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149 Commits

Author SHA1 Message Date
Hallvard Furuseth
62e4c4f9d0 Don't #define _GNU_SOURCE if already defined. 2013-06-13 08:58:24 +02:00
Hallvard Furuseth
c37a11a424 More for ITS#7620 Fix mdb_ovpage_free(). 
Do not binary-search dirty_list, it is unsorted when MDB_WRITEMAP.
Catch errors. In nested txns, put the page in mt_free_pgs after
all since pages dirty in a parent txn would add complexities.
 2013-06-13 08:25:25 +02:00
Howard Chu
2d0b362b6f Partial revert c2cac4588a 
MDB_NEXT was fine before, duh.
 2013-06-12 08:41:32 -07:00
Hallvard Furuseth
99427aa7de Drop me_pgfree, add mdb_freelist_save(). 
Split up saving me_pghead, to make me_pgfree unneeded. Also mf_pghead
is now a midl. Needed after e7f6767ea8
("Return fresh overflow pages to current pghead").
Tweak MDB_DEBUG freelist output, make it ascending.
 2013-06-12 17:20:42 +02:00
Howard Chu
c2cac4588a Fix CURSOR_NEXT/PREV on emptied DB 2013-06-11 17:13:08 -07:00
Howard Chu
bcb67dd22f Make sure mdb_stat() gets valid data 2013-06-08 14:10:08 -07:00
Howard Chu
e7f6767ea8 Return fresh overflow pages to current pghead 
And remove them from the current dirty list.
 2013-06-06 16:44:02 -07:00
Howard Chu
aff123ba11 ITS#7594 more for subDB cursor fix 2013-06-05 16:13:43 -07:00
Howard Chu
3b623d66e1 ITS#7594 better fix 
Update the subDB cursor, don't invalidate it
 2013-06-05 15:23:54 -07:00
Howard Chu
65faa5ed7e tweak mdb_copy, trap signals 2013-05-30 15:56:30 -07:00
Howard Chu
d29b9600e6 Windows portability fixes for prev commit 2013-05-30 15:33:59 -07:00
Howard Chu
f207c50b15 Add warning about interrupting copy 2013-05-30 13:13:33 -07:00
Howard Chu
ad573fe125 Fix prev commit 2013-05-30 13:09:28 -07:00
Howard Chu
c68e5ae9be Add mdb_env_copyfd() 
Allow writing backup to an already opened file handle, for piping
to tar/gzip/ssh/whatever.
 2013-05-30 13:06:12 -07:00
Howard Chu
4b49291653 Add _M_IX86 macro for MSVC 2013-05-25 10:16:55 -07:00
Howard Chu
e31c7d3b31 ITS#7594 De-init other subcursors in page_touch 2013-05-23 12:17:21 -07:00
Hallvard Furuseth
92fe958805 Drop unused liblmdb MIDL-range support. 2013-05-21 23:58:57 +02:00
Hallvard Furuseth
feaeab0c04 Factor out mdb_find_oldest,mdb_dlist_free,dirty_list. 
Do not rescan reader table (mdb_find_oldest) after "goto again".
Skip clearing dirty_list[nonzero].mid in mdb_dlist_free(); it
was not done in mdb_reset0() anyway.
 2013-05-21 23:55:13 +02:00
Hallvard Furuseth
5ea1cd8f6d mdb_stat cleanup. 
Exit with success when there was no failure.
Do not use data containing NUL as a DB name (which is a C string).
 2013-05-21 23:48:27 +02:00
Hallvard Furuseth
a1b16ce5f0 ITS#7598 Tweak MDB_<NEXT/PREV>_NODUP,fix mdb_stat. 
MDB_NEXT_NODUP, MDB_PREV_NODUP: Allow for non-MDB_DUPSORT databases.
No mdb.c code changes needed.

mdb_stat.c: Use MDB_NEXT_NODUP, to avoid a crash with a DUPSORT mainDB.
 2013-05-21 22:44:51 +02:00
Hallvard Furuseth
1b6d7ee7e1 ITS#7598 mdb_dbi_open(named DB): Check mainDB flags. 
Reject attempts to open named databases if the main
database has flag MDB_DUPSORT or MDB_INTEGERKEY.

DUPSORT would require an xcursor for the DB, INTEGERKEY
would expect the DB name to be a binary integer.
 2013-05-21 19:04:52 +02:00
Hallvard Furuseth
a2ce25482a ITS#7515 Fix nested txn touch of subpage/ovpage. 
mdb_page_touch(): Don't touch a subpage, replacing with non-subpage.
mdb_cursor_put(): Don't overwrite ancestor txn's dirty overflow page.
 2013-05-20 23:12:52 +02:00
Hallvard Furuseth
5bdf2aae6e Tweak mdb_page_malloc(),mdb_page_get() semantics. 
mdb_page_malloc(): Add "number of pages" parameter.
mdb_page_get(): Add output param for how page was found.
Do not set return params on error.
mdb_cursor_put(): Catch mdb_page_get() error.

Prepares for next commit, no change in caller behavior other
than on mdb_page_get error.
 2013-05-20 23:12:26 +02:00
Hallvard Furuseth
2eb50b1d2e More ITS#7589 followup: OVPAGES() -> mp_pages. 2013-05-19 19:08:07 +02:00
Hallvard Furuseth
e4ce404992 More ITS#7589: Fix prev commit. 
mp_pages gives #pages in the ovpage. OVPAGES() no longer does.
 2013-05-19 18:38:13 +02:00
Hallvard Furuseth
0cdd9dffdd ITS#7589 mdb_cursor_put(): Update ovpage nodesize. 
Update the nodesize when overwriting an overflow page.
As before, do not attempt to shrink the page.
 2013-05-17 19:31:17 +02:00
Howard Chu
833cd905b7 Include <netinet/in.h> for Solaris 8 
Needed for <resolv.h>, which is needed for BYTE_ORDER.
 2013-05-15 11:50:40 -07:00
Howard Chu
7233bc295b Fix mdb_page_split - nested split 
If updating a page's separator triggers a split in its parent,
we may have missed adjusting the parent's cursor position.
 2013-05-14 16:57:50 -07:00
Howard Chu
1105aa35ba Doxygen cleanup 2013-05-13 12:36:47 -07:00
Howard Chu
9ebd5992c9 Fix 66c839f029 
Forgot #include <errno.h>
 2013-05-10 05:56:16 -07:00
Howard Chu
66c839f029 Refactor mdb_midl_append, add mdb_midl_grow() 2013-05-09 17:27:29 -07:00
Hallvard Furuseth
2d6aed7537 ITS#7515 Fix nested transaction error handling. 
mdb_txn_begin(): Do not free(mt_free_pgs), it needs mdb_midl_free().
mdb_txn_commit(): Catch commit(child) error.
 2013-05-05 15:13:31 +02:00
Hallvard Furuseth
521fdb00cc Fix mdb_env_close(unopened MDB_env). 
Do not try to scan me_dbxs in a closed/never-opened MDB_env.
Broken by 7d643d3acb
and 151c416b46.
 2013-05-05 14:26:05 +02:00
Hallvard Furuseth
0b9a208530 Simplify/cleanup mdb_cursor_init, C_ALLOCD. 
No real change.
mdb_cursor_init() checks if it needs mx, so pass it unconditionally.
Set C_ALLOCD for shadow cursors, for clarity. (It was always set as
it should anyway from the origin cursor, which would have C_ALLOCD.)
 2013-05-04 12:53:43 +02:00
Hallvard Furuseth
f355de0298 MDB warning cleanup. 
Unused function when MDB_DEBUG. Unused 'excl' param.
 2013-05-04 12:41:28 +02:00
Hallvard Furuseth
b389341b4b mdb_dcmp(): Assume the database has MDB_DUPSORT. 
There was little point in returning EINVAL when not: Comparing (A,B)
and (B,A) would claim (A > B && B > A), which could confuse callers.
 2013-05-04 12:34:49 +02:00
Hallvard Furuseth
91a93004ce Update MDB doc: Cursors, DB handles, data lifetime 2013-05-04 12:34:20 +02:00
Hallvard Furuseth
385889b0be Allow mdb_cursor_close() after readonly txn ends. 
Catch mdb_cursor_renew(write txn's cursor).  Add flag C_UNTRACK, so
mdb_cursor_close need not peek inside a possibly-freed readonly txn.
 2013-05-04 12:34:02 +02:00
Hallvard Furuseth
17ffe9c992 Close cursors when commit(writer). Factor out code. 
Close remaining cursors when committing a write txn. The doc says this
happens, and it avoids cursor tracking when updating mainDB + freeDB.

Rename mdb_cursor_merge() -> mdb_cursors_close() for code reuse,
and add a merge option.  Simplify its loop a bit.

Factor out cleanup of DBIs.
 2013-05-04 12:33:06 +02:00
Hallvard Furuseth
dca0cef678 Plug txn leak and MDB_NOTLS slot leaks on error. 
On mdb_env_copy() error: Abort the txn.
On mdb_txn_renew0() error: Release new MDB_NOTLS reader slot.
 2013-05-04 12:31:31 +02:00
Hallvard Furuseth
f45d40a88b Cleaner "Support mdb_txn_abort(a reset txn)". 
Redo 8a562f560e so !mt_dbxs indicates
"txn was reset", so mt_numdbs gets one magic value instead of two.
 2013-05-04 10:03:19 +02:00
Hallvard Furuseth
151c416b46 Update fixes for dbi_open/close, ITS#7515. 
Reset me_dbflags[dbi] when closing DBI, to get rid of MDB_VALID flag.
mdb_env_close(): Re-fix DB-name memleak. DBIs > me_numdbs may exist.
 2013-05-04 10:03:19 +02:00
Howard Chu
21da623bf4 Allow reading freelist while working on it 
The circular dependency issues appear to have been resolved.
Still, need to watch closely, maybe revert this change if
problems arise.
 2013-05-01 22:45:15 -07:00
Howard Chu
568c22c4cc Avoid assert 
Due to underfilled branch page. We're in the process of merging/moving
nodes to it because we already know it's underfilled. Took this approach
rather than just removing the assert in mdb_page_search_root, because
that assert may yet catch other situations we don't know about.

(Although, it has been there since the original commit of mdb.c and
has never triggered any other times...)
 2013-04-30 21:09:09 -07:00
Hallvard Furuseth
37bd48a618 Plug mdb_cursor_renew() memleak 2013-04-30 21:06:36 -07:00
Howard Chu
c057582573 Fix MDB_LAST, reset cursor index 2013-04-20 19:30:06 -07:00
Howard Chu
da3e4d78d6 Fix typo from 7aba5f5ab9 2013-04-20 09:47:33 -07:00
Hallvard Furuseth
9dd61011fe Tweak comments/readability. 
Show MDB_PERSISTENT/MDB_VALID/DB_VALID relationship.
mdb_txn_renew0(): Remove obsolete "cannot fail" comment.
 2013-04-18 08:00:03 +02:00
Howard Chu
272e4e98ad Add MDB_NOTLS envflag. 2013-04-18 04:17:03 +02:00
Hallvard Furuseth
afe488d8a9 Catch MDB txn reuse/sync errors. 2013-04-18 04:16:07 +02:00