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2011-09-14tdb2: unify tdb1_get_seqnum/tdb1_increment_seqnum into ↵Rusty Russell5-5/+60
tdb_get_seqnum/tdb_inc_seqnum Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 57359c26e9626aa986ee0538efd13a44a466f39d)
2011-09-14tdb2: unify tdb1_firstkey/tdb1_nextkey into tdb_firstkey/tdb_nextkey.Rusty Russell3-4/+26
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 7366486e29e4f3d89a3e08fc114079d6441af850)
2011-09-14tdb2: unify tdb1_check and tdb1_summary into tdb_check and tdb_summary.Rusty Russell12-40/+62
Switch on the TDB_VERSION1 flag. Also, change tdb1_check's checkfn argument to return an error code (and set tdb->last_error accordingly). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit ef92843f2c74ab9d4fa7f167a2182e5e8955df91)
2011-09-14tdb2: unify tdb1_transaction_start etc. into tdb_transaction_start.Rusty Russell10-30/+50
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 6bc8ea012391198bc3898ae2937558b60dd55906)
2011-09-14tdb2: unify tdb1_parse_record into tdb_parse_recordRusty Russell6-44/+32
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 3352e4e947777d4a90a2dd4f3037e1e494231b25)
2011-09-14tdb2: unify tdb1_chainlock et al. into tdb_chainlockRusty Russell11-71/+57
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit ceb2f3eacbad917ee990afbc3dd800bfb0607887)
2011-09-14tdb2: unify tdb1_traverse into tdb_traverseRusty Russell9-26/+40
Switch on the TDB_VERSION1 flag; we now only do a tdb1_traverse_read on a read-only database, as there is no tdb2 equivalent. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit cc2d609dfca7192305ad477b8c2b52cfdc1aa9be)
2011-09-14tdb2: unify tdb1_store into tdb_storeRusty Russell5-6/+10
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 2bba2a856a6cfdb93085b701557850bc1da99587)
2011-09-14tdb2: unify tdb1_delete into tdb_delete.Rusty Russell8-10/+16
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit acb26c9c3ee054c8b2141db25c9bd7be064e425c)
2011-09-14tdb2: unify tdb1_append into tdb_appendRusty Russell5-4/+11
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 8bc38cb177928ef739440c32e33a8eaf23a5dd22)
2011-09-14tdb2: unify tdb1_fetch into tdb_fetchRusty Russell11-30/+32
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 08c05da588018c6b76834e57b66d525546643708)
2011-09-14tdb2: unify tdb1_store into tdb_storeRusty Russell20-37/+47
Switch on the TDB_VERSION1 flag. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 98c754ffe65bc335f66161d6cc8705d4ea2710ec)
2011-09-14tdb2: unify tdb1_open into tdb_openRusty Russell30-524/+400
Finally, we gut tdb1_open() to the tdb1-specific parts, and call it from tdb_open if they specify the TDB_VERSION1 flag or the version is a TDB1. We also unify tdb_close(), based on the TDB_VERSION1 flag. Note that tdb_open(TDB_VERSION1) will fail on an existing tdb if it's a TDB2. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit c8c3b3568677e8b0105f84e4ab068c580faf4591)
2011-09-14tdb2: disallow SEED attribute with TDB_VERSION1.Rusty Russell2-1/+27
It also only makes sense with O_CREAT. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit fc44729c471bcdc7ab0410448d991a65e74cec3d)
2011-09-14tdb2: add TDB_ATTRIBUTE_TDB1_HASHSIZERusty Russell27-94/+286
This replaces the tdb1_open "hash_size" argument. It will only be valid when you call tdb_open() with O_CREAT in open_flags, and TDB_VERSION1 in tdb_flags. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 49475d68deecd0b31597ed6094229171d2699b11)
2011-09-14tdb2: make tdb1_open use attributes for logging, hash function.Rusty Russell25-210/+229
This brings it closer to tdb_open(), so we can unify more easily. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit a446f1d4d161d66bbb19ba2551cf6429a4865964)
2011-09-14tdb2: make jenkins_hash function non-static, rename to tdb_jenkins_hash.Rusty Russell5-16/+20
We're going to need access to it from tdb1_open, so expose it now. It's better in hash.c anyway. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit c8f6f8c2dea76042f74c02eff048847e62adcca6)
2011-09-14tdb2: remove double-open detection for TDB1 databases.Rusty Russell1-38/+0
This is a percursor to unifying with tdb_open() from tdb2, which handles this itself. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 97224cbbe29e76522ec38d031c54b1cadce8ae03)
2011-09-14tdb2: merge tdb1_context into tdb_context.Rusty Russell44-913/+848
Finally, we split out the tdb2-specific parts of tdb_context, and put them into a "tdb2" sub-struct; the tdb1 parts go into a "tdb1" sub-struct. We get rido of tdb1_context and use tdb_context everywhere. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit bbeb528e74c0e234e1f724ac8d54be404cfc6f9a)
2011-09-14tdb2: use tdb->flags & TDB_RDONLY instead of tdb->read_only for TDB1 code.Rusty Russell10-20/+23
There's also a semantic change here: for tdb1, being read-only meant no locking, and it was an error to try to lock a r/o database. For TDB2, you'd need to specify TDB_NOLOCK, which suppresses locking silently. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 4dc29a338fadeac805b369b4b0851c02f1b152c7)
2011-09-14tdb2: Make TDB1 use the same tdb_hash() wrapper as TDB2Rusty Russell12-43/+58
This means converting the tdb1 inbuilt hash functions to the tdb2-style, so they return 64 bit. We truncate to 32 bit everywhere but in tdb_check() which needs to do so explicitly. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 3e46dde21261966941469a6c75e1b45cd2d26324)
2011-09-14tdb2: don't cancel transactions on lock failures in tdb1 backend.Rusty Russell1-5/+3
In TDB2, the user can override locking functions, so they may deliberarely fail (eg. be non-blocking) expecting to retry. For this reason, the TDB2 API requires the caller to cancel the transaction if tdb_transaction_prepare_commit() fails. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 8458811a4126c22635b974718bfbf2876c893c37)
2011-09-14tdb2: suppress tdb1 backend logging when locking returns EINTR or EAGAINRusty Russell2-9/+17
The TDB1 code logs multiple times on errors; we must prevent that in the limited case where locking fails. With TDB2, this can happen due to the lock function attribute, where the user supplies replacement locking functions which are allowed to return with errno EAGAIN or EINTR for various special-effects. Flooding the logs for this is unfriendly. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit a391b2b900bc6d5c0467869a454bdb5c51b5a3be)
2011-09-14tdb2: make tdb1 use same low-level lock functions.Rusty Russell6-335/+136
This means they will use the TDB_ATTRIBUTE_FLOCK functions, and get automatic reopen support. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit fbad02b680b6cbc33ae305ae1cbcdead4eedc7b1)
2011-09-14tdb2: Make tdb1 use the tdb_file structure.Rusty Russell12-202/+206
Because tdb2 allows multiple opens of the same TDB, we separate out the file information from the struct tdb_context. Do the same for tdb1. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 60210a73ec08a7b34ba637ad19e6749cf6dc1952)
2011-09-14tdb2: add TDB_VERSION1 flag.Rusty Russell2-1/+2
This will be set for old TDBs; we can start distinguishing paths based on it now. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 2b50be90a23893a06e0f1436a31d18b97ad0e11d)
2011-09-14tdb2: Make TDB1 code use TDB2's open flags.Rusty Russell24-165/+67
This means getting rid of TDB_VOLATILE (perhaps we should use an attribute for that?), TDB_INCOMPATIBLE_HASH (use the tdb_attribute_hash for that) and TDB_CLEAR_IF_FIRST (use the tdb_attribute_openhook for that). We also get rid of TDB_DISALLOW_NESTING: that's the default for TDB2. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 22d0e0dc59fc9d7e0046fec6971ef478c2d604fd)
2011-09-14tdb2: approximate INCOMPATIBLE_HASH flag with tdb1_incompatible_hash()Rusty Russell6-48/+72
Rather than leak TDB_INCOMPATIBLE_HASH through to the TDB2 API, we make it that if they use the tdb1_incompatible_hash function as their hash, then we treat it as if they had specified the TDB_INCOMPATIBLE_HASH flag (ie. we mark the header so it's unusable by tdb < 1.2.6). This precludes the possibility of using TDB_INCOMPATIBLE_HASH with a custom hash function: that used to allow the user to ensure that old TDB versions couldn't open the TDB file (and recent ones check the header to ensure they're using the right hash). But that's a small loss. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 3004f7e89a5978064b4fb29c1027e6d0d39e9418)
2011-09-14tdb2: Make tdb1 share tdb_store flags, struct tdb_data and TDB_MAGIC_FOOD.Rusty Russell27-187/+168
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 8a47d50d72ea62e378dc92b150c92c1317c73fa3)
2011-09-14tdb2: make TDB1 code use tdb2's TDB_ERROR and tdb_logerr()Rusty Russell23-397/+489
To do this, we make sure that the first few fields of tdb1_context and tdb_context are the same. This sweep also fixes up a few paths where we weren't setting tdb->ecode before our old logging function. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 919937354a331bb964564a11b5a5b80403ff8db9)
2011-09-14tdb2: make tdb1 headers include tdb2 headers.Rusty Russell2-29/+4
They're about to start sharing TDB2's definitions. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 1e3138a0ad0c184d2ca49ce7bc47173eb2fe67bd)
2011-09-14tdb2: rearrange tdb_context layout so tdb1_context can matchRusty Russell1-16/+16
By moving all the parts of struct tdb_context which logging and locking use to the beginning of the structure, we can make tdb1_context match, and thus pass that directly to the tdb_logerr() function, and later the locking functions. This is only necessary until we unify tdb1_context and tdb_context. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 0fd5be2955f8e6487c0f4ab711e2a6958bb8f412)
2011-09-14tdb2: add tdb1 code to build.Rusty Russell1-1/+5
The following patches integrate it together, but from here on we build it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-09-14tdb2: remove TDB1 TDB_NO_FSYNC environment variable hack.Rusty Russell1-4/+0
The caller should do this: the SAMBA compatibility later does. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 75a6a6ad64156ef3b13493be2970ae3cb99ccf8b)
2011-09-14tdb2: get rid of TDB1 mark and nonblock functions.Rusty Russell5-42/+19
We do this using hooks in tdb2. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 444fade529f68eb2b0aebbc8de442478c5c6f916)
2011-09-14tdb2: remove _PUBLIC_ in tdb1 functions.Rusty Russell9-41/+36
They'll all be accessed via the tdb2 API. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 39f55294799c6443c0ad7bef09f1c113cf89d295)
2011-09-14tdb2: Remove unused tdb1 functions.Rusty Russell17-710/+17
We're going to use TDB2's API, so some TDB1 APIs are obviously unnecessary. We also get rid of USE_RIGHT_MERGES and TRACE code. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit b929638e3cfe629285af3ecd0813e03eaeaa1133)
2011-09-14tdb2: test: import tdb1's tests.Rusty Russell33-0/+2102
The main change is to s/tdb/tdb1_/ everywhere. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit fab544c24c1ad6523f95893abcaec4e6cce6c2b4)
2011-09-14tdb2: include tdb1 source in tests.Rusty Russell1-0/+11
Since we've renamed everything in tdb1, they won't clash. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 5d6194b434f3664d1025df12ef06c6a25f693bc8)
2011-09-14tdb2: import TDB1 code.Rusty Russell15-0/+6787
We import the entire codebase, putting a "tdb1_" prefix on the files and changing the "tdb_" prefix to "tdb1_" everywhere. The next patches will gradually merge it with the TDB2 code where necessary. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 19e6c1a250ade1e7204ada17163294855585e825)
2011-09-14tdb2: make tests include a single mega-header to simplify future patchesRusty Russell50-408/+60
This lets us add the new files to a single place. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 476567430be6962625bf399192e20938985232c7)
2011-09-14tdb2: tdb_foreach()Rusty Russell3-0/+117
Create an iterator over every open tdb (not internal TDBs). This is useful for re-establishing the tdb1-style active lock for CLEAR_IF_FIRST. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 1a0c636bc38213bd0322db47529f78f2dc22ffdd)
2011-09-14tdb2: keep link of every non-internal tdb.Rusty Russell2-25/+22
Instead of a per-file linked list, use a per-tdb list. This is needed for tdb_foreach(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 2414f261918b4fb8a549dd385dba32118e37bf85)
2011-09-14tdb2: save openhook, allow tdb_get_attribute() on it.Rusty Russell4-18/+21
This makes it easy to call it again after a fork(), such as for re-establishing the CLEAR_IF_FIRST files locks. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 937d0babe99dcd315040a9e48430140e63e4a7df)
2011-09-14tdb_compat: make tdb2s temporarily read-only for tdb_traverse_read()Rusty Russell2-2/+27
It doesn't make a difference unless the tdb2 opens a TDB1 on disk, in which case tdb1_traverse() takes a write lock on the entire file. By setting the tdb to read-only first, we simulate the old behaviour. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-09-14tdb2: add TDB_RDONLY flag, allow setting/unsetting it.Rusty Russell8-16/+170
You can only unset it if the TDB was originally opened O_RDWR. Also, cleaned up error handling in tdb_allrecord_lock() so we only get one log message on a r/o database. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit b87e14495d5b07e1b247218a72329f10ecb3da7f)
2011-09-14tdb2: return TDB_ERR_RDONLY if trying to start a transaction on a R/O tdb.Rusty Russell1-2/+11
This is more accurate than returning TDB_ERR_EINVAL. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 91436a25574597dbd1fd2de5bcd5826a234100d6)
2011-09-14tdb2: save open_flags instead of mmap_flags.Rusty Russell3-5/+11
It's more consistent with what tdb1 does, and slightly more encapsulated. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 6b7c3c840eafbec211b9f58751c5ff754302a68e)
2011-09-14tdb_compat: adapt to tdb2 API change.Rusty Russell6-6/+16
Add the ecode arg to all the log functions, and log it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-09-14tdb2: Hand error code to logging function.Rusty Russell10-15/+34
Since we've deprecated tdb_error() function (and it didn't work right from inside the logging function anyway, since we didn't set tdb->ecode yet) we need to hand it to the log function. (Imported from CCAN commit 6e3d9e8a66bf8b45150500f176452ee8e9ee9927) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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