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1
by brian
clean slate |
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/* Copyright (C) 2000-2005 MySQL AB
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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1130.3.28
by Monty Taylor
Moved heapdef.h and myisamdef.h to *_priv.h for easier filtering for include guard check. |
16 |
#include "myisam_priv.h" |
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492.3.27
by Lee
merge latest changes from the trunk and changes to get drizzle building on Soalris 10 (SPARC) |
17 |
#include <drizzled/util/test.h> |
18 |
#include <sys/types.h> |
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1
by brian
clean slate |
19 |
#include <sys/mman.h> |
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612.2.13
by Monty Taylor
Work on removing global.h from headers that should be installed. |
21 |
#include <string.h> |
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1067.4.8
by Nathan Williams
Converted all usages of cmin/cmax in plugin directory to std::min/max. |
22 |
#include <algorithm> |
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612.2.13
by Monty Taylor
Work on removing global.h from headers that should be installed. |
23 |
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916.1.32
by Padraig O'Sullivan
Refactoring MyISAM storage engine again based on LIST replacement with |
24 |
using namespace std; |
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1
by brian
clean slate |
26 |
static void mi_extra_keyflag(MI_INFO *info, enum ha_extra_function function); |
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28 |
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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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304
by Brian Aker
ulong cleanup, remove log code from myisam. |
36 |
extra_arg Pointer to extra argument (normally pointer to uint32_t)
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1
by brian
clean slate |
37 |
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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304
by Brian Aker
ulong cleanup, remove log code from myisam. |
48 |
uint32_t cache_size; |
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1
by brian
clean slate |
49 |
MYISAM_SHARE *share=info->s; |
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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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154
by Brian Aker
Removed oddball types in my_global.h |
60 |
(bool) (info->lock_type != F_UNLCK), |
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(bool) test(info->update & HA_STATE_ROW_CHANGED) |
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1
by brian
clean slate |
62 |
);
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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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68 |
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 (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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304
by Brian Aker
ulong cleanup, remove log code from myisam. |
86 |
cache_size= (extra_arg ? *(uint32_t*) extra_arg : |
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1
by brian
clean slate |
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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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1067.4.8
by Nathan Williams
Converted all usages of cmin/cmax in plugin directory to std::min/max. |
89 |
(uint) min((uint32_t)info->state->data_file_length+1, |
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1
by brian
clean slate |
90 |
cache_size), |
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154
by Brian Aker
Removed oddball types in my_global.h |
91 |
READ_CACHE,0L,(bool) (info->lock_type != F_UNLCK), |
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1
by brian
clean slate |
92 |
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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154
by Brian Aker
Removed oddball types in my_global.h |
105 |
(bool) (info->lock_type != F_UNLCK), |
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(bool) test(info->update & HA_STATE_ROW_CHANGED)); |
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1
by brian
clean slate |
107 |
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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||
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304
by Brian Aker
ulong cleanup, remove log code from myisam. |
119 |
cache_size= (extra_arg ? *(uint32_t*) extra_arg : |
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1
by brian
clean slate |
120 |
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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154
by Brian Aker
Removed oddball types in my_global.h |
126 |
(bool) (info->lock_type != F_UNLCK), |
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1
by brian
clean slate |
127 |
MYF(share->write_flag & MY_WAIT_IF_FULL)))) |
128 |
{
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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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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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492.3.25
by Lee
Changes to get drizzle building on Solaris 10 (SPARC) |
146 |
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE) && !defined(TARGET_OS_SOLARIS)
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1
by brian
clean slate |
147 |
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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629.3.4
by Kristian Nielsen
Take Mats'es changes from bmove()->memcpy(), and fix all of them to be |
171 |
memmove(info->lastkey+share->base.max_key_length*2, |
172 |
info->lastkey,info->lastkey_length); |
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1
by brian
clean slate |
173 |
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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629.3.4
by Kristian Nielsen
Take Mats'es changes from bmove()->memcpy(), and fix all of them to be |
188 |
memmove(info->lastkey, |
189 |
info->lastkey+share->base.max_key_length*2, |
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info->save_lastkey_length); |
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1
by brian
clean slate |
191 |
info->update= info->save_update | HA_STATE_WRITTEN; |
192 |
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 agains 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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205 |
case HA_EXTRA_NO_WAIT_LOCK: |
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info->lock_wait=MY_DONT_WAIT; |
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break; |
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208 |
case HA_EXTRA_NO_KEYS: |
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209 |
if (info->lock_type == F_UNLCK) |
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{
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211 |
error=1; /* Not possibly if not lock */ |
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break; |
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213 |
}
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if (mi_is_any_key_active(share->state.key_map)) |
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215 |
{
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MI_KEYDEF *key=share->keyinfo; |
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482
by Brian Aker
Remove uint. |
217 |
uint32_t i; |
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1
by brian
clean slate |
218 |
for (i=0 ; i < share->base.keys ; i++,key++) |
219 |
{
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if (!(key->flag & HA_NOSAME) && info->s->base.auto_key != i+1) |
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221 |
{
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mi_clear_key_active(share->state.key_map, i); |
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223 |
info->update|= HA_STATE_CHANGED; |
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224 |
}
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225 |
}
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226 |
||
227 |
if (!share->changed) |
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228 |
{
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229 |
share->state.changed|= STATE_CHANGED | STATE_NOT_ANALYZED; |
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230 |
share->changed=1; /* Update on close */ |
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231 |
if (!share->global_changed) |
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232 |
{
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233 |
share->global_changed=1; |
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234 |
share->state.open_count++; |
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235 |
}
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236 |
}
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237 |
share->state.state= *info->state; |
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238 |
error=mi_state_info_write(share->kfile,&share->state,1 | 2); |
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239 |
}
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240 |
break; |
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241 |
case HA_EXTRA_FORCE_REOPEN: |
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242 |
pthread_mutex_lock(&THR_LOCK_myisam); |
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243 |
share->last_version= 0L; /* Impossible version */ |
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244 |
pthread_mutex_unlock(&THR_LOCK_myisam); |
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245 |
break; |
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246 |
case HA_EXTRA_PREPARE_FOR_DROP: |
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247 |
pthread_mutex_lock(&THR_LOCK_myisam); |
|
248 |
share->last_version= 0L; /* Impossible version */ |
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249 |
#ifdef __WIN__REMOVE_OBSOLETE_WORKAROUND
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250 |
/* Close the isam and data files as Win32 can't drop an open table */
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251 |
pthread_mutex_lock(&share->intern_lock); |
|
252 |
if (flush_key_blocks(share->key_cache, share->kfile, |
|
253 |
(function == HA_EXTRA_FORCE_REOPEN ? |
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254 |
FLUSH_RELEASE : FLUSH_IGNORE_CHANGED))) |
|
255 |
{
|
|
256 |
error=my_errno; |
|
257 |
share->changed=1; |
|
258 |
mi_print_error(info->s, HA_ERR_CRASHED); |
|
259 |
mi_mark_crashed(info); /* Fatal error found */ |
|
260 |
}
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261 |
if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED)) |
|
262 |
{
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263 |
info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED); |
|
264 |
error=end_io_cache(&info->rec_cache); |
|
265 |
}
|
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266 |
if (info->lock_type != F_UNLCK && ! info->was_locked) |
|
267 |
{
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268 |
info->was_locked=info->lock_type; |
|
269 |
if (mi_lock_database(info,F_UNLCK)) |
|
270 |
error=my_errno; |
|
271 |
info->lock_type = F_UNLCK; |
|
272 |
}
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273 |
if (share->kfile >= 0) |
|
274 |
_mi_decrement_open_count(info); |
|
275 |
if (share->kfile >= 0 && my_close(share->kfile,MYF(0))) |
|
276 |
error=my_errno; |
|
277 |
{
|
|
|
916.1.32
by Padraig O'Sullivan
Refactoring MyISAM storage engine again based on LIST replacement with |
278 |
list<MI_INFO *>::iterator it= myisam_open_list.begin(); |
279 |
while (it != myisam_open_list.end()) |
|
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1
by brian
clean slate |
280 |
{
|
|
916.1.32
by Padraig O'Sullivan
Refactoring MyISAM storage engine again based on LIST replacement with |
281 |
MI_INFO *tmpinfo= *it; |
|
1
by brian
clean slate |
282 |
if (tmpinfo->s == info->s) |
283 |
{
|
|
284 |
if (tmpinfo->dfile >= 0 && my_close(tmpinfo->dfile,MYF(0))) |
|
|
916.1.31
by Padraig O'Sullivan
Reverting some refactoring changes I made to MyISAM that didn't really work |
285 |
error = my_errno; |
|
1
by brian
clean slate |
286 |
tmpinfo->dfile= -1; |
287 |
}
|
|
|
916.1.32
by Padraig O'Sullivan
Refactoring MyISAM storage engine again based on LIST replacement with |
288 |
++it; |
|
1
by brian
clean slate |
289 |
}
|
290 |
}
|
|
291 |
share->kfile= -1; /* Files aren't open anymore */ |
|
292 |
pthread_mutex_unlock(&share->intern_lock); |
|
293 |
#endif
|
|
294 |
pthread_mutex_unlock(&THR_LOCK_myisam); |
|
295 |
break; |
|
296 |
case HA_EXTRA_FLUSH: |
|
297 |
if (!share->temporary) |
|
298 |
flush_key_blocks(share->key_cache, share->kfile, FLUSH_KEEP); |
|
299 |
#ifdef HAVE_PWRITE
|
|
300 |
_mi_decrement_open_count(info); |
|
301 |
#endif
|
|
302 |
if (share->not_flushed) |
|
303 |
{
|
|
304 |
share->not_flushed=0; |
|
305 |
if (my_sync(share->kfile, MYF(0))) |
|
306 |
error= my_errno; |
|
307 |
if (my_sync(info->dfile, MYF(0))) |
|
308 |
error= my_errno; |
|
309 |
if (error) |
|
310 |
{
|
|
311 |
share->changed=1; |
|
312 |
mi_print_error(info->s, HA_ERR_CRASHED); |
|
313 |
mi_mark_crashed(info); /* Fatal error found */ |
|
314 |
}
|
|
315 |
}
|
|
316 |
if (share->base.blobs) |
|
317 |
mi_alloc_rec_buff(info, -1, &info->rec_buff); |
|
318 |
break; |
|
319 |
case HA_EXTRA_NORMAL: /* Theese isn't in use */ |
|
320 |
info->quick_mode=0; |
|
321 |
break; |
|
322 |
case HA_EXTRA_QUICK: |
|
323 |
info->quick_mode=1; |
|
324 |
break; |
|
325 |
case HA_EXTRA_NO_ROWS: |
|
326 |
if (!share->state.header.uniques) |
|
327 |
info->opt_flag|= OPT_NO_ROWS; |
|
328 |
break; |
|
329 |
case HA_EXTRA_PRELOAD_BUFFER_SIZE: |
|
|
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
330 |
info->preload_buff_size= *((uint32_t *) extra_arg); |
|
1
by brian
clean slate |
331 |
break; |
332 |
case HA_EXTRA_CHANGE_KEY_TO_UNIQUE: |
|
333 |
case HA_EXTRA_CHANGE_KEY_TO_DUP: |
|
334 |
mi_extra_keyflag(info, function); |
|
335 |
break; |
|
336 |
case HA_EXTRA_KEY_CACHE: |
|
337 |
case HA_EXTRA_NO_KEY_CACHE: |
|
338 |
default: |
|
339 |
break; |
|
340 |
}
|
|
|
304
by Brian Aker
ulong cleanup, remove log code from myisam. |
341 |
|
|
51.1.99
by Jay Pipes
Removed/replaced DBUG symbols and TRUE/FALSE |
342 |
return(error); |
|
1
by brian
clean slate |
343 |
} /* mi_extra */ |
344 |
||
345 |
||
346 |
/*
|
|
347 |
Start/Stop Inserting Duplicates Into a Table, WL#1648.
|
|
348 |
*/
|
|
349 |
static void mi_extra_keyflag(MI_INFO *info, enum ha_extra_function function) |
|
350 |
{
|
|
|
482
by Brian Aker
Remove uint. |
351 |
uint32_t idx; |
|
1
by brian
clean slate |
352 |
|
353 |
for (idx= 0; idx< info->s->base.keys; idx++) |
|
354 |
{
|
|
355 |
switch (function) { |
|
356 |
case HA_EXTRA_CHANGE_KEY_TO_UNIQUE: |
|
357 |
info->s->keyinfo[idx].flag|= HA_NOSAME; |
|
358 |
break; |
|
359 |
case HA_EXTRA_CHANGE_KEY_TO_DUP: |
|
360 |
info->s->keyinfo[idx].flag&= ~(HA_NOSAME); |
|
361 |
break; |
|
362 |
default: |
|
363 |
break; |
|
364 |
}
|
|
365 |
}
|
|
366 |
}
|
|
367 |
||
368 |
||
369 |
int mi_reset(MI_INFO *info) |
|
370 |
{
|
|
371 |
int error= 0; |
|
372 |
MYISAM_SHARE *share=info->s; |
|
373 |
/*
|
|
374 |
Free buffers and reset the following flags:
|
|
375 |
EXTRA_CACHE, EXTRA_WRITE_CACHE, EXTRA_KEYREAD, EXTRA_QUICK
|
|
376 |
||
377 |
If the row buffer cache is large (for dynamic tables), reduce it
|
|
378 |
to save memory.
|
|
379 |
*/
|
|
380 |
if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED)) |
|
381 |
{
|
|
382 |
info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED); |
|
383 |
error= end_io_cache(&info->rec_cache); |
|
384 |
}
|
|
385 |
if (share->base.blobs) |
|
386 |
mi_alloc_rec_buff(info, -1, &info->rec_buff); |
|
|
492.3.25
by Lee
Changes to get drizzle building on Solaris 10 (SPARC) |
387 |
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE) && !defined(TARGET_OS_SOLARIS)
|
|
1
by brian
clean slate |
388 |
if (info->opt_flag & MEMMAP_USED) |
389 |
madvise((char*) share->file_map, share->state.state.data_file_length, |
|
390 |
MADV_RANDOM); |
|
391 |
#endif
|
|
392 |
info->opt_flag&= ~(KEY_READ_USED | REMEMBER_OLD_POS); |
|
393 |
info->quick_mode=0; |
|
394 |
info->lastinx= 0; /* Use first index as def */ |
|
395 |
info->last_search_keypage= info->lastpos= HA_OFFSET_ERROR; |
|
396 |
info->page_changed= 1; |
|
397 |
info->update= ((info->update & HA_STATE_CHANGED) | HA_STATE_NEXT_FOUND | |
|
398 |
HA_STATE_PREV_FOUND); |
|
|
51.1.99
by Jay Pipes
Removed/replaced DBUG symbols and TRUE/FALSE |
399 |
return(error); |
|
1
by brian
clean slate |
400 |
}
|