d74330128a
ITS#7536 fix mdb_rebalance
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A page must always have at least 2 keys (unless it's a root page)
12 years ago
26e4222ffb
Delete obsolete @todo
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We do it now... (coalescing freelist entries in page_alloc)
12 years ago
80cd881184
Tweak MDB_INCOMPATIBLE description
12 years ago
fbd76c44e4
Tweak prev commit: Restore if-test as an assert
12 years ago
208e5c614d
ITS#7515 Fix mdb_txn_commit(nested txn).
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Don't modify the parent txn until the current txn cannot fail.
Don't assume new dirty child pgnos > dirty parent pgnos.
Page alloc/touch: Fail if child+parent dirty pages would exceed
dirty_list's maxsize. Avoids an error situation in commit.
12 years ago
f43ae20be7
ITS#7512 Plug mdb_txn_abort(nested txn) page leaks.
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Also catch mdb_cursor_shadow() errors.
12 years ago
f97552a83a
Check DB flags when refreshing a stale MDB DBI.
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It's hairy to figure out when a DBI is valid. Catch destructive
user errors, and flags which another process changed under us.
12 years ago
2dbb8bb833
mdb_cursor_prev,mdb_cursor_next: Fix return value.
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Return mdb_node_read()'s return value if it fails, not 1.
(Can happen if mdb_page_get() fails and NDEBUG is #defined.)
12 years ago
e4af9ee5da
ITS#7515 mdb_dbi_open(): Also open in parent txns.
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This makes aborting nested and non-nested txns more
similar: The new DBI is available to the surrounding
context (parent txn and MDB_env respectively).
12 years ago
4b67270374
mdb_page_alloc(): Handle freeDB txnid range holes.
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A txn writes no freeDB entry if previous txn dropped mainDB and a read
txn prevents freelist entry reuse. This surprised mdb_page_alloc (and
mdb_txn_commit too before 65c053a6e7
12 years ago
ef25056cfb
Revert "ITS#7515 update parent's mt_next_pgno on child commit"
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This reverts commit fd4861bf00
12 years ago
fd4861bf00
ITS#7515 update parent's mt_next_pgno on child commit
12 years ago
890f1da3ee
Don't limit retries when coalescing freelist
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Try to use whatever's available.
12 years ago
00d7a96bd5
ITS#7515 Fix MDB parent/child txn interaction.
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mdb_txn_commit(child): Copy more state. Copy all of mt_dbs:
Include mainDB, and even freeDB since mdb_drop() can update
it. Don't skip DBs with unchanged root, this could break
when the new was newly opened and the old unused junk.
mdb_page_get(): Search parents' dirty lists.
12 years ago
d90581fa5a
ITS#7377 Catch MDB failure updating root pointers.
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"cannot fail" was wrong, it fails at least when exceeding mapsize.
12 years ago
c7db955a94
ITS#7517 Don't save dropped dirty MDB databases.
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mdb_txn_commit's attempt to save the DB could corrupt another DB if
another thread had called mdb_dbi_open and reused the closed DBI.
12 years ago
7aba5f5ab9
Add error code MDB_MAP_RESIZED.
12 years ago
5e59695b8d
Don't memmove freelist entry when chunking it
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Just advance the pointer, now that it's no longer a complex struct
12 years ago
52ecd38e18
ITS#7455 Save freelist in single-page chunks
12 years ago
1b8bfc5756
Freelist cleanup/streamlining
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Drop unneeded definitions, redundant code.
12 years ago
65c053a6e7
ITS#7512 Fix MDB page leak when malloc error.
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mdb_page_alloc(): Delay moving me_pgfirst,me_pglast
until malloc(MDB_oldpages to hold the IDs) succeeds.
12 years ago
e0eb495fb3
Revert "ITS#7515 fix mdb_dbi_open/close"
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This reverts commit 48dc782ea6
12 years ago
744e311939
NULL key is allowed for MDB_CURRENT
12 years ago
48dc782ea6
ITS#7515 fix mdb_dbi_open/close
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If a DBI handle is opened by a txn that aborts, the DBI handle
should no longer be valid.
12 years ago
27aaecc744
ITS#7511 make sure cursor is marked valid after successful put
12 years ago
9fa0c3bf31
ITS#7505 fix prev commit, partial revert
12 years ago
0b8ac92b7a
ITS#7505 Fix mdb_update_key when key is too big
12 years ago
cfedb365b4
Fix MDB_CURRENT updating for dupsort items
12 years ago
7fdf672041
Update MDB comments: Caveats, flags, etc.
12 years ago
8e7bb2042b
ITS#7485 data sizes limited to 32 bits
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That's all we have space for in a node record.
12 years ago
1a0d02c4c4
ITS#7485 more size checks
12 years ago
25a99d4024
ITS#7485 check maxkeysize in mdb_cursor_put
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Also MDB_MAXKEYSIZE is redefinable at compile time.
12 years ago
53cf2eed90
ITS#7491 check for filled dirty page list
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Very large single transactions will fail. It's not just a problem when
nested transactions are used. We could make this dynamically sized,
but I'm not sure what the point is.
12 years ago
fed573cb86
Happy New Year
12 years ago
2a36346b50
ITS#7455 don't give up so soon
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If we're operating on the freelist, see if our current pghead
can satisfy the request before giving up and using new pages.
12 years ago
82b97a8af0
init_meta should write mapsize
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Was leaving it 0 initially.
12 years ago
9acf801cc1
Make sure init_meta is at beginning of file
12 years ago
ed86a086f7
More for prev commit
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Use the latest meta page
12 years ago
e74d70e88e
Partially revert 65d40eb5d2
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Allow both increasing and decreasing the environment size.
But don't allow decreasing below the currently occupied space.
12 years ago
282be11654
FIx prev commit
12 years ago
0ce6bb4be0
Add error checks to txn_commit
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These ops could fail if the map is full.
12 years ago
aff2693fc0
ITS#7455 simplify
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Don't try to reclaim overflow pages while operating on
the freelist (for now). The circular dependencies are much like
the single-page case, but worse. Maybe look into this in the
future, but it's not absolutely necessary now.
12 years ago
9a5d4370be
Yet more retries for overflow page scan
12 years ago
5863d5cc61
Freelist fixes
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Keep list sorted if it grows during a write. Don't free pghead until
we're sure our writes are all finished.
12 years ago
7b10fdde00
Fix mdb_env_copy
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Just write in 2^31 sized chunks
12 years ago
04b7c42109
Rename mdb_open/close mdb_dbi_open/close
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Avoid possible symbol clashes with MDB-Tools libmdb
12 years ago
e545b742e5
Fix 5c1ee7f7ba
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mdb_cursor_sibling() no longer pops cursor before returning.
12 years ago
d3f51fdcf7
More retries for overflow page scan
12 years ago
98fe339089
Rename libmdb to liblmdb
12 years ago
13f3bcd59c
Rename libmdb to liblmdb, lmdb.h
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Avoid naming conflicts with other mdb* packages. Bump version to 0.9.5
12 years ago
Howard Chu