRITE_CACHE_USED | MEMMAP_USED)))
{
cache_size= (extra_arg ? *(ulong*) extra_arg :
my_default_record_cache_size);
if (!(init_io_cache(&info->rec_cache,info->dfile,
(uint) min(info->state->data_file_length+1,
cache_size),
READ_CACHE,0L,(pbool) (info->lock_type != F_UNLCK),
MYF(share->write_flag & MY_WAIT_IF_FULL))))
{
info->opt_flag|=READ_CACHE_USED;
info->update&= ~HA_STATE_ROW_CHANGED;
}
if (share->concurrent_insert)
info->rec_cache.end_of_file=info->state->data_file_length;
}
break;
case HA_EXTRA_REINIT_CACHE:
if (info->opt_flag & READ_CACHE_USED)
{
reinit_io_cache(&info->rec_cache,READ_CACHE,info->nextpos,
(pbool) (info->lock_type != F_UNLCK),
(pbool) test(info->update & HA_STATE_ROW_CHANGED));
info->update&= ~HA_STATE_ROW_CHANGED;
if (share->concurrent_insert)
info->rec_cache.end_of_file=info->state->data_file_length;
}
break;
case HA_EXTRA_WRITE_CACHE:
if (info->lock_type == F_UNLCK)
{
error=1; /* Not possibly if not locked */
break;
}
cache_size= (extra_arg ? *(ulong*) extra_arg :
my_default_record_cache_size);
if (!(info->opt_flag &
(READ_CACHE_USED | WRITE_CACHE_USED | OPT_NO_ROWS)) &&
!share->state.header.uniques)
if (!(init_io_cache(&info->rec_cache,info->dfile, cache_size,
WRITE_CACHE,info->state->data_file_length,
(pbool) (info->lock_type != F_UNLCK),
MYF(share->write_flag & MY_WAIT_IF_FULL))))
{
info->opt_flag|=WRITE_CACHE_USED;
info->update&= ~(HA_STATE_ROW_CHANGED |
HA_STATE_WRITE_AT_END |
HA_STATE_EXTEND_BLOCK);
}
break;
case HA_EXTRA_PREPARE_FOR_UPDATE:
if (info->s->data_file_type != DYNAMIC_RECORD)
break;
/* Remove read/write cache if dynamic rows */
case HA_EXTRA_NO_CACHE:
if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED))
{
info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
error=end_io_cache(&info->rec_cache);
/* Sergei will insert full text index caching here */
}
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
if (info->opt_flag & MEMMAP_USED)
madvise(share->file_map,share->state.state.data_file_length,MADV_RANDOM);
#endif
break;
case HA_EXTRA_FLUSH_CACHE:
if (info->opt_flag & WRITE_CACHE_USED)
{
if ((error=flush_io_cache(&info->rec_cache)))
mi_mark_crashed(info); /* Fatal error found */
}
break;
case HA_EXTRA_NO_READCHECK:
info->opt_flag&= ~READ_CHECK_USED; /* No readcheck */
break;
case HA_EXTRA_READCHECK:
info->opt_flag|= READ_CHECK_USED;
break;
case HA_EXTRA_KEYREAD: /* Read only keys to record */
case HA_EXTRA_REMEMBER_POS:
info->opt_flag |= REMEMBER_OLD_POS;
bmove((byte*) info->lastkey+share->base.max_key_length*2,
(byte*) info->lastkey,info->lastkey_length);
info->save_update= info->update;
info->save_lastinx= info->lastinx;
info->save_lastpos= info->lastpos;
info->save_lastkey_length=info->lastkey_length;
if (function == HA_EXTRA_REMEMBER_POS)
break;
/* fall through */
case HA_EXTRA_KEYREAD_CHANGE_POS:
info->opt_flag |= KEY_READ_USED;
info->read_record=_mi_read_key_record;
break;
case HA_EXTRA_NO_KEYREAD:
case HA_EXTRA_RESTORE_POS:
if (info->opt_flag & REMEMBER_OLD_POS)
{
bmove((byte*) info->lastkey,
(byte*) info->lastkey+share->base.max_key_length*2,
info->save_lastkey_length);
info->update= info->save_update | HA_STATE_WRITTEN;
info->lastinx= info->save_lastinx;
info->lastpos= info->save_lastpos;
info->lastkey_length=info->save_lastkey_length;
}
info->read_record= share->read_record;
info->opt_flag&= ~(KEY_READ_USED | REMEMBER_OLD_POS);
break;
case HA_EXTRA_NO_USER_CHANGE: /* Database is somehow locked agains changes */
info->lock_type= F_EXTRA_LCK; /* Simulate as locked */
break;
case HA_EXTRA_WAIT_LOCK:
info->lock_wait=0;
break;
case HA_EXTRA_NO_WAIT_LOCK:
info->lock_wait=MY_DONT_WAIT;
break;
case HA_EXTRA_NO_KEYS:
if (info->lock_type == F_UNLCK)
{
error=1; /* Not possibly if not lock */
break;
}
if (share->state.key_map)
{
MI_KEYDEF *key=share->keyinfo;
uint i;
for (i=0 ; i < share->base.keys ; i++,key++)
{
if (!(key->flag & HA_NOSAME) && info->s->base.auto_key != i+1)
{
share->state.key_map&= ~ ((ulonglong) 1 << i);
info->update|= HA_STATE_CHANGED;
}
}
if (!share->changed)
{
share->state.changed|= STATE_CHANGED | STATE_NOT_ANALYZED;
share->changed=1; /* Update on close */
if (!share->global_changed)
{
share->global_changed=1;
share->state.open_count++;
}
}
share->state.state= *info->state;
error=mi_state_info_write(share->kfile,&share->state,1 | 2);
}
break;
case HA_EXTRA_FORCE_REOPEN:
pthread_mutex_lock(&THR_LOCK_myisam);
share->last_version= 0L; /* Impossible version */
pthread_mutex_unlock(&THR_LOCK_myisam);
break;
case HA_EXTRA_PREPARE_FOR_DELETE:
pthread_mutex_lock(&THR_LOCK_myisam);
share->last_version= 0L; /* Impossible version */
#ifdef __WIN__
/* Close the isam and data files as Win32 can't drop an open table */
pthread_mutex_lock(&share->intern_lock);
if (flush_key_blocks(*share->keycache, share->kfile,
(function == HA_EXTRA_FORCE_REOPEN ?
FLUSH_RELEASE : FLUSH_IGNORE_CHANGED)))
{
error=my_errno;
share->changed=1;
mi_mark_crashed(info); /* Fatal error found */
}
if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED))
{
info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
error=end_io_cache(&info->rec_cache);
}
if (info->lock_type != F_UNLCK && ! info->was_locked)
{
info->was_locked=info->lock_type;
if (mi_lock_database(info,F_UNLCK))
error=my_errno;
info->lock_type = F_UNLCK;
}
if (share->kfile >= 0)
_mi_decrement_open_count(info);
if (share->kfile >= 0 && my_close(share->kfile,MYF(0)))
error=my_errno;
{
LIST *list_element ;
for (list_element=myisam_open_list ;
list_element ;
list_element=list_element->next)
{
MI_INFO *tmpinfo=(MI_INFO*) list_element->data;
if (tmpinfo->s == info->s)
{
if (tmpinfo->dfile >= 0 && my_close(tmpinfo->dfile,MYF(0)))
error = my_errno;
tmpinfo->dfile= -1;
}
}
}
share->kfile= -1; /* Files aren't open anymore */
pthread_mutex_unlock(&share->intern_lock);
#endif
pthread_mutex_unlock(&THR_LOCK_myisam);
break;
case HA_EXTRA_FLUSH:
if (!share->temporary)
flush_key_blocks(*share->key_cache, share->kfile, FLUSH_KEEP);
#ifdef HAVE_PWRITE
_mi_decrement_open_count(info);
#endif
if (share->not_flushed)
{
share->not_flushed=0;
if (my_sync(share->kfile, MYF(0)))
error= my_errno;
if (my_sync(info->dfile, MYF(0)))
error= my_errno;
if (error)
{
share->changed=1;
mi_mark_crashed(info); /* Fatal error found */
}
}
if (share->base.blobs)
mi_alloc_rec_buff(info, -1, &info->rec_buff);
break;
case HA_EXTRA_NORMAL: /* Theese isn't in use */
info->quick_mode=0;
break;
case HA_EXTRA_QUICK:
info->quick_mode=1;
break;
case HA_EXTRA_NO_ROWS:
if (!share->state.header.uniques)
info->opt_flag|= OPT_NO_ROWS;
break;
case HA_EXTRA_PRELOAD_BUFFER_SIZE:
info->preload_buff_size= *((ulong *) extra_arg);
break;
case HA_EXTRA_KEY_CACHE:
case HA_EXTRA_NO_KEY_CACHE:
default:
break;
}
{
char tmp[1];
tmp[0]=function;
myisam_log_command(MI_LOG_EXTRA,info,(byte*) tmp,1,error);
}
DBUG_RETURN(error);
} /* mi_extra */