rw_lock_create_func(): Initialize lock->writer_thread, so that Valgrind
will not complain even when Valgrind instrumentation is not enabled.
Flag lock->writer_thread uninitialized, so that Valgrind can complain
when it is used uninitialized.
rw_lock_set_writer_id_and_recursion_flag(): Revert the bogus Valgrind
instrumentation that was pushed in the first attempt to fix this bug.
by silencing a bogus Valgrind warning:
==4392== Conditional jump or move depends on uninitialised value(s)
==4392== at 0x5A18416: rw_lock_set_writer_id_and_recursion_flag (sync0rw.ic:283)
==4392== by 0x5A1865C: rw_lock_x_lock_low (sync0rw.c:558)
==4392== by 0x5A18481: rw_lock_x_lock_func (sync0rw.c:617)
==4392== by 0x597EEE6: mtr_x_lock_func (mtr0mtr.ic:271)
==4392== by 0x597EBBD: fsp_header_init (fsp0fsp.c:970)
==4392== by 0x5A15E78: innobase_start_or_create_for_mysql (srv0start.c:1508)
==4392== by 0x598B789: innobase_init(void*) (ha_innodb.cc:2282)
os_compare_and_swap_thread_id() is defined as
__sync_bool_compare_and_swap(). From the GCC doc:
`bool __sync_bool_compare_and_swap (TYPE *ptr, TYPE oldval TYPE newval, ...)'
...
The "bool" version returns true if the comparison is successful and
NEWVAL was written.
So it is not possible that the return value is uninitialized, no matter what
the arguments to os_compare_and_swap_thread_id() are. Probably Valgrind gets
confused by the implementation of the GCC internal function
__sync_bool_compare_and_swap().
This option is known to be broken when tablespaces contain off-page
columns after crash recovery. It has only been tested when creating
the data files from the scratch.
btr_blob_dbg_t: A map from page_no:heap_no:field_no to first_blob_page_no.
This map is instantiated for every clustered index in index->blobs.
It is protected by index->blobs_mutex.
btr_blob_dbg_msg_issue(): Issue a diagnostic message.
Invoked when btr_blob_dbg_msg is set.
btr_blob_dbg_rbt_insert(): Insert a btr_blob_dbg_t into index->blobs.
btr_blob_dbg_rbt_delete(): Remove a btr_blob_dbg_t from index->blobs.
btr_blob_dbg_cmp(): Comparator for btr_blob_dbg_t.
btr_blob_dbg_add_blob(): Add a BLOB reference to the map.
btr_blob_dbg_add_rec(): Add all BLOB references from a record to the map.
btr_blob_dbg_print(): Display the map of BLOB references in an index.
btr_blob_dbg_remove_rec(): Remove all BLOB references of a record from
the map.
btr_blob_dbg_is_empty(): Check that no BLOB references exist to or
from a page. Disowned references from delete-marked records are
tolerated.
btr_blob_dbg_op(): Perform an operation on all BLOB references on a
B-tree page.
btr_blob_dbg_add(): Add all BLOB references from a B-tree page to the
map.
btr_blob_dbg_remove(): Remove all BLOB references from a B-tree page
from the map.
btr_blob_dbg_restore(): Restore the BLOB references after a failed
page reorganize.
btr_blob_dbg_set_deleted_flag(): Modify the 'deleted' flag in the BLOB
references of a record.
btr_blob_dbg_owner(): Own or disown a BLOB reference.
btr_page_create(), btr_page_free_low(): Assert that no BLOB references exist.
btr_create(): Create index->blobs for clustered indexes.
btr_page_reorganize_low(): Invoke btr_blob_dbg_remove() before copying
the records. Invoke btr_blob_dbg_restore() if the operation fails.
btr_page_empty(), btr_lift_page_up(), btr_compress(), btr_discard_page():
Invoke btr_blob_dbg_remove().
btr_cur_del_mark_set_clust_rec(): Invoke btr_blob_dbg_set_deleted_flag().
Other cases of modifying the delete mark are either in the secondary
index or during crash recovery, which we do not promise to support.
btr_cur_set_ownership_of_extern_field(): Invoke btr_blob_dbg_owner().
btr_store_big_rec_extern_fields(): Invoke btr_blob_dbg_add_blob().
btr_free_externally_stored_field(): Invoke btr_blob_dbg_assert_empty()
on the first BLOB page.
page_cur_insert_rec_low(), page_cur_insert_rec_zip(),
page_copy_rec_list_end_to_created_page(): Invoke btr_blob_dbg_add_rec().
page_cur_insert_rec_zip_reorg(), page_copy_rec_list_end(),
page_copy_rec_list_start(): After failure, invoke
btr_blob_dbg_remove() and btr_blob_dbg_add().
page_cur_delete_rec(): Invoke btr_blob_dbg_remove_rec().
page_delete_rec_list_end(): Invoke btr_blob_dbg_op(btr_blob_dbg_remove_rec).
page_zip_reorganize(): Invoke btr_blob_dbg_remove() before copying the records.
page_zip_copy_recs(): Invoke btr_blob_dbg_add().
row_upd_rec_in_place(): Invoke btr_blob_dbg_rbt_delete() and
btr_blob_dbg_rbt_insert().
innobase_start_or_create_for_mysql(): Warn when UNIV_BLOB_DEBUG is enabled.
rb://550 approved by Jimmy Yang
btr_rec_get_field_ref_offs(), btr_rec_get_field_ref(): New functions.
Get the pointer to an externally stored field.
btr_cur_set_ownership_of_extern_field(): Assert that the BLOB has not
already been disowned.
btr_store_big_rec_extern_fields(): Rename to
btr_store_big_rec_extern_fields_func() and add the debug parameter
update_in_place. All pointers to externally stored columns in the
record must either be zero or they must be pointers to inherited
columns, owned by this record or an earlier record version. For any
BLOB that is stored, the BLOB pointer must previously have been
zero. When the function completes, all BLOB pointers must be nonzero
and owned by the record.
rb://549 approved by Jimmy Yang
row_purge(): Change the return type to void. (The return value always
was DB_SUCCESS.) Remove some local variables.
row_undo_mod_remove_clust_low(): Remove some local variables.
rb://547 approved by Jimmy Yang
Antelope files in btr_check_blob_fil_page_type(). Unfortunately, we
must keep the check in production builds, because InnoDB wrote
uninitialized garbage to FIL_PAGE_TYPE until fairly recently (5.1.x).
rb://546 approved by Jimmy Yang
It was the enabling of UNIV_DEBUG_FILE_ACCESSES that caught Bug #55284
in the first place. This is a very light piece of of debug code, and
there really is no reason why it is not enabled in all debug builds.
rb://551 approved by Jimmy Yang
trx rollback or purge
This patch does not relax the failing debug assertion during purge.
That will be revisited once we have managed to repeat the assertion failure.
row_upd_changes_ord_field_binary_func(): Renamed from
row_upd_changes_ord_field_binary(). Add the parameter que_thr_t* in
UNIV_DEBUG builds. When the off-page column cannot be retrieved,
assert that the current transaction is a recovered one and that it is
the one that is currently being rolled back.
row_upd_changes_ord_field_binary(): A wrapper macro for
row_upd_changes_ord_field_binary_func() that discards the que_thr_t*
parameter unless UNIV_DEBUG is defined.
row_purge_upd_exist_or_extern_func(): Renamed from
row_purge_upd_exist_or_extern(). Add the parameter que_thr_t* in
UNIV_DEBUG builds.
row_purge_upd_exist_or_extern(): A wrapper macro for
row_purge_upd_exist_or_extern_func() that discards the que_thr_t*
parameter unless UNIV_DEBUG is defined.
Make trx_roll_crash_recv_trx const. If there were a 'do not
dereference' attribute, it would be appropriate as well.
rb://588 approved by Jimmy Yang
trx_get_trx_by_xid(): Invalidate trx->xid after a successful lookup,
so that subsequent callers will not find the same transaction.
The only callers of trx_get_trx_by_xid() will be invoking
innobase_commit_low() or innobase_rollback_trx(), and those code paths
should not depend on trx->xid.
rb://584 approved by Jimmy Yang
due to potentially uninitialized variable
row_upd_changes_ord_field_binary(): Initialize dfield_len to suppress the
warning. The compiler cannot know that row_ext_lookup() does initialize
dfield_len for us, as it is defined in a different module.
buf_block_alloc(): ulint zip_size is always 0.
buf_LRU_get_free_block(): ulint zip_size is always 0.
buf_LRU_free_block(): ibool* buf_pool_mutex_released is always NULL.
Remove these parameters.
buf_LRU_get_free_block(): Simplify the initialization of block->page.zip
and release buf_pool_mutex() earlier.
rw_lock_debug_print(): Add parameter FILE* for specifying the output stream.
rw_lock_list_print_info(): Invoke rw_lock_debug_print() on file, not stderr.
"rows examined" estimates". This change implements "innodb_stats_method"
with options of "nulls_equal", "nulls_unequal" and "null_ignored".
rb://553 approved by Marko
Do not use nested AC_CHECK_FUNC() because they result in:
./configure: line 52688: syntax error: unexpected end of file
(which happens only on some platforms and does not happen on others,
I have no idea what is the reason for this)
AC_CHECK_FUNCS(f1 f2 f3, ACTION_IF_PRESENT)
ACTION_IF_PRESENT is executed if any of f1, f2 or f3 is present.
Fix this misusage, we want the action to be executed if all of the
functions are present.
This bug fix requires that Bug #58912 be fixed as well (bzr revision id
marko.makela@oracle.com-20101221093919-mcmmgd4zpse9567d). Otherwise,
another double BLOB free could occur when InnoDB would try to perform
an update-in-place as delete-and-insert-by-update-in-place.
row_upd_clust_rec_by_insert(): Do not disown the externally stored
columns from the old record (btr_cur_mark_extern_inherited_fields())
until after checking the foreign key constraints and successfully
inserting the updated record. If a lock wait timeout occurs between
the delete-marking of the old record and the insertion of the updated
record, mark the columns inherited before retrying the insert.
Distinguish the state UPD_NODE_INSERT_BLOB from
UPD_NODE_INSERT_CLUSTERED.
btr_cur_del_mark_set_clust_rec(): Replace the cursor with
block,rec,index,offsets so that the offsets need not be recalculated.
Assert that rec is on a clustered index leaf page.
btr_cur_disown_inherited_fields(): Renamed from
btr_cur_mark_extern_inherited_fields(). Use
upd_get_field_by_field_no(). Assert that there are externally stored
columns. Assert that a mini-transaction is passed. Remove the return
status. (The only caller, row_upd_clust_rec_by_insert(), will have
determined that some fields have changed ownership.)
btr_cur_mark_dtuple_inherited_extern(): Rename to
row_upd_clust_rec_by_insert_inherit_func() and declare as static. Add
the debug parameters rec, offsets. When rec is given, assert that the
off-page columns match those in the inesrt tuple and that the off-page
columns are owned by the record. Assert that the non-updated off-page
columns in the insert tuple are owned, and mark them inherited.
row_upd_clust_rec_by_insert_inherit(): A wrapper macro for
row_upd_clust_rec_by_insert_inherit_func().
row_undo_mod_upd_exist_sec(): Adjust a comment about
row_upd_clust_rec_by_insert().
rb:508 approved by Jimmy Yang
row_upd_changes_ord_field_binary(): Do not return TRUE if the update
vector changes a column that is covered by a prefix index, but does
not change the column prefix. Add the row_ext_t parameter for
determining whether the prefixes of externally stored columns match.
dfield_datas_are_binary_equal(): Add the parameter len, for comparing
column prefixes when len > 0.
innodb.test: Add a test case where the patch of Bug #55284 failed
without this fix.
rb:537 approved by Jimmy Yang
Code cleanup after changes for Bug 56628. The general approach for
InnoDB is to make a reference to each enum value whenever it is used in a
switch statement. In addition, no default case should be used for switch
statements on enum types. This assures that if there is ever any change
in the enum values, the switch will need to change to reflect it since a
compiler warning will occur. In this case, the enum row_type is declared
in handler.h and could be changed for another storage engine. If so, a
warning will occur in the InnoDB build.
Other changes;
* This patch uses 2 macros to help consolidate warning messages that
need to occur twice in the single switch for row_format.
* Using row_format as the variable name to distinguish it from the enum
type.
* Function declaration format correction.
InnoDB AUTOINC code expects the locks to be released in strict reverse order
at the end of the statement. However, nested stored proedures and partition
tables break this rule. We now allow the locks to be deleted from the
trx->autoinc_locks vector in any order but optimise for the common (old) case.
rb://441 Approved by Marko Makela
Add a _commented_ workaround for Bug#47350. The full solution is tricky
to get right as explained in the bug report. It is not worth the effort
to extend the deprecated autotools framework to support conflicting
plugins and would be too risky for MySQL 5.1 (GA).
OPTIMIZE TABLE recreates the whole table. That is why the counter gets reset.
Making the next autoinc column persistent is a separate issue from resetting
the value after an OPTIMIZE TABLE. We already have a check for ALTER TABLE
and CREATE INDEX to preserve the value on table recreate. We should be able to
add an additional check for OPTIMIZE TABLE to preserve the next value.
rb://519 Approved by Jimmy Yang.
Also delete dict_update_statistics() and rename dict_update_statistics_low()
to dict_update_statistics() because the only thing that distinguished those
two functions was the removed parameter.
