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4 Commits

Author SHA1 Message Date
Volker Lendecke
db5bda56bf tdb: add TDB_MUTEX_LOCKING support
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>
2014-05-22 21:05:15 +02:00
Stefan Metzmacher
2a9d5a3239 tdb/test: avoid const warnings by using 'discard_const_p(uint8_t,' instead of '(void *)'
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-04-02 09:03:42 +02:00
Stefan Metzmacher
6871bf689f tdb/test: remove "\n" in diag() arguments
diag() already adds "\n".

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-04-02 09:03:42 +02:00
Rusty Russell
90f463b25f tdb: add tdb_rescue()
This allows for an emergency best-effort dump.  It's a little better than
strings(1).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-10-04 09:04:19 +09:30