queues when the thread is not holding a space->latch.

When UNIV_DEBUG is defined while UNIV_SYNC_DEBUG is not,
latching order violations will still occur and deadlocks will be possible.

sync_thread_levels_nonempty_gen(): Renamed from
sync_thread_levels_empty_gen().  Return the violating latch or NULL
instead of FALSE or TRUE, except that there will be a ut_error before
the non-NULL return.

sync_thread_levels_empty_gen(): A macro that negates the return value of
sync_thread_levels_nonempty_gen().

sync_thread_levels_contains(): New function, based on
sync_thread_levels_nonempty_gen().

This should fix Issue #441.

isolation level, do not attempt to access a clustered index record
that has been marked for deletion.  This fixes Issue #433.

Approved by Heikki over the IM.

and explicitly free mem_hash_mutex in mem_close().
This fixes the breakage of UNIV_MEM_DEBUG that was filed as Issue #434.

before checking block->is_hashed, because the latter may be uninitialized
right after server startup.

Add some const qualifiers and comments.

more accurately.

  ------------------------------------------------------------------------
  r6421 | jyang | 2010-01-12 07:59:16 +0200 (Tue, 12 Jan 2010) | 8 lines
  Changed paths:
     M /branches/5.1/row/row0mysql.c

  branches/5.1: Fix bug #49238: Creating/Dropping a temporary table
  while at 1023 transactions will cause assert. Handle possible
  DB_TOO_MANY_CONCURRENT_TRXS when deleting metadata in
  row_drop_table_for_mysql().

  rb://220, approved by Marko
  ------------------------------------------------------------------------
  r6422 | marko | 2010-01-12 11:34:27 +0200 (Tue, 12 Jan 2010) | 3 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/handler/ha_innodb.h

  branches/5.1: Non-functional change:
  Make innobase_get_int_col_max_value() a static function.
  It does not access any fields of class ha_innobase.
  ------------------------------------------------------------------------
  r6424 | marko | 2010-01-12 12:22:19 +0200 (Tue, 12 Jan 2010) | 16 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/handler/ha_innodb.h

  branches/5.1: In innobase_initialize_autoinc(), do not attempt to read
  the maximum auto-increment value from the table if
  innodb_force_recovery is set to at least 4, so that writes are
  disabled. (Bug #46193)

  innobase_get_int_col_max_value(): Move the function definition before
  ha_innobase::innobase_initialize_autoinc(), because that function now
  calls this function.

  ha_innobase::innobase_initialize_autoinc(): Change the return type to
  void.  Do not attempt to read the maximum auto-increment value from
  the table if innodb_force_recovery is set to at least 4.  Issue
  ER_AUTOINC_READ_FAILED to the client when the auto-increment value
  cannot be read.

  rb://144 by Sunny, revised by Marko
  ------------------------------------------------------------------------

also when returning DB_CORRUPTION.

Define a wrapper macro that passes __FILE__, __LINE__ of the caller
to buf_page_get_gen().
This will ease the diagnosis of the likes of Issue #135.

except r6347, r6349, r6350 which were committed separately
to both branches, and r6310, which was backported from zip to 5.1.

  ------------------------------------------------------------------------
  r6206 | jyang | 2009-11-20 09:38:43 +0200 (Fri, 20 Nov 2009) | 3 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc

  branches/5.1: Non-functional change, fix formatting.
  ------------------------------------------------------------------------
  r6230 | sunny | 2009-11-24 23:52:43 +0200 (Tue, 24 Nov 2009) | 3 lines
  Changed paths:
     M /branches/5.1/mysql-test/innodb-autoinc.result

  branches/5.1: Fix autoinc failing test results.
  (this should be skipped when merging 5.1 into zip)
  ------------------------------------------------------------------------
  r6231 | sunny | 2009-11-25 10:26:27 +0200 (Wed, 25 Nov 2009) | 7 lines
  Changed paths:
     M /branches/5.1/mysql-test/innodb-autoinc.result
     M /branches/5.1/mysql-test/innodb-autoinc.test
     M /branches/5.1/row/row0sel.c

  branches/5.1: Fix BUG#49032 - auto_increment field does not initialize to last value in InnoDB Storage Engine.

  We use the appropriate function to read the column value for non-integer
  autoinc column types, namely float and double.

  rb://208. Approved by Marko.
  ------------------------------------------------------------------------
  r6232 | sunny | 2009-11-25 10:27:39 +0200 (Wed, 25 Nov 2009) | 2 lines
  Changed paths:
     M /branches/5.1/row/row0sel.c

  branches/5.1: This is an interim fix, fix white space errors.
  ------------------------------------------------------------------------
  r6233 | sunny | 2009-11-25 10:28:35 +0200 (Wed, 25 Nov 2009) | 2 lines
  Changed paths:
     M /branches/5.1/include/mach0data.h
     M /branches/5.1/include/mach0data.ic
     M /branches/5.1/mysql-test/innodb-autoinc.result
     M /branches/5.1/mysql-test/innodb-autoinc.test
     M /branches/5.1/row/row0sel.c

  branches/5.1: This is an interim fix, fix tests and make read float/double arg const.
  ------------------------------------------------------------------------
  r6234 | sunny | 2009-11-25 10:29:03 +0200 (Wed, 25 Nov 2009) | 2 lines
  Changed paths:
     M /branches/5.1/row/row0sel.c

  branches/5.1: This is an interim fix, fix whitepsace issues.
  ------------------------------------------------------------------------
  r6235 | sunny | 2009-11-26 01:14:42 +0200 (Thu, 26 Nov 2009) | 9 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: Fix Bug#47720 - REPLACE INTO Autoincrement column with negative values.

  This bug is similiar to the negative autoinc filter patch from earlier,
  with the additional handling of filtering out the negative column values
  set explicitly by the user.

  rb://184
  Approved by Heikki.
  ------------------------------------------------------------------------
  r6242 | vasil | 2009-11-27 22:07:12 +0200 (Fri, 27 Nov 2009) | 4 lines
  Changed paths:
     M /branches/5.1/export.sh

  branches/5.1:

  Minor changes to support plugin snapshots.
  ------------------------------------------------------------------------
  r6306 | calvin | 2009-12-14 15:12:46 +0200 (Mon, 14 Dec 2009) | 5 lines
  Changed paths:
     M /branches/5.1/mysql-test/innodb-autoinc.result
     M /branches/5.1/mysql-test/innodb-autoinc.test

  branches/5.1: fix bug#49267: innodb-autoinc.test fails on windows
  because of different case mode

  There is no change to the InnoDB code, only to fix test case by
  changing "T1" to "t1".
  ------------------------------------------------------------------------
  r6324 | jyang | 2009-12-17 06:54:24 +0200 (Thu, 17 Dec 2009) | 8 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/include/lock0lock.h
     M /branches/5.1/include/srv0srv.h
     M /branches/5.1/lock/lock0lock.c
     M /branches/5.1/log/log0log.c
     M /branches/5.1/srv/srv0srv.c
     M /branches/5.1/srv/srv0start.c

  branches/5.1: Fix bug #47814 - Diagnostics are frequently not
  printed after a long lock wait in InnoDB. Separate out the
  lock wait timeout check thread from monitor information
  printing thread.

  rb://200 Approved by Marko.
  ------------------------------------------------------------------------

------------------------------------------------------------
revno: 3236
committer: Satya B <satya.bn@sun.com>
branch nick: mysql-5.1-bugteam
timestamp: Tue 2009-12-01 17:48:57 +0530
message:
  merge to mysql-5.1-bugteam
    ------------------------------------------------------------
    revno: 3234.1.1
    committer: Gleb Shchepa <gshchepa@mysql.com>
    branch nick: mysql-5.1-bugteam
    timestamp: Tue 2009-12-01 14:38:40 +0400
    message:
      Bug #38883 (reopened): thd_security_context is not thread safe, crashes?

      manual merge 5.0-->5.1, updating InnoDB plugin.
    ------------------------------------------------------------
    revno: 1810.3968.13
    committer: Gleb Shchepa <gshchepa@mysql.com>
    branch nick: mysql-5.0-bugteam
    timestamp: Tue 2009-12-01 14:24:44 +0400
    message:
      Bug #38883 (reopened): thd_security_context is not thread safe, crashes?

      The bug 38816 changed the lock that protects THD::query from
      LOCK_thread_count to LOCK_thd_data, but didn't update the associated
      InnoDB functions.

      1. The innobase_mysql_prepare_print_arbitrary_thd and the
      innobase_mysql_end_print_arbitrary_thd InnoDB functions have been
      removed, since now we have a per-thread mutex: now we don't need to wrap
      several inter-thread access tries to THD::query with a single global
      LOCK_thread_count lock, so we can simplify the code.

      2. The innobase_mysql_print_thd function has been modified to lock
      LOCK_thd_data in direct way.

Revert a change that was accidentally committed in r6345.

debug assertion ut_ad(len > 0) with ut_ad(len >= OS_FILE_LOG_BLOCK_SIZE).

This change is only for readability, for Issue #428.  Another
assertion on len being an integer multiple of OS_FILE_LOG_BLOCK_SIZE
already ensured together with the old ut_ad(len > 0) that actually len
must be at least OS_FILE_LOG_BLOCK_SIZE.

transaction isolation level that was made unnecessary by r5826 (Issue #337).
When this function is called, any active data dictionary transaction
should have been rolled back.

assertion on mutex.magic_n.  InnoDB Hot Backup is a single-threaded
program and does not contain mutexes.  This change allows InnoDB Hot
Backup to be compiled with UNIV_DEBUG.

Suggested by Michael Izioumtchenko.

Use page_rec_get_next_const() instead. This silences a gcc 4.2.4 warning.
Reported by Sunny Bains.

const qualifier.

accidentally added in r1591, which introduced dfield_t::ext in order
to make the merge sort of fast index creation support externally
stored columns.

Initially, I tried to allocate the bit for dfield_t::ext from
dfield_t::len by making the length 31 bits and mapping UNIV_SQL_NULL
to something that would fit in it.  Then I decided that it would be
too risky.  The redundant check was part of the mapping.  The
condition may have been dfield_is_null() initially.

This is similar to the redundant code in row_sel_fetch_columns() that
was noticed by Sergey Petrunya on the MySQL internals list and removed
in r6285.  As far as I can tell, there are no redundant UNIV_SQL_NULL
assignments remaining after this change.

accidentally added in r1591, which introduced dfield_t::ext in order
to make the merge sort of fast index creation support externally
stored columns,

Initially, I tried to allocate the bit for dfield_t::ext from
dfield_t::len by making the length 31 bits and mapping UNIV_SQL_NULL
to something that would fit in it.  Then I decided that it would be
too risky.  The redundant check was part of the mapping.  The
condition may have been dfield_is_null() initially.

This redundant code was noticed by Sergey Petrunya on the MySQL
internals list.

defined to succeed:

include/trx0sys.h: Allow Hot Backup build to see some
                   TRX_SYS_DOUBLEWRITE_... macros. 
trx/trx0sys.c:     Exclude trx_sys_close() function from Hot Backup build.
log/log0recv.[ch]: Exclude recv_sys_var_init() function from Hot Backup build.

This change should not affect !UNIV_HOTBACKUP build.

data dictionary mutex is being held while table->indexes is accessed.
This is already the case.

Currently, only dict_table_get_next_index() and dict_table_get_first_index()
are being invoked without holding dict_sys->mutex.

will be displayed at start-up.

should not break crash recovery, but UNIV_IBUF_COUNT_DEBUG will.

1.0.6 has been released

Write the is_temp flag to SYS_TABLES.MIX_LEN.

dict_table_t::flags: Add a flag for is_temporary, DICT_TF2_TEMPORARY.
Unlike other flags, this will not be written to the tablespace flags
or SYS_TABLES.TYPE, but only to SYS_TABLES.MIX_LEN.

dict_build_table_def_step(): Only pass DICT_TF_BITS to tablespaces.

dict_check_tablespaces_and_store_max_id(), dict_load_table():
Suppress errors about temporary tables not being found.

dict_create_sys_tables_tuple(): Write the DICT_TF2_TEMPORARY flag
to SYS_TABLES.MIX_LEN.

fil_space_create(), fil_create_new_single_table_tablespace(): Add assertions
about space->flags.

row_drop_table_for_mysql(): Do not complain about non-found temporary tables.

rb://160 approved by Heikki Tuuri.  This addresses the second part of
Bug #41609 Crash recovery does not work for InnoDB temporary tables.

Whitespace fixup.

Add ChangeLog entry for c6207.

(r6203 was skipped as it is already in branches/zip)

  ------------------------------------------------------------------------
  r6200 | vasil | 2009-11-19 12:14:23 +0200 (Thu, 19 Nov 2009) | 4 lines
  Changed paths:
     M /branches/5.1/btr/btr0btr.c
  
  branches/5.1:
  
  White space fixup - indent under the opening (
  
  ------------------------------------------------------------------------
  r6203 | jyang | 2009-11-19 15:12:22 +0200 (Thu, 19 Nov 2009) | 8 lines
  Changed paths:
     M /branches/5.1/btr/btr0btr.c
  
  branches/5.1: Use btr_free_root() instead of fseg_free() for
  the fix of bug #48469, because fseg_free() is not defined
  in the zip branch. And we could save one mini-trasaction started
  by fseg_free().
  
  Approved by Marko.
  
  
  ------------------------------------------------------------------------
  r6205 | jyang | 2009-11-20 07:55:48 +0200 (Fri, 20 Nov 2009) | 11 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
  
  branches/5.1: Add a special case to handle the Duplicated Key error
  and return DB_ERROR instead. This is to avoid a possible SIGSEGV
  by mysql error handling re-entering the storage layer for dup key
  info without proper table handle.
  This is to prevent a server crash when error situation in bug
  #45961 "DDL on partitioned innodb tables leaves data dictionary
  in an inconsistent state" happens.
  
  rb://157 approved by Sunny Bains.
  
  
  ------------------------------------------------------------------------
  r6206 | jyang | 2009-11-20 09:38:43 +0200 (Fri, 20 Nov 2009) | 5 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
  
  branches/5.1: Fix a minor code formating issue for 
  the parenthesis iplacement of the if condition in
  rename_table().
  
  
  ------------------------------------------------------------------------

in branches/zip. To port fix for bug #48469 to zip,
we can use btr_free_root() which frees the page,
and also does not require mini-transaction.

Approved by Marko.

on orphaned tables when creating a primary key.

  ------------------------------------------------------------------------
  r6187 | jyang | 2009-11-18 05:27:30 +0200 (Wed, 18 Nov 2009) | 9 lines
  Changed paths:
     M /branches/5.1/btr/btr0btr.c
  
  branches/5.1: Fix bug #48469 "when innodb tablespace is
  configured too small, crash and corruption!". Function
  btr_create() did not check the return status of fseg_create(),
  and continue the index creation even there is no sufficient
  space.
  
  rb://205 Approved by Marko
  
  
  ------------------------------------------------------------------------
  r6188 | jyang | 2009-11-18 07:14:23 +0200 (Wed, 18 Nov 2009) | 8 lines
  Changed paths:
     M /branches/5.1/data/data0type.c
  
  branches/5.1: Fix bug #48526 "Data type for float and
  double is incorrectly reported in InnoDB table monitor".
  Certain datatypes are not printed correctly in
  dtype_print().
  
  rb://204 Approved by Marko.
  
  
  ------------------------------------------------------------------------

Add ChangeLog entry for r6197.

Due to MySQL changes to the CMake, it is no longer able
to build InnoDB plugin as a static library on Windows.
The fix is proposed by Vlad of MySQL.

Increment version number from 1.0.5 to 1.0.6 since 1.0.5 was just released
by MySQL and we will soon release 1.0.6.