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Try to store a record for which the (circular) freelist does not have
any entry.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This just walks tdb_find by searching for a nonexistent record
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Simple bash test for readonly locks on tdbbackup:
1. Running tdbbackup on a database with and without readonly locks enabled.
2. Dump both backups and original.
3. Check all three dumps match.
A binary sample_tdb.tdb file is included for the test because the existing
sample tdbs in lib/tdb/test are either corrupt or empty.
Signed-off-by: Aaron Haslett <aaron.haslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
* Fix build on AIX
* Python3 compatibility fixes
* Use tdb_wipe_all in "erase" command
* Harden allocating the tdb recovery area
* Make sure the hash size fits
* Harden tdb_check_used_record against overflow
* Harden tdb_rec_read
* Handle TDB_NEXT_LOCK_ERR in tdb_traverse_internal
* Fix build warnings
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
* Add protection against EINTR.
* Truncate the file after expand failure, ENOSPC
* Use posix_fallocate() to expand the file
* Fix GCC compiler warnings
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu Aug 24 21:17:48 CEST 2017 on sn-devel-144
* allow tdb_traverse_read before tdb_transaction[_prepare]_commit()
* Improve documentation for tdb_transaction_start()
* Add new function tdb_transaction_active()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This verifies the F_RDLCK => F_WRLCK upgrade logic in the kernel
for conflicting locks.
This is a standalone test to check the traverse_read vs.
allrecord_lock/prepare_commit interaction.
This is based on the example from
https://lists.samba.org/archive/samba-technical/2017-April/119861.html
from Douglas Bagnall <douglas.bagnall@catalyst.net.nz> and Volker Lendecke <vl@samba.org>.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Drop the configure option for --disable-python as it is now
global in wafsamba.
If samba is set to use a system copy of tdb, and tdb wasn't built
with python support, then the system pytevent will not be found. If
samba is being built without python support then pytdb is not needed,
so do not bother to try and find it.
Signed-off-by: Ian Stakenvicius <axs@gentoo.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
* Bug 12455 - tdb mutexes don't work on FreeBSD
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Nov 30 20:02:28 CET 2016 on sn-devel-144
* avoid a race condition when checking for robust mutexes
(bug #11808)
* Remove use of strcpy in tdb test.
* eliminate deprecation warnings in python tests
* Only set public headers field when installing as a public library.
* Refuse to load a database with hash size 0
* Fix various spelling errors
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Apr 11 18:48:26 CEST 2016 on sn-devel-144
With --disable-python, we should not install any python files.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Thu Jul 23 18:50:25 CEST 2015 on sn-devel-104
* first fix deadlock in the interaction between fcntl and mutex locking
(bug #11381)
* improved python3 bindings
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
- Use bytes for all data, text strings for repr()
- Use PyLong instead of PyInt on py3
- Use new module initialization
- Update tests
- Run tests in "make test"
Signed-off-by: Petr Viktorin <pviktori@redhat.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
* Fix runtime detection for robust mutexes in the standalone build.
bug #11326
* Possible fix for the build with robust mutexes on solaris 11
bug #11319
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Jun 12 19:55:34 CEST 2015 on sn-devel-104
ABI change: tdb_chainlock_read_nonblock() has been added.
Signed-off-by: Alexander Drozdov <al.drozdov@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Apr 29 00:05:29 CEST 2015 on sn-devel-104
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Mar 31 01:56:02 CEST 2015 on sn-devel-104
Transactions are supported with TDB_MUTEX_LOCKING.
This fixes https://bugzilla.samba.org/show_bug.cgi?id=11004
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Dec 19 11:41:26 CET 2014 on sn-devel-104
This fixes the tdb1-run-mutex-openflags2 test when robust mutexes are available.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=10781
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Dec 2 11:54:28 CET 2014 on sn-devel-104
* internal code cleanup
* improved free record detection with a highly contended freelist
on tdb's with dead record support (TDB_VOLATILE).
* implicit defragmentation of the free list.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Sep 16 12:13:31 CEST 2014 on sn-devel-104
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This adds optional support for locking based on
shared robust mutexes.
The caller can use the TDB_MUTEX_LOCKING flag
together with TDB_CLEAR_IF_FIRST after verifying
with tdb_runtime_check_for_robust_mutexes() that
it's supported by the current system.
The caller should be aware that using TDB_MUTEX_LOCKING
implies some limitations, e.g. it's not possible to
have multiple read chainlocks on a given hash chain
from multiple processes.
Note: that this doesn't make tdb thread safe!
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This makes sure a new test is also added to 'make test'
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
* internal code cleanups
* always open internal TDBs with incompatible hash
* avoid reallocations in locking code
* systematize output format in tdbtool dump
* reduce freelist contention when allocating new records
- try to find dead records also in other chains
- don't do blocking locks on the freelist
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Tue Mar 18 15:42:48 CET 2014 on sn-devel-104
* internal code cleanups
* crash fix for pytdb
* fix for 4GB overflow detection
See http://permalink.gmane.org/gmane.network.samba.internals/42906 for
an example of what happens.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Jun 4 16:07:55 CEST 2013 on sn-devel-104
(As suggested by Stefan Metzmacher, based on the change to ntdb.)
Since commit ec96ea690e, we handle the case
where a process dies during a transaction commit. Unfortunately, TDB_NOSYNC
means this no longer works, as it disables the recovery area as well as the
actual msync/fsync. We should do everything except the syncs.
This also means we can do a complete test with $TDB_NO_FSYNC set; just
to get more complete coverage, we disable it explicitly for one test
(where we override the actual sync calls anyway).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Then we unset it inside the tdb test target itself. This means that
new code can't accidently forget it, and we can set it in the
'buildnice' script on sn-devel, for example.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Thu Mar 29 13:12:46 CEST 2012 on sn-devel-104
Commit 4d58d0fa8f didn't work for lib/tdb
outside the build tree: symlink was pointing to wrong place.
Copy simplification from lib/tdb2, and fix the build farm.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Sat Mar 10 07:07:45 CET 2012 on sn-devel-104
Now we can build the test binaries: the CCAN style is to compile
everything called "compile_ok*.c", compile and run everything called
"run*.c", compile, link with the module, and run everything called
"api*.c", and link any other C files (presumably test helpers) into
all the tests.
Unfortunately, actually passing that between the various parts of
wscript is painful, so I open-coded the names.
Also, the tests expect to be run in a (temporary) directory they can
pollute, with the test directory found in test/ (to find the canned
TDB files, for example).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Tue Feb 14 06:53:46 CET 2012 on sn-devel-104
