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
38fb8e6eb1
ITS#7377 Wrap fcntl F_SETLK in EINTR loop too.
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This can happen even on local filesystems.
12 years ago
ab3fea51dc
ITS#7377 Catch ftruncate() error
12 years ago
7333b6bdc9
Fix prev commit
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It only worked if the freelist was already non-empty
12 years ago
cd228b4722
Fix mdb_drop
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if it was the only operation in a txn, it would be ignored.
12 years ago
0c4c6fe72a
ITS#7385, check further for bad splits
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More for 48ef27b6f5
12 years ago
ba6c3281a1
Add MDB_GET_CURRENT
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return whatever the cursor is currently pointing at
12 years ago
d13ca0de4f
ITS#7394 ignore WRITEMAP if RDONLY
12 years ago
0a359fb629
More for 48ef27b6f5
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page_split with newindex > split_indx
12 years ago
c67ea9c060
ITS#7377 Catch MDB user errors.
12 years ago
c0f3d9b9a8
ITS#7377 Catch MDB setup errors and clean up.
12 years ago
fe1b3794de
ITS#7364 Limit mdb lock upgrade before sem_unlink.
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Do not try shared lock when closing or after error. Track file lock
state to decide. Change meaning of *excl to reflect file lock state.
12 years ago
c760e536ec
ITS#7364 Always sem_unlink() in mdb_env_open().
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Drop the sem_unlink() error checks, which could prevent the 2nd
unlink. Instead use O_EXCL in sem_open().
This makes "open+close the database" the API for trying to clean
away the old semaphores, if they were left behind by a previous run.
12 years ago
31be24896b
ITS#7377 Wrap sem_wait & file locks in EINTR loops
12 years ago
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
Howard Chu