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Author SHA1 Message Date
Howard Chu
8c1d95a438 Fix f97552a83a 
Causes Bus Error on SPARC
 2013-03-11 10:28:25 -07:00
Howard Chu
f80171e079 Check for MADV_RANDOM 
Android supports madvise but not posix_madvise
 2013-03-11 06:04:54 -07:00
Howard Chu
9c4ee82297 ITS#7377 Fix c0f3d9b9a8 
Add missing parens
 2013-03-11 05:59:07 -07:00
Howard Chu
b1da555c4c Turn off readahead on main mmap 
It's harmful when the DB is larger than RAM.
 2013-03-11 05:49:14 -07:00
Howard Chu
d74330128a ITS#7536 fix mdb_rebalance 
A page must always have at least 2 keys (unless it's a root page)
 2013-03-06 15:10:22 -08:00
Howard Chu
6dab37f2ac Use CC/LDFLAGS to link the shared lib 2013-02-25 05:06:51 -08:00
Howard Chu
d8b407d9a2 Install manpages too 2013-02-25 02:02:15 -08:00
Howard Chu
26e4222ffb Delete obsolete @todo 
We do it now... (coalescing freelist entries in page_alloc)
 2013-02-24 23:43:36 -08:00
Howard Chu
58e27b6c20 Add sample apps for comparison/education purposes 2013-02-24 23:43:18 -08:00
Howard Chu
66c9f03055 Add $(DESTDIR) to make install target 2013-02-25 06:50:51 +00:00
Howard Chu
3394bac2c0 Update error code instances 2013-02-20 05:08:52 -08:00
Hallvard Furuseth
80cd881184 Tweak MDB_INCOMPATIBLE description 2013-02-20 12:19:45 +01:00
Hallvard Furuseth
fbd76c44e4 Tweak prev commit: Restore if-test as an assert 2013-02-20 09:08:41 +01:00
Hallvard Furuseth
208e5c614d ITS#7515 Fix mdb_txn_commit(nested txn). 
Don't modify the parent txn until the current txn cannot fail.
Don't assume new dirty child pgnos > dirty parent pgnos.

Page alloc/touch: Fail if child+parent dirty pages would exceed
dirty_list's maxsize. Avoids an error situation in commit.
 2013-02-19 18:44:10 -08:00
Hallvard Furuseth
f43ae20be7 ITS#7512 Plug mdb_txn_abort(nested txn) page leaks. 
Also catch mdb_cursor_shadow() errors.
 2013-02-19 22:03:04 +01:00
Hallvard Furuseth
f97552a83a Check DB flags when refreshing a stale MDB DBI. 
It's hairy to figure out when a DBI is valid. Catch destructive
user errors, and flags which another process changed under us.
 2013-02-19 22:02:37 +01:00
Hallvard Furuseth
2dbb8bb833 mdb_cursor_prev,mdb_cursor_next: Fix return value. 
Return mdb_node_read()'s return value if it fails, not 1.
(Can happen if mdb_page_get() fails and NDEBUG is #defined.)
 2013-02-19 22:02:15 +01:00
Hallvard Furuseth
e4af9ee5da ITS#7515 mdb_dbi_open(): Also open in parent txns. 
This makes aborting nested and non-nested txns more
similar: The new DBI is available to the surrounding
context (parent txn and MDB_env respectively).
 2013-02-19 22:01:29 +01:00
Hallvard Furuseth
4b67270374 mdb_page_alloc(): Handle freeDB txnid range holes. 
A txn writes no freeDB entry if previous txn dropped mainDB and a read
txn prevents freelist entry reuse. This surprised mdb_page_alloc (and
mdb_txn_commit too before 65c053a6e7).
 2013-02-19 21:17:33 +01:00
Hallvard Furuseth
f19655eabc ITS#7517 Document that dirty DBs may not be closed 2013-02-19 21:15:26 +01:00
Hallvard Furuseth
8ad25001ff ITS#7485 Document key/data size limits in lmdb.h. 
mdb.c already describes them. The user doc should too.
 2013-02-19 21:14:23 +01:00
Hallvard Furuseth
ef25056cfb Revert "ITS#7515 update parent's mt_next_pgno on child commit" 
This reverts commit fd4861bf00.
It duplicated earlier code.
 2013-02-17 08:42:14 +01:00
Howard Chu
fd4861bf00 ITS#7515 update parent's mt_next_pgno on child commit 2013-02-17 00:49:53 +00:00
Howard Chu
890f1da3ee Don't limit retries when coalescing freelist 
Try to use whatever's available.
 2013-02-17 00:48:43 +00:00
Hallvard Furuseth
00d7a96bd5 ITS#7515 Fix MDB parent/child txn interaction. 
mdb_txn_commit(child): Copy more state. Copy all of mt_dbs:
Include mainDB, and even freeDB since mdb_drop() can update
it. Don't skip DBs with unchanged root, this could break
when the new was newly opened and the old unused junk.

mdb_page_get(): Search parents' dirty lists.
 2013-02-16 19:11:20 +01:00
Hallvard Furuseth
d90581fa5a ITS#7377 Catch MDB failure updating root pointers. 
"cannot fail" was wrong, it fails at least when exceeding mapsize.
 2013-02-16 19:08:54 +01:00
Hallvard Furuseth
c7db955a94 ITS#7517 Don't save dropped dirty MDB databases. 
mdb_txn_commit's attempt to save the DB could corrupt another DB if
another thread had called mdb_dbi_open and reused the closed DBI.
 2013-02-16 19:08:37 +01:00
Hallvard Furuseth
8e1bbdf0dd mdb_stat -ff[f]: show contiguous page spans. 2013-02-16 19:07:16 +01:00
Hallvard Furuseth
7aba5f5ab9 Add error code MDB_MAP_RESIZED. 2013-02-16 19:06:28 +01:00
Howard Chu
5e59695b8d Don't memmove freelist entry when chunking it 
Just advance the pointer, now that it's no longer a complex struct
 2013-02-15 13:27:50 +00:00
Hallvard Furuseth
52ecd38e18 ITS#7455 Save freelist in single-page chunks 2013-02-15 13:27:50 +00:00
Hallvard Furuseth
1b8bfc5756 Freelist cleanup/streamlining 
Drop unneeded definitions, redundant code.
 2013-02-15 13:27:02 +00:00
Hallvard Furuseth
65c053a6e7 ITS#7512 Fix MDB page leak when malloc error. 
mdb_page_alloc(): Delay moving me_pgfirst,me_pglast
until malloc(MDB_oldpages to hold the IDs) succeeds.
 2013-02-07 08:17:30 +01:00
Howard Chu
e0eb495fb3 Revert "ITS#7515 fix mdb_dbi_open/close" 
This reverts commit 48dc782ea6.
 2013-02-04 10:53:17 -08:00
Howard Chu
744e311939 NULL key is allowed for MDB_CURRENT 2013-02-01 06:19:23 -08:00
Howard Chu
48dc782ea6 ITS#7515 fix mdb_dbi_open/close 
If a DBI handle is opened by a txn that aborts, the DBI handle
should no longer be valid.
 2013-01-31 20:05:48 -08:00
Howard Chu
27aaecc744 ITS#7511 make sure cursor is marked valid after successful put 2013-01-28 18:45:36 -08:00
Howard Chu
9fa0c3bf31 ITS#7505 fix prev commit, partial revert 2013-01-29 01:08:24 +00:00
Howard Chu
0b8ac92b7a ITS#7505 Fix mdb_update_key when key is too big 2013-01-27 18:02:18 +00:00
Howard Chu
cfedb365b4 Fix MDB_CURRENT updating for dupsort items 2013-01-26 18:55:35 +00:00
Hallvard Furuseth
7fdf672041 Update MDB comments: Caveats, flags, etc. 2013-01-16 18:42:57 +01:00
Howard Chu
8e7bb2042b ITS#7485 data sizes limited to 32 bits 
That's all we have space for in a node record.
 2013-01-15 04:28:47 -08:00
Howard Chu
1a0d02c4c4 ITS#7485 more size checks 2013-01-14 13:46:25 -08:00
Howard Chu
25a99d4024 ITS#7485 check maxkeysize in mdb_cursor_put 
Also MDB_MAXKEYSIZE is redefinable at compile time.
 2013-01-14 13:12:15 -08:00
Howard Chu
9e35127f1d One more rename 
Forgot this in 98fe339089
 2013-01-14 12:57:54 -08:00
Howard Chu
53cf2eed90 ITS#7491 check for filled dirty page list 
Very large single transactions will fail. It's not just a problem when
nested transactions are used. We could make this dynamically sized,
but I'm not sure what the point is.
 2013-01-11 11:45:25 -08:00
Howard Chu
fed573cb86 Happy New Year 2013-01-10 02:58:55 -08:00
Hallvard Furuseth
cd80a15474 Delete liblmdb/mfree. It has moved into mdb_stat. 2013-01-09 20:49:43 +01:00
Howard Chu
2a36346b50 ITS#7455 don't give up so soon 
If we're operating on the freelist, see if our current pghead
can satisfy the request before giving up and using new pages.
 2013-01-09 08:30:13 -08:00
Howard Chu
057e068630 Fix typo 2012-12-19 13:20:24 -08:00