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2011-09-14tdb2: return TDB_ERR_RDONLY from transactions on R/O databases, log nestingRusty Russell1-2/+3
Rather than rturning TDB_ERR_EINVAL, return TDB_ERR_RDONLY, and log when we fail due to nesting. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 27647f94668040d91de377849dce87dabd72be69)
2011-09-14tdb2: add tdb_attribute_tdb1_max_deadRusty Russell2-2/+1
This allows us to simulate the old "volatile" flag for tdb1. It's not necessary for tdb2. As this is the last function in tdb1.h, we remove that file. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit b8e64e9346793164651a36eccb3c205077e5c91b)
2011-09-14tdb2: tdb_repackRusty Russell1-0/+76
Move the tdb1_repack() code into the core, make it general, rename to tdb_repack(). It's generic code: copy database into temporary, wipe it, copy back. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit e487983a4099b6f760056ff7182f2ff543e6da71)
2011-09-14tdb2: unify tdb1_get_seqnum/tdb1_increment_seqnum into ↵Rusty Russell1-0/+39
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_check and tdb1_summary into tdb_check and tdb_summary.Rusty Russell7-29/+29
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 Russell7-24/+24
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_chainlock et al. into tdb_chainlockRusty Russell1-7/+7
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 Russell4-11/+13
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 Russell1-4/+4
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 Russell4-8/+8
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 Russell1-2/+2
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 Russell7-24/+22
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 Russell16-35/+35
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 Russell22-184/+179
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 Russell1-1/+1
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 Russell22-75/+204
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 Russell22-177/+189
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 Russell2-4/+4
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: merge tdb1_context into tdb_context.Rusty Russell26-54/+54
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 Russell1-1/+1
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 Russell3-11/+16
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: Make tdb1 use the tdb_file structure.Rusty Russell3-9/+9
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: Make TDB1 code use TDB2's open flags.Rusty Russell17-45/+29
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 Russell3-22/+46
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 Russell17-59/+59
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 Russell11-32/+32
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: Remove unused tdb1 functions.Rusty Russell7-15/+14
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: 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 Russell1-0/+93
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: save openhook, allow tdb_get_attribute() on it.Rusty Russell1-3/+3
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)
2011-09-14tdb2: add TDB_RDONLY flag, allow setting/unsetting it.Rusty Russell1-0/+109
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: Hand error code to logging function.Rusty Russell3-1/+5
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>
2011-09-14tdb2: enforce TDB_CONVERTRusty Russell3-0/+66
If the caller actually specifies TDB_CONVERT, fail if the TDB does not need conversion. It's unusual for the user to specify TDB_CONVERT (it's auto-detected) but better to be strict. (Imported from CCAN commit 3e3ee8b0c1e77340ab9e8678c2d23646d8cdb627) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-09-14tdb2: Fix to always use 64-bit offset definitionRusty Russell4-4/+4
We use off_t in the tdb2 interface (for tdb_attribute_flock); we need to make sure that all callers agree on the size. This also causes a problem in the tests: it's not enough to include config.h first, we need the _FILE_OFFSET_BITS define from private.h. Otherwise, we can disagree about the definitions of F_SETLK, F_SETLKW and off_t, causing strange problems. (Imported from CCAN commit baa17ee2d5e01a32030f19e566007417d72b4b6e) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-06-20tdb2: add lib/tdb2 (from CCAN init-1161-g661d41f)Rusty Russell56-0/+5830
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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