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
bb36bdcd1c
ITS#7432 fix typo in mdb_midl_sort
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Wasn't pushing the optimal half of the array onto the stack,
thus used more stack than expected -> overrun.
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
7f0771a3ed
Merge mdb_stata into mdb_stat
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
756ce8e10c
Tweak MDB restrictions
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
2b960613e0
ITS#7377 Document caveats/troubeshooting.
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
5ef56b437e
More for ab04c50a32
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Use explicit MDB_RDONLY flag
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
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
Hallvard Furuseth