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269 Commits

Author SHA1 Message Date
Hallvard Furuseth
f3b99004d1 mdbx: backport - Silence warning for initializer "mdb_copy my = {0}". 
1st struct member was not a scalar.

Change-Id: If52afc241f30b6af77a608a41178cbe929ceb288
LY: Already fixed in libmdbx, but to be closer to LMDB.
 2016-10-25 08:19:21 +03:00
Leo Yuriev
43d87b4d97 mdbx: move to the OpenLDAP Public License. 
Finally for https://github.com/ReOpen/libmdbx/issues/3
 2016-09-27 13:44:23 +03:00
Howard Chu
c25b01b5b6 mdbx: backport - reset cursor EOF flag in cursor_set (ITS#8489). 
It usually gets done anyway, but one of the fastpath shortcuts
bypassed this step.

Change-Id: I89d3c797ce969524e383b093dcf592579a514de1
 2016-09-06 08:19:09 +03:00
Leo Yuriev
796c4f5bc2 mdbx: fix usage of __attribute__((format(gnu_printf, ...)) for clang. 
Change-Id: Iaf3890a9c915f63896822f430b219bc107037540
 2016-08-25 21:10:52 +03:00
Hallvard Furuseth
b99cb20483 mdbx: minor fix mdb_page_list() message. 
Change-Id: I25697a7123aef182762a91536e54ca118d6a0958
 2016-08-25 17:34:07 +03:00
Leo Yuriev
5239bce5e5 mdbx: adds minor assert. 
More for ae92d0d671.

Change-Id: I32f8f54ec5888fe794b83d42ed7f5ae0138070d4
 2016-08-24 11:52:36 +03:00
Leo Yuriev
ae92d0d671 mdbx: fixes issues detected by PVS-Studio. 
See http://www.viva64.com/en/b/0422/

This is Partial for https://github.com/ReOpen/ReOpenLDAP/issues/107

Change-Id: Ic47d3cb1ff88ca0807bdd692a1e01487c70b264c
 2016-08-22 14:39:45 +03:00
Leo Yuriev
bc7b9984d3 mdbx: fix copyright timestamps. 
1 of 2 for https://github.com/ReOpen/libmdbx/issues/3

Change-Id: I7a0b820e092e7b0064ae22341bebcd015e37b7c7
 2016-08-22 13:46:40 +03:00
Leo Yuriev
a306a1eac4 mdbx: fix assertions when debug enabled for various open/sync modes. 
No bug is here, but had a wrong condition for assertion-check.

Change-Id: I6db76932e235f8212543fdd160a15cc9299d79e8
 2016-08-18 17:09:09 +03:00
Leo Yuriev
7cfcc9ff7a mdbx: check assertions depending on NDEBUG. 
Change-Id: I0c8ce98242e7451dd82f8abfbac70b2f4dcfa7a0
 2016-08-18 17:09:09 +03:00
Hallvard Furuseth
ac09708bfe mdbx-doc: comment MDB_page, rename mp_ksize. 
Change-Id: Ia9d28a76fe0b51ccfc40ba97b913f064b81bc00e
 2016-08-04 10:44:39 +03:00
Hallvard Furuseth
85612d9722 mdbx-doc: VALID_FLAGS, mm_last_pg, mt_loose_count. 
Change-Id: I6c615244d8b137ac4ed67fb7be70e8ccd4e7cac4
 2016-08-04 10:44:33 +03:00
Hallvard Furuseth
f627930bdc mdbx: backport - Refactor mdb_page_get(). 
Change-Id: I6a44000d954025f87637c8b60da85b210b4df65e
 2016-07-26 17:13:06 +03:00
Leo Yuriev
a3a98a7a2e mdbx: fix 'mdb_copy' init warning. 
Change-Id: Ifc3d0b565a0dd6d6da40e7fe2be2c9ff0f5458fb
 2016-07-20 12:51:52 +03:00
Hallvard Furuseth
dd98ab22da mdbx: backport - Add error MDB_PROBLEM, replace some MDB_CORRUPTED. 
When problem is most likely in txn, not on disk.

Change-Id: Ie01d9eb32e8f250f6dd98f3fe84c38ed15593a2e
 2016-07-18 18:34:59 +03:00
Hallvard Furuseth
3befcdab01 mdbx: backport - ITS#8209 fix MDB_CP_COMPACT. 
Handle errors.  Fix cond_wait condition so mc_new
is the sole control var.  Drop specious cond_waits.
Do not look at 'mo' while copythr writes it.

Preserve DB flags (use metapage#1) when main DB is empty.
Fail if metapage root != actual root in output file.

Some _aligned_malloc() doc seems to think arg NULL = user error.
Don't know if posix_memalign() pointer is defined after failure.

Change-Id: Idfdc118b4848bb96bace0f29db9dcdd710b7a1f4
 2016-07-18 18:34:07 +03:00
Leo Yuriev
6d99bb59a8 mdbx: use __GNUC_PREREQ and __GNUC_PREREQ. 
Change-Id: Ib1927f6ab2e3397fb2a0e83a73c5c0252bc8a593
 2016-06-09 15:23:47 +03:00
Leo Yuriev
9c5d029417 mdbx: clarify copyright and license. 
Change-Id: Ib1b9516ce09497559937f749d520719046c5b7e6
 2016-06-09 13:21:20 +03:00
Leo Yuriev
0e90ea1d8d mdbx: separate MDBX's features. 
Change-Id: I1964ee5d8b8e5fca170b8e955bfc1a6efe25f6c5
 2016-06-09 08:54:46 +03:00
Hallvard Furuseth
f5c61018ba mdbx: backport - mdb_env_setup_locks() Plug mutexattr leak on error. 
Change-Id: Iac82f957e4961ec964d9d0a75ef0b24a9f68929c
 2016-06-09 04:18:55 +03:00
Howard Chu
2806453b54 mdbx: backport - ITS#8339 Solaris 10/11 robust mutex fixes. 
Check for PTHREAD_MUTEX_ROBUST_NP definition (this doesn't work
on Linux/glibc because they used an enum). Zero out mutex before
initing.

Change-Id: Ic618a6a72fbd7680dd76d5fd0aef06545dcba994
 2016-06-09 03:11:05 +03:00
Leo Yuriev
3deb4577fb mdbx: fix build by clang (missing-field-initializers). 
Change-Id: I45b966a6572d0669596106c3c70862dc113fb642
 2016-06-06 01:53:00 +03:00
Leo Yuriev
f943bbf91c mdbx: more for ASAN. 
Change-Id: I2bd0573cfe4c7822fa8f3cf94db60b684964a40d
 2016-05-19 22:05:46 +03:00
Howard Chu
856f30b52c mdbx: backport - ITS#8424 init cursor in mdb_env_cwalk. 
Change-Id: I979b6f492c56d1c61ce233727ff058df48f327d1
 2016-05-16 17:46:45 +03:00
Leo Yuriev
09d7904317 mdbx: clarify ov-pages copying in cursor_put(). 
Change-Id: I48ae57579a7d68178ec1857785ffdd6f0c0f7e13
 2016-05-10 13:21:38 +03:00
Hallvard Furuseth
1ef0106b51 mdbx: backport - Comment ovpage code in mdb_cursor_put(). 
Change-Id: I6b3bff87dc49135fdda3e9ce0a505822ab26d3d5
 2016-05-10 13:15:05 +03:00
Leo Yuriev
7c3c28239c mdbx: more likely/unlikely for mdb_node_add. 
Change-Id: I1f241c6cea55db6fed744ba9f6f5733f6622015f
 2016-05-08 02:29:59 +03:00
Leo Yuriev
4d3e349c16 mdbx: don't memcpy when src eq dest. 
Workaround for 'destination overlaps source' from Valgrind.

Change-Id: Ib12eacbd224057334311816346ea0ccece2b42cf
 2016-05-07 23:44:41 +03:00
Leo Yuriev
8791e3243f mdbx: workaround for pthread_setspecific's memleak. 
Change-Id: I8b48548a40bb2fe58db14b8f6944f5a3802ffbb9
 2016-05-07 15:21:59 +03:00
Leo Yuriev
14b3afdcff mdbx: notify OOM-handler about end of loop. 
Change-Id: I71d66e371df869560801e12b8b06c4f4cbf90e98
 2016-05-07 03:52:04 +03:00
Leo Yuriev
f70d6638c5 mdbx: MDBX_ALLOC_KICK for freelist backlog. 
Tries to sync only when all pages was allocated,
but not every time reclaiming had stopped at weak checkpoint.

Change-Id: I0b41fd87f1eab4725379a17fc29e16820122467d
 2016-05-06 04:53:14 +03:00
Leo Yuriev
65354dcd01 mdbx: lifo-reclaimig for weak-to-steady conversion. 
Change-Id: Id078c434cf3a624331c53f6b38ce34e31dc65aa5
 2016-05-06 04:50:51 +03:00
Leo Yuriev
f335c13b45 mdbx: clarify mdbx_oomkick() for LMDB-mode. 
Change-Id: I6e38a1e2892084f8a5f98af7f947c1c9d2f18b9c
 2016-05-06 04:13:29 +03:00
Leo Yuriev
599069b2c4 mdbx: remove needless assert. 
Change-Id: I0129a9e2cd8bda4c541d8b610bcf3f887ddcb75b
 2016-05-04 22:31:58 +03:00
Leo Yuriev
2dd9638321 mdbx: refine find_oldest() and oom_kick(). 
Change-Id: I758eba1a93550b687bbec6bf90e5b2d48090af25
 2016-05-04 22:31:58 +03:00
Leo Yuriev
50f5475185 mdbx: don't mimics the MDBX's features for MDB. 
Change-Id: Ie3865434c741da77b9a285e43b7d6a1d9ec0c5e2
 2016-05-04 22:30:11 +03:00
Leo Yuriev
78e6bf5e36 mdbx: refine/speedup mdb_cmp_memn(). 
Change-Id: I2c62246b26485039f29bc400a4d42f05270a7398
 2016-04-27 16:08:08 +03:00
Leo Yuriev
477932e2b3 mdbx: MADV_REMOVE for unallocated space. 
Change-Id: I14db843cf6e0dc713e2f302dc5ad86dc405c8d62
 2016-04-27 01:52:52 +03:00
Leo Yuriev
745bdd346a mdbx: extra backlog's page for MDB_LIFORECLAIM. 
Change-Id: I24d656de96a4bc3a3d4f6409db75868b818a4233
 2016-04-26 22:48:08 +03:00
Howard Chu
7ae6c0f768 mdbx: backport - ITS#8412 fix NEXT_DUP after cursor_del. 
Change-Id: If0bc63a9d398ae440a7a9ab7f0502b9c9608640e
 2016-04-26 15:19:26 +03:00
Leo Yuriev
bfd82b5830 mdbx: refine mdb_env_sync0(). 
Change-Id: If27986d02b2ca19ba547fe8fa5c8f4a8b9019900
 2016-04-20 19:51:29 +03:00
Howard Chu
78f1fbd038 mdbx: backport - ITS#8406 fix xcursors after cursor_del. 
Don't leave them uninit'd if they now point at a valid DUP node

Change-Id: Idccf9540686816e3d06e404c9a5bef1bce059bfc
 2016-04-20 19:44:01 +03:00
Leo Yuriev
ae324984cb mdbx: rework backlog for freeDB deletion. 
Change-Id: Ib535233313e8ddd21c35df46c03e5e298f3587e6
 2016-04-20 19:44:01 +03:00
Leo Yuriev
90aa4b154a mdbx: refine mdbx_cmp2int(). 
Change-Id: I5497db2e88d764e18a1aae1809dc66fd62a5adbe
 2016-04-19 11:59:36 +03:00
Leo Yuriev
026a566fc6 mdbx: minor refine madvise order. 
Change-Id: Ia6b78cad2aae68f5cb4c8475fbd27f9a9cb44cf2
 2016-04-19 11:59:36 +03:00
Leo Yuriev
80e660317f mdbx: prohibit MDB_LIFORECLAIM with just MDB_NOMETASYNC. 
Change-Id: Ib605174bf75c473aaf42b9aa9011db29343e4484
 2016-04-19 11:59:36 +03:00
Leo Yuriev
bf7f3814f9 mdbx: minor fix non-ascii comment. 
Change-Id: Ie9a38e2bef3c8ef91adc3f45818096658c84cd34
 2016-04-19 11:59:35 +03:00
Howard Chu
ebf1ae1bdc mdbx: backport - mdb_drop optimization. 
If we know there are no sub-DBs and no overflow pages, skip leaf scan.

Change-Id: I3005aaf0f80821f87d8a88c435fda1a52ee0557a
 2016-04-13 13:26:26 +03:00
Leo Yuriev
828a5d73ca mdbx: always copy the rest of page (MDB_RESERVE case). 
Change-Id: Iebc406767bee98a85ab6efec887ed698ffe59066

> On 30. mars 2016 19:25, Леонид Юрьев wrote:
>
> Why mdb_cursor_put() doesn't copy the rest of page in case MDB_RESERVE?
>
> In other words - why we should copy or not copy an end of page in
> dependence from MDB_RESERVE?

2016-03-30 19:46 GMT+03:00 Howard Chu <hyc@symas.com>:

That logic is backwards because I was preserving existing behavior,
i.e. make the page - including unused portions - look the same with
put() in the child txn as put() in the parent.  So with MDB_RESERVE
the entire page must be copied in case the user peeks at it before
writing to it.  Without MDB_RESERVE, the initial part of the page
body need not be copied since LMDB is about to overwrite it.

I'll comment that, unless that code should just go away.  Don't know
if this is the best behavior or it was just easier to code it than
to decide whether to cater to such obscure user behavior.  But
people do come up with special things do do about overflow pages.
 2016-04-13 13:12:47 +03:00
Leo Yuriev
c17cff1d4e check MDB_RESERVE against MDB_DUPSORT. 
Change-Id: I7459a92ecea867a5fd6510c828ff65cd551a1e9a
 2016-03-30 02:32:59 +03:00
Leo Yuriev
b59f25fd46 mdbx: minor format spaces/tabs. 
Change-Id: Ic9cce2e7a2552fb062ab8709121c72a9131be8b6
 2016-03-30 02:32:50 +03:00
Howard Chu
e7859934f2 mdbx: backport - ITS#8393 fix MDB_GET_BOTH on non-dup record. 
Change-Id: I96028ff6de55915bab98a7d0e2d97072296fc769
 2016-03-29 23:03:58 +03:00
Leo Yuriev
33e2b52118 mdbx: fix nasty/stupid mistake in cmp-functions. 
Change-Id: If9aff5d9cd46dde614ddaa688113be8be12f3e5d
 2016-03-29 23:03:58 +03:00
Leo Yuriev
321bc2b901 mdbx: fix one more minor warning. 
Change-Id: I80466714d739fc46aedbedfee0919b64704ffc37
 2016-03-25 05:08:35 +03:00
Leo Yuriev
e47f52a2f3 mdbx: fix gcc warnings. 
Change-Id: Ic9014b947541a4d6c399b0d69dfc495cc98c70a2
 2016-03-25 04:56:34 +03:00
Leo Yuriev
6a0c1c47a6 mdbx: fix mdb_kill_page() for MDB_PAGEPERTURB. 
This should fix https://github.com/ReOpen/ReOpenLDAP/issues/73

Change-Id: I9514ae76ca3b56063ba345e9d06caed7ec2c1439
 2016-03-17 14:47:45 +03:00
Leo Yuriev
e90613a98c mdbx: more __inline/__hot. 
Change-Id: I9a0971a6978c958c6d5e9ed2066630f2876f988f
 2016-03-17 14:47:11 +03:00
Leo Yuriev
1b7f1bc60a mdbx: drop lead_txnid(), g.e. undo tsan-aware changes. 
Change-Id: I18a86661b0bd58bf74c644c0ed96bd836afc040c
 2016-03-13 19:31:22 +03:00
Leo Yuriev
14ddec2051 mdbx: refine mdb_env_sync(). 
Change-Id: I37e6079a94a20624e65aed3e2e599bb4490afcc0
 2016-03-13 19:18:54 +03:00
Leo Yuriev
4d9c0657d9 mdbx: refine mdb_meta_head_r(). 
Change-Id: I038862b3dada408de46f24175513d7522b1f89f5
 2016-03-13 19:18:54 +03:00
Leo Yuriev
c05fb6862d mdbx: mdbx_env_set_syncbytes() only for MDBX-mode. 
Change-Id: I7836d4b7b538fc15407122ea40c36a2f8a5ae033
 2016-03-12 20:45:16 +03:00
Leo Yuriev
eb429da210 mdbx: minors. 
Change-Id: Id1d8ed5bf6ce253dc73b2e69e8701bffa83f7e12
 2016-03-12 20:44:20 +03:00
Howard Chu
ded1ada9eb mdbx: backport - Tweak MDB_PREV_MULTIPLE for uninit'd cursor. 
Change-Id: I1f07e7c4d80631a1a0b2c70a936ef7b458baa11a
 2016-03-03 15:51:46 +03:00
Leo Yuriev
9d775b0a36 mdbx: rework support for ThreadSanitizer. 
Change-Id: I6a1cc980fa835215d2051f68bbf8580b747e6d6b
 2016-03-03 15:51:46 +03:00
Leo Yuriev
c809b2e12c mdbx: MDB_PAGEPERTURB instead of LDAP_MEMORY_DEBUG. 
Change-Id: I87d2c0518c11f8ff27e5064b4d59900dfd2131fc
 2016-03-03 14:38:44 +03:00
Leo Yuriev
c9642d1082 mdbx: MDB_PAGEPERTURB. 
Change-Id: Id78304cb1f5caa3231e69388f6ce29a431e39976
 2016-02-09 09:28:18 +03:00
Leo Yuriev
a47cdfebba mdbx: fix percent in mdbx_txn_straggler(). 
fix 75ab3716fb

Change-Id: Ia63d89d189640c617da6e5e5c4567f5f8a2b84f8
 2016-02-08 13:10:17 +03:00
Leo Yuriev
b949bbd169 mdbx: cleanup inherited errno's bug. 
Change-Id: I0635f4e4a224ff4516859d12cc72b77aac41beec
 2016-02-04 06:23:55 +03:00
Leo Yuriev
425ac1cde6 mdbx: fix madvise() flags, it is not a bitmask. 
Change-Id: Ie5109779dc596190c467dcd6e84a1684e71575f5
 2016-02-04 06:23:55 +03:00
Howard Chu
77d482ef1e mdbx: backport - Happy New Year 2016. 
Change-Id: I856f00f5cc7ef9cff0c7e93257ddcbd074e02c55
 2016-02-01 21:03:53 +03:00
Howard Chu
e6ff451d84 mdbx: backport - ITS#8355 fix subcursors. 
make sure C_DEL gets reset in subcursor after it moves.

Change-Id: I334cadcd981e7578d98e326e6bd785bed709a83a
 2016-01-25 18:36:49 +03:00
Leo Yuriev
9d14f6a2ac mdbx: avoid tsan-collision by mdb_env_reader_destr(). 
Change-Id: Ic87e67db6337e2e1fe1bc21d5e2bbde64b21935b
 2016-01-25 15:21:23 +03:00
Leo Yuriev
c9c0549b4f mdbx: fix madvise() flags. 
Change-Id: If0ed3cd972fbc0caea486656ae05526aa2022574
 2016-01-14 00:27:37 +03:00
Leo Yuriev
4ad241b864 mdbx: msync only used part instead of entire db. 
Change-Id: I55611613f12d6e01599133336df183ada4d2de3d
 2016-01-14 00:27:30 +03:00
Howard Chu
ba29ae2cd2 mdbx: backport - Add MDB_PREV_MULTIPLE. 
Logical counterpart to GET_MULTIPLE, NEXT_MULTIPLE

Change-Id: I3f42cb1599997e79dbdc76bcf23b78314ededfc9
 2016-01-09 22:28:39 +03:00
Hallvard Furuseth
b067025e8b mdbx: backport - Catch strdup failure in mdb_dbi_open(). 
Change-Id: I754e8c966cc093f162cfbb33d3b179585e3ea4a2
 2015-12-15 12:45:54 +03:00
Leo Yuriev
efda814f7e mdbx: minor flags cleanup. 
Change-Id: I6ebb0d76963c0bf41051ca97fba4ec6f564519e2
 2015-12-13 19:49:53 +03:00
Howard Chu
3df7c4b1e1 mdbx: backport - ITS#8336 fix page_search_root assert on FreeDB. 
Let "illegal" branch pages thru on the FreeDB - the condition
is only temporary and will be fixed by the time rebalance finishes.

Change-Id: I5d34fd96096f88638db55166aba7194dcef7e429
 2015-12-13 19:49:22 +03:00
Hallvard Furuseth
4fcbaa44f3 mdbx: backport - ITS#8334 Fix MDB_APPENDDUP vs. rewrite(single item). 
Change-Id: I7742bd2e75ef670dac31a46d270a96ee28c20639
 2015-12-13 19:49:22 +03:00
Leo Yuriev
886fa96a5d mdbx: tsan 'edge-mutex'. 
Change-Id: If6fe58d9e1e334fbdaec529a14a78f5ebc6d8103
 2015-12-13 19:41:08 +03:00
Leo Yuriev
24449c2a07 mdbx: avoid tsan-trap in mdb_txn_renew0() by me_live_reader. 
Change-Id: I70f173d3e77c9cc84881c86e8fc64ae2a4906f0b
 2015-12-13 19:41:07 +03:00
Leo Yuriev
f38bb9621f mdbx: avoid tsan-trap in mdb_find_oldest(). 
Change-Id: Icaaf032fd3600b2ee61feb39d32af60c4e3bb0d5
 2015-12-13 19:41:07 +03:00
Leo Yuriev
75ab3716fb mdbx: avoid tsan-trap in mdbx_txn_straggler(). 
Change-Id: Ib62cdd5592e6001a1734c321f3801722e4dcf7e4
 2015-12-13 19:41:07 +03:00
Leo Yuriev
4e5d5ef935 mdbx: avoid tsan-trap in mdb_meta_head_r(). 
Change-Id: I594c13e1fe908f8afdc663d349cfc4cf634bba77
 2015-12-13 19:41:07 +03:00
Leo Yuriev
5bc0a76899 mdbx: avoid tsan-trap in mdb_txn_renew0() by mti_txnid. 
Change-Id: Ia91bb913fc99880ec34fd0bf6fc9396555c6a56f
 2015-12-13 19:41:07 +03:00
Leo Yuriev
50c480e2de mdbx: avoid tran-trap in mdb_txn_renew0() by mt_flags. 
Avoid read txn-flags from shared write TXN (e.g. env->me_tnx0->mt_flags)
without holding a write-mutex.

Change-Id: I3a3a64597f69b7df205043c567a51fe509247826
 2015-12-13 19:41:07 +03:00
Leo Yuriev
dec88f8c35 mdbx: fix double-free on thread-destroy. 
Seems this is fixes the https://github.com/ReOpen/ReOpenLDAP/issues/60

Change-Id: I29830a1b9cec0285edc976e6892678cd38e4445c
 2015-12-13 19:40:58 +03:00
Howard Chu
d0a0b096ee mdbx: backport - Cleanup C_DEL flag usage. 
Only set it if the cursor's current position was deleted

Change-Id: I4c4c2fa157b73042419cb7b7e39e280a1eca155a
 2015-11-25 19:08:26 +03:00
Leo Yuriev
2a6bfa56f0 mdbx: backport - more for cursor tracking. 
Includes:

 - ITS#8321 deinit empty cursors
   Always unset C_INIT flag if the cursor's target DB has been deleted

 - ITS#8321 Fix mdb_cursor_set
   Always reinit mc_pg[0] if cursor is not C_INITIALIZED
   It might have a stale value when using nested txns

 - ITS#8321 mdb_put cursor needs tracking too

 - ITS#8321 page_touch - don't fixup the cursor we just touched

 - ITS#8321 More cursor fixup
   Based on page_touch fixup from ITS#7594 but expanded:
   make sure sub-cursors agree with main cursors.

 - ITS#8321 cleanup unused var

Change-Id: I4b825e20e9d42d3166052e9b3e5bd0ac33b70e85

ITS#8321 fix ambiguity in cursor_put fixup

After delete/add of a node, other nodes may no longer be
pointing at the data they intended. This can confuse subsequent
fixups.

Change-Id: Id43406a9828b440735835b024e94e9b2d5a17693
 2015-11-25 19:08:14 +03:00
Howard Chu
3eb38d2f1b mdbx: backport - ITS#8323 Fix nested commit. 
Must remove our spilled pages from parent's dirty list

Change-Id: Ic37bcea4975801e48832968ea38050064a581d21
 2015-11-25 18:39:31 +03:00
Hallvard Furuseth
3e74ab2aee mdbx: backport - CURSOR_TMP_[UN]TRACK() -> WITH_CURSOR_TRACKING(). 
Change-Id: I008b7db829765889fd63900b802f57eca0c6cd20
 2015-11-25 18:09:11 +03:00
Leo Yuriev
aeea7ebb08 mdbx: backport - ITS#8321 a lot for cursor tracking. 
Multiple bugs were fixed in the cursor fixups which
adjust other open cursors in response to various write ops.

Includes:

 - ITS#8321 Fix del/dupsort.
   When deleting a dupsort key, if other cursors pointed at that key,
   set them to uninit'd, not EOF. They no longer have anything to
   point at.

 - ITS#8321 don't skip fixups on splitting cursors.
   Adjustments can't be skipped, in recursive calls each level must
   fixup their own level.

 - ITS#8321 fix mdb_cursor_chk().
   It was reporting spurious errors due to uninit'd cursors

 - ITS#8321 fix mdb_cursor_shadow().
   Set a valid txn so that cursor fixup code works on the shadows

 - ITS#8321 fix mdb_cursor_put.
   Ignore sub-cursors that shouldn't be fixed up

 - ITS#8321 track temporary cursors.
   In rebalance/split operations, temporary cursors need to be visible
   to propagate fixups

 - ITS#8321 simplify page_split fixups.

 - ITS#8321 reorganize page_split fixups.
   DUPFIXED fixups needed to occur after separator update.
   MDB_RESERVE handling moved after split fixup.

Change-Id: I0c04acf54ebf6e84f32996b5723ec6fafb983ad9
 2015-11-23 10:09:20 +03:00
Howard Chu
0a97fbcbab mdbx: backport - ITS#8300 more for prev commit. 
Just tell explicitly which direction we moved/merged from

Change-Id: Ib1868003d30f3afe71f105c2750253bbc6059610
 2015-11-23 10:07:49 +03:00
Howard Chu
2154b585c6 mdbx: backport - Silence some valgrind uninit warnings. 
Change-Id: Ie26d7bd08a3a4d4ceb833093a9117f1ebaca6cb0
 2015-11-23 10:07:49 +03:00
Howard Chu
90fdef7a6a mdbx: backport - Refix root split check from 5da67968afb599697d7557c13b65fb961ec408dd. 
Change-Id: If012ddcf223a3312bbe13c4b24d776b488ed3772
 2015-11-23 10:07:49 +03:00
Howard Chu
6ba0b8b467 mdbx: backport - ITS#8316 cursor fixup in page_merge. 
Deleting the merged page requires bumping down other ki's
of the page's parent.

Change-Id: Ifc94e26b8755ede2400521556556a6824bc2c62b
 2015-11-23 10:07:49 +03:00
Leo Yuriev
bf81e86d93 mdbx: prevents use the env after a fork(). 
Change-Id: I9c86500ac008a7be7eb16aeff2610fa5cfa22b84
 2015-11-22 17:48:30 +03:00
Howard Chu
7e2000ef7a mdbx: backport - ITS#8315 fix ovpage_free. 
Keep dirty_room sync'd with dirty_list

Change-Id: I9e52a72df95ffb504740e8daecf65b62970e9f25
 2015-11-19 20:44:49 +03:00
Howard Chu
12cd2361e7 mdbx: backport - ITS#8313 more for ITS#8062. 
dummy flags must be init'd due to 3d46d550

Change-Id: I3d543bd3e059da9b007f1e752f20171acc183679
 2015-11-19 20:44:44 +03:00
Hallvard Furuseth
86abc397e8 mdbx: backport - ITS#8312 Fix loose pages in commit(nested txn). 
Change-Id: Ie335dcff0c87cfc13abf9b937f5d058d3ea9d841
 2015-11-19 20:44:13 +03:00