| Commit message (Collapse) | Author | Age | Files | Lines |
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* Update wrong zip-code
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don't use C11 atomics unless HAVE_GCC_C11_ATOMICS is defined
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Clean-up nolock.h: it doesn't serve any purpose anymore. Appropriate code moved
to x86-gcc.h and my_atomic.h.
If gcc sync bultins were detected, we want to make use of them independently of
__GNUC__ definition. E.g. XLC simulates those, but doesn't define __GNUC__.
HS/Spider: According to AIX manual alloca() returns char*, which cannot be
casted to any type with static_cast. Use explicit cast instead.
MDL: Removed namemangling pragma, which didn't let MariaDB build with XLC.
WSREP: _int64 seem to be conflicting name with XLC, replaced with _integer64.
CONNECT: RTLD_NOLOAD is GNU extention. Removed rather meaningless check if
library is loaded. Multiple dlopen()'s of the same library are permitted,
and it never gets closed anyway. Except for error, which was a bug: it may
close library, which can still be referenced by other subsystems.
InnoDB: __ppc_get_timebase() is GNU extention. Only use it when __GLIBC__ is
defined.
Based on contribution by flynn1973.
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Replaced InnoDB atomic operations with server atomic operations.
Moved INNODB_RW_LOCKS_USE_ATOMICS - it is always defined (code won't compile
otherwise).
NOTE: InnoDB uses thread identifiers as a target for atomic operations.
Thread identifiers should be considered opaque: any attempt to use a
thread ID other than in pthreads calls is nonportable and can lead to
unspecified results.
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Creating a CONNECT object on client connect and pass this to the working thread which creates the THD.
Split LOCK_thread_count to different mutexes
Added LOCK_thread_start to syncronize threads
Moved most usage of LOCK_thread_count to dedicated functions
Use next_thread_id() instead of thread_id++
Other things:
- Thread id now starts from 1 instead of 2
- Added cast for thread_id as thread id is now of type my_thread_id
- Made THD->host const (To ensure it's not changed)
- Removed some DBUG_PRINT() about entering/exiting mutex as these was already logged by mutex code
- Fixed that aborted_connects and connection_errors_internal are counted in all cases
- Don't take locks for current_linfo when we set it (not needed as it was 0 before)
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Added API for atomic operations with explicit memory barrier. Only gcc
atomic builtins are currently supported. If they're unavailable, fall
back to atomic operations with implicit full memory barrier.
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The atomic operations implementation on 5.1 has a few problems,
which might cause tests to abort randomly. Since no code in 5.1
uses atomic operations, simply remove the code.
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checkpoint.
does not compile.
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Solaris 10 Sparc 64bit.
include/my_atomic.h:
Prototypes in the non-inline (extern) case were wrong: they were
missing "U_a" i.e. "volatile *". Caused a segfault in my_atomic-t
on Solaris10 Sparc 64.
storage/maria/ma_loghandler.c:
Move "buffer" array up in the struct, to get it aligned on long-boundary
so that page cache can use bmove512() (it was not aligned and bmove512()
was used, causing SIGBUS on Solaris10 Sparc 64).
storage/maria/unittest/ma_pagecache_consist.c:
doing *(uint*)(charbuff)=something is not ok on sparc machines, we must
use int4store/uint4korr. Fixes a SIGBUS on Solaris10 Sparc 64.
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-new option WITH_MARIA_STORAGE_ENGINE for config.js
-correct build errors
-build test executables
-downport changes for atomic functions from 5.2
-remove LOCK_uuid_generator from C++ files to avoid linker errors
-new function my_uuid2str()
BitKeeper/deleted/.del-x86-msvc.h:
Delete: include/atomic/x86-msvc.h
CMakeLists.txt:
Windows fixes:
-New option WITH_MARIA_STORAGE_ENGINE
-Add unit tests
include/Makefile.am:
replace x86-msvc.h with generic-msvc.h
include/config-win.h:
my_chmod() support
include/my_atomic.h:
Downport my_atomic from 5.2 tree
include/my_bit.h:
Correct unresolved symbol errors on Windows
include/my_pthread.h:
pthread_mutex_unlock now returns 0 (was void previously)
defined PTHREAD_STACK_MIN
include/my_sys.h:
New function my_uuid2str()
define MY_UUID_STRING_LENGTH
include/atomic/nolock.h:
Downport my_atomic from 5.2 tree
libmysqld/CMakeLists.txt:
New option WITH_MARIA_STORAGE_ENGINE
mysys/CMakeLists.txt:
Add missing files
mysys/lf_dynarray.c:
Fix compiler errors on Windows
mysys/my_getncpus.c:
Windows port
mysys/my_uuid.c:
Windows fixes: there is no random() on Windows, use ANSI rand()
New function my_uuid2str()
mysys/my_winthread.c:
Downport from 5.2 tree
-Call my_thread_end() before pthread_exit()
-Avoid crash if pthread_create is called with NULL attributes
sql/CMakeLists.txt:
Link mysqld with Maria storage engine
sql/item_func.cc:
Remove LOCK_uuid_generator from C++ to avoid linker errors.
Use dedicated mutex for short uuids
sql/item_strfunc.cc:
Use my_uuid() and my_uuid2str() functions from mysys.
sql/item_strfunc.h:
Define MY_UUID_STRING_LENGTH in my_sys.h
sql/mysql_priv.h:
LOCK_uuid_generator must be declared as extern "C"
sql/mysqld.cc:
Init and destroy LOCK_uuid_short mutex
storage/maria/CMakeLists.txt:
-Use the same source files as in Makefile.am
-Build test binaries
storage/maria/ha_maria.cc:
snprintf->my_snprintf
storage/maria/lockman.c:
Fix compiler error on Windows
storage/maria/ma_check.c:
Fix compiler error on Windows
storage/maria/ma_loghandler.c:
Fix compile errors
my_open()/my_sync() do not work for directories on Windows
storage/maria/ma_recovery.c:
Fix compile error on Windows
storage/maria/ma_test2.c:
Rename variable to avoid naming conflict with Microsoft C runtime
function
storage/maria/ma_test3.c:
Fix build errors on Windows
storage/maria/tablockman.c:
Fix build errors on Windows
storage/maria/unittest/Makefile.am:
Add CMakeLists.txt
storage/maria/unittest/ma_pagecache_consist.c:
Fix build errors on Windows
remove loop from get_len()
storage/maria/unittest/ma_pagecache_single.c:
Fix build errors on Windows
storage/maria/unittest/ma_test_loghandler-t.c:
Windows fixes
-Avoid division by 0 in expressions like
x/(RAND_MAX/y), where y is larger than RAND_MAX(==0x7fff on Windows)
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
Windows fixes
-Avoid division by 0 in expressions like
x/(RAND_MAX/y), where y is larger than RAND_MAX(==0x7fff on Windows)
-remove loop in get_len()
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
Windows fixes
-Avoid division by 0 in expressions like
x/(RAND_MAX/y), where y is larger than RAND_MAX(==0x7fff on Windows)
-remove loop in get_len()
storage/maria/unittest/ma_test_loghandler_noflush-t.c:
Fix build errors on Windows
storage/maria/unittest/test_file.c:
Correct the code to get file size on Windows.
stat() information can be outdated and thus cannot be trusted.
On Vista,stat() returns file size=0 until the file is closed at the
first time.
storage/myisam/CMakeLists.txt:
Fix compiler errors on Windows
Build test executables
storage/myisam/mi_test2.c:
Rename variable to avoid naming conflict with Microsoft C runtime
function
storage/myisam/mi_test3.c:
Fix build errors on Windows
strings/CMakeLists.txt:
Add missing file
unittest/unit.pl:
Windows:
downport unittest changes from 5.2 bk tree
unittest/mysys/Makefile.am:
Windows:
downport unittest changes from 5.2 bk tree
unittest/mysys/my_atomic-t.c:
Windows:
downport unittest changes from 5.2 bk tree
unittest/mytap/Makefile.am:
Windows:
downport unittest changes from 5.2 bk tree
unittest/mytap/tap.c:
Windows:
downport unittest changes from 5.2 bk tree
win/configure.js:
Add WITH_MARIA_STORAGE_ENGINE configure option
unittest/mytap/CMakeLists.txt:
Add missing file
unittest/mysys/CMakeLists.txt:
Add missing file
storage/maria/unittest/CMakeLists.txt:
Add missing file
BitKeeper/etc/ignore:
Added comments maria-win.patch to the ignore list
include/atomic/generic-msvc.h:
Implement atomic operations with MSVC intrinsics
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include/my_atomic.h:
transparent_union doesn't work in g++, doesn't work on darwin/ppc64
storage/maria/ma_blockrec.c:
compiler warning
storage/maria/ma_loghandler.c:
compiler warning
storage/maria/ma_page.c:
compiler warning
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Added logging and pinning of pages to block format.
Integration of transaction manager, log handler.
Better page cache intergration
Split trnman.h into two files, so that we don't have to include my_atomic.h into C++ programs.
Renaming of structures, more comments, more debugging etc.
Fixed problem with small head block + long varchar.
Added extra argument to delete_record() and update_record() (needed for UNDO logging)
Small changes to interface of pagecache and log handler.
Change initialization of log_record_type_descriptors to not be depending on enum order.
Use array of LEX_STRING's to send data to log handler
Added 'dummy' transaction option to MARIA_INFO so that we can always assume 'trn' exists.
include/lf.h:
Interface fixes
Rename of structures
(Patch from Sergei via Sanja)
include/my_atomic.h:
More comments
include/my_global.h:
Added MY_ERRPTR
include/pagecache.h:
Added undo LSN when unlocking pages
mysql-test/r/maria.result:
Updated results
mysql-test/t/maria.test:
Added autocommit around lock tables
(Patch from Sanja)
mysys/lf_alloc-pin.c:
Post-review fixes, simple optimizations
More comments
Struct slot renames
Check amount of memory on stack
(Patch from Sergei)
mysys/lf_dynarray.c:
More comments
mysys/lf_hash.c:
More comments
After review fixes
(Patch from Sergei)
storage/maria/ha_maria.cc:
Split trnman.h into two files, so that we don't have to include my_atomic.h into the .cc program.
(Temporary fix to avoid bug in gcc)
Move out all deferencing of the transaction structure.
Transaction manager integrated (Patch from Sergei)
storage/maria/ha_maria.h:
Added prototype for start_stmt()
storage/maria/lockman.c:
Function call rename
storage/maria/ma_bitmap.c:
Mark deleted pages free from page cache
storage/maria/ma_blockrec.c:
Offset -> rownr
More debugging
Fixed problem with small head block + long varchar
Added logging of changed pages
Added logging of undo (Including only loggging of changed fields in case of update)
Added pinning/unpinning of all changed pages
More comments
Added free_full_pages() as the same code was used in several places.
fill_rows_parts() renamed as fill_insert_undo_parts()
offset -> rownr
Added some optimization of not transactional tables
_ma_update_block_record() has new parameter, as we need original row to do efficent undo for update
storage/maria/ma_blockrec.h:
Added ROW_EXTENTS_ON_STACK
Changed prototype for update and delete of row
storage/maria/ma_check.c:
Added original row to delete_record() call
storage/maria/ma_control_file.h:
Added ifdefs for C++
storage/maria/ma_delete.c:
Added original row to delete_record() call
(Needed for efficent undo logging)
storage/maria/ma_dynrec.c:
Added extra argument to delete_record() and update_record()
Removed not used variable
storage/maria/ma_init.c:
Initialize log handler
storage/maria/ma_loghandler.c:
Removed not used variable
Change initialization of log_record_type_descriptors to not be depending on enum order
Use array of LEX_STRING's to send data to log handler
storage/maria/ma_loghandler.h:
New defines
Use array of LEX_STRING's to send data to log handler
storage/maria/ma_open.c:
Added 'dummy' transaction option to MARIA_INFO so that we can always assume 'trn' exists.
Store in MARIA_SHARE->page_type if pages will have up to date LSN's
storage/maria/ma_pagecache.c:
Don't decrease number of readers when using pagecache_write()/pagecache_read()
In pagecache_write() decrement request count if page was left pinned
Added pagecache_delete_pages()
Removed some casts
Make trace output consistent with rest of code
Simplify calling of DBUG_ASSERT(0)
Only update LSN if the LSN is bigger than what's already on the page
Added LSN parameter pagecache_unpin_page(), pagecache_unpin(), and pagecache_unlock()
(Part of patch from Sanja)
storage/maria/ma_static.c:
Added 'dummy' transaction option to MARIA_INFO so that we can always assume 'trn' exists.
Added default page cache
storage/maria/ma_statrec.c:
Added extra argument to delete_record() and update_record()
storage/maria/ma_test1.c:
Added option -T for transactions
storage/maria/ma_test2.c:
Added option -T for transactions
storage/maria/ma_test_all.sh:
Test with transactions
storage/maria/ma_update.c:
Changed prototype for update of row
storage/maria/maria_def.h:
Changed prototype for update & delete of row as block records need to access the old row
Store in MARIA_SHARE->page_type if pages will have up to date LSN's
Added MARIA_MAX_TREE_LEVELS to allow us to calculate the number of possible pinned pages we may need.
Removed not used 'empty_bits_buffer'
Added pointer to transaction object
Added array for pinned pages
Added log_row_parts array for logging of field data.
Added MARIA_PINNED_PAGE to store pinned pages
storage/maria/trnman.c:
Added accessor functions to transaction object
Added missing DBUG_RETURN()
More debugging
More comments
Changed // comment of code to #ifdef NOT_USED
Transaction manager integrated.
Post review fixes
Part of patch originally from Sergei
storage/maria/trnman.h:
Split trnman.h into two files, so that we don't have to include my_atomic.h into the .cc program.
(Temporary fix to avoid bug in gcc)
storage/maria/unittest/ma_pagecache_single.c:
Added missing argument
Added SKIP_BIG_TESTS
(Patch from Sanja)
storage/maria/unittest/ma_test_loghandler-t.c:
Test logging with new LEX_STRING parameter
(Patch from Sanja)
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
Test logging with new LEX_STRING parameter
(Patch from Sanja)
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
Test logging with new LEX_STRING parameter
(Patch from Sanja)
storage/maria/unittest/ma_test_loghandler_pagecache-t.c:
Test logging with new LEX_STRING parameter
(Patch from Sanja)
storage/maria/unittest/trnman-t.c:
Stack overflow detection
(Patch from Sergei)
unittest/unit.pl:
Command-line options --big and --verbose
(Patch from Sergei)
unittest/mytap/tap.c:
Detect --big
(Patch from Sergei)
unittest/mytap/tap.h:
Skip_big_tests and SKIP_BIG_TESTS
(Patch from Sergei)
storage/maria/trnman_public.h:
New BitKeeper file ``storage/maria/trnman_public.h''
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into gbichot3.local:/home/mysql_src/mysql-maria
BitKeeper/etc/ignore:
auto-union
BUILD/SETUP.sh:
Auto merged
client/mysqldump.c:
Auto merged
config/ac-macros/plugins.m4:
Auto merged
configure.in:
Auto merged
include/Makefile.am:
Auto merged
include/atomic/nolock.h:
Auto merged
include/atomic/rwlock.h:
Auto merged
include/atomic/x86-gcc.h:
Auto merged
include/atomic/x86-msvc.h:
Auto merged
include/ft_global.h:
Auto merged
include/keycache.h:
Auto merged
include/m_string.h:
Auto merged
include/my_atomic.h:
Auto merged
include/my_base.h:
Auto merged
include/my_dbug.h:
Auto merged
include/my_global.h:
Auto merged
include/my_handler.h:
Auto merged
include/my_sys.h:
Auto merged
include/myisam.h:
Auto merged
libmysql/CMakeLists.txt:
Auto merged
libmysqld/Makefile.am:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/events_logs_tests.result:
Auto merged
mysql-test/t/events_logs_tests.test:
Auto merged
mysys/Makefile.am:
Auto merged
mysys/array.c:
Auto merged
mysys/mf_keycache.c:
Auto merged
mysys/mf_keycaches.c:
Auto merged
mysys/my_atomic.c:
Auto merged
mysys/my_bit.c:
Auto merged
mysys/my_bitmap.c:
Auto merged
mysys/my_create.c:
Auto merged
mysys/my_delete.c:
Auto merged
mysys/my_getsystime.c:
Auto merged
mysys/my_handler.c:
Auto merged
mysys/my_init.c:
Auto merged
mysys/my_open.c:
Auto merged
mysys/my_pread.c:
Auto merged
mysys/my_rename.c:
Auto merged
mysys/my_symlink.c:
Auto merged
mysys/my_sync.c:
Auto merged
plugin/daemon_example/daemon_example.cc:
Auto merged
sql/Makefile.am:
Auto merged
sql/filesort.cc:
Auto merged
sql/gen_lex_hash.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/log.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.h:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_sort.h:
Auto merged
sql/sql_test.cc:
Auto merged
sql/uniques.cc:
Auto merged
sql/unireg.cc:
Auto merged
storage/Makefile.am:
Auto merged
storage/csv/ha_tina.cc:
Auto merged
storage/myisam/Makefile.am:
Auto merged
storage/myisam/ft_boolean_search.c:
Auto merged
storage/myisam/ft_nlq_search.c:
Auto merged
storage/myisam/ft_parser.c:
Auto merged
storage/myisam/ft_static.c:
Auto merged
storage/myisam/ft_stopwords.c:
Auto merged
storage/myisam/ft_update.c:
Auto merged
storage/myisam/fulltext.h:
Auto merged
storage/myisam/ha_myisam.h:
Auto merged
storage/myisam/mi_check.c:
Auto merged
storage/myisam/mi_create.c:
Auto merged
storage/myisam/mi_delete.c:
Auto merged
storage/myisam/mi_delete_all.c:
Auto merged
storage/myisam/mi_dynrec.c:
Auto merged
storage/myisam/mi_key.c:
Auto merged
storage/myisam/mi_log.c:
Auto merged
storage/myisam/mi_open.c:
Auto merged
storage/myisam/mi_packrec.c:
Auto merged
storage/myisam/mi_range.c:
Auto merged
storage/myisam/mi_rsamepos.c:
Auto merged
storage/myisam/mi_search.c:
Auto merged
storage/myisam/mi_test1.c:
Auto merged
storage/myisam/mi_test2.c:
Auto merged
storage/myisam/mi_unique.c:
Auto merged
storage/myisam/mi_update.c:
Auto merged
storage/myisam/mi_write.c:
Auto merged
storage/myisam/myisamchk.c:
Auto merged
storage/myisam/myisamlog.c:
Auto merged
storage/myisam/myisampack.c:
Auto merged
storage/myisam/rt_index.c:
Auto merged
storage/myisam/sort.c:
Auto merged
storage/myisammrg/ha_myisammrg.h:
Auto merged
unittest/mytap/tap.c:
Auto merged
mysql-test/r/view.result:
manual merge
mysql-test/t/view.test:
manual merge
Makefile.am:
manual merge
mysql-test/t/disabled.def:
manual merge
sql/mysqld.cc:
manual merge
sql/set_var.cc:
manual merge
sql/udf_example.c:
manual merge
storage/myisam/ha_myisam.cc:
manual merge
storage/myisam/myisamdef.h:
manual merge
storage/ndb/src/mgmapi/mgmapi.cpp:
manual merge
unittest/Makefile.am:
manual merge
unittest/mysys/Makefile.am:
manual merge
unittest/mysys/my_atomic-t.c:
manual merge
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unittest/mysys/my_atomic-t.c:
try both signed and unsigned arguments for atomic ops
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tablockman: fixed a bug in finding a blocker lock
mysys/my_getsystime.c:
this is no longer true
storage/maria/lockman.h:
post-review fixes
storage/maria/tablockman.h:
post-review fixes
storage/maria/unittest/lockman-t.c:
post-review fixes
storage/maria/unittest/lockman1-t.c:
post-review fixes
storage/maria/unittest/lockman2-t.c:
post-review fixes
include/my_atomic.h:
moved intptr definition to my_global.h
storage/maria/tablockman.c:
post-review fixes
BUILD/SETUP.sh:
add -DMY_LF_EXTRA_DEBUG to debug builds
include/atomic/nolock.h:
suppress warning
include/my_global.h:
suppress warning
mysys/lf_alloc-pin.c:
post-review fixes
mysys/lf_dynarray.c:
post-review fixes
mysys/lf_hash.c:
post-review fixes
storage/maria/trnman.c:
suppress warning
include/lf.h:
post-review fix
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include/my_atomic.h:
comment
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(lockmanager still fails unit tests)
BitKeeper/deleted/.del-Makefile.am~4375ae3d4de2bdf0:
Delete: unittest/maria/Makefile.am
configure.in:
silence up configure warnings, don't generate unittest/maria/Makefile
include/atomic/nolock.h:
s/LOCK/LOCK_prefix/
include/atomic/x86-gcc.h:
s/LOCK/LOCK_prefix/
include/atomic/x86-msvc.h:
s/LOCK/LOCK_prefix/
include/lf.h:
pin asserts, renames
include/my_atomic.h:
move cleanup
include/my_bit.h:
s/uint/uint32/
mysys/lf_dynarray.c:
style fixes, split for() in two, remove if()s
mysys/lf_hash.c:
renames, minor fixes
mysys/my_atomic.c:
run-time assert -> compile-time assert
storage/maria/Makefile.am:
lockman here
storage/maria/unittest/Makefile.am:
new unit tests
storage/maria/unittest/trnman-t.c:
lots of changes
storage/maria/lockman.c:
many changes:
second meaning of "blocker"
portability: s/gettimeofday/my_getsystime/
move mutex/cond out of LOCK_OWNER - it creates a race condition
that will be fixed in a separate changeset
increment lm->count for every element, not only for distinct ones -
because we cannot decrease it for distinct elements only :(
storage/maria/lockman.h:
move mutex/cond out of LOCK_OWNER
storage/maria/trnman.c:
move mutex/cond out of LOCK_OWNER
atomic-ops to access short_trid_to_trn[]
storage/maria/trnman.h:
move mutex/cond out of LOCK_OWNER
storage/maria/unittest/lockman-t.c:
unit stress test
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lock-free alloc (WL#3229), lock-free hash (WL#3230)
bit functions made inline
include/Makefile.am:
lf.h added
mysys/Makefile.am:
lf_hash.c lf_dynarray.c lf_alloc-pin.c
include/atomic/nolock.h:
amd64 atomic ops
include/atomic/rwlock.h:
s/rw_lock/mutex/g
include/atomic/x86-gcc.h:
amd64 atomic ops
try PAUSE
include/my_global.h:
STATIC_INLINE
mysys/mf_keycache.c:
make bit functions inline
mysys/my_atomic.c:
STATIC_INLINE
mysys/my_bitmap.c:
make bit functions inline
sql/ha_myisam.cc:
make bit functions inline
sql/item_func.cc:
make bit functions inline
include/my_atomic.h:
STATIC_INLINE
mysys/my_bit.c:
make bit functions inline
sql/sql_select.cc:
make bit functions inline
storage/myisam/mi_create.c:
make bit functions inline
storage/myisam/mi_test2.c:
make bit functions inline
storage/myisam/myisamchk.c:
make bit functions inline
mysys/my_init.c:
thread_size moved to mysys
sql/mysql_priv.h:
thread_size moved to mysys
sql/set_var.cc:
thread_size moved to mysys
include/my_sys.h:
thread_size moved to mysys
sql/mysqld.cc:
thread_size moved to mysys
sql/sql_parse.cc:
thread_size moved to mysys
sql/sql_test.cc:
thread_size moved to mysys
include/lf.h:
dylf_dynarray refactored to remove 65536 elements limit
mysys/lf_alloc-pin.c:
dylf_dynarray refactored to remove 65536 elements limit
mysys/lf_dynarray.c:
dylf_dynarray refactored to remove 65536 elements limit
mysys/lf_hash.c:
dylf_dynarray refactored to remove 65536 elements limit
unittest/mysys/my_atomic-t.c:
fix to commit (remove debug code)
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Remove wrappers around inline -- static inline is used without
wrappers throughout the source code. We rely on the compiler or
linker to eliminate unused static functions.
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Bug#52261: 64 bit atomic operations do not work on Solaris i386
gcc in debug compilation
One of the various problems was that the source operand to
CMPXCHG8b was marked as a input/output operand, causing GCC
to use the EBX register as the destination register for the
CMPXCHG8b instruction. This could lead to crashes as the EBX
register is also implicitly used by the instruction, causing
the value to be potentially garbaged and a protection fault
once the value is used to access a position in memory.
Another problem was the lack of proper clobbers for the atomic
operations and, also, a discrepancy between the implementations
for the Compare and Set operation. The specific problems are
described and fixed by Kristian Nielsen patches:
Patch: 1
Fix bugs in my_atomic_cas*(val,cmp,new) that *cmp is accessed
after CAS succeds.
In the gcc builtin implementation, problem was that *cmp was
read again after atomic CAS to check if old *val == *cmp;
this fails if CAS is successful and another thread modifies
*cmp in-between.
In the x86-gcc implementation, problem was that *cmp was set
also in the case of successful CAS; this means there is a
window where it can clobber a value written by another thread
after successful CAS.
Patch 2:
Add a GCC asm "memory" clobber to primitives that imply a
memory barrier.
This signifies to GCC that any potentially aliased memory
must be flushed before the operation, and re-read after the
operation, so that read or modification in other threads of
such memory values will work as intended.
In effect, it makes these primitives work as memory barriers
for the compiler as well as the CPU. This is better and more
correct than adding "volatile" to variables.
include/atomic/gcc_builtins.h:
Do not read from *cmp after the operation as it might be
already gone if the operation was successful.
include/atomic/nolock.h:
Prefer system provided atomics over the broken x86 asm.
include/atomic/x86-gcc.h:
Do not mark source operands as input/output operands.
Add proper memory clobbers.
include/my_atomic.h:
Add notes about my_atomic_add and my_atomic_cas behaviors.
unittest/mysys/my_atomic-t.c:
Remove work around, if it fails, there is either a problem
with the atomic operations code or the specific compiler
version should be black-listed.
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include/atomic/x86-gcc.h:
Fix a warning about empty while loop body.
include/my_atomic.h:
Fix a warning about empty while loop body.
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remove duplicated boilerplate code
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operations
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to enable removal of LOCK_thread_count from every query, removed LOCK_thread_count from use in dispatch_command and close of query which is used in every query, now uses atomic increments/decrements instead
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places where LOCK_thread_count previously was used
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include/my_atomic.h:
To avoid compiler problems on some platforms, static inline
should be a macro here.
include/my_bit.h:
To avoid compiler problems on windows and solaris
mysys/my_create.c:
To avoid compiler problems on windows.
mysys/my_delete.c:
To avoid compiler problems on windows.
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Changed header to GPL version 2 only
client/mysqlslap.c:
Changed header to GPL version 2 only
include/atomic/nolock.h:
Changed header to GPL version 2 only
include/atomic/rwlock.h:
Changed header to GPL version 2 only
include/atomic/x86-gcc.h:
Changed header to GPL version 2 only
include/atomic/x86-msvc.h:
Changed header to GPL version 2 only
include/my_atomic.h:
Changed header to GPL version 2 only
include/my_trie.h:
Changed header to GPL version 2 only
include/my_vle.h:
Changed header to GPL version 2 only
include/mysql/plugin.h:
Changed header to GPL version 2 only
mysys/my_atomic.c:
Changed header to GPL version 2 only
mysys/my_getncpus.c:
Changed header to GPL version 2 only
mysys/my_memmem.c:
Changed header to GPL version 2 only
mysys/my_vle.c:
Changed header to GPL version 2 only
mysys/trie.c:
Changed header to GPL version 2 only
plugin/Makefile.am:
Changed header to GPL version 2 only
server-tools/instance-manager/IMService.h:
Changed header to GPL version 2 only
server-tools/instance-manager/WindowsService.h:
Changed header to GPL version 2 only
server-tools/instance-manager/exit_codes.h:
Changed header to GPL version 2 only
server-tools/instance-manager/user_management_commands.h:
Changed header to GPL version 2 only
sql/authors.h:
Changed header to GPL version 2 only
sql/contributors.h:
Changed header to GPL version 2 only
sql/event_data_objects.cc:
Changed header to GPL version 2 only
sql/event_data_objects.h:
Changed header to GPL version 2 only
sql/event_db_repository.cc:
Changed header to GPL version 2 only
sql/event_db_repository.h:
Changed header to GPL version 2 only
sql/event_queue.cc:
Changed header to GPL version 2 only
sql/event_queue.h:
Changed header to GPL version 2 only
sql/event_scheduler.cc:
Changed header to GPL version 2 only
sql/event_scheduler.h:
Changed header to GPL version 2 only
sql/events.cc:
Changed header to GPL version 2 only
sql/events.h:
Changed header to GPL version 2 only
sql/ha_ndbcluster_binlog.cc:
Changed header to GPL version 2 only
sql/ha_ndbcluster_binlog.h:
Changed header to GPL version 2 only
sql/ha_ndbcluster_tables.h:
Changed header to GPL version 2 only
sql/ha_partition.cc:
Changed header to GPL version 2 only
sql/ha_partition.h:
Changed header to GPL version 2 only
sql/item_xmlfunc.cc:
Changed header to GPL version 2 only
sql/item_xmlfunc.h:
Changed header to GPL version 2 only
sql/log.h:
Changed header to GPL version 2 only
sql/partition_element.h:
Changed header to GPL version 2 only
sql/partition_info.cc:
Changed header to GPL version 2 only
sql/partition_info.h:
Changed header to GPL version 2 only
sql/rpl_filter.cc:
Changed header to GPL version 2 only
sql/rpl_filter.h:
Changed header to GPL version 2 only
sql/rpl_injector.cc:
Changed header to GPL version 2 only
sql/rpl_injector.h:
Changed header to GPL version 2 only
sql/rpl_mi.cc:
Changed header to GPL version 2 only
sql/rpl_mi.h:
Changed header to GPL version 2 only
sql/rpl_rli.cc:
Changed header to GPL version 2 only
sql/rpl_rli.h:
Changed header to GPL version 2 only
sql/rpl_tblmap.cc:
Changed header to GPL version 2 only
sql/rpl_tblmap.h:
Changed header to GPL version 2 only
sql/rpl_utility.cc:
Changed header to GPL version 2 only
sql/rpl_utility.h:
Changed header to GPL version 2 only
sql/sql_binlog.cc:
Changed header to GPL version 2 only
sql/sql_partition.cc:
Changed header to GPL version 2 only
sql/sql_partition.h:
Changed header to GPL version 2 only
sql/sql_plugin.cc:
Changed header to GPL version 2 only
sql/sql_plugin.h:
Changed header to GPL version 2 only
sql/sql_servers.cc:
Changed header to GPL version 2 only
sql/sql_servers.h:
Changed header to GPL version 2 only
sql/sql_tablespace.cc:
Changed header to GPL version 2 only
sql/sql_yacc.yy.bak:
Changed header to GPL version 2 only
storage/Makefile.am:
Changed header to GPL version 2 only
storage/archive/Makefile.am:
Changed header to GPL version 2 only
storage/blackhole/Makefile.am:
Changed header to GPL version 2 only
storage/csv/Makefile.am:
Changed header to GPL version 2 only
storage/example/Makefile.am:
Changed header to GPL version 2 only
storage/federated/Makefile.am:
Changed header to GPL version 2 only
storage/innobase/handler/Makefile.am:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/AllocNodeId.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/CreateFilegroup.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/CreateFilegroupImpl.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/CreateObj.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/DictObjOp.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/DihFragCount.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/DropFilegroup.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/DropFilegroupImpl.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/DropObj.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/Extent.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/LgmanContinueB.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/PgmanContinueB.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/RestoreContinueB.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/RestoreImpl.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/RouteOrd.hpp:
Changed header to GPL version 2 only
storage/ndb/include/kernel/signaldata/TsmanContinueB.hpp:
Changed header to GPL version 2 only
storage/ndb/include/ndbapi/NdbIndexStat.hpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/mgmapi_logevent/mgmapi_logevent.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/mgmapi_logevent_dual/mgmapi_logevent_dual.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_async/ndbapi_async.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_async1/ndbapi_async1.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_event/ndbapi_event.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_retries/ndbapi_retries.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_scan/ndbapi_scan.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_simple/ndbapi_simple.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_simple_dual/ndbapi_simple_dual.cpp:
Changed header to GPL version 2 only
storage/ndb/ndbapi-examples/ndbapi_simple_index/ndbapi_simple_index.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbdih/printSysfile.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtup/DbtupDiskAlloc.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtup/DbtupVarAlloc.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtup/tuppage.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtup/tuppage.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/dbtux/DbtuxStat.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/diskpage.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/lgman.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/lgman.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/pgman.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/pgman.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/print_file.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/record_types.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/restore.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/restore.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/tsman.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/blocks/tsman.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/DLCFifoList.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/DLCHashTable.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/DynArr256.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/DynArr256.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/KeyTable2Ref.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/LinearPool.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/NdbdSuperPool.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/NdbdSuperPool.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/Pool.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/Pool.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/RWPool.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/RWPool.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/Rope.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/SLFifoList.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/WOPool.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/WOPool.hpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/bench_pool.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/ndbd_malloc_impl.cpp:
Changed header to GPL version 2 only
storage/ndb/src/kernel/vm/ndbd_malloc_impl.hpp:
Changed header to GPL version 2 only
storage/ndb/src/mgmsrv/ParamInfo.cpp:
Changed header to GPL version 2 only
storage/ndb/src/ndbapi/NdbIndexStat.cpp:
Changed header to GPL version 2 only
storage/ndb/test/ndbapi/testIndexStat.cpp:
Changed header to GPL version 2 only
storage/ndb/test/tools/listen.cpp:
Changed header to GPL version 2 only
storage/ndb/tools/restore/ndb_nodegroup_map.h:
Changed header to GPL version 2 only
strings/my_strchr.c:
Changed header to GPL version 2 only
unittest/mysys/base64-t.c:
Changed header to GPL version 2 only
unittest/mysys/bitmap-t.c:
Changed header to GPL version 2 only
unittest/mysys/my_atomic-t.c:
Changed header to GPL version 2 only
unittest/mytap/tap.c:
Changed header to GPL version 2 only
unittest/mytap/tap.h:
Changed header to GPL version 2 only
win/Makefile.am:
Changed header to GPL version 2 only
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config/ac-macros/misc.m4:
remove unnecessary macro
configure.in:
use AC_CHECK_SIZEOF when appropriate
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include/atomic/nolock.h:
support for xadd emulation
include/atomic/x86-msvc.h:
syntax error
include/my_atomic.h:
support for xadd emulation, cleanup
mysys/my_atomic.c:
assert
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my_atomic_XX_t -> intXX, no implicit locking anymore
simplified framework, support for requested cleanups
dbug/dbug.c:
compiler warning
include/atomic/nolock.h:
my_atomic_XX_t -> intXX
include/atomic/rwlock.h:
my_atomic_XX_t -> intXX, no implicit locking anymore
include/atomic/x86-gcc.h:
my_atomic_XX_t -> intXX, no implicit locking anymore
include/atomic/x86-msvc.h:
my_atomic_XX_t -> intXX
simplified defines
support for cleanups
include/my_atomic.h:
my_atomic_XX_t -> intXX, no implicit locking anymore
simplified framework, support for requested cleanups
unittest/examples/no_plan-t.c:
compiler warning
unittest/mysys/Makefile.am:
fix for dependencies
unittest/mysys/my_atomic-t.c:
my_atomic_XX_t -> intXX, no implicit locking anymore
unittest/mytap/tap.c:
cosmetic fix
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BitKeeper/etc/ignore:
Added mysys/test_atomic to the ignore list
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