a35f9b2a53
Remove mdb data races. Use (txnid_t)-1 as "no ID".
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Avoid race between numreaders++ and reading numreaders at cleanup. Make
the un-mutexed reset of reader table entry, atomic: Reset mr_pid only.
Instead check mr_pid != 0 in mdb_page_alloc()'s scan for readers.
(txnid_t)-1 as "no ID"-mark avoids a check for mr_txnid != 0.
The scan can stop when seeing an old reader.
12 years ago
38cc1e96b4
Save pid in MDB_env instead of repeating getpid().
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An open MDB environment does not survive or catch fork(),
so repeating getpid() was pointless.
12 years ago
20a216fcc9
MDB_WRITEMAP needs no DSYNC descriptor (me_mfd)
12 years ago
588a84a5ae
ITS#7363 Preprocessor namespace cleanup.
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Rename USE_POSIX_SEM to MDB_USE_POSIX_SEM.
Separate MDB_FDATASYNC from MDB_USE_POSIX_SEM.
12 years ago
8bb10add24
More for ab04c50a32
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Fix typos, error code ranges
12 years ago
acbff5b1ea
Add mdb_cursor_renew()
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Allow cursors on read-only txns to be reused with later txns.
12 years ago
076b2b36a9
Shared lib should depend on pthread
12 years ago
c542442c9f
Add MDB_SET_KEY cursor op
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Overwrites the passed in key with the DB's key
12 years ago
ab04c50a32
ITS#7383 More explicit error codes
12 years ago
48ef27b6f5
ITS#7385 fix mdb_page_split (again)
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More for d793594173
12 years ago
de77882898
Update comments, bump version
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Note read-write vs read-only mmap tradeoffs.
12 years ago
2e677bcb99
msync should default to fully synchronous
12 years ago
1c733bdc4e
Add msync support for WRITEMAP option
12 years ago
d8a89464cd
Add MDB_WRITEMAP to use a writable mmap
12 years ago
14a08f877f
More for 57b5fbea49
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Fix abort of child txn
12 years ago
4608cd9552
libmdb: Fix P_INVALID when pgno_t != unsigned long
12 years ago
3e3c785034
libmdb: Check sem_open() against SEM_FAILED.
12 years ago
4bc18a5dd3
In mdb_audit, change assert to fprintf
12 years ago
85ae5011e7
Fix mdb_audit()
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due to a0993354a6
12 years ago
bd92b570a8
ITS#7369 mdb_stat: cleanup in case something went wrong.
12 years ago
a2d1b42e39
ITS#7369 abort txn before exiting
12 years ago
916995236e
ITS#7364 also close the mutexes as needed
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Otherwise a process that opens and closes an env more than once
will leak mutex handles. (WIN32/BSD)
12 years ago
46cf442700
ITS#7364 Remove POSIX semaphores when the last user closes the mdb environment.
12 years ago
9f983b7999
ITS#7363 Use posix semaphores on apple and bsd systems.
12 years ago
f114fec545
Loop thru all DBs and show their stats
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This is quick and dirty, should be integrated into mdb_stat.
12 years ago
d53644f682
Minor cleanup
13 years ago
d1120fbccc
Write optimization: avoid copying unused portions of pages.
13 years ago
234cd9dfb5
Fix txn_commit error check
13 years ago
23219ed32a
Fix 205bb17793
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Ignore current cursor pos if it's out of bounds.
13 years ago
d1a7fa267b
Update sub-DBs before updating free list
13 years ago
d3990eb2f8
Append mode should also detect keys that are too small
13 years ago
5da67968af
Fix root split check in mdb_page_split
13 years ago
205bb17793
Skip unneeded calls to mdb_page_get in mdb_page_search
13 years ago
ccc4d23e74
Leave extra space when creating a fake page
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Minimizes the number of memcpy's if additional dups are stored.
13 years ago
05ec98d119
Append mode still needs to detect duplicates
13 years ago
14fb1f59c7
Append tweaks, page_split fixes
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Append mode now does no key comparisons, input must be in sorted order.
page_split was not updating cursor parents correctly.
13 years ago
7e9a6134fd
Make sure cursor's DB is init'd if STALE.
13 years ago
a0993354a6
Don't use env-private copy of DB root nodes.
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Just lookup the DB roots as needed. When many DBs are in use,
most of the copies won't be referenced in a given txn, and
there's a bad race condition in the copy routine.
13 years ago
0ea56294f1
Fix darwin sem_open() names
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Must begin with '/'
13 years ago
1a9775dc5a
Fix ID -> MDB_ID due to 20baad4a20
13 years ago
248fd1c7b8
Windows thread callback support
13 years ago
e562f53e10
Drop me_toggle, unused
13 years ago
179c44e7da
Revert "libmdb: Do not use the MDB_txbody.mtb_txnid field."
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This reverts commit 4a0b30499c
13 years ago
433105f09b
Fix: avoid direct reference to meta pages
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Relevant info should be copied during txn_begin only.
13 years ago
df7ddb6bf4
Add MDB_NOMETASYNC env option.
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Just a trial. This may not make sense if we decide to split the
meta pages into their own separate file, to allow meta traffic to
reside on a separate spindle.
13 years ago
38560c2517
Tweak b802bcf704
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Clarify prev commit, fix Doxygen comments broken by earlier changes
13 years ago
b802bcf704
Partial revert of 13c663f666
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Don't re-use free pages so soon; that leaves us vulnerable to
DB corruption if data syncs successfully but meta doesn't.
13 years ago
a334257800
Tweak prev commit, use first unused slot
13 years ago
4cabb24b83
Fix mdb_open, re-use closed dbi slots
13 years ago
eeec509150
ITS#7266 fix rebalance for LEAF2 pages
13 years ago
Hallvard Furuseth