mirror of
https://github.com/MariaDB/server.git
synced 2025-01-23 23:34:34 +01:00
00c16e8a30
------------------------------------------------------------------------
r5971 | marko | 2009-09-23 23:03:51 +1000 (Wed, 23 Sep 2009) | 2 lines
branches/zip: os_file_pwrite(): Make the code compile in InnoDB Hot Backup
when the pwrite system call is not available.
------------------------------------------------------------------------
r5972 | marko | 2009-09-24 05:44:52 +1000 (Thu, 24 Sep 2009) | 5 lines
branches/zip: fil_node_open_file(): In InnoDB Hot Backup,
determine the page size of single-file tablespaces before computing
the file node size. Otherwise, the space->size of compressed tablespaces
would be computed with UNIV_PAGE_SIZE instead of key_block_size.
This should fix Issue #313.
------------------------------------------------------------------------
r5973 | marko | 2009-09-24 05:53:21 +1000 (Thu, 24 Sep 2009) | 2 lines
branches/zip: recv_add_to_hash_table():
Simplify obfuscated pointer arithmetics.
------------------------------------------------------------------------
r5978 | marko | 2009-09-24 17:47:56 +1000 (Thu, 24 Sep 2009) | 1 line
branches/zip: Fix warnings and errors when UNIV_HOTBACKUP is defined.
------------------------------------------------------------------------
r5979 | marko | 2009-09-24 20:16:10 +1000 (Thu, 24 Sep 2009) | 4 lines
branches/zip: ha_innodb.cc: Define MYSQL_PLUGIN_IMPORT when necessary.
This preprocessor symbol has been recently introduced in MySQL 5.1.
The InnoDB Plugin should remain source compatible with MySQL 5.1.24
and later.
------------------------------------------------------------------------
r5988 | calvin | 2009-09-26 05:14:43 +1000 (Sat, 26 Sep 2009) | 8 lines
branches/zip: fix bug#47055 unconditional exit(1) on ERROR_WORKING_SET_QUOTA
1453 (0x5AD) for InnoDB backend
When error ERROR_WORKING_SET_QUOTA or ERROR_NO_SYSTEM_RESOURCES
occurs, yields for 100ms and retries the operation.
Approved by: Heikki (on IM)
------------------------------------------------------------------------
r5992 | vasil | 2009-09-28 17:10:29 +1000 (Mon, 28 Sep 2009) | 4 lines
branches/zip:
Add ChangeLog entry for c5988.
------------------------------------------------------------------------
r5994 | marko | 2009-09-28 18:33:59 +1000 (Mon, 28 Sep 2009) | 17 lines
branches/zip: Try to prevent the reuse of tablespace identifiers after
InnoDB has crashed during table creation. Also, refuse to start if
files with duplicate tablespace identifiers are encountered.
fil_node_create(): Update fil_system->max_assigned_id. This should
prevent the reuse of a space->id when InnoDB does a full crash
recovery and invokes fil_load_single_table_tablespaces(). Normally,
fil_system->max_assigned_id is initialized from
SELECT MAX(ID) FROM SYS_TABLES.
fil_open_single_table_tablespace(): Return FALSE when
fil_space_create() fails.
fil_load_single_table_tablespace(): Exit if fil_space_create() fails
and innodb_force_recovery=0.
rb://173 approved by Heikki Tuuri. This addresses Issue #335.
------------------------------------------------------------------------
r5995 | marko | 2009-09-28 18:52:25 +1000 (Mon, 28 Sep 2009) | 17 lines
branches/zip: Do not write to PAGE_INDEX_ID after page creation,
not even when restoring an uncompressed page after a compression failure.
btr_page_reorganize_low(): On compression failure, do not restore
those page header fields that should not be affected by the
reorganization. Instead, compare the fields.
page_zip_decompress(): Add the parameter ibool all, for copying all
page header fields. Pass the parameter all=TRUE on block read
completion, redo log application, and page_zip_validate(); pass
all=FALSE in all other cases.
page_zip_reorganize(): Do not restore the uncompressed page on
failure. It will be restored (to pre-modification state) by the
caller anyway.
rb://167, Issue #346
------------------------------------------------------------------------
r5996 | marko | 2009-09-28 22:46:02 +1000 (Mon, 28 Sep 2009) | 4 lines
branches/zip: Address Issue #350 in comments.
lock_rec_queue_validate(), lock_rec_queue_validate(): Note that
this debug code may violate the latching order and cause deadlocks.
------------------------------------------------------------------------
r5997 | marko | 2009-09-28 23:03:58 +1000 (Mon, 28 Sep 2009) | 12 lines
branches/zip: Remove an assertion failure when the InnoDB data dictionary
is inconsistent with the MySQL .frm file.
ha_innobase::index_read(): When the index cannot be found,
return an error.
ha_innobase::change_active_index(): When prebuilt->index == NULL,
set also prebuilt->index_usable = FALSE. This is not needed for
correctness, because prebuilt->index_usable is only checked by
row_search_for_mysql(), which requires prebuilt->index != NULL.
This addresses Issue #349. Approved by Heikki Tuuri over IM.
------------------------------------------------------------------------
r6005 | vasil | 2009-09-29 18:09:52 +1000 (Tue, 29 Sep 2009) | 4 lines
branches/zip:
ChangeLog: wrap around 78th column, not earlier.
------------------------------------------------------------------------
r6006 | vasil | 2009-09-29 20:15:25 +1000 (Tue, 29 Sep 2009) | 4 lines
branches/zip:
Add ChangeLog entry for the release of 1.0.4.
------------------------------------------------------------------------
r6007 | vasil | 2009-09-29 23:19:59 +1000 (Tue, 29 Sep 2009) | 6 lines
branches/zip:
Fix the year, should be 2009.
Pointed by: Calvin
------------------------------------------------------------------------
r6026 | marko | 2009-09-30 17:18:24 +1000 (Wed, 30 Sep 2009) | 1 line
branches/zip: Add some debug assertions for checking FSEG_MAGIC_N.
------------------------------------------------------------------------
r6028 | marko | 2009-09-30 23:55:23 +1000 (Wed, 30 Sep 2009) | 3 lines
branches/zip: recv_no_log_write: New debug flag for tracking down
Mantis Issue #347. No modifications should be made to the database
while recv_apply_hashed_log_recs() is about to complete.
------------------------------------------------------------------------
r6029 | calvin | 2009-10-01 06:32:02 +1000 (Thu, 01 Oct 2009) | 4 lines
branches/zip: non-functional changes
Fix typo.
------------------------------------------------------------------------
r6031 | marko | 2009-10-01 21:24:33 +1000 (Thu, 01 Oct 2009) | 49 lines
branches/zip: Clean up after a crash during DROP INDEX.
When InnoDB crashes while dropping an index, ensure that
the index will be completely dropped during crash recovery.
row_merge_drop_index(): Before dropping an index, rename the index to
start with TEMP_INDEX_PREFIX_STR and commit the change, so that
row_merge_drop_temp_indexes() will drop the index after crash
recovery if the server crashes while dropping the index.
fseg_inode_try_get(): New function, forked from fseg_inode_get().
Return NULL if the file segment index node is free.
fseg_inode_get(): Assert that the file segment index node is not free.
fseg_free_step(): If the file segment index node is already free,
print a diagnostic message and return TRUE.
fsp_free_seg_inode(): Write a nonzero number to FSEG_MAGIC_N, so that
allocated-and-freed file segment index nodes can be better
distinguished from uninitialized ones.
This is rb://174, addressing Issue #348.
Tested by restarting mysqld upon the completion of the added
log_write_up_to() invocation below, during DROP INDEX. The index was
dropped after crash recovery, and re-issuing the DROP INDEX did not
crash the server.
Index: btr/btr0btr.c
===================================================================
--- btr/btr0btr.c (revision 6026)
+++ btr/btr0btr.c (working copy)
@@ -42,6 +42,7 @@ Created 6/2/1994 Heikki Tuuri
#include "ibuf0ibuf.h"
#include "trx0trx.h"
+#include "log0log.h"
/*
Latching strategy of the InnoDB B-tree
--------------------------------------
@@ -873,6 +874,8 @@ leaf_loop:
goto leaf_loop;
}
+
+ log_write_up_to(mtr.end_lsn, LOG_WAIT_ALL_GROUPS, TRUE);
top_loop:
mtr_start(&mtr);
------------------------------------------------------------------------
r6033 | calvin | 2009-10-02 06:19:46 +1000 (Fri, 02 Oct 2009) | 4 lines
branches/zip: fix a typo in error message
Reported as bug#47763.
------------------------------------------------------------------------
r6043 | inaam | 2009-10-06 01:45:35 +1100 (Tue, 06 Oct 2009) | 12 lines
branches/zip rb://176
Do not invalidate buffer pool while an LRU batch is active. Added
code to buf_pool_invalidate() to wait for the running batches to finish.
This patch also resets the state of buf_pool struct at invalidation. This
addresses the concern where buf_pool->freed_page_clock becomes non-zero
because we read in a system tablespace page for file format info at
startup.
Approved by: Marko
------------------------------------------------------------------------
r6044 | pekka | 2009-10-07 01:44:54 +1100 (Wed, 07 Oct 2009) | 5 lines
branches/zip:
Add os_file_is_same() function for Hot Backup (inside ifdef UNIV_HOTBACKUP).
This is part of the fix for Issue #186.
Note! The Windows implementation is incomplete.
------------------------------------------------------------------------
r6046 | pekka | 2009-10-08 20:24:56 +1100 (Thu, 08 Oct 2009) | 3 lines
branches/zip: Revert r6044 which added os_file_is_same() function
(issue#186). This functionality is moved to Hot Backup source tree.
------------------------------------------------------------------------
r6048 | vasil | 2009-10-09 16:42:55 +1100 (Fri, 09 Oct 2009) | 16 lines
branches/zip:
When scanning a directory readdir() is called and stat() after it,
if a file is deleted between the two calls stat will fail and the
whole precedure will fail. Change this behavior to continue with the
next entry if stat() fails because of nonexistent file. This is
transparent change as it will make it look as if the file was deleted
before the readdir() call.
This change is needed in order to fix
https://svn.innodb.com/mantis/view.php?id=174
in which we need to abort if os_file_readdir_next_file()
encounters "real" errors.
Approved by: Marko, Pekka (rb://177)
------------------------------------------------------------------------
r6049 | vasil | 2009-10-10 03:05:26 +1100 (Sat, 10 Oct 2009) | 7 lines
branches/zip:
Fix compilation warning in Hot Backup:
innodb/fil/fil0fil.c: In function 'fil_load_single_table_tablespace':
innodb/fil/fil0fil.c:3253: warning: format '%lld' expects type 'long long int', but argument 6 has type 'ib_int64_t'
------------------------------------------------------------------------
r6064 | calvin | 2009-10-14 02:23:35 +1100 (Wed, 14 Oct 2009) | 4 lines
branches/zip: non-functional changes
Changes from MySQL to fix build issue.
------------------------------------------------------------------------
r6065 | inaam | 2009-10-14 04:43:13 +1100 (Wed, 14 Oct 2009) | 7 lines
branches/zip rb://182
Call fsync() on datafiles after a batch of pages is written to disk
even when skip_innodb_doublewrite is set.
Approved by: Heikki
------------------------------------------------------------------------
r6080 | sunny | 2009-10-15 09:29:01 +1100 (Thu, 15 Oct 2009) | 3 lines
branches/zip: Change page_mem_alloc_free() to inline.
Fix Bug #47058 - Failure to compile innodb_plugin on solaris 10u7 + spro cc/CC 5.10
------------------------------------------------------------------------
r6084 | vasil | 2009-10-15 16:21:17 +1100 (Thu, 15 Oct 2009) | 4 lines
branches/zip:
Add ChangeLog entry for r6080.
------------------------------------------------------------------------
r6095 | vasil | 2009-10-20 00:04:59 +1100 (Tue, 20 Oct 2009) | 7 lines
branches/zip:
Fix Bug#47808 innodb_information_schema.test fails when run under valgrind
by using the wait_until_rows_count macro that loops until the number of
rows becomes 14 instead of sleep 0.1, which is obviously very fragile.
------------------------------------------------------------------------
r6096 | vasil | 2009-10-20 00:06:09 +1100 (Tue, 20 Oct 2009) | 4 lines
branches/zip:
Add ChangeLog entry for r6095.
------------------------------------------------------------------------
r6099 | jyang | 2009-10-22 13:58:39 +1100 (Thu, 22 Oct 2009) | 7 lines
branches/zip: Port bug #46000 related changes from 5.1 to zip
branch. Due to different code path for creating index in zip
branch comparing to 5.1), the index reserved name check function
is extended to be used in ha_innobase::add_index().
rb://190 Approved by: Marko
------------------------------------------------------------------------
r6100 | jyang | 2009-10-22 14:51:07 +1100 (Thu, 22 Oct 2009) | 6 lines
branches/zip: As a request from mysql, WARN_LEVEL_ERROR cannot
be used for push_warning_* call any more. Switch to
WARN_LEVEL_WARN. Bug #47233.
rb://172 approved by Sunny Bains and Marko.
------------------------------------------------------------------------
r6101 | jyang | 2009-10-23 19:45:50 +1100 (Fri, 23 Oct 2009) | 7 lines
branches/zip: Update test result with the WARN_LEVEL_ERROR
to WARN_LEVEL_WARN change. This is the same result as
submitted in rb://172 review, which approved by Sunny Bains
and Marko.
------------------------------------------------------------------------
r6102 | marko | 2009-10-26 18:32:23 +1100 (Mon, 26 Oct 2009) | 1 line
branches/zip: row_prebuilt_struct::prebuilts: Unused field, remove.
------------------------------------------------------------------------
r6103 | marko | 2009-10-27 00:46:18 +1100 (Tue, 27 Oct 2009) | 4 lines
branches/zip: row_ins_alloc_sys_fields(): Zero out the system columns
DB_TRX_ID, DB_ROLL_PTR and DB_ROW_ID, in order to avoid harmless
Valgrind warnings about uninitialized data. (The warnings were
harmless, because the fields would be initialized at a later stage.)
------------------------------------------------------------------------
r6105 | calvin | 2009-10-28 09:05:52 +1100 (Wed, 28 Oct 2009) | 6 lines
branches/zip: backport r3848 from 6.0 branch
----
branches/6.0: innobase_start_or_create_for_mysql(): Make the 10 MB
minimum tablespace limit independent of UNIV_PAGE_SIZE. (Bug #41490)
------------------------------------------------------------------------
r6107 | marko | 2009-10-29 01:10:34 +1100 (Thu, 29 Oct 2009) | 5 lines
branches/zip: buf_page_set_old(): Improve UNIV_LRU_DEBUG diagnostics
in order to catch the buf_pool->LRU_old corruption reported in Issue #381.
buf_LRU_old_init(): Set the property from the tail towards the front
of the buf_pool->LRU list, in order not to trip the debug check.
------------------------------------------------------------------------
r6108 | calvin | 2009-10-29 16:58:04 +1100 (Thu, 29 Oct 2009) | 5 lines
branches/zip: close file handle when building with UNIV_HOTBACKUP
The change does not affect regular InnoDB engine. Confirmed by
Marko.
------------------------------------------------------------------------
r6109 | jyang | 2009-10-29 19:37:32 +1100 (Thu, 29 Oct 2009) | 7 lines
branches/zip: In os_mem_alloc_large(), if we fail to attach
the shared memory, reset memory pointer ptr to NULL, and
allocate memory from conventional pool.
Bug #48237 Error handling in os_mem_alloc_large appears to be incorrect
rb://198 Approved by: Marko
------------------------------------------------------------------------
r6110 | marko | 2009-10-29 21:44:57 +1100 (Thu, 29 Oct 2009) | 2 lines
branches/zip: Makefile.am (INCLUDES): Merge a change from MySQL:
Use $(srcdir)/include instead of $(top_srcdir)/storage/innobase/include.
------------------------------------------------------------------------
r6111 | marko | 2009-10-29 22:04:11 +1100 (Thu, 29 Oct 2009) | 33 lines
branches/zip: Fix corruption of buf_pool->LRU_old and improve debug assertions.
This was reported as Issue #381.
buf_page_set_old(): Assert that blocks may only be set old if
buf_pool->LRU_old is initialized and buf_pool->LRU_old_len is nonzero.
Assert that buf_pool->LRU_old points to the block at the old/new boundary.
buf_LRU_old_adjust_len(): Invoke buf_page_set_old() after adjusting
buf_pool->LRU_old and buf_pool->LRU_old_len, in order not to violate
the added assertions.
buf_LRU_old_init(): Replace buf_page_set_old() with a direct
assignment to bpage->old, because these loops that initialize all the
blocks would temporarily violate the assertions about
buf_pool->LRU_old.
buf_LRU_remove_block(): When setting buf_pool->LRU_old = NULL, also
clear all bpage->old flags and set buf_pool->LRU_old_len = 0.
buf_LRU_add_block_to_end_low(), buf_LRU_add_block_low(): Move the
buf_page_set_old() call later in order not to violate the debug
assertions. If buf_pool->LRU_old is NULL, set old=FALSE.
buf_LRU_free_block(): Replace the UNIV_LRU_DEBUG assertion with a
dummy buf_page_set_old() call that performs more thorough checks.
buf_LRU_validate(): Do not tolerate garbage in buf_pool->LRU_old_len
even if buf_pool->LRU_old is NULL. Check that bpage->old is monotonic.
buf_relocate(): Make the UNIV_LRU_DEBUG checks stricter.
buf0buf.h: Revise the documentation of buf_page_t::old and
buf_pool_t::LRU_old_len.
------------------------------------------------------------------------
r6112 | calvin | 2009-10-30 01:21:15 +1100 (Fri, 30 Oct 2009) | 4 lines
branches/zip: consideration for icc compilers
Proposed by MySQL, and approved by Marko.
------------------------------------------------------------------------
r6113 | vasil | 2009-10-30 03:15:50 +1100 (Fri, 30 Oct 2009) | 93 lines
branches/zip: Merge r5912:6112 from branches/5.1:
(after this merge the innodb-autoinc test starts to fail, but
I commit anyway because it would be easier to investigate the
failure this way)
------------------------------------------------------------------------
r5952 | calvin | 2009-09-22 19:45:07 +0300 (Tue, 22 Sep 2009) | 7 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
branches/5.1: fix bug#42383: Can't create table 'test.bug39438'
For embedded server, MySQL may pass in full path, which is
currently disallowed. It is needed to relax the condition by
accepting full paths in the embedded case.
Approved by: Heikki (on IM)
------------------------------------------------------------------------
r6032 | vasil | 2009-10-01 15:55:49 +0300 (Thu, 01 Oct 2009) | 8 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
branches/5.1:
Fix Bug#38996 Race condition in ANALYZE TABLE
by serializing ANALYZE TABLE inside InnoDB.
Approved by: Heikki (rb://175)
------------------------------------------------------------------------
r6045 | jyang | 2009-10-08 02:27:08 +0300 (Thu, 08 Oct 2009) | 7 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
A /branches/5.1/mysql-test/innodb_bug47777.result
A /branches/5.1/mysql-test/innodb_bug47777.test
branches/5.1: Fix bug #47777. Treat the Geometry data same as
Binary BLOB in ha_innobase::store_key_val_for_row(), since the
Geometry data is stored as Binary BLOB in Innodb.
Review: rb://180 approved by Marko Makela.
------------------------------------------------------------------------
r6051 | sunny | 2009-10-12 07:05:00 +0300 (Mon, 12 Oct 2009) | 6 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
M /branches/5.1/mysql-test/innodb-autoinc.result
M /branches/5.1/mysql-test/innodb-autoinc.test
branches/5.1: Ignore negative values supplied by the user when calculating the
next value to store in dict_table_t. Setting autoincrement columns top negative
values is undefined behavior and this change should bring the behavior of
InnoDB closer to what users expect. Added several tests to check.
rb://162
------------------------------------------------------------------------
r6052 | sunny | 2009-10-12 07:09:56 +0300 (Mon, 12 Oct 2009) | 4 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
M /branches/5.1/mysql-test/innodb-autoinc.result
M /branches/5.1/mysql-test/innodb-autoinc.test
branches/5.1: Reset the statement level autoinc counter on ROLLBACK. Fix
the test results too.
rb://164
------------------------------------------------------------------------
r6053 | sunny | 2009-10-12 07:37:49 +0300 (Mon, 12 Oct 2009) | 6 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
M /branches/5.1/mysql-test/innodb-autoinc.result
M /branches/5.1/mysql-test/innodb-autoinc.test
branches/5.1: Copy the maximum AUTOINC value from the old table to the new
table when MySQL does a CREATE INDEX ON T. This is required because MySQL
does a table copy, rename and drops the old table.
Fix Bug#47125: auto_increment start value is ignored if an index is created and engine=innodb
rb://168
------------------------------------------------------------------------
r6076 | vasil | 2009-10-14 19:30:12 +0300 (Wed, 14 Oct 2009) | 4 lines
Changed paths:
M /branches/5.1/row/row0mysql.c
branches/5.1:
Fix typo.
------------------------------------------------------------------------
------------------------------------------------------------------------
r6114 | vasil | 2009-10-30 03:43:51 +1100 (Fri, 30 Oct 2009) | 6 lines
branches/zip:
* Add ChangeLog entries for latest changes
* Obey alphabetical order in the list of the files
* White-space fixup
------------------------------------------------------------------------
r6121 | sunny | 2009-10-30 10:42:11 +1100 (Fri, 30 Oct 2009) | 7 lines
branches/zip: This test has been problematic for sometime now. The underlying
bug is that the data dictionaries get out of sync. In the AUTOINC code we
try and apply salve to the symptoms. In the past MySQL made some unrelated
change and the dictionaries stopped getting out of sync and this test started
to fail. Now, it seems they have reverted that changed and the test is
passing again. I suspect this is not he last time that this test will change.
------------------------------------------------------------------------
r6124 | jyang | 2009-10-30 19:02:31 +1100 (Fri, 30 Oct 2009) | 5 lines
branches/zip: Correct the bug number for -r6109 change
from # 48273 to #48237
------------------------------------------------------------------------
r6126 | vasil | 2009-10-30 19:36:07 +1100 (Fri, 30 Oct 2009) | 45 lines
branches/zip: Merge r6112:6125 from branches/5.1:
(skipping r6122 and r6123, Jimmy says these are already present and need
not be merged):
------------------------------------------------------------------------
r6122 | jyang | 2009-10-30 05:18:38 +0200 (Fri, 30 Oct 2009) | 7 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
M /branches/5.1/mysql-test/innodb_bug44369.result
M /branches/5.1/mysql-test/innodb_bug44369.test
M /branches/5.1/mysql-test/innodb_bug46000.result
M /branches/5.1/mysql-test/innodb_bug46000.test
branches/5.1: Chnage WARN_LEVEL_ERROR to WARN_LEVEL_WARN
for push_warning_printf() call in innodb.
Fix Bug#47233: Innodb calls push_warning(MYSQL_ERROR::WARN_LEVEL_ERROR)
rb://170 approved by Marko.
------------------------------------------------------------------------
r6123 | jyang | 2009-10-30 05:43:06 +0200 (Fri, 30 Oct 2009) | 8 lines
Changed paths:
M /branches/5.1/os/os0proc.c
branches/5.1: In os_mem_alloc_large(), if we fail to attach
the shared memory, reset memory pointer ptr to NULL, and
allocate memory from conventional pool. This is a port
from branches/zip.
Bug #48237 Error handling in os_mem_alloc_large appears to be incorrect
rb://198 Approved by: Marko
------------------------------------------------------------------------
r6125 | vasil | 2009-10-30 10:31:23 +0200 (Fri, 30 Oct 2009) | 4 lines
Changed paths:
M /branches/5.1/handler/ha_innodb.cc
branches/5.1:
White-space fixup.
------------------------------------------------------------------------
------------------------------------------------------------------------
r6130 | marko | 2009-11-02 20:42:56 +1100 (Mon, 02 Nov 2009) | 9 lines
branches/zip: Free all resources at shutdown. Set pointers to NULL, so
that Valgrind will not complain about freed data structures that are
reachable via pointers. This addresses Bug #45992 and Bug #46656.
This patch is mostly based on changes copied from branches/embedded-1.0,
mainly c5432, c3439, c3134, c2994, c2978, but also some other code was
copied. Some added cleanup code is specific to MySQL/InnoDB.
rb://199 approved by Sunny Bains
------------------------------------------------------------------------
823 lines
30 KiB
C
823 lines
30 KiB
C
/*****************************************************************************
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Copyright (c) 1996, 2009, Innobase Oy. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/lock0lock.h
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The transaction lock system
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Created 5/7/1996 Heikki Tuuri
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*******************************************************/
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#ifndef lock0lock_h
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#define lock0lock_h
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#include "univ.i"
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#include "buf0types.h"
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#include "trx0types.h"
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#include "mtr0types.h"
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#include "rem0types.h"
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#include "dict0types.h"
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#include "que0types.h"
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#include "lock0types.h"
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#include "read0types.h"
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#include "hash0hash.h"
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#include "ut0vec.h"
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#ifdef UNIV_DEBUG
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extern ibool lock_print_waits;
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#endif /* UNIV_DEBUG */
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/* Buffer for storing information about the most recent deadlock error */
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extern FILE* lock_latest_err_file;
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/*********************************************************************//**
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Gets the size of a lock struct.
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@return size in bytes */
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UNIV_INTERN
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ulint
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lock_get_size(void);
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/*===============*/
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/*********************************************************************//**
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Creates the lock system at database start. */
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UNIV_INTERN
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void
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lock_sys_create(
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/*============*/
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ulint n_cells); /*!< in: number of slots in lock hash table */
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/*********************************************************************//**
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Closes the lock system at database shutdown. */
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UNIV_INTERN
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void
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lock_sys_close(void);
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/*================*/
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/*********************************************************************//**
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Checks if some transaction has an implicit x-lock on a record in a clustered
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index.
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@return transaction which has the x-lock, or NULL */
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UNIV_INLINE
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trx_t*
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lock_clust_rec_some_has_impl(
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/*=========================*/
|
|
const rec_t* rec, /*!< in: user record */
|
|
dict_index_t* index, /*!< in: clustered index */
|
|
const ulint* offsets);/*!< in: rec_get_offsets(rec, index) */
|
|
/*********************************************************************//**
|
|
Gets the heap_no of the smallest user record on a page.
|
|
@return heap_no of smallest user record, or PAGE_HEAP_NO_SUPREMUM */
|
|
UNIV_INLINE
|
|
ulint
|
|
lock_get_min_heap_no(
|
|
/*=================*/
|
|
const buf_block_t* block); /*!< in: buffer block */
|
|
/*************************************************************//**
|
|
Updates the lock table when we have reorganized a page. NOTE: we copy
|
|
also the locks set on the infimum of the page; the infimum may carry
|
|
locks if an update of a record is occurring on the page, and its locks
|
|
were temporarily stored on the infimum. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_move_reorganize_page(
|
|
/*======================*/
|
|
const buf_block_t* block, /*!< in: old index page, now
|
|
reorganized */
|
|
const buf_block_t* oblock);/*!< in: copy of the old, not
|
|
reorganized page */
|
|
/*************************************************************//**
|
|
Moves the explicit locks on user records to another page if a record
|
|
list end is moved to another page. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_move_rec_list_end(
|
|
/*===================*/
|
|
const buf_block_t* new_block, /*!< in: index page to move to */
|
|
const buf_block_t* block, /*!< in: index page */
|
|
const rec_t* rec); /*!< in: record on page: this
|
|
is the first record moved */
|
|
/*************************************************************//**
|
|
Moves the explicit locks on user records to another page if a record
|
|
list start is moved to another page. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_move_rec_list_start(
|
|
/*=====================*/
|
|
const buf_block_t* new_block, /*!< in: index page to move to */
|
|
const buf_block_t* block, /*!< in: index page */
|
|
const rec_t* rec, /*!< in: record on page:
|
|
this is the first
|
|
record NOT copied */
|
|
const rec_t* old_end); /*!< in: old
|
|
previous-to-last
|
|
record on new_page
|
|
before the records
|
|
were copied */
|
|
/*************************************************************//**
|
|
Updates the lock table when a page is split to the right. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_split_right(
|
|
/*====================*/
|
|
const buf_block_t* right_block, /*!< in: right page */
|
|
const buf_block_t* left_block); /*!< in: left page */
|
|
/*************************************************************//**
|
|
Updates the lock table when a page is merged to the right. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_merge_right(
|
|
/*====================*/
|
|
const buf_block_t* right_block, /*!< in: right page to
|
|
which merged */
|
|
const rec_t* orig_succ, /*!< in: original
|
|
successor of infimum
|
|
on the right page
|
|
before merge */
|
|
const buf_block_t* left_block); /*!< in: merged index
|
|
page which will be
|
|
discarded */
|
|
/*************************************************************//**
|
|
Updates the lock table when the root page is copied to another in
|
|
btr_root_raise_and_insert. Note that we leave lock structs on the
|
|
root page, even though they do not make sense on other than leaf
|
|
pages: the reason is that in a pessimistic update the infimum record
|
|
of the root page will act as a dummy carrier of the locks of the record
|
|
to be updated. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_root_raise(
|
|
/*===================*/
|
|
const buf_block_t* block, /*!< in: index page to which copied */
|
|
const buf_block_t* root); /*!< in: root page */
|
|
/*************************************************************//**
|
|
Updates the lock table when a page is copied to another and the original page
|
|
is removed from the chain of leaf pages, except if page is the root! */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_copy_and_discard(
|
|
/*=========================*/
|
|
const buf_block_t* new_block, /*!< in: index page to
|
|
which copied */
|
|
const buf_block_t* block); /*!< in: index page;
|
|
NOT the root! */
|
|
/*************************************************************//**
|
|
Updates the lock table when a page is split to the left. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_split_left(
|
|
/*===================*/
|
|
const buf_block_t* right_block, /*!< in: right page */
|
|
const buf_block_t* left_block); /*!< in: left page */
|
|
/*************************************************************//**
|
|
Updates the lock table when a page is merged to the left. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_merge_left(
|
|
/*===================*/
|
|
const buf_block_t* left_block, /*!< in: left page to
|
|
which merged */
|
|
const rec_t* orig_pred, /*!< in: original predecessor
|
|
of supremum on the left page
|
|
before merge */
|
|
const buf_block_t* right_block); /*!< in: merged index page
|
|
which will be discarded */
|
|
/*************************************************************//**
|
|
Resets the original locks on heir and replaces them with gap type locks
|
|
inherited from rec. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_rec_reset_and_inherit_gap_locks(
|
|
/*=================================*/
|
|
const buf_block_t* heir_block, /*!< in: block containing the
|
|
record which inherits */
|
|
const buf_block_t* block, /*!< in: block containing the
|
|
record from which inherited;
|
|
does NOT reset the locks on
|
|
this record */
|
|
ulint heir_heap_no, /*!< in: heap_no of the
|
|
inheriting record */
|
|
ulint heap_no); /*!< in: heap_no of the
|
|
donating record */
|
|
/*************************************************************//**
|
|
Updates the lock table when a page is discarded. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_discard(
|
|
/*================*/
|
|
const buf_block_t* heir_block, /*!< in: index page
|
|
which will inherit the locks */
|
|
ulint heir_heap_no, /*!< in: heap_no of the record
|
|
which will inherit the locks */
|
|
const buf_block_t* block); /*!< in: index page
|
|
which will be discarded */
|
|
/*************************************************************//**
|
|
Updates the lock table when a new user record is inserted. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_insert(
|
|
/*===============*/
|
|
const buf_block_t* block, /*!< in: buffer block containing rec */
|
|
const rec_t* rec); /*!< in: the inserted record */
|
|
/*************************************************************//**
|
|
Updates the lock table when a record is removed. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_update_delete(
|
|
/*===============*/
|
|
const buf_block_t* block, /*!< in: buffer block containing rec */
|
|
const rec_t* rec); /*!< in: the record to be removed */
|
|
/*********************************************************************//**
|
|
Stores on the page infimum record the explicit locks of another record.
|
|
This function is used to store the lock state of a record when it is
|
|
updated and the size of the record changes in the update. The record
|
|
is in such an update moved, perhaps to another page. The infimum record
|
|
acts as a dummy carrier record, taking care of lock releases while the
|
|
actual record is being moved. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_rec_store_on_page_infimum(
|
|
/*===========================*/
|
|
const buf_block_t* block, /*!< in: buffer block containing rec */
|
|
const rec_t* rec); /*!< in: record whose lock state
|
|
is stored on the infimum
|
|
record of the same page; lock
|
|
bits are reset on the
|
|
record */
|
|
/*********************************************************************//**
|
|
Restores the state of explicit lock requests on a single record, where the
|
|
state was stored on the infimum of the page. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_rec_restore_from_page_infimum(
|
|
/*===============================*/
|
|
const buf_block_t* block, /*!< in: buffer block containing rec */
|
|
const rec_t* rec, /*!< in: record whose lock state
|
|
is restored */
|
|
const buf_block_t* donator);/*!< in: page (rec is not
|
|
necessarily on this page)
|
|
whose infimum stored the lock
|
|
state; lock bits are reset on
|
|
the infimum */
|
|
/*********************************************************************//**
|
|
Returns TRUE if there are explicit record locks on a page.
|
|
@return TRUE if there are explicit record locks on the page */
|
|
UNIV_INTERN
|
|
ibool
|
|
lock_rec_expl_exist_on_page(
|
|
/*========================*/
|
|
ulint space, /*!< in: space id */
|
|
ulint page_no);/*!< in: page number */
|
|
/*********************************************************************//**
|
|
Checks if locks of other transactions prevent an immediate insert of
|
|
a record. If they do, first tests if the query thread should anyway
|
|
be suspended for some reason; if not, then puts the transaction and
|
|
the query thread to the lock wait state and inserts a waiting request
|
|
for a gap x-lock to the lock queue.
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_rec_insert_check_and_lock(
|
|
/*===========================*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG bit is
|
|
set, does nothing */
|
|
const rec_t* rec, /*!< in: record after which to insert */
|
|
buf_block_t* block, /*!< in/out: buffer block of rec */
|
|
dict_index_t* index, /*!< in: index */
|
|
que_thr_t* thr, /*!< in: query thread */
|
|
mtr_t* mtr, /*!< in/out: mini-transaction */
|
|
ibool* inherit);/*!< out: set to TRUE if the new
|
|
inserted record maybe should inherit
|
|
LOCK_GAP type locks from the successor
|
|
record */
|
|
/*********************************************************************//**
|
|
Checks if locks of other transactions prevent an immediate modify (update,
|
|
delete mark, or delete unmark) of a clustered index record. If they do,
|
|
first tests if the query thread should anyway be suspended for some
|
|
reason; if not, then puts the transaction and the query thread to the
|
|
lock wait state and inserts a waiting request for a record x-lock to the
|
|
lock queue.
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_clust_rec_modify_check_and_lock(
|
|
/*=================================*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG
|
|
bit is set, does nothing */
|
|
const buf_block_t* block, /*!< in: buffer block of rec */
|
|
const rec_t* rec, /*!< in: record which should be
|
|
modified */
|
|
dict_index_t* index, /*!< in: clustered index */
|
|
const ulint* offsets,/*!< in: rec_get_offsets(rec, index) */
|
|
que_thr_t* thr); /*!< in: query thread */
|
|
/*********************************************************************//**
|
|
Checks if locks of other transactions prevent an immediate modify
|
|
(delete mark or delete unmark) of a secondary index record.
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_sec_rec_modify_check_and_lock(
|
|
/*===============================*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG
|
|
bit is set, does nothing */
|
|
buf_block_t* block, /*!< in/out: buffer block of rec */
|
|
const rec_t* rec, /*!< in: record which should be
|
|
modified; NOTE: as this is a secondary
|
|
index, we always have to modify the
|
|
clustered index record first: see the
|
|
comment below */
|
|
dict_index_t* index, /*!< in: secondary index */
|
|
que_thr_t* thr, /*!< in: query thread */
|
|
mtr_t* mtr); /*!< in/out: mini-transaction */
|
|
/*********************************************************************//**
|
|
Like the counterpart for a clustered index below, but now we read a
|
|
secondary index record.
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_sec_rec_read_check_and_lock(
|
|
/*=============================*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG
|
|
bit is set, does nothing */
|
|
const buf_block_t* block, /*!< in: buffer block of rec */
|
|
const rec_t* rec, /*!< in: user record or page
|
|
supremum record which should
|
|
be read or passed over by a
|
|
read cursor */
|
|
dict_index_t* index, /*!< in: secondary index */
|
|
const ulint* offsets,/*!< in: rec_get_offsets(rec, index) */
|
|
enum lock_mode mode, /*!< in: mode of the lock which
|
|
the read cursor should set on
|
|
records: LOCK_S or LOCK_X; the
|
|
latter is possible in
|
|
SELECT FOR UPDATE */
|
|
ulint gap_mode,/*!< in: LOCK_ORDINARY, LOCK_GAP, or
|
|
LOCK_REC_NOT_GAP */
|
|
que_thr_t* thr); /*!< in: query thread */
|
|
/*********************************************************************//**
|
|
Checks if locks of other transactions prevent an immediate read, or passing
|
|
over by a read cursor, of a clustered index record. If they do, first tests
|
|
if the query thread should anyway be suspended for some reason; if not, then
|
|
puts the transaction and the query thread to the lock wait state and inserts a
|
|
waiting request for a record lock to the lock queue. Sets the requested mode
|
|
lock on the record.
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_clust_rec_read_check_and_lock(
|
|
/*===============================*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG
|
|
bit is set, does nothing */
|
|
const buf_block_t* block, /*!< in: buffer block of rec */
|
|
const rec_t* rec, /*!< in: user record or page
|
|
supremum record which should
|
|
be read or passed over by a
|
|
read cursor */
|
|
dict_index_t* index, /*!< in: clustered index */
|
|
const ulint* offsets,/*!< in: rec_get_offsets(rec, index) */
|
|
enum lock_mode mode, /*!< in: mode of the lock which
|
|
the read cursor should set on
|
|
records: LOCK_S or LOCK_X; the
|
|
latter is possible in
|
|
SELECT FOR UPDATE */
|
|
ulint gap_mode,/*!< in: LOCK_ORDINARY, LOCK_GAP, or
|
|
LOCK_REC_NOT_GAP */
|
|
que_thr_t* thr); /*!< in: query thread */
|
|
/*********************************************************************//**
|
|
Checks if locks of other transactions prevent an immediate read, or passing
|
|
over by a read cursor, of a clustered index record. If they do, first tests
|
|
if the query thread should anyway be suspended for some reason; if not, then
|
|
puts the transaction and the query thread to the lock wait state and inserts a
|
|
waiting request for a record lock to the lock queue. Sets the requested mode
|
|
lock on the record. This is an alternative version of
|
|
lock_clust_rec_read_check_and_lock() that does not require the parameter
|
|
"offsets".
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_clust_rec_read_check_and_lock_alt(
|
|
/*===================================*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG
|
|
bit is set, does nothing */
|
|
const buf_block_t* block, /*!< in: buffer block of rec */
|
|
const rec_t* rec, /*!< in: user record or page
|
|
supremum record which should
|
|
be read or passed over by a
|
|
read cursor */
|
|
dict_index_t* index, /*!< in: clustered index */
|
|
enum lock_mode mode, /*!< in: mode of the lock which
|
|
the read cursor should set on
|
|
records: LOCK_S or LOCK_X; the
|
|
latter is possible in
|
|
SELECT FOR UPDATE */
|
|
ulint gap_mode,/*!< in: LOCK_ORDINARY, LOCK_GAP, or
|
|
LOCK_REC_NOT_GAP */
|
|
que_thr_t* thr); /*!< in: query thread */
|
|
/*********************************************************************//**
|
|
Checks that a record is seen in a consistent read.
|
|
@return TRUE if sees, or FALSE if an earlier version of the record
|
|
should be retrieved */
|
|
UNIV_INTERN
|
|
ibool
|
|
lock_clust_rec_cons_read_sees(
|
|
/*==========================*/
|
|
const rec_t* rec, /*!< in: user record which should be read or
|
|
passed over by a read cursor */
|
|
dict_index_t* index, /*!< in: clustered index */
|
|
const ulint* offsets,/*!< in: rec_get_offsets(rec, index) */
|
|
read_view_t* view); /*!< in: consistent read view */
|
|
/*********************************************************************//**
|
|
Checks that a non-clustered index record is seen in a consistent read.
|
|
|
|
NOTE that a non-clustered index page contains so little information on
|
|
its modifications that also in the case FALSE, the present version of
|
|
rec may be the right, but we must check this from the clustered index
|
|
record.
|
|
|
|
@return TRUE if certainly sees, or FALSE if an earlier version of the
|
|
clustered index record might be needed */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_sec_rec_cons_read_sees(
|
|
/*========================*/
|
|
const rec_t* rec, /*!< in: user record which
|
|
should be read or passed over
|
|
by a read cursor */
|
|
const read_view_t* view); /*!< in: consistent read view */
|
|
/*********************************************************************//**
|
|
Locks the specified database table in the mode given. If the lock cannot
|
|
be granted immediately, the query thread is put to wait.
|
|
@return DB_SUCCESS, DB_LOCK_WAIT, DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_table(
|
|
/*=======*/
|
|
ulint flags, /*!< in: if BTR_NO_LOCKING_FLAG bit is set,
|
|
does nothing */
|
|
dict_table_t* table, /*!< in: database table in dictionary cache */
|
|
enum lock_mode mode, /*!< in: lock mode */
|
|
que_thr_t* thr); /*!< in: query thread */
|
|
/*************************************************************//**
|
|
Removes a granted record lock of a transaction from the queue and grants
|
|
locks to other transactions waiting in the queue if they now are entitled
|
|
to a lock. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_rec_unlock(
|
|
/*============*/
|
|
trx_t* trx, /*!< in: transaction that has
|
|
set a record lock */
|
|
const buf_block_t* block, /*!< in: buffer block containing rec */
|
|
const rec_t* rec, /*!< in: record */
|
|
enum lock_mode lock_mode);/*!< in: LOCK_S or LOCK_X */
|
|
/*********************************************************************//**
|
|
Releases transaction locks, and releases possible other transactions waiting
|
|
because of these locks. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_release_off_kernel(
|
|
/*====================*/
|
|
trx_t* trx); /*!< in: transaction */
|
|
/*********************************************************************//**
|
|
Cancels a waiting lock request and releases possible other transactions
|
|
waiting behind it. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_cancel_waiting_and_release(
|
|
/*============================*/
|
|
lock_t* lock); /*!< in: waiting lock request */
|
|
|
|
/*********************************************************************//**
|
|
Removes locks on a table to be dropped or truncated.
|
|
If remove_also_table_sx_locks is TRUE then table-level S and X locks are
|
|
also removed in addition to other table-level and record-level locks.
|
|
No lock, that is going to be removed, is allowed to be a wait lock. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_remove_all_on_table(
|
|
/*=====================*/
|
|
dict_table_t* table, /*!< in: table to be dropped
|
|
or truncated */
|
|
ibool remove_also_table_sx_locks);/*!< in: also removes
|
|
table S and X locks */
|
|
|
|
/*********************************************************************//**
|
|
Calculates the fold value of a page file address: used in inserting or
|
|
searching for a lock in the hash table.
|
|
@return folded value */
|
|
UNIV_INLINE
|
|
ulint
|
|
lock_rec_fold(
|
|
/*==========*/
|
|
ulint space, /*!< in: space */
|
|
ulint page_no)/*!< in: page number */
|
|
__attribute__((const));
|
|
/*********************************************************************//**
|
|
Calculates the hash value of a page file address: used in inserting or
|
|
searching for a lock in the hash table.
|
|
@return hashed value */
|
|
UNIV_INLINE
|
|
ulint
|
|
lock_rec_hash(
|
|
/*==========*/
|
|
ulint space, /*!< in: space */
|
|
ulint page_no);/*!< in: page number */
|
|
|
|
/**********************************************************************//**
|
|
Looks for a set bit in a record lock bitmap. Returns ULINT_UNDEFINED,
|
|
if none found.
|
|
@return bit index == heap number of the record, or ULINT_UNDEFINED if
|
|
none found */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_rec_find_set_bit(
|
|
/*==================*/
|
|
const lock_t* lock); /*!< in: record lock with at least one
|
|
bit set */
|
|
|
|
/*********************************************************************//**
|
|
Gets the source table of an ALTER TABLE transaction. The table must be
|
|
covered by an IX or IS table lock.
|
|
@return the source table of transaction, if it is covered by an IX or
|
|
IS table lock; dest if there is no source table, and NULL if the
|
|
transaction is locking more than two tables or an inconsistency is
|
|
found */
|
|
UNIV_INTERN
|
|
dict_table_t*
|
|
lock_get_src_table(
|
|
/*===============*/
|
|
trx_t* trx, /*!< in: transaction */
|
|
dict_table_t* dest, /*!< in: destination of ALTER TABLE */
|
|
enum lock_mode* mode); /*!< out: lock mode of the source table */
|
|
/*********************************************************************//**
|
|
Determine if the given table is exclusively "owned" by the given
|
|
transaction, i.e., transaction holds LOCK_IX and possibly LOCK_AUTO_INC
|
|
on the table.
|
|
@return TRUE if table is only locked by trx, with LOCK_IX, and
|
|
possibly LOCK_AUTO_INC */
|
|
UNIV_INTERN
|
|
ibool
|
|
lock_is_table_exclusive(
|
|
/*====================*/
|
|
dict_table_t* table, /*!< in: table */
|
|
trx_t* trx); /*!< in: transaction */
|
|
/*********************************************************************//**
|
|
Checks if a lock request lock1 has to wait for request lock2.
|
|
@return TRUE if lock1 has to wait for lock2 to be removed */
|
|
UNIV_INTERN
|
|
ibool
|
|
lock_has_to_wait(
|
|
/*=============*/
|
|
const lock_t* lock1, /*!< in: waiting lock */
|
|
const lock_t* lock2); /*!< in: another lock; NOTE that it is
|
|
assumed that this has a lock bit set
|
|
on the same record as in lock1 if the
|
|
locks are record locks */
|
|
/*********************************************************************//**
|
|
Checks that a transaction id is sensible, i.e., not in the future.
|
|
@return TRUE if ok */
|
|
UNIV_INTERN
|
|
ibool
|
|
lock_check_trx_id_sanity(
|
|
/*=====================*/
|
|
trx_id_t trx_id, /*!< in: trx id */
|
|
const rec_t* rec, /*!< in: user record */
|
|
dict_index_t* index, /*!< in: clustered index */
|
|
const ulint* offsets, /*!< in: rec_get_offsets(rec, index) */
|
|
ibool has_kernel_mutex);/*!< in: TRUE if the caller owns the
|
|
kernel mutex */
|
|
/*********************************************************************//**
|
|
Prints info of a table lock. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_table_print(
|
|
/*=============*/
|
|
FILE* file, /*!< in: file where to print */
|
|
const lock_t* lock); /*!< in: table type lock */
|
|
/*********************************************************************//**
|
|
Prints info of a record lock. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_rec_print(
|
|
/*===========*/
|
|
FILE* file, /*!< in: file where to print */
|
|
const lock_t* lock); /*!< in: record type lock */
|
|
/*********************************************************************//**
|
|
Prints info of locks for all transactions. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_print_info_summary(
|
|
/*====================*/
|
|
FILE* file); /*!< in: file where to print */
|
|
/*********************************************************************//**
|
|
Prints info of locks for each transaction. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_print_info_all_transactions(
|
|
/*=============================*/
|
|
FILE* file); /*!< in: file where to print */
|
|
/*********************************************************************//**
|
|
Return approximate number or record locks (bits set in the bitmap) for
|
|
this transaction. Since delete-marked records may be removed, the
|
|
record count will not be precise. */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_number_of_rows_locked(
|
|
/*=======================*/
|
|
trx_t* trx); /*!< in: transaction */
|
|
/*******************************************************************//**
|
|
Check if a transaction holds any autoinc locks.
|
|
@return TRUE if the transaction holds any AUTOINC locks. */
|
|
UNIV_INTERN
|
|
ibool
|
|
lock_trx_holds_autoinc_locks(
|
|
/*=========================*/
|
|
const trx_t* trx); /*!< in: transaction */
|
|
/*******************************************************************//**
|
|
Release all the transaction's autoinc locks. */
|
|
UNIV_INTERN
|
|
void
|
|
lock_release_autoinc_locks(
|
|
/*=======================*/
|
|
trx_t* trx); /*!< in/out: transaction */
|
|
|
|
/*******************************************************************//**
|
|
Gets the type of a lock. Non-inline version for using outside of the
|
|
lock module.
|
|
@return LOCK_TABLE or LOCK_REC */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_get_type(
|
|
/*==========*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
Gets the id of the transaction owning a lock.
|
|
@return transaction id */
|
|
UNIV_INTERN
|
|
ullint
|
|
lock_get_trx_id(
|
|
/*============*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
Gets the mode of a lock in a human readable string.
|
|
The string should not be free()'d or modified.
|
|
@return lock mode */
|
|
UNIV_INTERN
|
|
const char*
|
|
lock_get_mode_str(
|
|
/*==============*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
Gets the type of a lock in a human readable string.
|
|
The string should not be free()'d or modified.
|
|
@return lock type */
|
|
UNIV_INTERN
|
|
const char*
|
|
lock_get_type_str(
|
|
/*==============*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
Gets the id of the table on which the lock is.
|
|
@return id of the table */
|
|
UNIV_INTERN
|
|
ullint
|
|
lock_get_table_id(
|
|
/*==============*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
Gets the name of the table on which the lock is.
|
|
The string should not be free()'d or modified.
|
|
@return name of the table */
|
|
UNIV_INTERN
|
|
const char*
|
|
lock_get_table_name(
|
|
/*================*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
For a record lock, gets the index on which the lock is.
|
|
@return index */
|
|
UNIV_INTERN
|
|
const dict_index_t*
|
|
lock_rec_get_index(
|
|
/*===============*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
For a record lock, gets the name of the index on which the lock is.
|
|
The string should not be free()'d or modified.
|
|
@return name of the index */
|
|
UNIV_INTERN
|
|
const char*
|
|
lock_rec_get_index_name(
|
|
/*====================*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
For a record lock, gets the tablespace number on which the lock is.
|
|
@return tablespace number */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_rec_get_space_id(
|
|
/*==================*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/*******************************************************************//**
|
|
For a record lock, gets the page number on which the lock is.
|
|
@return page number */
|
|
UNIV_INTERN
|
|
ulint
|
|
lock_rec_get_page_no(
|
|
/*=================*/
|
|
const lock_t* lock); /*!< in: lock */
|
|
|
|
/** Lock modes and types */
|
|
/* @{ */
|
|
#define LOCK_MODE_MASK 0xFUL /*!< mask used to extract mode from the
|
|
type_mode field in a lock */
|
|
/** Lock types */
|
|
/* @{ */
|
|
#define LOCK_TABLE 16 /*!< table lock */
|
|
#define LOCK_REC 32 /*!< record lock */
|
|
#define LOCK_TYPE_MASK 0xF0UL /*!< mask used to extract lock type from the
|
|
type_mode field in a lock */
|
|
#if LOCK_MODE_MASK & LOCK_TYPE_MASK
|
|
# error "LOCK_MODE_MASK & LOCK_TYPE_MASK"
|
|
#endif
|
|
|
|
#define LOCK_WAIT 256 /*!< Waiting lock flag; when set, it
|
|
means that the lock has not yet been
|
|
granted, it is just waiting for its
|
|
turn in the wait queue */
|
|
/* Precise modes */
|
|
#define LOCK_ORDINARY 0 /*!< this flag denotes an ordinary
|
|
next-key lock in contrast to LOCK_GAP
|
|
or LOCK_REC_NOT_GAP */
|
|
#define LOCK_GAP 512 /*!< when this bit is set, it means that the
|
|
lock holds only on the gap before the record;
|
|
for instance, an x-lock on the gap does not
|
|
give permission to modify the record on which
|
|
the bit is set; locks of this type are created
|
|
when records are removed from the index chain
|
|
of records */
|
|
#define LOCK_REC_NOT_GAP 1024 /*!< this bit means that the lock is only on
|
|
the index record and does NOT block inserts
|
|
to the gap before the index record; this is
|
|
used in the case when we retrieve a record
|
|
with a unique key, and is also used in
|
|
locking plain SELECTs (not part of UPDATE
|
|
or DELETE) when the user has set the READ
|
|
COMMITTED isolation level */
|
|
#define LOCK_INSERT_INTENTION 2048 /*!< this bit is set when we place a waiting
|
|
gap type record lock request in order to let
|
|
an insert of an index record to wait until
|
|
there are no conflicting locks by other
|
|
transactions on the gap; note that this flag
|
|
remains set when the waiting lock is granted,
|
|
or if the lock is inherited to a neighboring
|
|
record */
|
|
#if (LOCK_WAIT|LOCK_GAP|LOCK_REC_NOT_GAP|LOCK_INSERT_INTENTION)&LOCK_MODE_MASK
|
|
# error
|
|
#endif
|
|
#if (LOCK_WAIT|LOCK_GAP|LOCK_REC_NOT_GAP|LOCK_INSERT_INTENTION)&LOCK_TYPE_MASK
|
|
# error
|
|
#endif
|
|
/* @} */
|
|
|
|
/** Lock operation struct */
|
|
typedef struct lock_op_struct lock_op_t;
|
|
/** Lock operation struct */
|
|
struct lock_op_struct{
|
|
dict_table_t* table; /*!< table to be locked */
|
|
enum lock_mode mode; /*!< lock mode */
|
|
};
|
|
|
|
/** The lock system struct */
|
|
struct lock_sys_struct{
|
|
hash_table_t* rec_hash; /*!< hash table of the record locks */
|
|
};
|
|
|
|
/** The lock system */
|
|
extern lock_sys_t* lock_sys;
|
|
|
|
|
|
#ifndef UNIV_NONINL
|
|
#include "lock0lock.ic"
|
|
#endif
|
|
|
|
#endif
|