diff options
Diffstat (limited to 'lib/tdb/common/transaction.c')
| -rw-r--r-- | lib/tdb/common/transaction.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/tdb/common/transaction.c b/lib/tdb/common/transaction.c index 035b4e1d54..501cd62b96 100644 --- a/lib/tdb/common/transaction.c +++ b/lib/tdb/common/transaction.c @@ -85,6 +85,13 @@ still available, but no transaction recovery area is used and no fsync/msync calls are made. + - if TDB_ALLOW_NESTING is passed to flags in tdb open, or added using + tdb_add_flags() transaction is enabled. + The default is that transaction nesting is not allowed and an attempt + to create a nested transaction will fail with TDB_ERR_NESTING. + + Beware. when transactions are nested a transaction successfully + completed with tdb_transaction_commit() can be silently unrolled later. */ @@ -427,6 +434,10 @@ int tdb_transaction_start(struct tdb_context *tdb) /* cope with nested tdb_transaction_start() calls */ if (tdb->transaction != NULL) { + if (!(tdb->flags & TDB_ALLOW_NESTING)) { + tdb->ecode = TDB_ERR_NESTING; + return -1; + } tdb->transaction->nesting++; TDB_LOG((tdb, TDB_DEBUG_TRACE, "tdb_transaction_start: nesting %d\n", tdb->transaction->nesting)); |