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Author SHA1 Message Date
Hallvard Furuseth
fcb0d09598 Add EVEN(): Micro-optimize "up to multiple of 2". 2013-12-11 11:57:12 +01:00
Hallvard Furuseth
753356a38a Warning cleanup. 
Drop unused computed/assigned values.
mdb_page_alloc(): Make "mop_len>0 implies mop!=NULL" provable.
 2013-12-11 11:57:12 +01:00
Hallvard Furuseth
e1266bf331 Clean up mdb_copy. 
Support MDB_NOSUBDIR. Catch more errors.  Write messages
to stderr, not stdout which the data too may be piped to.
 2013-12-11 11:57:12 +01:00
Howard Chu
1ffb5e1cba Fix GET_BOTH_RANGE 
On near match, return the matched data.
 2013-12-04 18:42:49 -08:00
Howard Chu
b77689f975 ITS#7756 keysizes were wrong in mdb_update_key 2013-11-29 17:03:49 -08:00
Howard Chu
f39bceb800 Doc tweak 
Measured perf cost of meminit was 7% worst case on an Intel Core2
system. YMMV.
 2013-11-12 08:10:33 -08:00
Howard Chu
3e40d0c805 Bump to 0.9.10 2013-11-11 20:15:54 -08:00
Howard Chu
f6d8dc4e76 Windows/Win64/MSVC tweaks 
Silence warnings, fix broken MinGW64 definitions, etc.
 2013-11-11 20:08:26 -08:00
Howard Chu
eecbaa5942 Clarify WRITEMAP / NOMEMINIT 2013-11-11 16:35:17 -08:00
Howard Chu
509a197728 Change default mem init behavior 
Init malloc'd memory by default, use #MDB_NOMEMINIT to disable.
Bump version to 0.9.10
 2013-11-11 15:09:32 -08:00
Hallvard Furuseth
92f71f50f9 Add MDB_CLEANMEM option. 
Initialize unused portions of DB pages, for security or to silence
checkers like Purify and Valgrind. Like BDB configure --enable-umrw.
 2013-11-07 23:41:30 +01:00
Hallvard Furuseth
fc87d405f1 Fix MDB_MAXKEYSIZE doc: Account for MDB_DUPSORT. 
A node may need room for [key, subpage with 2 items] = 3 keys.
 2013-11-07 23:38:15 +01:00
Hallvard Furuseth
9d6e4a9163 ITS#7713 Handle bigger OS page sizes 
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).
 2013-11-07 23:38:15 +01:00
Hallvard Furuseth
25d370cb2e mdb_cursor_put(): Factor out code. Kill a label. 2013-11-07 23:38:15 +01:00
Howard Chu
550bbe3788 Fix prev commit, cursor depth comparison 2013-11-07 09:37:48 -08:00
Howard Chu
4a1717708c Fix cursor_del0 cursor fixup 
Skip cursors that aren't as deep as current cursor
 2013-11-06 16:51:21 -08:00
Howard Chu
8c9a26c90d More for #7589 2013-11-04 20:00:55 -08:00
Howard Chu
34459e0585 ITS#7589 another mdb_page_split fix 
Tweak split_indx check, go one slot further.
 2013-10-31 17:31:15 -07:00
Howard Chu
e31983c723 ITS#7736 fix regression in ITS#7733 patch 
In d8eccb353b
 2013-10-31 16:01:49 -07:00
Howard Chu
d8eccb353b ITS#7733 check cursor index before cursor_del 2013-10-28 07:25:54 -07:00
David Wilson
742a078ea5 ITS#7734 Add MDB_NORDAHEAD to CHANGELESS. 2013-10-28 06:58:52 -07:00
Howard Chu
7449ca604c Bump to 0.9.9 2013-10-24 15:57:17 -07:00
Howard Chu
b86f08e9d6 Add mdb_env_get_fd() 
Return the environment's filedescriptor. Useful when the caller
is doing their own locking.
 2013-10-21 10:41:41 -07:00
Howard Chu
dddc7a385b Fix 01dfb2083d 
USE_POSIX_SEM must define USE_HASH
 2013-10-14 09:47:26 -07:00
Howard Chu
ab9b08f8af ITS#7725 add MDB_NORDAHEAD flag for env_open 2013-10-12 16:20:04 -07:00
Howard Chu
5a9ddfd289 ITS#7589 silence warnings 2013-10-12 13:40:28 -07:00
Howard Chu
2211fb15db ITS#7589 Fix typo in prev commit 2013-10-12 13:31:09 -07:00
Howard Chu
400e21370b ITS#7589 Cleanup unneeded vars in prev patch 2013-10-12 13:20:02 -07:00
Howard Chu
310b656a2e ITS#7589 avoid wasting space in mdb_page_split 
Also, check the split point on branch pages as well as leaf pages.
 2013-10-12 09:34:40 -07:00
Howard Chu
01dfb2083d Add MDB_USE_HASH 
There may be other uses for it besides semaphore names.
 2013-10-12 09:28:37 -07:00
Howard Chu
940f5cb373 ITS#7722 fix page_merge for collapsing root 
Other cursors being fixed up are not necessarily height 1.
 2013-10-09 02:24:45 -07:00
Howard Chu
bf0e97aa0e ITS#7718 invalidate cursor when DB gets emptied 2013-10-08 04:43:58 -07:00
Howard Chu
d327a36ad8 Fix mdb_env_set_mapsize() 
Don't allow shrinking below minimum size for an already open env.
 2013-10-04 02:55:34 -07:00
Howard Chu
2520247ba1 ITS#7715 always set filesize for WRITEMAP 2013-10-04 02:46:38 -07:00
Hallvard Furuseth
9f7ae8925f Add Caveat: Readers need write access. Whitespace. 2013-10-04 00:51:58 +02:00
Hallvard Furuseth
0f9b79e12c Maintain MDB_cursor.mc_top 2013-10-04 00:32:35 +02:00
Hallvard Furuseth
99ea7669a3 mdb_cursor_sibling(): Fix error result 2013-10-03 23:59:25 +02:00
Hallvard Furuseth
8f075595a1 mdb_node_add(): Plug page leak when MDB_PAGE_FULL. 
Do not fail after mdb_page_new() succeeds.
 2013-10-03 23:59:25 +02:00
Hallvard Furuseth
3a1d73daff Optimize code holding reader mutex 2013-10-03 23:59:24 +02:00
Hallvard Furuseth
3d67838a59 Set MDB_xcursor DB_DIRTY, clear md_name. 
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.
 2013-10-03 23:59:24 +02:00
Hallvard Furuseth
07dc79a7c3 Set subDB DBI=parent DBI, fix MDB_DUPSORT delete. 
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.
 2013-10-03 23:59:24 +02:00
Howard Chu
79eac42c0f s/MDB_NORDLOCK/MDB_NOLOCK/ 
Leave all lock management to the caller.
 2013-10-03 10:26:44 -07:00
Howard Chu
a1685c3ef7 More doc for MDB_NORDLOCK 2013-10-01 23:36:57 -07:00
Howard Chu
f739940547 Add MDB_NORDLOCK to omit all reader table usage 
Calling app wants to manage its own locking.
 2013-10-01 13:16:38 -07:00
Hallvard Furuseth
e3f6c152c5 Drop unneeded code. 
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.
 2013-09-23 20:21:11 +02:00
Hallvard Furuseth
2980bd30f5 Clean up and simplify mdb_page_search(). 
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.
 2013-09-23 20:21:11 +02:00
Hallvard Furuseth
31cfca9316 Tweak MDB_DEBUG output 2013-09-23 20:20:42 +02:00
Hallvard Furuseth
7bdb5be0b5 Rename SWAP() to avoid conflict with sqlightning. 
Happened since sqlightning #includes mdb.c, midl.c.
 2013-09-23 20:20:05 +02:00
Hallvard Furuseth
52cb8b3417 mdb_page_unspill(): Rename local vars. 
The names have caused bugs, "txn" was treated as
the current transaction.
 2013-09-23 20:13:27 +02:00
Hallvard Furuseth
8e1d10e828 ITS#7515 Fix mdb_page_unspill() in nested txn. 
Malloc a page in this txn, not in a parent.
 2013-09-23 20:13:27 +02:00