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15e1fbc37d
When doing CREATE TABLE ... ENGINE=MyISAM SELECT ... the MyISAM table was not completely flushed at commit which gave some warnings about table not closed in the atomic test suite. Fixed by flushing the table in select_insert::prepare_eof().
451 lines
14 KiB
C
451 lines
14 KiB
C
/*
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Copyright (c) 2000, 2010, Oracle and/or its affiliates
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#include "myisamdef.h"
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static void mi_extra_keyflag(MI_INFO *info, enum ha_extra_function function);
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/*
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Set options and buffers to optimize table handling
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SYNOPSIS
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mi_extra()
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info open table
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function operation
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extra_arg Pointer to extra argument (normally pointer to ulong)
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Used when function is one of:
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HA_EXTRA_WRITE_CACHE
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HA_EXTRA_CACHE
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RETURN VALUES
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0 ok
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# error
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*/
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int mi_extra(MI_INFO *info, enum ha_extra_function function, void *extra_arg)
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{
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int error=0;
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ulong cache_size;
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MYISAM_SHARE *share=info->s;
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DBUG_ENTER("mi_extra");
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DBUG_PRINT("enter",("function: %d",(int) function));
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switch (function) {
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case HA_EXTRA_RESET_STATE: /* Reset state (don't free buffers) */
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info->lastinx= 0; /* Use first index as def */
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info->last_search_keypage=info->lastpos= HA_OFFSET_ERROR;
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info->page_changed=1;
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/* Next/prev gives first/last */
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if (info->opt_flag & READ_CACHE_USED)
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{
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reinit_io_cache(&info->rec_cache,READ_CACHE,0,
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(pbool) (info->lock_type != F_UNLCK),
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(pbool) MY_TEST(info->update & HA_STATE_ROW_CHANGED)
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);
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}
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info->update= ((info->update & HA_STATE_CHANGED) | HA_STATE_NEXT_FOUND |
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HA_STATE_PREV_FOUND);
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break;
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case HA_EXTRA_CACHE:
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if (info->lock_type == F_UNLCK &&
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(share->options & HA_OPTION_PACK_RECORD))
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{
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error=1; /* Not possibly if not locked */
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my_errno=EACCES;
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break;
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}
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if (info->s->file_map) /* Don't use cache if mmap */
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break;
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#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
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if ((share->options & HA_OPTION_COMPRESS_RECORD))
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{
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mysql_mutex_lock(&share->intern_lock);
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if (_mi_memmap_file(info))
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{
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/* We don't nead MADV_SEQUENTIAL if small file */
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madvise((char*) share->file_map, share->state.state.data_file_length,
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share->state.state.data_file_length <= RECORD_CACHE_SIZE*16 ?
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MADV_RANDOM : MADV_SEQUENTIAL);
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mysql_mutex_unlock(&share->intern_lock);
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break;
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}
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mysql_mutex_unlock(&share->intern_lock);
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}
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#endif
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if (info->opt_flag & WRITE_CACHE_USED)
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{
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info->opt_flag&= ~WRITE_CACHE_USED;
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if ((error=end_io_cache(&info->rec_cache)))
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break;
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}
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if (!(info->opt_flag &
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(READ_CACHE_USED | WRITE_CACHE_USED | MEMMAP_USED)))
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{
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cache_size= (extra_arg ? *(ulong*) extra_arg :
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my_default_record_cache_size);
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if (!(init_io_cache(&info->rec_cache,info->dfile,
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(uint) MY_MIN(info->state->data_file_length+1,
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cache_size),
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READ_CACHE,0L,(pbool) (info->lock_type != F_UNLCK),
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MYF(share->write_flag & MY_WAIT_IF_FULL))))
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{
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info->opt_flag|=READ_CACHE_USED;
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info->update&= ~HA_STATE_ROW_CHANGED;
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}
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if (share->concurrent_insert)
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info->rec_cache.end_of_file=info->state->data_file_length;
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}
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break;
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case HA_EXTRA_REINIT_CACHE:
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if (info->opt_flag & READ_CACHE_USED)
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{
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reinit_io_cache(&info->rec_cache,READ_CACHE,info->nextpos,
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(pbool) (info->lock_type != F_UNLCK),
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(pbool) MY_TEST(info->update & HA_STATE_ROW_CHANGED));
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info->update&= ~HA_STATE_ROW_CHANGED;
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if (share->concurrent_insert)
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info->rec_cache.end_of_file=info->state->data_file_length;
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}
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break;
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case HA_EXTRA_WRITE_CACHE:
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if (info->lock_type == F_UNLCK)
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{
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error=1; /* Not possibly if not locked */
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break;
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}
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cache_size= (extra_arg ? *(ulong*) extra_arg :
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my_default_record_cache_size);
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if (!(info->opt_flag &
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(READ_CACHE_USED | WRITE_CACHE_USED | OPT_NO_ROWS)) &&
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!share->state.header.uniques)
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if (!(init_io_cache(&info->rec_cache,info->dfile, cache_size,
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WRITE_CACHE,info->state->data_file_length,
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(pbool) (info->lock_type != F_UNLCK),
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MYF(share->write_flag & MY_WAIT_IF_FULL))))
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{
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info->opt_flag|=WRITE_CACHE_USED;
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info->update&= ~(HA_STATE_ROW_CHANGED |
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HA_STATE_WRITE_AT_END |
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HA_STATE_EXTEND_BLOCK);
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}
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break;
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case HA_EXTRA_PREPARE_FOR_UPDATE:
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if (info->s->data_file_type != DYNAMIC_RECORD)
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break;
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/* Remove read/write cache if dynamic rows */
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/* fall through */
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case HA_EXTRA_NO_CACHE:
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if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED))
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{
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info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
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error=end_io_cache(&info->rec_cache);
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/* Sergei will insert full text index caching here */
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}
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#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
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if (info->opt_flag & MEMMAP_USED)
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madvise((char*) share->file_map, share->state.state.data_file_length,
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MADV_RANDOM);
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#endif
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break;
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case HA_EXTRA_FLUSH_CACHE:
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if (info->opt_flag & WRITE_CACHE_USED)
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{
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if ((error=flush_io_cache(&info->rec_cache)))
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{
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mi_print_error(info->s, HA_ERR_CRASHED);
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mi_mark_crashed(info); /* Fatal error found */
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}
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}
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break;
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case HA_EXTRA_NO_READCHECK:
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info->opt_flag&= ~READ_CHECK_USED; /* No readcheck */
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break;
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case HA_EXTRA_READCHECK:
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info->opt_flag|= READ_CHECK_USED;
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break;
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case HA_EXTRA_KEYREAD: /* Read only keys to record */
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case HA_EXTRA_REMEMBER_POS:
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info->opt_flag |= REMEMBER_OLD_POS;
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bmove((uchar*) info->lastkey+share->base.max_key_length*2,
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(uchar*) info->lastkey,info->lastkey_length);
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info->save_update= info->update;
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info->save_lastinx= info->lastinx;
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info->save_lastpos= info->lastpos;
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info->save_lastkey_length=info->lastkey_length;
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if (function == HA_EXTRA_REMEMBER_POS)
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break;
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/* fall through */
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case HA_EXTRA_KEYREAD_CHANGE_POS:
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info->opt_flag |= KEY_READ_USED;
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info->read_record=_mi_read_key_record;
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break;
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case HA_EXTRA_NO_KEYREAD:
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case HA_EXTRA_RESTORE_POS:
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if (info->opt_flag & REMEMBER_OLD_POS)
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{
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bmove((uchar*) info->lastkey,
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(uchar*) info->lastkey+share->base.max_key_length*2,
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info->save_lastkey_length);
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info->update= info->save_update | HA_STATE_WRITTEN;
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info->lastinx= info->save_lastinx;
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info->lastpos= info->save_lastpos;
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info->lastkey_length=info->save_lastkey_length;
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}
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info->read_record= share->read_record;
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info->opt_flag&= ~(KEY_READ_USED | REMEMBER_OLD_POS);
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break;
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case HA_EXTRA_NO_USER_CHANGE: /* Database is somehow locked against changes */
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info->lock_type= F_EXTRA_LCK; /* Simulate as locked */
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break;
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case HA_EXTRA_WAIT_LOCK:
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info->lock_wait=0;
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break;
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case HA_EXTRA_NO_WAIT_LOCK:
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info->lock_wait= MY_SHORT_WAIT;
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break;
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case HA_EXTRA_NO_KEYS:
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if (info->lock_type == F_UNLCK)
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{
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error=1; /* Not possibly if not lock */
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break;
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}
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if (mi_is_any_key_active(share->state.key_map))
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{
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MI_KEYDEF *key=share->keyinfo;
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uint i;
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for (i=0 ; i < share->base.keys ; i++,key++)
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{
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if (!(key->flag & HA_NOSAME) && info->s->base.auto_key != i+1)
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{
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mi_clear_key_active(share->state.key_map, i);
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info->update|= HA_STATE_CHANGED;
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}
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}
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if (!share->changed)
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{
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share->state.changed|= STATE_CHANGED | STATE_NOT_ANALYZED;
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share->changed=1; /* Update on close */
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if (!share->global_changed)
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{
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share->global_changed=1;
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share->state.open_count++;
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}
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}
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share->state.state= *info->state;
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error=mi_state_info_write(share->kfile,&share->state,1 | 2);
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}
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break;
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case HA_EXTRA_FORCE_REOPEN:
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mysql_mutex_lock(&THR_LOCK_myisam);
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share->last_version= 0L; /* Impossible version */
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mysql_mutex_unlock(&THR_LOCK_myisam);
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break;
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case HA_EXTRA_PREPARE_FOR_DROP:
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/* Signals about intent to delete this table */
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share->deleting= TRUE;
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share->global_changed= FALSE; /* force writing changed flag */
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_mi_mark_file_changed(info);
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if (share->temporary)
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break;
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/* fall through */
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case HA_EXTRA_PREPARE_FOR_RENAME:
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DBUG_ASSERT(!share->temporary);
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mysql_mutex_lock(&THR_LOCK_myisam);
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share->last_version= 0L; /* Impossible version */
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mysql_mutex_lock(&share->intern_lock);
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/* Flush pages that we don't need anymore */
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if (flush_key_blocks(share->key_cache, share->kfile,
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&share->dirty_part_map,
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(function == HA_EXTRA_PREPARE_FOR_DROP ?
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FLUSH_IGNORE_CHANGED : FLUSH_RELEASE)))
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{
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error=my_errno;
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share->changed=1;
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mi_print_error(info->s, HA_ERR_CRASHED);
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mi_mark_crashed(info); /* Fatal error found */
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}
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mysql_mutex_unlock(&share->intern_lock);
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mysql_mutex_unlock(&THR_LOCK_myisam);
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break;
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case HA_EXTRA_END_ALTER_COPY:
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case HA_EXTRA_FLUSH:
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if (!share->temporary)
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flush_key_blocks(share->key_cache, share->kfile, &share->dirty_part_map,
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FLUSH_KEEP);
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mysql_mutex_lock(&share->intern_lock);
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/* Tell mi_lock_database() that we locked the intern_lock mutex */
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info->intern_lock_locked= 1;
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_mi_decrement_open_count(info);
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info->intern_lock_locked= 0;
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if (share->not_flushed)
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{
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share->not_flushed=0;
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if (mysql_file_sync(share->kfile, MYF(0)))
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error= my_errno;
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if (mysql_file_sync(info->dfile, MYF(0)))
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error= my_errno;
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if (error)
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{
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share->changed=1;
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mi_print_error(info->s, HA_ERR_CRASHED);
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mi_mark_crashed(info); /* Fatal error found */
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}
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}
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if (share->base.blobs)
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mi_alloc_rec_buff(info, -1, &info->rec_buff);
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mysql_mutex_unlock(&share->intern_lock);
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break;
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case HA_EXTRA_NORMAL: /* These aren't in use */
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info->quick_mode=0;
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break;
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case HA_EXTRA_QUICK:
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info->quick_mode=1;
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break;
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case HA_EXTRA_NO_ROWS:
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if (!share->state.header.uniques)
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info->opt_flag|= OPT_NO_ROWS;
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break;
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case HA_EXTRA_PRELOAD_BUFFER_SIZE:
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info->preload_buff_size= *((ulong *) extra_arg);
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break;
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case HA_EXTRA_CHANGE_KEY_TO_UNIQUE:
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case HA_EXTRA_CHANGE_KEY_TO_DUP:
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mi_extra_keyflag(info, function);
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break;
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case HA_EXTRA_MMAP:
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#ifdef HAVE_MMAP
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mysql_mutex_lock(&share->intern_lock);
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/*
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Memory map the data file if it is not already mapped. It is safe
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to memory map a file while other threads are using file I/O on it.
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Assigning a new address to a function pointer is an atomic
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operation. intern_lock prevents that two or more mappings are done
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at the same time.
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*/
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if (!share->file_map)
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{
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if (mi_dynmap_file(info, share->state.state.data_file_length))
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{
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DBUG_PRINT("warning",("mmap failed: errno: %d",errno));
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error= my_errno= errno;
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}
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}
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mysql_mutex_unlock(&share->intern_lock);
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#endif
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break;
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case HA_EXTRA_MARK_AS_LOG_TABLE:
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mysql_mutex_lock(&share->intern_lock);
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share->is_log_table= TRUE;
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mysql_mutex_unlock(&share->intern_lock);
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break;
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case HA_EXTRA_DETACH_CHILD: /* When used with MERGE tables */
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info->open_flag&= ~HA_OPEN_MERGE_TABLE;
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info->lock.priority&= ~THR_LOCK_MERGE_PRIV;
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break;
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case HA_EXTRA_KEY_CACHE:
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case HA_EXTRA_NO_KEY_CACHE:
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default:
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break;
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}
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{
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char tmp[1];
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tmp[0]=function;
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myisam_log_command(MI_LOG_EXTRA,info,(uchar*) tmp,1,error);
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}
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DBUG_RETURN(error);
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} /* mi_extra */
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void mi_set_index_cond_func(MI_INFO *info, index_cond_func_t func,
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void *func_arg)
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{
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info->index_cond_func= func;
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info->index_cond_func_arg= func_arg;
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}
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void mi_set_rowid_filter_func(MI_INFO *info,
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rowid_filter_func_t check_func,
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rowid_filter_is_active_func_t is_active_func,
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void *func_arg)
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{
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info->rowid_filter_func= check_func;
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info->rowid_filter_is_active_func= is_active_func;
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info->rowid_filter_func_arg= func_arg;
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}
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/*
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Start/Stop Inserting Duplicates Into a Table, WL#1648.
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*/
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static void mi_extra_keyflag(MI_INFO *info, enum ha_extra_function function)
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{
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uint idx;
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for (idx= 0; idx< info->s->base.keys; idx++)
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{
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switch (function) {
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case HA_EXTRA_CHANGE_KEY_TO_UNIQUE:
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info->s->keyinfo[idx].flag|= HA_NOSAME;
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break;
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case HA_EXTRA_CHANGE_KEY_TO_DUP:
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info->s->keyinfo[idx].flag&= ~(HA_NOSAME);
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break;
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default:
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break;
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}
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}
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}
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int mi_reset(MI_INFO *info)
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{
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int error= 0;
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MYISAM_SHARE *share=info->s;
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DBUG_ENTER("mi_reset");
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/*
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Free buffers and reset the following flags:
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EXTRA_CACHE, EXTRA_WRITE_CACHE, EXTRA_KEYREAD, EXTRA_QUICK
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If the row buffer cache is large (for dynamic tables), reduce it
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to save memory.
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*/
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if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED))
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{
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info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
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error= end_io_cache(&info->rec_cache);
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}
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if (share->base.blobs)
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mi_alloc_rec_buff(info, -1, &info->rec_buff);
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#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
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if (info->opt_flag & MEMMAP_USED)
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madvise((char*) share->file_map, share->state.state.data_file_length,
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MADV_RANDOM);
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#endif
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info->opt_flag&= ~(KEY_READ_USED | REMEMBER_OLD_POS);
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info->quick_mode=0;
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info->lastinx= 0; /* Use first index as def */
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info->last_search_keypage= info->lastpos= HA_OFFSET_ERROR;
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info->page_changed= 1;
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info->update= ((info->update & HA_STATE_CHANGED) | HA_STATE_NEXT_FOUND |
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HA_STATE_PREV_FOUND);
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DBUG_RETURN(error);
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}
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my_bool mi_killed_standalone(MI_INFO *info __attribute__((unused)))
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{
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return 0;
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}
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