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
7449ca604c
Bump to 0.9.9
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
a1685c3ef7
More doc for MDB_NORDLOCK
11 years ago
f739940547
Add MDB_NORDLOCK to omit all reader table usage
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Calling app wants to manage its own locking.
11 years ago
e3f6c152c5
Drop unneeded code.
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MDB_txn.mt_toggle: Use (mt_txnid & 1) instead.
Drop error checks which will be repeated.
mdb_cursor_set(): Turn assert into if/return to match the above.
mdb_cursor_del(): 'flags' are now used as bitflags.
11 years ago
2980bd30f5
Clean up and simplify mdb_page_search().
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Only named DBs can have DB_STALE, and they do not use MDB_PS_MODIFY.
Replace magic key values with flags. Drop duplicated comments at
mdb_page_search_root() vs. mdb_page_search(), and rephrase.
11 years ago
31cfca9316
Tweak MDB_DEBUG output
11 years ago
7bdb5be0b5
Rename SWAP() to avoid conflict with sqlightning.
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Happened since sqlightning #includes mdb.c, midl.c.
11 years ago
52cb8b3417
mdb_page_unspill(): Rename local vars.
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The names have caused bugs, "txn" was treated as
the current transaction.
11 years ago
8e1d10e828
ITS#7515 Fix mdb_page_unspill() in nested txn.
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Malloc a page in this txn, not in a parent.
11 years ago
a3b3482854
ITS#7515 Fix mdb_txn_commit(nested txn with spills).
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Catch malloc error.
Fix hunt for dirty vs spilled pages: Don't leave x at a deleted pageno.
Cleanup: Factor out variables, squash pages already marked for deletion.
11 years ago
bc48a40621
ITS#7515 Fix mt_dirty_room in nested txns.
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Fix description & code: Also ignore dirty pages hidden by
spilled pages, as they won't merge into our dirty_list.
Update it in mdb_page_flush() instead of mdb_page_spill().
11 years ago
cfe262dce9
ITS#7515 mdb_pages_xkeep(): Careful about xcursors.
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Don't prod sub-pages or pages referring to uninitialized xcursors.
11 years ago
5b96d68faf
mdb_pages_xkeep(): Reformat, use common flag mask
11 years ago
5b21307f29
Update MDB documentation and comments.
11 years ago
3335b25834
ITS#7682 mdb_env_copy(): Avoid Linux O_DIRECT bug.
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Use fcntl() to set the flag. Linux open(,O_DIRECT...) can create
the file even on failure, if the filesystem lacks O_DIRECT support.
11 years ago
912e09fd04
ITS#7681 fix 18a07eb7c2
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Set rc=0 when taking the SET_RANGE branch
11 years ago
0144da6eab
ITS#7701 fix mdb_rebalance
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Must copy tmp cursor back to real cursor when merging into tmp cursor.
11 years ago
0f842a2710
Release 0.9.8
11 years ago
Howard Chu