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.

Simplify obfuscated pointer arithmetics.

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.

when the pwrite system call is not available.

Left over from r5950.

Tested with MySQL 5.1.38 and 5.1.30.

Starting at 5.1.38, MySQL server exports symbols needed
for dynamic plugin on Windows. There is no need for
Windows specific loading. Also, the CMake files are
simplified in 5.1.38.

When WITH_INNOBASE_STORAGE_ENGINE is specified during
configuration (win\configure.js), InnoDB is built as
a static library. Otherwise, a dynamic InnoDB will be
built (ha_innodb.dll).

CMakeLists.txt requires minor changes in order to work
with MySQL prior to 5.1.38. The changes will be in a
separate patch.

This patch addresses Mantis issue#286.

Should be innodb_open_files, spotted by Michael.

Add ChangeLog entries for c5938.

except c2932.

Bug#37232 and bug#31183 were fixed in the 6.0 branch only.
They should be fixed in the plugin too, specially MySQL 6.0
is discontinued at this point.

    ------------------------------------------------------------------------
    r2604 | inaam | 2008-08-21 09:37:06 -0500 (Thu, 21 Aug 2008) | 8 lines

    branches/6.0     bug#37232

    Relax locking behaviour for REPLACE INTO t SELECT ... FROM t1.
    Now SELECT on t1 is performed as a consistent read when the isolation
    level is set to READ COMMITTED.

    Reviewed by: Heikki
    ------------------------------------------------------------------------
    r2605 | inaam | 2008-08-21 09:59:33 -0500 (Thu, 21 Aug 2008) | 7 lines

    branches/6.0

    Added a comment to clarify why distinct calls to read MySQL binary
    log file name and log position do not entail any race condition.

    Suggested by: Heikki
    ------------------------------------------------------------------------
    r2956 | inaam | 2008-11-04 04:47:30 -0600 (Tue, 04 Nov 2008) | 11 lines

    branches/6.0  bug#31183

    If the system tablespace runs out of space because 'autoextend' is
    not specified with innodb_data_file_path there was no error message
    printed to the error log. The client would get 'table full' error.
    This patch prints an appropriate error message to the error log.

    rb://43

    Approved by: Marko
    ------------------------------------------------------------------------

Bug#44338 innodb has message about non-existing option 
innodb_max_files_open. Change the option to innodb_open_files.
The fix was committed into 6.0 branch.

Fix typo.

White space and formatting cleanup in the ChangeLog

Apparently, the definition of compressBound() has slightly changed.

This has been filed as Mantis Issue #345.

Add ChangeLog entries for r5916.

Whitespace cleanup in the ChangeLog.

(changes to CMakeLists.txt)

  ------------------------------------------------------------------------
  r5622 | vasil | 2009-08-03 15:27:00 +0300 (Mon, 03 Aug 2009) | 20 lines
  Changed paths:
     M /branches/5.1/Makefile.am

  branches/5.1:

  Merge a change from MySQL:

    ------------------------------------------------------------
    revno: 2988
    committer: Satya B <satya.bn@sun.com>
    branch nick: mysql-5.1-bugteam
    timestamp: Wed 2009-07-01 11:06:05 +0530
    message:
      Fix build failure after applying Innodb snapshot 5.1-ss5282

      After applying Innodb snapshot 5.1-ss5282, build was broken
      because of missing header file.

      Adding the header file to Makefile.am after informing the
      innodb developers.
    modified:
      storage/innobase/Makefile.am
  ------------------------------------------------------------------------
  r5740 | jyang | 2009-09-03 06:33:47 +0300 (Thu, 03 Sep 2009) | 5 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/include/db0err.h
     A /branches/5.1/mysql-test/innodb_bug46000.result
     A /branches/5.1/mysql-test/innodb_bug46000.test

  branches/5.1: Disallow creating index with the name of
  "GEN_CLUST_INDEX" which is reserved for the default system
  primary index. (Bug #46000) rb://149 approved by Sunny Bains.
  ------------------------------------------------------------------------
  r5741 | jyang | 2009-09-03 07:16:01 +0300 (Thu, 03 Sep 2009) | 5 lines
  Changed paths:
     M /branches/5.1/dict/dict0dict.c
     M /branches/5.1/handler/ha_innodb.cc
     A /branches/5.1/mysql-test/innodb_bug44369.result
     A /branches/5.1/mysql-test/innodb_bug44369.test
     M /branches/5.1/row/row0mysql.c

  branches/5.1: Block creating table with column name conflicting
  with Innodb reserved key words. (Bug #44369) rb://151 approved
  by Sunny Bains.
  ------------------------------------------------------------------------
  r5757 | jyang | 2009-09-04 04:26:13 +0300 (Fri, 04 Sep 2009) | 3 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/include/db0err.h
     D /branches/5.1/mysql-test/innodb_bug46000.result
     D /branches/5.1/mysql-test/innodb_bug46000.test

  branches/5.1: Revert change in 5740. Making the fix in a subsequent
  check in.
  ------------------------------------------------------------------------
  r5760 | jyang | 2009-09-04 07:07:34 +0300 (Fri, 04 Sep 2009) | 3 lines
  Changed paths:
     M /branches/5.1/dict/dict0dict.c
     M /branches/5.1/handler/ha_innodb.cc
     D /branches/5.1/mysql-test/innodb_bug44369.result
     D /branches/5.1/mysql-test/innodb_bug44369.test
     M /branches/5.1/row/row0mysql.c

  branches/5.1: This is to revert change 5741. A return status for
  create_table_def() needs to be fixed.
  ------------------------------------------------------------------------
  r5797 | calvin | 2009-09-09 18:26:29 +0300 (Wed, 09 Sep 2009) | 3 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc

  branches/5.1: merge change from 5.1.38

  HA_ERR_TOO_MANY_CONCURRENT_TRXS is added in 5.1.38.
  ------------------------------------------------------------------------
  r5799 | calvin | 2009-09-09 20:47:31 +0300 (Wed, 09 Sep 2009) | 10 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc

  branches/5.1: fix bug#46256

  Allow tables to be dropped even if the collation is not found,
  but issue a warning.

  Could not find an easy way to add mysql-test since it requires
  changes to charsets and restarting the server. Tests were
  executed manually.

  Approved by: Heikki (on IM)
  ------------------------------------------------------------------------
  r5805 | vasil | 2009-09-10 08:41:48 +0300 (Thu, 10 Sep 2009) | 7 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc

  branches/5.1:

  Fix a compilation warning caused by c5799:

  handler/ha_innodb.cc: In function 'void innobase_get_cset_width(ulint, ulint*, ulint*)':
  handler/ha_innodb.cc:830: warning: format '%d' expects type 'int', but argument 2 has type 'ulint'
  ------------------------------------------------------------------------
  r5834 | jyang | 2009-09-11 00:43:05 +0300 (Fri, 11 Sep 2009) | 5 lines
  Changed paths:
     M /branches/5.1/dict/dict0dict.c
     M /branches/5.1/handler/ha_innodb.cc
     A /branches/5.1/mysql-test/innodb_bug44369.result
     A /branches/5.1/mysql-test/innodb_bug44369.test
     M /branches/5.1/row/row0mysql.c

  branches/5.1: Block creating table with column name conflicting
  with Innodb reserved key words. (Bug #44369) rb://151 approved
  by Sunny Bains.
  ------------------------------------------------------------------------
  r5895 | jyang | 2009-09-15 03:39:21 +0300 (Tue, 15 Sep 2009) | 5 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     A /branches/5.1/mysql-test/innodb_bug46000.result
     A /branches/5.1/mysql-test/innodb_bug46000.test

  branches/5.1: Disallow creating index with the name of
  "GEN_CLUST_INDEX" which is reserved for the default system
  primary index. (Bug #46000) rb://149 approved by Marko Makela.
  ------------------------------------------------------------------------

diagnostics.  This was written in order to better track down
Issue #313 in InnoDB Hot Backup.

MLOG_LSN: A new redo log entry type, for recording the current log
sequence number (LSN).  This will be checked in an assertion in
recv_parse_log_rec().

rb://161, discussed with Sunny and Vasil.

Since r5872, the InnoDB Hot Backup build was broken.
Fix it by not defining any thread synchronization primitives in ut0ut.h.
InnoDB Hot Backup is a single-threaded program.

for https://svn.innodb.com/svn/hotbackup/branches/3.5

UNIV_SYNC_DEBUG is defined.

sync_thread_levels_g(): Add the parameter "warn".  Do not print
anything unless it is set.

sync_thread_add_level(): Pass warn=TRUE to sync_thread_levels_g()
when the check is within an assertion; FALSE if it is not.

In case of pages that are not made young the counter is incremented
only when the page in question is 'old'. In case of pages that are
made young the counter is incremented in case of all pages. For apple
to apple comparison this patch changes the 'young-making' counter to
consider only 'old' blocks.

Approved by: Marko

Add missing return statement in the test program that could have
caused a warning.

Back-merge c5880 and c5881 from branches/embedded-1.0:

  ------------------------------------------------------------------------
  r5880 | vasil | 2009-09-12 17:28:44 +0300 (Sat, 12 Sep 2009) | 18 lines
  Changed paths:
     M /branches/embedded-1.0/configure.in
     M /branches/embedded-1.0/include/os0sync.h
     M /branches/embedded-1.0/srv/srv0start.c
  
  branches/embedded-1.0:
  
  Clean up and simplify the code that surrounds the atomic ops:
  
  * Simplify the code that prints what atomics are used:
  Instead of repeating the same conditions on which each atomics are used
  use just one printf that prints a variable defined by the code which
  chooses what atomics to use.
  
  * In os0sync.h pick up each atomic variant only if it has been selected
  by autoconf (based on IB_ATOMIC_MODE_* macros). Define the startup message
  to be printed.
  
  * In configure.in: check what user has chosen and if he has chosen
  something that is not available, emit an error. If nothing has been chosen
  explicitly by the user, auto select an option according to the described
  logic in configure.in.
  
  ------------------------------------------------------------------------
  r5881 | vasil | 2009-09-12 20:08:27 +0300 (Sat, 12 Sep 2009) | 4 lines
  Changed paths:
     M /branches/embedded-1.0/configure.in
  
  branches/embedded-1.0:
  
  Fix syntax error in test program.
  
  ------------------------------------------------------------------------

Remove unnecessary macro.

Explicitly include os0sync.h to the places where HAVE_ATOMIC_BUILTINS and
INNODB_RW_LOCKS_USE_ATOMICS are used to avoid potential problems.

Rename HAVE_SOLARIS_ATOMICS to HAVE_IB_SOLARIS_ATOMICS and 
IB_HAVE_PAUSE_INSTRUCTION to HAVE_IB_PAUSE_INSTRUCTION so they
all follow the same HAVE_IB_* convention.

Define HAVE_ATOMIC_BUILTINS and INNODB_RW_LOCKS_USE_ATOMICS in os0sync.h
instead of in univ.i. The code expects os_*() macros to be present if
HAVE_ATOMIC_BUILTINS and INNODB_RW_LOCKS_USE_ATOMICS are defined. So define
them next to defining the os_*() macros.

Include ut0auxconf.h only if none of the macros it would define is defined.
The check when to include this header was outdated from the time when there
was only one macro involved.

Move the atomics checks that are in univ.i outside of
#if windows ... #else ... #endif
This simplifies the code and removes some duplicates like defining
HAVE_ATOMIC_BUILTINS if HAVE_WINDOWS_ATOMICS is defined in both branches.

Do not define the same macro HAVE_ATOMIC_PTHREAD_T for different events.
Instead define HAVE_IB_ATOMIC_PTHREAD_T_GCC and
HAVE_IB_ATOMIC_PTHREAD_T_SOLARIS.

Move the check whether to include ut0auxconf.h before everything because
we are now even checking for GCC atomics, we relied on MySQL to define
this macro before.

Update comment to reflect reality.

Add the check for GCC atomics to ut0auxconf* (copied from plug.in) because
we no longer rely on MySQL's HAVE_GCC_ATOMIC_BUILTINS.

Simplify the compile time checks by splittig them into 5 independent checks:

* Whether GCC atomics are available
* Whether pthread_t can be used by GCC atomics
* Whether Solaris libc atomics are available
* Whether pthread_t can be used by Solaris libs atomics
* Checking the size of pthread_t

Include string.h which is needed for memset().

Check that pthread_t can indeed be passed to Solaris atomic functions, instead
of assuming that it can be passed if 0 can be assigned to it. It could be that:
* 0 can be assigned, but pthread_t cannot be passed and
* 0 cannot be assigned but pthread_t can be passed

Better to check what we are interested in, not something else and make
assumptions.

Fix the indentation of the closing bracket.

dropping incomplete indexes (Issue #337).

trx_rollback_or_clean_recovered(ibool all): New function, split from
trx_rollback_or_clean_all_recovered().  all==FALSE will only roll back
dictionary transactions.

recv_recovery_from_checkpoint_finish(): Call
trx_rollback_or_clean_recovered(FALSE) before
row_merge_drop_temp_indexes().

rb://158 approved by Sunny Bains

addressing Bug #45015 (Issue #316), in r5703.

buf_page_set_accessed_make_young(): New auxiliary function, called by
buf_page_get_zip(), buf_page_get_gen(),
buf_page_optimistic_get_func(). Call ut_time_ms() outside of
buf_pool_mutex. Use cached access_time.

buf_page_set_accessed(): Add the parameter time_ms, so that
ut_time_ms() need not be called while holding buf_pool_mutex.

buf_page_optimistic_get_func(), buf_page_get_known_nowait(): Read
buf_page_t::access_time without holding buf_pool_mutex. This should be
OK, because the field is only used for heuristic purposes.

buf_page_peek_if_too_old(): If buf_pool->freed_page_clock == 0, return
FALSE, so that we will not waste time moving blocks in the LRU list in
the warm-up phase or when the workload fits in the buffer pool.

rb://156 approved by Sunny Bains