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
f165507199
ITS#7455 use freelist for overflow pages
12 years ago
97ed96206d
mdb_env_sync(,force=1): Override MDB_MAPASYNC.
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With MDB_MAPASYNC, the API provided no way to ensure full sync.
12 years ago
b9275c9991
mdb_cursor_dbi(): Assume valid args.
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It returned 0, which is the freelist DBI and is valid for a few uses.
12 years ago
7e620a34a2
API change: mdb_drop() only accepts del=0 or 1.
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This allows for other flag values in the future.
12 years ago
d903bed218
API change: mdb_env_set_maxdbs(, *named* DBs).
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Let the user specify the number of databases he will actually
use. Adding 2 for FREE_DBI and MAIN_DBI is an internal matter.
12 years ago
6b56e0fab1
ITS#7453 Fix reset of MDB_NOSYNC/MDB_NOMETASYNC.
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mdb_env_open() with these flags did not open a synchronizing
file descriptor. Thus disabling them later did not work.
12 years ago
0201b9002c
Tweak MDB_FIXEDMAP handling.
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Drop mmap()'s MAP_FIXED flag, so it returns another address instead
of unmapping existing overlapping pages. Verify the returned address.
12 years ago
52e3adbdec
Renumber MDB_NOSUBDIR. Check mdb_env_open() flags.
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MDB_NOSUBDIR was == MDB_REVERSEKEY. That affected the freelist:
Env flags are stored in mm_flags alias mm_dbs[FREE_DBI].md_flags.
It stays a persistent flag, in case mdb_env_open someday wants
to pick/verify which lockfile to use with the datafile.
Catch bad flags so they will no longer make it into the data file.
12 years ago
0108327c27
Better fix for MDB_DEBUG tweak -- from hbf
12 years ago
b68aa3f86b
Revert "MDB_DEBUG tweak for old compilers"
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This reverts commit ef2092eac9
12 years ago
ef2092eac9
MDB_DEBUG tweak for old compilers
12 years ago
c2f15990c7
Fix flag checks in mdb_open
12 years ago
f5b8d017df
fix Windows mdb_env_copy(), WriteFile overflow
12 years ago
66f2b7b2ec
Make sure mdb_open flags are committed on main DB
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If no data was modified in the txn, mdb_open flag changes were dropped.
12 years ago
5f2ddb5532
Minor cleanup
12 years ago
5c1ee7f7ba
Fix MDB_PREV
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Could return 1 garbage record before actual data, if starting from EOF
12 years ago
617769bce5
Tweak output, add free page info
12 years ago
754cd88819
Add mdb_env_info() to retrieve interesting env params
12 years ago
65d40eb5d2
Make sure increases of mapsize are persisted
12 years ago
94965307c8
ITS#7377 Errorcheck Windows calls and thread keys.
12 years ago
88b7bb4639
Explicitly unlock the MDB lockfile on Windows.
12 years ago
e9d87866c4
mdb_env_open(): Keep mdb_env_set_flags() flags.
12 years ago
092f9a5c66
More for mdb_env_copy().
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Fix #define _GNU_SOURCE = 1 to match any command line -D_GNU_SOURCE.
.gitignore += mdb_copy.
12 years ago
462d9dfd10
Fix last commit.
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Add flag MDB_ENV_ACTIVE instead of using the state of me_lfd.
Require MDB_RDONLY for MDB_ROFS. Swap reader/writer mutex lock.
12 years ago
e40713b631
Support read access on read-only media
12 years ago
f037dd2d19
Silence warning in prev commit
12 years ago
ebb6859ea5
Add mdb_copy for backing up a DB environment
12 years ago
a3f33dd20e
Fix mdb_open() off-by-one error in maxdbs check
12 years ago
Hallvard Furuseth