Commit graph

485 commits

Author SHA1 Message Date
Mats Kindahl
f8d2154c30 BUG#57108: mysqld crashes when I attempt to install plugin
If a relative path is supplied to option --defaults-file or
--defaults-extra-file, the server will crash when executing
an INSTALL PLUGIN command. The reason is that the defaults
file is initially read relative the current working directory
when the server is started, but when INSTALL PLUGIN is executed,
the server has changed working directory to the data directory.
Since there is no check that the call to my_load_defaults()
inside mysql_install_plugin(), the subsequence call to
free_defaults() will crash the server.

This patch fixes the problem by:

- Prepending the current working directory to the file name when
  a relative path is given to the --defaults-file or --defaults-
  extra-file option the first time my_load_defaults() is called,
  which is just after the server has started in main().

- Adding a check of the return value of my_load_defaults() inside
  mysql_install_plugin() and aborting command (with an error) if
  an error is returned.

- It also adds a check of the return value for load_defaults in
  lib_sql.cc for the embedded server since that was missing.

To test that the relative files for the options --defaults-file and
--defaults-extra-file is handled properly, mysql-test-run.pl is also
changed to not add a --defaults-file option if one is provided in the
tests *.opt file.
2010-11-04 11:00:59 +01:00
Sergey Vojtovich
85d023eb38 Merge WL#5496 and WL#5341 to 5.5-bugteam. 2010-10-07 19:52:34 +04:00
Georgi Kodinov
8789c79723 merge 2010-10-04 15:42:16 +03:00
Sergey Vojtovich
37afe1b34a WL#5341 - Sticky plugins
This patch implements "permanent" load option for
plugins as specified by WL#5341.

mysql-test/r/plugin_load_option.result:
  A test case for WL#5341.
mysql-test/t/plugin_load_option-master.opt:
  A test case for WL#5341.
mysql-test/t/plugin_load_option.test:
  A test case for WL#5341.
sql/share/errmsg-utf8.txt:
  An error message for WL#5341.
sql/sql_plugin.cc:
  Added FORCE_PLUS_PERMANENT plugin load option.
sql/sql_plugin.h:
  Expose and use plugin load option instead of
  is_mandatory flag. This is a requirement for
  to-be-implemented WL5496.
2010-09-27 16:55:09 +04:00
Mats Kindahl
3f975a7fcf Merging into mysql-5.5-bugfixing. 2010-09-21 23:24:29 +02:00
Sergei Golubchik
54708d354d merged 2010-09-21 16:24:03 +02:00
Sergei Golubchik
27c90812cf fix for MySQL Bug#44797 - plugins w/o command-line options have no disabling option in --help 2010-09-21 16:21:30 +02:00
Georgi Kodinov
353739fdef merge of mysql-5.5 into mysql-5.5-wl1054 2010-09-20 17:17:32 +03:00
Sergey Vojtovich
508104d7d0 Merge fix for BUG#54989 to mysql-5.5-bugfixing. 2010-08-23 13:38:10 +04:00
Sergey Vojtovich
b51c8cab3e BUG#54989 - With null_audit installed, server hangs on an
attempt to install a plugin twice

Server crashes when [UN]INSTALL PLUGIN fails (returns an
error) and general log is disabled and there are audit
plugins interested in MYSQL_AUDIT_GENERAL_CLASS. 

When audit event is triggered, audit subsystem acquires interested
plugins by walking through plugin list. Evidently plugin list
iterator protects plugin list by acquiring LOCK_plugin, see
plugin_foreach_with_mask().

On the other hand [UN]INSTALL PLUGIN is acquiring LOCK_plugin
rather for a long time.

When audit event is triggered during [UN]INSTALL PLUGIN, plugin
list iterator acquires the same lock (within the same thread)
second time.

Repeatable only with general_log disabled, because general_log
triggers MYSQL_AUDIT_GENERAL_LOG event, which acquires audit
plugins before [UN]INSTALL PLUGIN acquired LOCK_plugin.

With this fix we pre-acquire audit plugins for events that
may potentially occur during [UN]INSTALL PLUGIN.

This hack should be removed when LOCK_plugin is fixed so it
protects only what it supposed to protect.

No test case for this fix - we do not have facility to test
audit plugins yet.

sql/sql_audit.cc:
  Move "acquire audit plugin" logics to a separate
  function.
sql/sql_audit.h:
  Move "acquire audit plugin" logics to a separate
  function.
sql/sql_plugin.cc:
  Pre-acquire audit plugins for events that may potentially occur
  during [UN]INSTALL PLUGIN.
2010-08-20 13:58:28 +04:00
Jon Olav Hauglid
41caa7f483 Bug #56085 Embedded server tests fails with assert in
check_if_table_exists()

This assert was triggered when the server tried to load plugins
while running in embedded server mode. In embedded server mode,
check_if_table_exists() was used to check if mysql.plugin existed
so that ER_NO_SUCH_TABLE could be silently ignored.
The problem was that this check was done without acquiring a metadata
lock on mysql.plugin first. This triggered the assert.

This patch fixes the problem by removing the call to
check_if_table_exists() from plugin_load(). Instead an error handler
which traps ER_NO_SUCH_TABLE is installed before trying to open
mysql.plugin when running in embedded server mode.

No test coverage added since this assert was triggered by 
existing tests running in embedded server mode.


sql/sql_base.cc:
  Renamed Prelock_error_handler to No_such_table_error_handler
  and moved the declaration to sql_base.h to make it usable
  in plugin_load().
sql/sql_base.h:
  Renamed Prelock_error_handler to No_such_table_error_handler
  and moved the declaration to sql_base.h to make it usable
  in plugin_load().
sql/sql_plugin.cc:
  Removed call to check_if_table_exists() used to check for mysql.plugin 
  in plugin_load() for embedded server. Instead install error handler
  which traps ER_NO_SUCH_TABLE during open_and_lock_tables().
2010-08-19 11:33:37 +02:00
Georgi Kodinov
9705711596 WL#1054: Pluggable authentication support
Merged the implementation to a new base tree.
2010-08-09 11:32:50 +03:00
Michael Widenius
d042146e5b Merge with MariaDB 5.1.49
Removed references to HA_END_SPACE_KEY (which has been 0 for a long time)
2010-08-05 22:56:11 +03:00
Georgi Kodinov
ae64b6f7ab merge 2010-08-05 15:34:19 +03:00
Georgi Kodinov
7b3b8ae154 Addendum to bug #42144 : fixed a wrong type conversation causing plugin tests
failures on sparc64.
2010-08-05 15:10:24 +03:00
Georgi Kodinov
b1a8b3aa6e Bug #42144: plugin_load fails
Reverted the ulong->uint diff
Re-applied the first diff.
The original commit message follows:

enum plugin system variables are ulong internally, not int.
On systems where long is not the same as an int it causes
problems. 
Fixed by correct typecasting. Removed the test from the 
experimental list.
2010-08-04 15:58:09 +03:00
Georgi Kodinov
5eeb6488cf Bug #42144: plugin_load fails
The enum system variables were handled inconsistently 
as ints, unsigned int and unsigned long on various places.
This caused problems on platforms on which 
sizeof(int) != sizeof(long).
Fixed by homogenizing the type of the enum variables
to unsigned int, since it's size compatible with the C enum
type. 
Removed the test from the experimental list.
2010-08-03 19:01:30 +03:00
Michael Widenius
e0a6b02c5d Merge with MySQL 5.1.49
Fixed Bug#52005 'JOIN_TAB->dependent' may be incorrectly propageted for multilevel outer joins' in a better way (patch from Sergey Petrunya)
2010-08-02 12:01:24 +03:00
Konstantin Osipov
c4c678f653 Merge trunk-bugfixing -> trunk-runtime. 2010-07-27 18:32:42 +04:00
Konstantin Osipov
36290c0923 A pre-requisite patch for the fix for Bug#52044.
This patch also fixes Bug#55452 "SET PASSWORD is
replicated twice in RBR mode".

The goal of this patch is to remove the release of 
metadata locks from close_thread_tables().
This is necessary to not mistakenly release
the locks in the course of a multi-step
operation that involves multiple close_thread_tables()
or close_tables_for_reopen().

On the same token, move statement commit outside 
close_thread_tables().

Other cleanups:
Cleanup COM_FIELD_LIST.
Don't call close_thread_tables() in COM_SHUTDOWN -- there
are no open tables there that can be closed (we leave
the locked tables mode in THD destructor, and this
close_thread_tables() won't leave it anyway).

Make open_and_lock_tables() and open_and_lock_tables_derived()
call close_thread_tables() upon failure.
Remove the calls to close_thread_tables() that are now
unnecessary.

Simplify the back off condition in Open_table_context.

Streamline metadata lock handling in LOCK TABLES 
implementation.

Add asserts to ensure correct life cycle of 
statement transaction in a session.

Remove a piece of dead code that has also become redundant
after the fix for Bug 37521.

mysql-test/r/variables.result:
  Update results: set @@autocommit and statement transaction/
  prelocked mode.
mysql-test/r/view.result:
  A harmless change in CHECK TABLE <view> status for a broken view.
  If previously a failure to prelock all functions used in a view 
  would leave the connection in LTM_PRELOCKED mode, now we call
  close_thread_tables() from open_and_lock_tables()
  and leave prelocked mode, thus some check in mysql_admin_table() that
  works only in prelocked/locked tables mode is no longer activated.
mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result:
  Fixed Bug#55452 "SET PASSWORD is replicated twice in
  RBR mode": extra binlog events are gone from the
  binary log.
mysql-test/t/variables.test:
  Add a test case: set autocommit and statement transaction/prelocked
  mode.
sql/event_data_objects.cc:
  Simplify code in Event_job_data::execute().
  Move sp_head memory management to lex_end().
sql/event_db_repository.cc:
  Move the release of metadata locks outside
  close_thread_tables().
  Make sure we call close_thread_tables() when
  open_and_lock_tables() fails and remove extra
  code from the events data dictionary.
  Use close_mysql_tables(), a new internal
  function to properly close mysql.* tables
  in the data dictionary.
  Contract Event_db_repository::drop_events_by_field,
  drop_schema_events into one function.
  When dropping all events in a schema,
  make sure we don't mistakenly release all
  locks acquired by DROP DATABASE. These
  include locks on the database name
  and the global intention exclusive
  metadata lock.
sql/event_db_repository.h:
  Function open_event_table() does not require an instance 
  of Event_db_repository.
sql/events.cc:
  Use close_mysql_tables() instead of close_thread_tables()
  to bootstrap events, since the latter no longer
  releases metadata locks.
sql/ha_ndbcluster.cc:
  - mysql_rm_table_part2 no longer releases
  acquired metadata locks. Do it in the caller.
sql/ha_ndbcluster_binlog.cc:
  Deploy the new protocol for closing thread
  tables in run_query() and ndb_binlog_index
  code.
sql/handler.cc:
  Assert that we never call ha_commit_trans/
  ha_rollback_trans in sub-statement, which
  is now the case.
sql/handler.h:
  Add an accessor to check whether THD_TRANS object
  is empty (has no transaction started).
sql/log.cc:
  Update a comment.
sql/log_event.cc:
  Since now we commit/rollback statement transaction in 
  mysql_execute_command(), we need a mechanism to communicate
  from Query_log_event::do_apply_event() to mysql_execute_command()
  that the statement transaction should be rolled back, not committed.
  Ideally it would be a virtual method of THD. I hesitate
  to make THD a virtual base class in this already large patch.
  Use a thd->variables.option_bits for now.
  
  Remove a call to close_thread_tables() from the slave IO
  thread. It doesn't open any tables, and the protocol
  for closing thread tables is more complicated now.
  
  Make sure we properly close thread tables, however, 
  in Load_data_log_event, which doesn't
  follow the standard server execution procedure
  with mysql_execute_command().
  @todo: this piece should use Server_runnable
  framework instead.
  Remove an unnecessary call to mysql_unlock_tables().
sql/rpl_rli.cc:
  Update Relay_log_info::slave_close_thread_tables()
  to follow the new close protocol.
sql/set_var.cc:
  Remove an unused header.
sql/slave.cc:
  Remove an unnecessary call to
  close_thread_tables().
sql/sp.cc:
  Remove unnecessary calls to close_thread_tables()
  from SP DDL implementation. The tables will
  be closed by the caller, in mysql_execute_command().
  When dropping all routines in a database, make sure
  to not mistakenly drop all metadata locks acquired
  so far, they include the scoped lock on the schema.
sql/sp_head.cc:
  Correct the protocol that closes thread tables
  in an SP instruction.
  Clear lex->sphead before cleaning up lex
  with lex_end to make sure that we don't
  delete the sphead twice. It's considered
  to be "cleaner" and more in line with
  future changes than calling delete lex->sphead
  in other places that cleanup the lex.
sql/sp_head.h:
  When destroying m_lex_keeper of an instruction,
  don't delete the sphead that all lex objects
  share. 
  @todo: don't store a reference to routine's sp_head
  instance in instruction's lex.
sql/sql_acl.cc:
  Don't call close_thread_tables() where the caller will
  do that for us.
  Fix Bug#55452 "SET PASSWORD is replicated twice in RBR 
  mode" by disabling RBR replication in change_password()
  function.
  Use close_mysql_tables() in bootstrap and ACL reload
  code to make sure we release all metadata locks.
sql/sql_base.cc:
  This is the main part of the patch:
  - remove manipulation with thd->transaction
  and thd->mdl_context from close_thread_tables().
  Now this function is only responsible for closing
  tables, nothing else.
  This is necessary to be able to easily use
  close_thread_tables() in procedures, that
  involve multiple open/close tables, which all
  need to be protected continuously by metadata
  locks.
  Add asserts ensuring that TABLE object
  is only used when is protected by a metadata lock.
  Simplify the back off condition of Open_table_context,
  we no longer need to look at the autocommit mode.
  Make open_and_lock_tables() and open_normal_and_derived_tables()
  close thread tables and release metadata locks acquired so-far 
  upon failure. This simplifies their usage.
  Implement close_mysql_tables().
sql/sql_base.h:
  Add declaration for close_mysql_tables().
sql/sql_class.cc:
  Remove a piece of dead code that has also become redundant
  after the fix for Bug 37521.
  The code became dead when my_eof() was made a non-protocol method,
  but a method that merely modifies the diagnostics area.
  The code became redundant with the fix for Bug#37521, when 
  we started to cal close_thread_tables() before
  Protocol::end_statement().
sql/sql_do.cc:
  Do nothing in DO if inside a substatement
  (the assert moved out of trans_rollback_stmt).
sql/sql_handler.cc:
  Add comments.
sql/sql_insert.cc:
  Remove dead code. 
  Release metadata locks explicitly at the
  end of the delayed insert thread.
sql/sql_lex.cc:
  Add destruction of lex->sphead to lex_end(),
  lex "reset" method called at the end of each statement.
sql/sql_parse.cc:
  Move close_thread_tables() and other related
  cleanups to mysql_execute_command()
  from dispatch_command(). This has become
  possible after the fix for Bug#37521.
  Mark federated SERVER statements as DDL.
  
  Next step: make sure that we don't store
  eof packet in the query cache, and move
  the query cache code outside mysql_parse.
  
  Brush up the code of COM_FIELD_LIST.
  Remove unnecessary calls to close_thread_tables().
  
  When killing a query, don't report "OK"
  if it was a suicide.
sql/sql_parse.h:
  Remove declaration of a function that is now static.
sql/sql_partition.cc:
  Remove an unnecessary call to close_thread_tables().
sql/sql_plugin.cc:
  open_and_lock_tables() will clean up
  after itself after a failure.
  Move close_thread_tables() above
  end: label, and replace with close_mysql_tables(),
  which will also release the metadata lock
  on mysql.plugin.
sql/sql_prepare.cc:
  Now that we no longer release locks in close_thread_tables()
  statement prepare code has become more straightforward.
  Remove the now redundant check for thd->killed() (used
  only by the backup project) from Execute_server_runnable.
  Reorder code to take into account that now mysql_execute_command()
  performs lex->unit.cleanup() and close_thread_tables().
sql/sql_priv.h:
  Add a new option to server options to interact
  between the slave SQL thread and execution
  framework (hack). @todo: use a virtual
  method of class THD instead.
sql/sql_servers.cc:
  Due to Bug 25705 replication of 
  DROP/CREATE/ALTER SERVER is broken.
  Make sure at least we do not attempt to 
  replicate these statements using RBR,
  as this violates the assert in close_mysql_tables().
sql/sql_table.cc:
  Do not release metadata locks in mysql_rm_table_part2,
  this is done by the caller.
  Do not call close_thread_tables() in mysql_create_table(),
  this is done by the caller. 
  Fix a bug in DROP TABLE under LOCK TABLES when,
  upon error in wait_while_table_is_used() we would mistakenly
  release the metadata lock on a non-dropped table.
  Explicitly release metadata locks when doing an implicit
  commit.
sql/sql_trigger.cc:
  Now that we delete lex->sphead in lex_end(),
  zero the trigger's sphead in lex after loading
  the trigger, to avoid double deletion.
sql/sql_udf.cc:
  Use close_mysql_tables() instead of close_thread_tables().
sql/sys_vars.cc:
  Remove code added in scope of WL#4284 which would
  break when we perform set @@session.autocommit along
  with setting other variables and using tables or functions.
  A test case added to variables.test.
sql/transaction.cc:
  Add asserts.
sql/tztime.cc:
  Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 14:25:53 +04:00
Davi Arnaut
97c3182312 WL#5498: Remove dead and unused source code
Remove code that has been disabled for a long time.
2010-07-23 17:09:27 -03:00
Michael Widenius
e9166ca152 Fix for LP#588251: doStartTableScan() result not checked.
The issue was that we didn't always check result of ha_rnd_init() which caused a problem for handlers that returned an error in this code.
- Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked.
- Added ha_rnd_init_with_error() that prints error on failure.
- Checked all usage of ha_rnd_init() and ensure we generate an error message on failures.
- Changed init_read_record() to return 1 on failure.




sql/create_options.cc:
  Fixed wrong printf
sql/event_db_repository.cc:
  Check result from init_read_record()
sql/events.cc:
  Check result from init_read_record()
sql/filesort.cc:
  Check result from ha_rnd_init()
sql/ha_partition.cc:
  Check result from ha_rnd_init()
sql/ha_partition.h:
  Fixed compiler warning
sql/handler.cc:
  Added ha_rnd_init_with_error()
  Check result from ha_rnd_init()
sql/handler.h:
  Added ha_rnd_init_with_error()
  Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked
sql/item_subselect.cc:
  Check result from ha_rnd_init()
sql/log.cc:
  Check result from ha_rnd_init()
sql/log_event.cc:
  Check result from ha_rnd_init()
sql/log_event_old.cc:
  Check result from ha_rnd_init()
sql/mysql_priv.h:
  init_read_record() now returns error code on failure
sql/opt_range.cc:
  Check result from ha_rnd_init()
sql/records.cc:
  init_read_record() now returns error code on failure
  Check result from ha_rnd_init()
sql/sql_acl.cc:
  Check result from init_read_record()
sql/sql_cursor.cc:
  Print error if ha_rnd_init() fails
sql/sql_delete.cc:
  Check result from init_read_record()
sql/sql_help.cc:
  Check result from init_read_record()
sql/sql_plugin.cc:
  Check result from init_read_record()
sql/sql_select.cc:
  Check result from ha_rnd_init()
  Print error if ha_rnd_init() fails.
sql/sql_servers.cc:
  Check result from init_read_record()
sql/sql_table.cc:
  Check result from init_read_record()
sql/sql_udf.cc:
  Check result from init_read_record()
sql/sql_update.cc:
  Check result from init_read_record()
storage/example/ha_example.cc:
  Don't return error on rnd_init()
storage/ibmdb2i/ha_ibmdb2i.cc:
  Removed not relevant comment
2010-07-17 01:41:44 +03:00
Davi Arnaut
f56dd32bf7 Bug#34043: Server loops excessively in _checkchunk() when safemalloc is enabled
Essentially, the problem is that safemalloc is excruciatingly
slow as it checks all allocated blocks for overrun at each
memory management primitive, yielding a almost exponential
slowdown for the memory management functions (malloc, realloc,
free). The overrun check basically consists of verifying some
bytes of a block for certain magic keys, which catches some
simple forms of overrun. Another minor problem is violation
of aliasing rules and that its own internal list of blocks
is prone to corruption.

Another issue with safemalloc is rather the maintenance cost
as the tool has a significant impact on the server code.
Given the magnitude of memory debuggers available nowadays,
especially those that are provided with the platform malloc
implementation, maintenance of a in-house and largely obsolete
memory debugger becomes a burden that is not worth the effort
due to its slowness and lack of support for detecting more
common forms of heap corruption.

Since there are third-party tools that can provide the same
functionality at a lower or comparable performance cost, the
solution is to simply remove safemalloc. Third-party tools
can provide the same functionality at a lower or comparable
performance cost. 

The removal of safemalloc also allows a simplification of the
malloc wrappers, removing quite a bit of kludge: redefinition
of my_malloc, my_free and the removal of the unused second
argument of my_free. Since free() always check whether the
supplied pointer is null, redudant checks are also removed.

Also, this patch adds unit testing for my_malloc and moves
my_realloc implementation into the same file as the other
memory allocation primitives.

client/mysqldump.c:
  Pass my_free directly as its signature is compatible with the
  callback type -- which wasn't the case for free_table_ent.
2010-07-08 18:20:08 -03:00
Konstantin Osipov
cc6dabba37 Merge trunk-bugfixing -> trunk-runtime 2010-06-17 17:31:51 +04:00
Sergei Golubchik
97d610d69f --plugin_maturity command-line option 2010-06-16 19:01:22 +02:00
Sergei Golubchik
fdd62e53c2 bug in converting st_mysql_plugin to st_maria_plugin - all but the last plugin in a dl were lost 2010-06-16 09:52:12 +02:00
Konstantin Osipov
33c57e2f9e WL#5419 "LOCK_open scalability: make tdc_refresh_version
an atomic counter"

Split the large LOCK_open section in open_table(). 
Do not call open_table_from_share() under LOCK_open.
Remove thd->version.

This fixes
Bug#50589 "Server hang on a query evaluated using a temporary 
table"
Bug#51557 "LOCK_open and kernel_mutex are not happy together"
Bug#49463 "LOCK_table and innodb are not nice when handler 
instances are created".

This patch has effect on storage engines that rely on
ha_open() PSEA method being called under LOCK_open.
In particular:

1) NDB is broken and left unfixed. NDB relies on LOCK_open
being kept as part of ha_open(), since it uses auto-discovery.
While previously the NDB open code was race-prone, now
it simply fails on asserts.

2) HEAP engine had a race in ha_heap::open() when
a share for the same table could be added twice
to the list of shares, or a dangling reference to a share
stored in HEAP handler. This patch aims to address this
problem by 'pinning' the newly created share in the 
internal HEAP engine share list until at least one
handler instance is created using that share.


include/heap.h:
  Add members to HP_CREATE_INFO.
  Declare heap_release_share().
sql/lock.cc:
  Remove thd->version, use thd->open_tables->s->version instead.
sql/repl_failsafe.cc:
  Remove thd->version.
sql/sql_base.cc:
  - close_thread_table(): move handler cleanup code outside the critical section protected by LOCK_open.
  - remove thd->version
  - split the large critical section in open_table() that
  opens a new table from share and is protected by LOCK_open
  into 2 critical sections, thus reducing the critical path.
  - make check_if_table_exists() acquire LOCK_open internally.
  - use thd->open_tables->s->version instead of thd->refresh_version to make sure that all tables in
  thd->open_tables are in the same refresh series.
sql/sql_base.h:
  Add declaration for check_if_table_exists().
sql/sql_class.cc:
  Remove init_open_tables_state(), it's now equal to
  reset_open_tables_state().
sql/sql_class.h:
  Remove thd->version, THD::init_open_tables_state().
sql/sql_plugin.cc:
  Use table->m_needs_reopen to mark the table as stale
  rather than manipulate with thd->version, which is no more.
sql/sql_udf.cc:
  Use table->m_needs_reopen to mark the table as stale
  rather than manipulate with thd->version, which is no more.
sql/table.h:
  Remove an unused variable.
sql/tztime.cc:
  Use table->m_needs_reopen to mark the table as stale
  rather than manipulate with thd->version, which is no more.
storage/heap/CMakeLists.txt:
  Add heap tests to cmake build files.
storage/heap/ha_heap.cc:
  Fix a race when ha_heap::ha_open() could insert two 
  HP_SHARE objects into the internal share list or store
  a dangling reference to a share in ha_heap instance,
  or wrongly set implicit_emptied.
storage/heap/hp_create.c:
  Optionally pin a newly created share in the list of shares
  by increasing its open_count. This is necessary to 
  make sure that a newly created share doesn't disappear while
  a HP_INFO object is being created to reference it.
storage/heap/hp_open.c:
  When adding a new HP_INFO object to the list of objects
  in the heap share, make sure the open_count is not increased
  twice.
storage/heap/hp_test1.c:
  Adjust the test to new function signatures.
storage/heap/hp_test2.c:
  Adjust the test to new function signatures.
2010-06-11 19:28:18 +04:00
Davi Arnaut
db2fe44c84 Merge of mysql-5.1-bugteam into mysql-trunk-merge. 2010-06-10 22:30:49 -03:00
Davi Arnaut
6f3a540c37 Bug#42733: Type-punning warnings when compiling MySQL --
strict aliasing violations.

Essentially, the problem is that large parts of the server were
developed in simpler times (last decades, pre C99 standard) when
strict aliasing and compilers supporting such optimizations were
rare to non-existent. Thus, when compiling the server with a modern
compiler that uses strict aliasing rules to perform optimizations,
there are several places in the code that might trigger undefined
behavior.

As evinced by some recent bugs, GCC does a somewhat good of job
misoptimizing such code, but on the other hand also gives warnings
about suspicious code. One problem is that the warnings aren't
always accurate, yet we can't afford to just shut them off as we
might miss real cases. False-positive cases are aggravated mostly
by casts that are likely to trigger undefined behavior.

The solution is to start a cleanup process focused on fixing and
reducing the amount of strict-aliasing related warnings produced
by GCC and others compilers. A good deal of noise reduction can
be achieved by just removing useless casts that are product of
historical cruft and are likely to trigger undefined behavior if
dereferenced.

client/mysql.cc:
  Remove now-unnecessary casts.
  Break up large strings.
client/mysql_upgrade.c:
  Remove now-unnecessary casts.
client/mysqladmin.cc:
  Remove now-unnecessary casts.
  Break up large strings.
client/mysqlbinlog.cc:
  Remove now-unnecessary casts.
client/mysqlcheck.c:
  Remove now-unnecessary casts.
client/mysqldump.c:
  Remove now-unnecessary casts.
client/mysqlimport.c:
  Remove now-unnecessary casts.
client/mysqlshow.c:
  Remove now-unnecessary casts.
client/mysqlslap.c:
  Remove now-unnecessary casts.
client/mysqltest.cc:
  Remove now-unnecessary casts.
extra/comp_err.c:
  Remove now-unnecessary casts.
extra/my_print_defaults.c:
  Remove now-unnecessary casts.
  Break up large strings.
extra/mysql_waitpid.c:
  Remove now-unnecessary casts.
extra/perror.c:
  Remove now-unnecessary casts.
extra/resolve_stack_dump.c:
  Remove now-unnecessary casts.
extra/resolveip.c:
  Remove now-unnecessary casts.
include/my_getopt.h:
  Use a void pointer type as the opaque type to avoid problems with type
  incompatibility -- GCC issues warnings when the type name is not type
  compatible with a operand. As a side bonus, a explicit cast won't be
  necessary anymore.
include/sslopt-longopts.h:
  Remove now-unnecessary casts.
  Break up large strings.
mysys/my_getopt.c:
  Update opaque type and introduce a type definition for the
  argument to my_getopt_register_get_addr.
server-tools/instance-manager/options.cc:
  Remove now-unnecessary casts.
sql/mysqld.cc:
  Remove now-unnecessary casts.
  Break up large strings.
  Update mysql_getopt_value prototype (the old prototype
  was different from the definition anyway).
sql/sql_plugin.cc:
  The type of a pointer to a function must be compatible with the
  pointed-to function type, otherwise the behavior is undefined.
sql/table.cc:
  The variable buf pointer to pointer to pointer to constant char
  could improperly alias a incompatible type in call to fix_type_
  pointers. Since this was actually dead code, it is simply removed.
sql/unireg.cc:
  Remove call to get_form_pos. The code creates a new FRM file which
  is always truncated and writes the form position as 0. Hence, no
  need to retrieve it, we now for sure it is 0.
storage/archive/archive_reader.c:
  Remove now-unnecessary casts.
storage/myisam/ft_nlq_search.c:
  Read weight directly from the buffer.
storage/myisam/fulltext.h:
  Add explanation about the type duality of a key buffer.
  Add accessor macro to retrieve a FT float value.
storage/myisam/mi_test1.c:
  Remove now-unnecessary casts.
storage/myisam/myisam_ftdump.c:
  Read weight directly from the buffer.
storage/myisam/myisamchk.c:
  Remove now-unnecessary casts.
storage/myisam/myisamlog.c:
  A pointer to char was used to alias a pointer to pointer to
  unsigned char, thus violating strict aliasing rules.
storage/myisam/myisampack.c:
  Remove now-unnecessary casts.
strings/decimal.c:
  Remove aliasing violation, printing the value is enough for
  debugging purposes.
tests/mysql_client_test.c:
  Remove now-unnecessary casts.
2010-06-10 17:16:43 -03:00
Sergei Golubchik
ffc8f62b08 merge 5.1->5.2 2010-06-01 21:52:20 +02:00
Michael Widenius
4aa9d903c1 Merge with MySQL 5.1.47
Fixed some bugs introduced in 5.1.47
Disabled some tests until we have merged with latest Xtradb

configure.in:
  Added testing if valgrind/memcheck.h exists
storage/pbxt/src/ha_pbxt.cc:
  LOCK_plugin is not anymore locked in init
2010-05-26 21:55:40 +03:00
Alexey Kopytov
85ed11c60d Manual merge of mysql-5.1-bugteam to mysql-trunk-merge.
Conflicts:

Text conflict in configure.in
Text conflict in dbug/dbug.c
Text conflict in mysql-test/r/ps.result
Text conflict in mysql-test/t/ps.test
Text conflict in sql/CMakeLists.txt
Text conflict in sql/ha_ndbcluster.cc
Text conflict in sql/mysqld.cc
Text conflict in sql/sql_plugin.cc
Text conflict in sql/sql_table.cc
2010-04-30 00:33:06 +04:00
unknown
b1e00b6be8 Merge MySQL 5.1.46 into MariaDB.
Still two test failures to be solved: main.myisam and main.subselect.
2010-04-28 14:52:24 +02:00
Staale Smedseng
20c9177518 Bug#46261 Plugins can be installed with --skip-grant-tables
Previously installed dynamic plugins are explicitly not loaded
on startup with --skip-grant-tables enabled. However, INSTALL
PLUGIN/UNINSTALL PLUGIN commands are allowed, and result in
inconsistent error messages (reporting duplicate plugin or
plugin does not exist).

This patch adds a check for --skip-grant-tables mode, and
returns error ER_OPTION_PREVENTS_STATEMENT to the user when
the above commands are attempted.
2010-04-22 15:52:00 +02:00
Staale Smedseng
9743819d36 Bug#51591 deadlock in the plugins+status+variables
Potential deadlock situation involving LOCK_plugin,
LOCK_global_system_variables and LOCK_status.
      
This patch backports the fix from next-mr, unlocking
LOCK_plugin before calling plugin->init() and
add_status_vars().
2010-04-16 15:02:23 +02:00
Sergei Golubchik
cda2c0ced4 fixes for buildbot:
update test results
fix compilation failure on windows
fix for ps-protocol

mysql-test/r/plugin.result:
  make sure the PS handle is closed
mysql-test/t/plugin.test:
  make sure the PS handle is closed
sql/mysqld.cc:
  compilation failure: lable without a statement.
sql/sql_plugin.cc:
  make plugin lock and plugin unlock use the same format of the dbug info string.
  print the ref_count *after* the lock and *after* the unlock.
2010-04-08 19:19:01 +02:00
Michael Widenius
db1d83a5cc Merge with 5.1 2010-04-08 12:52:53 +03:00
Michael Widenius
a91e89dec6 Fixed compiler warning 2010-04-08 12:51:22 +03:00
Michael Widenius
1bee590347 Removed compiler warnings
Removed random failures from test suite

mysql-test/extra/rpl_tests/rpl_insert_id_pk.test:
  Make test predicatable.
mysql-test/include/maria_empty_logs.inc:
  We can't use 'Threads_connected' for syncronization, as the 'check_warnings' thread that just quit may still be counted in 'Threads_connected'
  Now we just wait until MySQLD answers again, which should be good enough for our purposes
mysql-test/suite/binlog/r/binlog_index.result:
  Updated results file
mysql-test/suite/binlog/t/binlog_index-master.opt:
  Added option file to not get stack traces in .err file.
mysql-test/suite/binlog/t/binlog_index.test:
  Added 'flush tables' to remove warning about crashed suppression file from logs
mysql-test/suite/pbxt/r/multi_statement.result:
  Updated results
mysql-test/suite/pbxt/t/multi_statement-master.opt:
  Added options so that slow query testing makes sense
sql/events.cc:
  Don't write Event Scheduler startup message if warnings are turned off.
sql/handler.cc:
  Removed compiler warning
sql/log.cc:
  Removed compiler warning
sql/mysqld.cc:
  Added option 'test-expect-abort'; If this is set, we don't write message to log in case of 'DBUG_ABORT'.
  (Gives us smaller, easier to read log files)
sql/set_var.cc:
  Removed compiler warning
sql/slave.cc:
  Removed compiler warning
sql/sql_plugin.cc:
  Don't write warnings about disabled plugin if using --log_warnings=0
storage/xtradb/include/ut0lst.h:
  Removed compiler warning
support-files/compiler_warnings.supp:
  Supress warning from xtradb
2010-04-07 01:47:08 +03:00
unknown
3dfa7cdd29 Fied problem with of compilation without dynamic plugin loading.
sql/sql_plugin.cc:
  Fixed #ifdef
2010-04-01 23:05:09 +03:00
unknown
20739646d7 Maria WL#61
Interface for maria extensions.
  Alternative plugin interface with additional info (maturity and string version).

CMakeLists.txt:
  Maria plugin interface used.
config/ac-macros/plugins.m4:
  Maria plugin interface used.
configure.in:
  Maria plugin interface used.
include/mysql/plugin.h:
  Maria plugin interface added.
include/mysql/plugin_auth.h.pp:
  Maria plugin interface added.
plugin/auth/auth_socket.c:
  Maria plugin interface added.
plugin/auth/dialog.c:
  Maria plugin interface added.
plugin/daemon_example/daemon_example.cc:
  Maria plugin interface added.
plugin/fulltext/plugin_example.c:
  Maria plugin interface added.
sql/ha_ndbcluster.cc:
  Maria plugin interface added.
sql/ha_partition.cc:
  Maria plugin interface added.
sql/log.cc:
  Maria plugin interface added.
sql/sql_acl.cc:
  Maria plugin interface added.
sql/sql_builtin.cc.in:
  Maria plugin interface used.
sql/sql_plugin.cc:
  Maria plugin interface added.
sql/sql_plugin.h:
  Maria plugin interface used.
sql/sql_show.cc:
  Maria plugin interface added.
storage/archive/ha_archive.cc:
  Maria plugin interface added.
storage/blackhole/ha_blackhole.cc:
  Maria plugin interface added.
storage/csv/ha_tina.cc:
  Maria plugin interface added.
storage/example/ha_example.cc:
  Maria plugin interface added.
storage/federated/ha_federated.cc:
  Maria plugin interface added.
storage/federatedx/ha_federatedx.cc:
  Maria plugin interface added.
storage/heap/ha_heap.cc:
  Maria plugin interface added.
storage/ibmdb2i/ha_ibmdb2i.cc:
  Maria plugin interface added.
storage/innobase/handler/ha_innodb.cc:
  Maria plugin interface added.
storage/innodb_plugin/handler/i_s.cc:
  Maria plugin interface added.
storage/maria/ha_maria.cc:
  Maria plugin interface added.
storage/myisam/ha_myisam.cc:
  Maria plugin interface added.
storage/myisammrg/ha_myisammrg.cc:
  Maria plugin interface added.
storage/pbxt/src/ha_pbxt.cc:
  Maria plugin interface added.
storage/xtradb/handler/ha_innodb.cc:
  Maria plugin interface added.
storage/xtradb/handler/i_s.cc:
  Maria plugin interface added.
storage/xtradb/handler/i_s.h:
  Maria plugin interface added.
2010-04-01 17:34:51 +03:00
Mats Kindahl
23d8586dbf WL#5030: Split and remove mysql_priv.h
This patch:

- Moves all definitions from the mysql_priv.h file into
  header files for the component where the variable is
  defined
- Creates header files if the component lacks one
- Eliminates all include directives from mysql_priv.h
- Eliminates all circular include cycles
- Rename time.cc to sql_time.cc
- Rename mysql_priv.h to sql_priv.h
2010-03-31 16:05:33 +02:00
Sergei Golubchik
291fd96983 pluggable auth with plugin examples
Makefile.am:
  add new API files to the check_abi rule,
  remove duplicates
client/CMakeLists.txt:
  now a client can use dlopen too
client/Makefile.am:
  be csh-friendly
include/my_global.h:
  add dummy plugs for dlopen and co.
  for the code that needs them to work in static builds
mysys/Makefile.am:
  be csh-friendly
plugin/auth/dialog.c:
  typo fixed
2010-03-29 17:13:53 +02:00
Alexey Kopytov
d95c1e3b47 Manual merge of mysql-trunk into mysql-trunk-merge.
Conflicts:

Text conflict in client/mysqlbinlog.cc
Text conflict in mysql-test/Makefile.am
Text conflict in mysql-test/collections/default.daily
Text conflict in mysql-test/r/mysqlbinlog_row_innodb.result
Text conflict in mysql-test/suite/rpl/r/rpl_typeconv_innodb.result
Text conflict in mysql-test/suite/rpl/t/rpl_get_master_version_and_clock.test
Text conflict in mysql-test/suite/rpl/t/rpl_row_create_table.test
Text conflict in mysql-test/suite/rpl/t/rpl_slave_skip.test
Text conflict in mysql-test/suite/rpl/t/rpl_typeconv_innodb.test
Text conflict in mysys/charset.c
Text conflict in sql/field.cc
Text conflict in sql/field.h
Text conflict in sql/item.h
Text conflict in sql/item_func.cc
Text conflict in sql/log.cc
Text conflict in sql/log_event.cc
Text conflict in sql/log_event_old.cc
Text conflict in sql/mysqld.cc
Text conflict in sql/rpl_utility.cc
Text conflict in sql/rpl_utility.h
Text conflict in sql/set_var.cc
Text conflict in sql/share/Makefile.am
Text conflict in sql/sql_delete.cc
Text conflict in sql/sql_plugin.cc
Text conflict in sql/sql_select.cc
Text conflict in sql/sql_table.cc
Text conflict in storage/example/ha_example.h
Text conflict in storage/federated/ha_federated.cc
Text conflict in storage/myisammrg/ha_myisammrg.cc
Text conflict in storage/myisammrg/myrg_open.c
2010-03-24 18:03:44 +03:00
Alexey Kopytov
5d407d0c1a Manual merge of mysql-5.1-bugteam to mysql-trunk-merge.
Conflicts:

Text conflict in mysql-test/r/partition_innodb.result
Text conflict in sql/field.h
Text conflict in sql/item.h
Text conflict in sql/item_cmpfunc.h
Text conflict in sql/item_sum.h
Text conflict in sql/log_event_old.cc
Text conflict in sql/protocol.cc
Text conflict in sql/sql_select.cc
Text conflict in sql/sql_yacc.yy
2010-03-20 23:23:42 +03:00
Sergei Golubchik
71b3e46b01 1. don't crash on failing to load a plugin with newer MYSQL_PLUGIN_INTERFACE_VERSION
2. don't copy st_mysql_plugin structure unnecessary (sizeof hasn't changed)
2010-03-12 20:05:21 +01:00
unknown
214edde888 Automerge MySQL 5.1.44 merge into MariaDB trunk. 2010-03-09 20:23:30 +01:00
Davi Arnaut
81ffd72a58 Bug#51770: UNINSTALL PLUGIN requires no privileges
The problem was that UNINSTALL PLUGIN wasn't performing privilege
checks before removing a plugin. Any user (including users without 
any kind of privileges) could uninstall any plugin.

The solution is to verify if the user has the DELETE privilege for
the mysql.plugin table before uninstalling a plugin.

mysql-test/r/plugin_not_embedded.result:
  Add test case result for Bug#51770.
mysql-test/t/plugin_not_embedded-master.opt:
  Add example plugin path.
mysql-test/t/plugin_not_embedded.test:
  Add test case for Bug#51770.
  Skip embedded as test relies on privileges checks.
2010-03-09 09:16:17 -03:00
Sergei Golubchik
700e2155f2 do not take LOCK_plugin for built-in plugins 2010-03-08 18:05:09 +01:00
Sergei Golubchik
f0cf48a0c4 small code cleanup - "good ifdef is no ifdef" 2010-03-08 14:57:32 +01:00