storage/maria/ma_checkpoint.c:
comments
storage/maria/ma_close.c:
comments
storage/maria/ma_write.c:
merge from myisam
storage/maria/maria_def.h:
typo
storage/myisam/mi_delete.c:
unneeded {}, making it identical to Maria
a function to store information about transactions into buffers,
is added to the transaction manager, and called by the Checkpoint module.
storage/maria/ma_checkpoint.c:
"collecting info about transactions" moves to trnman.c
storage/maria/trnman.c:
a function to store information about the active transactions list
and committed transactions list, into buffers, for use by the
Checkpoint module.
This function needs to know how many trns there are in the committed
list, so we introduce a counter, trnman_committed_transactions.
m_string.h is needed for LEX_STRING.
storage/maria/trnman.h:
A function to store information about the active transactions list
and committed transactions list, into buffers, for use by the
Checkpoint module.
storage/maria/unittest/trnman-t.c:
trnman.h needs LEX_STRING so m_string.h
- cleanups, simplifications
- moving the construction of the "dirty pages table" into the
pagecache where it belongs (because it's the pagecache which knows
dirty pages). TODO: do the same soon for the "transactions table".
- fix for a small bug in the pagecache (decrementation of "changed_blocks")
include/pagecache.h:
prototype
mysys/mf_pagecache.c:
m_string.h moves up for LEX_STRING to be known for pagecache.h.
In pagecache_delete_page(), we must decrement "blocks_changed" even
if we just delete the page without flushing it.
A new function pagecache_collect_changed_blocks_with_LSN()
(used by the Checkpoint module), which stores information about the
changed blocks (a.k.a. "the dirty pages table") into a LEX_STRING.
This function is not tested now, it will be when there is a Checkpoint.
storage/maria/ma_checkpoint.c:
refining the checkpoint code: factoring functions, moving the
construction of the "dirty pages table" into mf_pagecache.c
(I'll do the same with the construction of the "transactions table"
once Serg tells me what's the best way to do it).
storage/maria/ma_least_recently_dirtied.c:
Simplifying the thread which does background flushing of
least-recently-dirtied pages:
- in first version that thread will not flush, just do checkpoints
- in 2nd version, flushing should re-use existing page cache functions
like flush_pagecache_blocks().
unittest/mysys/test_file.h:
m_string.h moves up for LEX_STRING to be known in pagecache.h
Adding rec_lsn to Maria's page cache. Misc fixes to Checkpoint.
mysys/mf_pagecache.c:
adding rec_lsn, the LSN when a page first became dirty.
It is set when unlocking a page (TODO: should also be set when
the unlocking is an implicit part of pagecache_write()).
It is reset in link_to_file_list() and free_block()
(one of which is used every time we flush a block).
It is a ulonglong and not LSN, because its destination is comparisons
for which ulonglong is better than a struct.
storage/maria/ma_checkpoint.c:
misc fixes to Checkpoint (updates now that the transaction manager
and the page cache are more known)
storage/maria/ma_close.c:
an important note for the future.
storage/maria/ma_least_recently_dirtied.c:
comment
changing pseudocode to use the structures of the Maria pagecache
("pagecache->changed_blocks" etc) and other Maria structures
inherited from MyISAM (THR_LOCK_maria etc).
mysys/mf_pagecache.c:
comment
storage/maria/ma_checkpoint.c:
changing pseudocode to use the structures of the Maria pagecache
("pagecache->changed_blocks" etc) and other Maria structures
inherited from MyISAM (THR_LOCK_maria etc).
storage/maria/ma_checkpoint.h:
copyright
storage/maria/ma_control_file.c:
copyright
storage/maria/ma_control_file.h:
copyright
storage/maria/ma_least_recently_dirtied.c:
copyright
storage/maria/ma_least_recently_dirtied.h:
copyright
storage/maria/ma_recovery.c:
copyright
storage/maria/ma_recovery.h:
copyright
storage/maria/unittest/Makefile.am:
copyright
- fixes to the control file module
- unit test for it
- renames of all Maria files I created to start with ma_
storage/maria/ma_checkpoint.c:
Rename: storage/maria/checkpoint.c -> storage/maria/ma_checkpoint.c
storage/maria/ma_checkpoint.h:
Rename: storage/maria/checkpoint.h -> storage/maria/ma_checkpoint.h
storage/maria/ma_least_recently_dirtied.c:
Rename: storage/maria/least_recently_dirtied.c -> storage/maria/ma_least_recently_dirtied.c
storage/maria/ma_least_recently_dirtied.h:
Rename: storage/maria/least_recently_dirtied.h -> storage/maria/ma_least_recently_dirtied.h
storage/maria/ma_recovery.c:
Rename: storage/maria/recovery.c -> storage/maria/ma_recovery.c
storage/maria/ma_recovery.h:
Rename: storage/maria/recovery.h -> storage/maria/ma_recovery.h
storage/maria/Makefile.am:
control file module and its unit test program
storage/maria/ma_control_file.c:
DBUG_ tags. Fix for gcc warnings.
log_no -> logno (I felt "_no" sounded like a standalone "No" word).
ma_ prefix for some functions.
last_checkpoint_lsn_at_startup -> last_checkpoint_lsn (no need
to make special vars for the values at startup). Same for last_logno.
ma_control_file_write_and_force() now updates last_checkpoint_lsn
and last_logno, the idea being that they belong to the module,
others should not update them.
And thus when the module shuts down, it zeroes those vars.
storage/maria/ma_control_file.h:
importing structs from Sanja to get the control file module to compile;
we'll remove that when Sanja pushes the log handler.
CONTROL_FILE_IMPOSSIBLE_LOGNO is 0, not FFFFFFFF.
storage/maria/ma_control_file_test.c:
Unit test program for the Maria control file module.
Modelled after other ma_test* files in this directory (so, does
not follow the unit test framework recently introduced with libtap;
TODO as a task on all ma_test* programs).
We test that writing to the control file works, and re-reading from it
too, we check (by reading the file by ourselves) that its content
on disk is correct, and check that a corrupted control file is detected.
