75494c08b4
ITS#7772 Reduce spurious sub-page growth.
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mdb_cursor_put(): Use free sub-page space added by a
previous put(existing DUPSORT item), if any.
Tweak NUMKEYS code to avoid a new signedness warning.
11 years ago
46de4ab84c
ITS#7665 Drop lmdb.h doc on non-overlapping flags.
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It was inaccurate and misplaced. Verify it in mdb.c instead.
11 years ago
c91f38160c
Drop UNLOCK_MUTEX_R() on mdb_reader_pid() error
11 years ago
4c8f57615c
Fix commit "Raise safe max MDB_MAXKEYSIZE."
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I.e. d69d2ce230
11 years ago
a2ed03642c
Replace MDB_node.mn_offset[], to ease debugging.
11 years ago
2ce9ffa003
Comment MDB_node, mdb_page_unspill, mdb_update_key
11 years ago
7e453c9763
Fix mdb_reader_list() and its spec.
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It and the MDB_msg_func can now return >= 0 for success.
Always return any MDB_msg_func() error result.
11 years ago
a58fd16ae5
Support dynamic max MDB keysize.
11 years ago
d69d2ce230
Raise safe max MDB_MAXKEYSIZE.
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Use a sub-DB for DUPSORT item #1/#2 per key if needed: Not a sub-
page too big for a node, nor an overflow page (which not all DUPSORT
code checks for). Move "insert" code, to avoid non-loop goto upwards.
(This is the commit which needs the change to xdata.mv_size in
commit 9d6e4a9163
11 years ago
734bc7e6ad
Relax MDB_MAXKEYSIZE for existing data.
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Handle keys stored by a liblmdb with a bigger MDB_MAXKEYSIZE.
mdb_get/mdb_del(absent key bigger than our MDB_MAXKEYSIZE)
now return MDB_NOTFOUND instead of MDB_BAD_VALSIZE.
11 years ago
a8de10d148
ITS#7589 Fix me_nodemax and related node sizes.
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Change me_nodemax to not count the mp_ptrs[] entry. That's mostly
how it was used. Compare node sizes ">" me_nodemax instead of ">=".
The ">=" was a workaround for confusing sizes with and without the
mp_ptrs[] entry, but broke for nodes with size (old me_nodemax-1).
Explicitly make me_nodemax even. An odd value could break the
comparisons. It was even anyway because MDB_MINKEYS == 2.
11 years ago
6808abe770
ITS#7589 Fix delete(uneven-sized MDB_DUPFIXED data).
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Do not give uneven sizes to the sub-page and the node it lives in.
11 years ago
c0858e6d93
put(MDB_MULTIPLE): Skip existing item cleanly.
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Don't set dkey.mv_size if mdb won't clear it before next iteration.
11 years ago
fcb0d09598
Add EVEN(): Micro-optimize "up to multiple of 2".
11 years ago
753356a38a
Warning cleanup.
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Drop unused computed/assigned values.
mdb_page_alloc(): Make "mop_len>0 implies mop!=NULL" provable.
11 years ago
1ffb5e1cba
Fix GET_BOTH_RANGE
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On near match, return the matched data.
11 years ago
b77689f975
ITS#7756 keysizes were wrong in mdb_update_key
11 years ago
f6d8dc4e76
Windows/Win64/MSVC tweaks
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Silence warnings, fix broken MinGW64 definitions, etc.
11 years ago
509a197728
Change default mem init behavior
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Init malloc'd memory by default, use #MDB_NOMEMINIT to disable.
Bump version to 0.9.10
11 years ago
92f71f50f9
Add MDB_CLEANMEM option.
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Initialize unused portions of DB pages, for security or to silence
checkers like Purify and Valgrind. Like BDB configure --enable-umrw.
11 years ago
fc87d405f1
Fix MDB_MAXKEYSIZE doc: Account for MDB_DUPSORT.
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A node may need room for [key, subpage with 2 items] = 3 keys.
11 years ago
9d6e4a9163
ITS#7713 Handle bigger OS page sizes
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Use DB page size = min(32k, OS pagesize). Previous limit was 8k
(MDB_MINKEYS*MDB_PAGESIZE).
Handle DB pagesize < OS pagesize. That's an I/O pessimization,
but transactions remain atomic: Only writing the MDB_meta must
be atomic, and it fits in one OS page.
Don't truncate desired subpage size: Asssign it to a size_t
(mv_size), not an uint16_t (mp_upper).
11 years ago
25d370cb2e
mdb_cursor_put(): Factor out code. Kill a label.
11 years ago
550bbe3788
Fix prev commit, cursor depth comparison
11 years ago
4a1717708c
Fix cursor_del0 cursor fixup
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Skip cursors that aren't as deep as current cursor
11 years ago
8c9a26c90d
More for #7589
11 years ago
34459e0585
ITS#7589 another mdb_page_split fix
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Tweak split_indx check, go one slot further.
11 years ago
e31983c723
ITS#7736 fix regression in ITS#7733 patch
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In d8eccb353b
11 years ago
d8eccb353b
ITS#7733 check cursor index before cursor_del
11 years ago
742a078ea5
ITS#7734 Add MDB_NORDAHEAD to CHANGELESS.
11 years ago
b86f08e9d6
Add mdb_env_get_fd()
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Return the environment's filedescriptor. Useful when the caller
is doing their own locking.
11 years ago
dddc7a385b
Fix 01dfb2083d
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USE_POSIX_SEM must define USE_HASH
11 years ago
ab9b08f8af
ITS#7725 add MDB_NORDAHEAD flag for env_open
11 years ago
5a9ddfd289
ITS#7589 silence warnings
11 years ago
2211fb15db
ITS#7589 Fix typo in prev commit
11 years ago
400e21370b
ITS#7589 Cleanup unneeded vars in prev patch
11 years ago
310b656a2e
ITS#7589 avoid wasting space in mdb_page_split
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Also, check the split point on branch pages as well as leaf pages.
11 years ago
01dfb2083d
Add MDB_USE_HASH
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There may be other uses for it besides semaphore names.
11 years ago
940f5cb373
ITS#7722 fix page_merge for collapsing root
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Other cursors being fixed up are not necessarily height 1.
11 years ago
bf0e97aa0e
ITS#7718 invalidate cursor when DB gets emptied
11 years ago
d327a36ad8
Fix mdb_env_set_mapsize()
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Don't allow shrinking below minimum size for an already open env.
11 years ago
2520247ba1
ITS#7715 always set filesize for WRITEMAP
11 years ago
9f7ae8925f
Add Caveat: Readers need write access. Whitespace.
11 years ago
0f9b79e12c
Maintain MDB_cursor.mc_top
11 years ago
99ea7669a3
mdb_cursor_sibling(): Fix error result
11 years ago
8f075595a1
mdb_node_add(): Plug page leak when MDB_PAGE_FULL.
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Do not fail after mdb_page_new() succeeds.
11 years ago
3a1d73daff
Optimize code holding reader mutex
11 years ago
3d67838a59
Set MDB_xcursor DB_DIRTY, clear md_name.
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Both were unused and md_name was unmaintained -- except
mdb_cursor_touch(xcursor) would abuse md_name as a key to
touch MAIN_DBI if it could somehow get passed ! DB_DIRTY.
11 years ago
07dc79a7c3
Set subDB DBI=parent DBI, fix MDB_DUPSORT delete.
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xcursor DBIs were parent DBI+1 for debugging. Instead output
-(parent DBI). Fixes a crash in mdb_cursor_del0()'s xcursor
tracking, it forgot to subtract 1 for C_SUB cursors.
11 years ago
79eac42c0f
s/MDB_NORDLOCK/MDB_NOLOCK/
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Leave all lock management to the caller.
11 years ago
Hallvard Furuseth