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11 years agoTweak prev commit
Howard Chu [Fri, 23 Aug 2013 04:29:53 +0000 (21:29 -0700)]
Tweak prev commit

If somehow "need" is larger than the list size, don't
try to fake out the dirty list.

11 years agoLess aggressive page_spill
Howard Chu [Fri, 23 Aug 2013 01:51:48 +0000 (18:51 -0700)]
Less aggressive page_spill

spilling all possible pages is a waste because the majority will be
needed again. Just do 1/8th of the dirty list instead.

11 years agoUpdate caveats now that mdb_reader_check exists
Howard Chu [Wed, 21 Aug 2013 00:37:53 +0000 (17:37 -0700)]
Update caveats now that mdb_reader_check exists

11 years agoSilence warnings
Howard Chu [Wed, 14 Aug 2013 16:57:25 +0000 (09:57 -0700)]
Silence warnings

11 years agoTweak ITS#7615 fix: Obey strict-aliasing rules.
Hallvard Furuseth [Wed, 14 Aug 2013 13:21:59 +0000 (15:21 +0200)]
Tweak ITS#7615 fix: Obey strict-aliasing rules.

Do not access a long long as an array of longs.

11 years agoITS#7664 better fix
Howard Chu [Tue, 13 Aug 2013 20:12:47 +0000 (13:12 -0700)]
ITS#7664 better fix

For RDONLY, don't get lockfile until we know datafile exists.
Also, don't try to create a new datafile for me_mfd if someone
deleted it after we got me_fd.

11 years agoRevert "ITS#7664 delete lockfile if there is no environment"
Howard Chu [Tue, 13 Aug 2013 20:05:32 +0000 (13:05 -0700)]
Revert "ITS#7664 delete lockfile if there is no environment"

This reverts commit 8725838409512e999d78ea7b60773ce2f94d588f.

11 years agoITS#7664 delete lockfile if there is no environment
Howard Chu [Tue, 13 Aug 2013 18:34:32 +0000 (11:34 -0700)]
ITS#7664 delete lockfile if there is no environment

11 years agoFix uninit'd mem ref in mdb_page_split
Howard Chu [Mon, 12 Aug 2013 19:43:42 +0000 (12:43 -0700)]
Fix uninit'd mem ref in mdb_page_split

Don't compare cursors beyond their depth. (detected by valgrind)

11 years agoTweak NODUPDATA flag check
Howard Chu [Mon, 12 Aug 2013 00:25:00 +0000 (17:25 -0700)]
Tweak NODUPDATA flag check

Should allow for the possibility of future flag combos.

11 years agoFix obscure MDB_MULTIPLE bug
Howard Chu [Mon, 12 Aug 2013 00:15:03 +0000 (17:15 -0700)]
Fix obscure MDB_MULTIPLE bug

If a key has a single existing value, and then a put (MDB_MULTIPLE)
is done where the first of the multiple values matches the existing
value, the put would return SUCCESS without writing any of the
values. Fixed to loop to the next value as intended.

11 years agoPoint to mdb.c for docs on macros in Makefile
Howard Chu [Sat, 10 Aug 2013 21:55:51 +0000 (14:55 -0700)]
Point to mdb.c for docs on macros in Makefile

11 years agoAvoid compiling debug args with C90 compilers.
Hallvard Furuseth [Sat, 10 Aug 2013 11:50:10 +0000 (13:50 +0200)]
Avoid compiling debug args with C90 compilers.

Use double DPRINTF() parenthesis, so varargs macros are not needed.
Parenthesize MDB_DEBUG, in case the user defines it as foo || bar.

11 years agoRefuse ops on bad txns
Hallvard Furuseth [Sat, 10 Aug 2013 11:23:30 +0000 (13:23 +0200)]
Refuse ops on bad txns

11 years agoReplace EINVALs with generalized MDB_INCOMPATIBLE.
Hallvard Furuseth [Sat, 10 Aug 2013 11:23:30 +0000 (13:23 +0200)]
Replace EINVALs with generalized MDB_INCOMPATIBLE.

Also check xcursor instead of DUPSORT, it's slightly briefer.

11 years agoITS#7656 fix install target
John Hewson [Sat, 10 Aug 2013 11:12:42 +0000 (04:12 -0700)]
ITS#7656 fix install target

11 years agoITS#7660 Add mdb_txn_env to API
Salvador Ortiz [Fri, 9 Aug 2013 16:03:28 +0000 (11:03 -0500)]
ITS#7660 Add mdb_txn_env to API

11 years agomdb_txn_commit(): Always commit if MDB_TXN_SPILLS.
Hallvard Furuseth [Sat, 10 Aug 2013 10:29:45 +0000 (12:29 +0200)]
mdb_txn_commit(): Always commit if MDB_TXN_SPILLS.

Checking dirty_list was insufficient after a spill
with no named databases and no positioned cursors.

11 years agoITS#7661 mdb_dbi_flags(): Allow main DBI
Salvador Ortiz [Sat, 10 Aug 2013 07:42:19 +0000 (09:42 +0200)]
ITS#7661 mdb_dbi_flags(): Allow main DBI

11 years agomdb_del must ignore data if db not opened with MDB_DUPSORT
Salvador Ortiz [Fri, 9 Aug 2013 15:08:53 +0000 (10:08 -0500)]
mdb_del must ignore data if db not opened with MDB_DUPSORT

11 years agoAdd mdb_env_get_maxkeysize()
Howard Chu [Fri, 9 Aug 2013 11:51:33 +0000 (04:51 -0700)]
Add mdb_env_get_maxkeysize()

11 years agoReplace unpredictable EINVAL error returns.
Hallvard Furuseth [Fri, 9 Aug 2013 11:05:14 +0000 (13:05 +0200)]
Replace unpredictable EINVAL error returns.

Return EINVAL only for simple programmer errors.

11 years agoRe-fix reader-pid code
Hallvard Furuseth [Fri, 9 Aug 2013 10:54:42 +0000 (12:54 +0200)]
Re-fix reader-pid code

11 years agomdb_cursorpages_mark: Mark current txn and no more.
Hallvard Furuseth [Thu, 8 Aug 2013 17:57:52 +0000 (19:57 +0200)]
mdb_cursorpages_mark: Mark current txn and no more.

Ignore parent txn cursors since it is the current txn's dirty_list
which will be flushed. But check the current txn also when clearing,
since cursors can have pages which are dirty in a parent.

Check !mc_xcursor instead of !MDB_DUPSORT.  Equivalent for valid
data, but a bit safer if the sub-DB flags are corrupt.

11 years agoFix mdb_ovpage_free() vs. spill.
Hallvard Furuseth [Thu, 8 Aug 2013 17:57:52 +0000 (19:57 +0200)]
Fix mdb_ovpage_free() vs. spill.

Ensure me_pghead has room before removing from spill/dirty list.
Don't return pages to me_pghead in nested txns, use mt_free_pgs.

11 years agoFix page spilling when MDB_WRITEMAP.
Hallvard Furuseth [Thu, 8 Aug 2013 17:57:51 +0000 (19:57 +0200)]
Fix page spilling when MDB_WRITEMAP.

mdb_page_spill(): Don't binary-search the unsorted dirty_list.
mdb_page_flush(): Don't overwrite unprocessed dirty_list items.

11 years agoSet MDB_TXN_ERROR when inconsistent txn state
Hallvard Furuseth [Thu, 8 Aug 2013 17:57:51 +0000 (19:57 +0200)]
Set MDB_TXN_ERROR when inconsistent txn state

11 years agoFactor out MDB_env.
Hallvard Furuseth [Thu, 8 Aug 2013 17:54:54 +0000 (19:54 +0200)]
Factor out MDB_env.

11 years agoMDB_LOCK_VERSION -> MDB_LOCK_FORMAT.
Hallvard Furuseth [Thu, 8 Aug 2013 17:43:04 +0000 (19:43 +0200)]
MDB_LOCK_VERSION -> MDB_LOCK_FORMAT.

Pid locking needs a different lockfile-version: MDB_env's with and
without pid locking must not coexist, they can sabotage each other.
Store MDB_LOCK_FORMAT = (version | "use locking" flag) instead.

11 years agoFix mdb_reader_pid().
Hallvard Furuseth [Thu, 8 Aug 2013 17:43:04 +0000 (19:43 +0200)]
Fix mdb_reader_pid().

Treat unexpected errors as "don't know".  Invert Pidcheck return
value, so nonzero including error codes = "the process may exist".

On Windows: Catch exited but still existing processes.  Handle
undefined PROCESS_QUERY_LIMITED_INFORMATION.
On Unix: don't trust F_GETLK error to leave the input alone,
the fcntl() doc seems unclear.

11 years agoUse proper printf format on Windows
Howard Chu [Wed, 7 Aug 2013 19:42:46 +0000 (12:42 -0700)]
Use proper printf format on Windows

11 years agoSilence warnings
Hallvard Furuseth [Mon, 5 Aug 2013 08:01:39 +0000 (10:01 +0200)]
Silence warnings

11 years agoTweak comments
Hallvard Furuseth [Mon, 5 Aug 2013 07:55:57 +0000 (09:55 +0200)]
Tweak comments

11 years agoClarify doc: mdb_copy, nested txns, mdb_drop().
Hallvard Furuseth [Mon, 5 Aug 2013 07:55:48 +0000 (09:55 +0200)]
Clarify doc: mdb_copy, nested txns, mdb_drop().

mdb_copy: Does not copy lockfile. Can trigger file growth.
mdb_txn_begin(): Clarify usage restrictions.
mdb_drop(): State what to do rather than what will be done, since
closing the handle could otherwise be read as happening even at failure.

11 years agoTweak prev commit again
Howard Chu [Wed, 31 Jul 2013 15:09:40 +0000 (08:09 -0700)]
Tweak prev commit again

Make sure errors are propagated from init_meta

11 years agoFix typo in Win32 branch
Howard Chu [Tue, 30 Jul 2013 20:44:28 +0000 (13:44 -0700)]
Fix typo in Win32 branch

11 years agoCleanup prev commit
Howard Chu [Tue, 30 Jul 2013 19:47:12 +0000 (12:47 -0700)]
Cleanup prev commit

Loop on copyfd meta write, since pipes may return after partial write.

11 years agoITS#7652 fix I/O error checks
Howard Chu [Tue, 30 Jul 2013 17:22:12 +0000 (10:22 -0700)]
ITS#7652 fix I/O error checks

partial revert of d6d2638acc245116b8f091ac425b6700d06c4713 and
26a25df5fcc2fcddae6597a61c1b867fc27c568b

The original code was already tested and working correctly.

11 years agoTweak mdb_envinfo numreaders
Howard Chu [Mon, 29 Jul 2013 00:02:51 +0000 (17:02 -0700)]
Tweak mdb_envinfo numreaders

Return the actual shared reader count when it exists, not
just the current process env's reader count.

11 years agoITS#7615 use shorter names for semaphores
Howard Chu [Fri, 26 Jul 2013 17:19:54 +0000 (10:19 -0700)]
ITS#7615 use shorter names for semaphores

NetBSD can only handle up to 14 chars, we were using 21. Now
we encode to 15, and for NetBSD truncate the last char.

11 years agoTweak reader_pid check
Howard Chu [Fri, 19 Jul 2013 16:57:33 +0000 (09:57 -0700)]
Tweak reader_pid check

Check again after acquiring rmutex. Avoids potential issue with
a duplicate pid coming in between initial check and rmutex.

11 years agoGet pid lock outside of rmutex
Howard Chu [Fri, 19 Jul 2013 16:55:10 +0000 (09:55 -0700)]
Get pid lock outside of rmutex

Avoid holding rmutex for longer than necessary.

11 years agoTweak reader checks
Howard Chu [Thu, 18 Jul 2013 22:24:09 +0000 (15:24 -0700)]
Tweak reader checks

Use mti_numreaders for loop limit, not me_maxreaders.

11 years agoAdd mdb_reader_check()
Howard Chu [Thu, 18 Jul 2013 17:40:21 +0000 (10:40 -0700)]
Add mdb_reader_check()

11 years agoSplit MDB_VERSION to MDB_DATA/MDB_LOCK VERSION
Howard Chu [Thu, 18 Jul 2013 16:11:09 +0000 (09:11 -0700)]
Split MDB_VERSION to MDB_DATA/MDB_LOCK VERSION

11 years agoTweak reader_list
Howard Chu [Thu, 18 Jul 2013 16:00:51 +0000 (09:00 -0700)]
Tweak reader_list

11 years agoTweak mdb_stat(1)
Howard Chu [Thu, 18 Jul 2013 15:33:24 +0000 (08:33 -0700)]
Tweak mdb_stat(1)

Don't obtain reader txn before displaying reader table. Exit
after reader table if no other DB query options were given.

11 years agoAdd mdb_reader_list()
Howard Chu [Thu, 18 Jul 2013 14:41:11 +0000 (07:41 -0700)]
Add mdb_reader_list()

Dump the active slots in the reader table.

11 years agoAdd mdb_dbi_flags()
Howard Chu [Mon, 15 Jul 2013 17:57:13 +0000 (10:57 -0700)]
Add mdb_dbi_flags()

Retrieve the flags from a DB handle.

11 years agoFix child txn dirty_room counts in spill/unspill
Howard Chu [Sun, 14 Jul 2013 23:53:04 +0000 (16:53 -0700)]
Fix child txn dirty_room counts in spill/unspill

Don't count pages twice if they're already accounted in an ancestor txn.

11 years agoMore for stale sub-cursor flags
Howard Chu [Sun, 14 Jul 2013 15:28:26 +0000 (08:28 -0700)]
More for stale sub-cursor flags

Same fix for cursor_first/last.

11 years agoFix stale sub-cursor C_INIT flag
Howard Chu [Sun, 14 Jul 2013 15:20:18 +0000 (08:20 -0700)]
Fix stale sub-cursor C_INIT flag

Whenever we enter cursor_set() the sub-cursor's flag must be
cleared. If the new cursor position has valid subdata it will
be initialized again, if not then the sub-cursor has nothing
to point to.

11 years agoTweak comments, defaults should be OK already
Howard Chu [Fri, 12 Jul 2013 20:55:18 +0000 (13:55 -0700)]
Tweak comments, defaults should be OK already

11 years agoBump version to 0.9.7
Howard Chu [Fri, 12 Jul 2013 20:36:05 +0000 (13:36 -0700)]
Bump version to 0.9.7

11 years agoAlso set/clear P_KEEP in parent txn's cursors
Hallvard Furuseth [Fri, 12 Jul 2013 09:30:33 +0000 (11:30 +0200)]
Also set/clear P_KEEP in parent txn's cursors

11 years agoSpill pages, take 3
Howard Chu [Thu, 11 Jul 2013 20:09:47 +0000 (22:09 +0200)]
Spill pages, take 3

11 years agoDelay touching pages until cursor is positioned.
Howard Chu [Thu, 11 Jul 2013 20:09:47 +0000 (22:09 +0200)]
Delay touching pages until cursor is positioned.

This avoids unnecessary rewrites of pages that do not change.
(Restructuring for upcoming mdb_page_spill work.)

11 years agoSimplify: Always set C_UNTRACK for tracked cursors.
Hallvard Furuseth [Thu, 11 Jul 2013 20:09:46 +0000 (22:09 +0200)]
Simplify: Always set C_UNTRACK for tracked cursors.

TODO: Rename C_UNTRACK to C_TRACKED.  Omitted now for readability.
The current name is because it's lazy: not always set when tracked.

11 years agoSave freelist using proper mdb_cursor_put().
Hallvard Furuseth [Thu, 11 Jul 2013 20:09:46 +0000 (22:09 +0200)]
Save freelist using proper mdb_cursor_put().

(Restructuring for upcoming mdb_page_spill work.)
mdb_freelist_save() can't just Get() the destination, since
mdb_page_spill() may have put the destination in the read-only map.

TODO: Can this new put() modify the freelist, which would break it? The
final iteration's put() can shorten the node, the rest uses MDB_CURRENT.

We could set P_KEEP on dirty freeDB leaves and ovpages, since they are
all about to be modified.  But the code in this commit must stay anyway,
if mdb should support dropping a 256G DB. I.e. too big for dirty_list.

11 years agoMove code out to mdb_page_dirty()
Howard Chu [Thu, 11 Jul 2013 20:09:46 +0000 (22:09 +0200)]
Move code out to mdb_page_dirty()

11 years agoFactor out parent
Howard Chu [Thu, 11 Jul 2013 20:09:46 +0000 (22:09 +0200)]
Factor out parent

11 years agoFix env_read_header() on Windows
Howard Chu [Fri, 12 Jul 2013 19:53:35 +0000 (12:53 -0700)]
Fix env_read_header() on Windows

Commit d6d2638acc245116b8f091ac425b6700d06c4713 broke read
on zero-length files.

11 years agoDo not follow uninited cursors' page pointers.
Hallvard Furuseth [Wed, 10 Jul 2013 20:11:44 +0000 (22:11 +0200)]
Do not follow uninited cursors' page pointers.

Nor uninited cursors' subcursors' page pointers.

11 years agoFix rebalance/cursor adjust
Howard Chu [Wed, 10 Jul 2013 18:03:51 +0000 (11:03 -0700)]
Fix rebalance/cursor adjust

When collapsing root, must also move cursor index down,
not just the page pointer.

Also in mtest, break from NEXT loops on error, otherwise it just
prints the previous key/data again, which looks confusing.

11 years agoCursors: Clear C_EOF when clearing C_INITIALIZED
Howard Chu [Wed, 10 Jul 2013 15:49:29 +0000 (08:49 -0700)]
Cursors: Clear C_EOF when clearing C_INITIALIZED

11 years agoFixup other cursors after delete op
Howard Chu [Tue, 9 Jul 2013 21:21:35 +0000 (14:21 -0700)]
Fixup other cursors after delete op

11 years agoITS#7515 Reject conflicting page versions.
Hallvard Furuseth [Sun, 7 Jul 2013 15:14:38 +0000 (17:14 +0200)]
ITS#7515 Reject conflicting page versions.

If mdb_page_touch() sees a page in txn's dirty_list, that
is the page version txn's cursors should have.  Fail if
the user may be seeing and depending on another version.

11 years agoITS#7515 Fix tracking of parent txn's cursors.
Hallvard Furuseth [Sun, 7 Jul 2013 15:13:27 +0000 (17:13 +0200)]
ITS#7515 Fix tracking of parent txn's cursors.

Restore mc_flags and xcursors, they were tracked but not merged.
Simplify: Track parent txn's original cursors after backing them
up, instead of tracking copies and merging them back at commit.

11 years agoSimplify MDB_cursor: Drop flags C_ALLOCD,C_SHADOW.
Hallvard Furuseth [Sun, 7 Jul 2013 15:13:27 +0000 (17:13 +0200)]
Simplify MDB_cursor: Drop flags C_ALLOCD,C_SHADOW.

11 years agoSilence more uninit warnings
Hallvard Furuseth [Sat, 6 Jul 2013 19:42:45 +0000 (21:42 +0200)]
Silence more uninit warnings

11 years agoSilence uninit warning in prev commit
Howard Chu [Tue, 2 Jul 2013 09:23:49 +0000 (02:23 -0700)]
Silence uninit warning in prev commit

11 years agoTweaks for MDB_MULTIPLE
Howard Chu [Tue, 2 Jul 2013 09:19:17 +0000 (02:19 -0700)]
Tweaks for MDB_MULTIPLE

Terminate loop on intermediate failures, return count of written items,
document usage.

11 years agoITS#7635 simplify 9474c1a0b62cad57b62855d09a201670385caa80
Howard Chu [Mon, 1 Jul 2013 21:53:29 +0000 (14:53 -0700)]
ITS#7635 simplify 9474c1a0b62cad57b62855d09a201670385caa80

11 years agoITS#7635 fix read txn potential data race
Howard Chu [Mon, 1 Jul 2013 20:41:23 +0000 (13:41 -0700)]
ITS#7635 fix read txn potential data race

11 years agoFix uninit warnings, lseek usage
Howard Chu [Sun, 30 Jun 2013 14:40:02 +0000 (07:40 -0700)]
Fix uninit warnings, lseek usage

11 years agoFix alloc/free issues.
Hallvard Furuseth [Wed, 26 Jun 2013 16:02:52 +0000 (18:02 +0200)]
Fix alloc/free issues.

Page leak, mdb_page_alloc(). On error, don't shorten me_pghead.
Memleak, mdb_ovpage_free(). Free page or keep it in dirty_list.
Bad MIDL, mdb_midl_need(). Fix midl[-1] (allocated size).

11 years agoFactor out some vars, simplify.
Hallvard Furuseth [Wed, 26 Jun 2013 16:02:48 +0000 (18:02 +0200)]
Factor out some vars, simplify.

11 years agoMakefile/user-macro comments.
Hallvard Furuseth [Wed, 26 Jun 2013 16:02:26 +0000 (18:02 +0200)]
Makefile/user-macro comments.

11 years agoTweak I/O, fix last commit.
Hallvard Furuseth [Wed, 26 Jun 2013 16:02:17 +0000 (18:02 +0200)]
Tweak I/O, fix last commit.

11 years agoImprove MDB error handling, drop seek calls.
Hallvard Furuseth [Sat, 22 Jun 2013 21:15:10 +0000 (23:15 +0200)]
Improve MDB error handling, drop seek calls.

Catch I/O errors. Do nothing between OS call failure and ErrCode().
Do not use errno after non-OS-errors like write() >= 0, which could
give a failure return of success (errno 0) or some irrelevant error
code.  Drop seek calls, use pwrite/pread/Windows OVERLAPPED offset.

11 years agoFix Windows I/O.
Hallvard Furuseth [Sat, 22 Jun 2013 21:01:30 +0000 (23:01 +0200)]
Fix Windows I/O.

Don't put a 64-bit filesize in a 32-bit int before shifting
down.  Always pass &sizehi to SetFilePointer->maxsize, so
sizelo not is treated a signed distance.  Hide unused vars
when _WIN32.  Reinitialize OVERLAPPED before reuse.

11 years agoCatch more MDB errors. DPRINTF in mdb_env_reset0.
Hallvard Furuseth [Sat, 22 Jun 2013 20:17:41 +0000 (22:17 +0200)]
Catch more MDB errors. DPRINTF in mdb_env_reset0.

11 years agoTweak MIDLs, catch errors.
Hallvard Furuseth [Sat, 22 Jun 2013 20:10:43 +0000 (22:10 +0200)]
Tweak MIDLs, catch errors.

Grow midls earlier in order to catch errors earlier.  Use
mdb_midl_need() instead of mdb_midl_grow(), then mdb_midl_xappend()
needs no error checks. Factor out mdb_midl_append_range().

11 years agoFactor out MDB variables/expressions, cleanup.
Hallvard Furuseth [Sat, 22 Jun 2013 10:30:04 +0000 (12:30 +0200)]
Factor out MDB variables/expressions, cleanup.

mdb_page_malloc(): Take a txn arg instead of a cursor.

11 years agoRearrange MDB dirty page code.
Hallvard Furuseth [Sat, 22 Jun 2013 09:56:04 +0000 (11:56 +0200)]
Rearrange MDB dirty page code.

Split out mdb_dpage_free(), mdb_page_flush() and clean up.

11 years agoSimplify mdb_page_alloc().
Hallvard Furuseth [Thu, 20 Jun 2013 05:41:35 +0000 (07:41 +0200)]
Simplify mdb_page_alloc().

Merge if() branches. Restore retry=500 when MDB_PARANOID, for clarity.

11 years agoITS#7620: Keep empty IDLs. Tweak mdb_page_alloc().
Hallvard Furuseth [Thu, 20 Jun 2013 05:41:35 +0000 (07:41 +0200)]
ITS#7620: Keep empty IDLs. Tweak mdb_page_alloc().

MDB_env.me_pghead: Don't free it when empty. mdb_ovpage_free()
needs it, but cannot allocate it.
mdb_midl_alloc(): Fill in length=0.
mdb_page_alloc(): Also Skip freeDB if txnid<3, instead of <4,
and consistently DPRINTF consumed IDLs.

11 years agoITS#7623 Clear P_SUBP on conversion from fake page
Howard Chu [Mon, 17 Jun 2013 20:26:11 +0000 (22:26 +0200)]
ITS#7623 Clear P_SUBP on conversion from fake page

11 years agoITS#7515 Nested MDB txns: Inherit txn flags.
Hallvard Furuseth [Thu, 13 Jun 2013 06:58:25 +0000 (08:58 +0200)]
ITS#7515 Nested MDB txns: Inherit txn flags.

Committing a nested txn lost the MDB_TXN_DIRTY flag
in the parent, unless the child had set it too.

11 years agoClean up mdb_page_touch(), mdb_page_copy().
Hallvard Furuseth [Thu, 13 Jun 2013 06:58:24 +0000 (08:58 +0200)]
Clean up mdb_page_touch(), mdb_page_copy().

When copying, round up/down to aligned sizes. Skip the unused portion,
this was not done when touching a page dirty in the parent txn.
No other change in behavior.

Simplify mdb_page_touch(), including: Drop test m3==mc, the condition
is caught below. Don't "modify" the parent's pgno into the same pgno,
when a nested txn copies a parent's page into its freelist.

11 years agoITS#7594 Fix MDB cursor tracking with subDBs.
Hallvard Furuseth [Thu, 13 Jun 2013 06:58:24 +0000 (08:58 +0200)]
ITS#7594 Fix MDB cursor tracking with subDBs.

The tracking code should not change the current cursor.
It did when that was a C_SUB cursor, which should not be
checked against the tracked cursors but their xcursors.

However, do not bother to skip the tracking code for the
current cursor when it would not change that cursor anyway.

11 years agoITS#7594 Invalidate a dropped MDB DB's cursors.
Hallvard Furuseth [Thu, 13 Jun 2013 06:58:24 +0000 (08:58 +0200)]
ITS#7594 Invalidate a dropped MDB DB's cursors.

11 years agoDon't #define _GNU_SOURCE if already defined.
Hallvard Furuseth [Thu, 13 Jun 2013 06:58:24 +0000 (08:58 +0200)]
Don't #define _GNU_SOURCE if already defined.

11 years agoMore for ITS#7620 Fix mdb_ovpage_free().
Hallvard Furuseth [Thu, 13 Jun 2013 06:25:25 +0000 (08:25 +0200)]
More for ITS#7620 Fix mdb_ovpage_free().

Do not binary-search dirty_list, it is unsorted when MDB_WRITEMAP.
Catch errors. In nested txns, put the page in mt_free_pgs after
all since pages dirty in a parent txn would add complexities.

11 years agoPartial revert c2cac4588a40480c020d320b544bc5f8e72adb11
Howard Chu [Wed, 12 Jun 2013 15:41:32 +0000 (08:41 -0700)]
Partial revert c2cac4588a40480c020d320b544bc5f8e72adb11

MDB_NEXT was fine before, duh.

11 years agoDrop me_pgfree, add mdb_freelist_save().
Hallvard Furuseth [Wed, 12 Jun 2013 15:20:42 +0000 (17:20 +0200)]
Drop me_pgfree, add mdb_freelist_save().

Split up saving me_pghead, to make me_pgfree unneeded. Also mf_pghead
is now a midl. Needed after e7f6767ea815fe0ada1f95037dfdec176ec4d5bb
("Return fresh overflow pages to current pghead").
Tweak MDB_DEBUG freelist output, make it ascending.

11 years agoFix CURSOR_NEXT/PREV on emptied DB
Howard Chu [Wed, 12 Jun 2013 00:13:08 +0000 (17:13 -0700)]
Fix CURSOR_NEXT/PREV on emptied DB

11 years agoMake sure mdb_stat() gets valid data
Howard Chu [Sat, 8 Jun 2013 21:10:08 +0000 (14:10 -0700)]
Make sure mdb_stat() gets valid data

11 years agoReturn fresh overflow pages to current pghead
Howard Chu [Sun, 5 May 2013 08:28:12 +0000 (01:28 -0700)]
Return fresh overflow pages to current pghead

And remove them from the current dirty list.

11 years agoITS#7594 more for subDB cursor fix
Howard Chu [Wed, 5 Jun 2013 23:13:43 +0000 (16:13 -0700)]
ITS#7594 more for subDB cursor fix