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| author | Volker Lendecke <vl@samba.org> | 2012-01-08 19:04:39 +0100 |
|---|---|---|
| committer | Volker Lendecke <vlendec@samba.org> | 2012-01-18 14:48:04 +0100 |
| commit | 333c92384b0680b8f8e5198dd68d49b249b34ec7 (patch) | |
| tree | 8042feeb87bf2a0f763b0972facca268a935a8c6 /source3/lib/dbwrap/dbwrap_private.h | |
| parent | 45e61fcf61ed9863fbe2b116fe0763fc139bbe0d (diff) | |
| download | samba-333c92384b0680b8f8e5198dd68d49b249b34ec7.tar.gz samba-333c92384b0680b8f8e5198dd68d49b249b34ec7.tar.bz2 samba-333c92384b0680b8f8e5198dd68d49b249b34ec7.zip | |
s3: Enforce a lock order in dbwrap
This makes sure we do not deadlock from doing two dbwrap_fetch_locked in two
processes in different orders. At open time, we assign a strict order to all
databases. lock_order 1 will be locked first, lock_order 2 second. No two
records of the same lock order may be locked at the same time.
Diffstat (limited to 'source3/lib/dbwrap/dbwrap_private.h')
| -rw-r--r-- | source3/lib/dbwrap/dbwrap_private.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/source3/lib/dbwrap/dbwrap_private.h b/source3/lib/dbwrap/dbwrap_private.h index d0b3279368..111f02dc6b 100644 --- a/source3/lib/dbwrap/dbwrap_private.h +++ b/source3/lib/dbwrap/dbwrap_private.h @@ -56,6 +56,7 @@ struct db_context { int (*exists)(struct db_context *db,TDB_DATA key); int (*wipe)(struct db_context *db); void *private_data; + enum dbwrap_lock_order lock_order; bool persistent; }; |