diff options
Diffstat (limited to 'lib/tdb/common/transaction.c')
| -rw-r--r-- | lib/tdb/common/transaction.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/tdb/common/transaction.c b/lib/tdb/common/transaction.c index 501cd62b96e..20f2bfc2cd4 100644 --- a/lib/tdb/common/transaction.c +++ b/lib/tdb/common/transaction.c @@ -86,12 +86,20 @@ 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. + tdb_add_flags() transaction nesting is enabled. + It resets the TDB_DISALLOW_NESTING flag, as both cannot be used together. + The default is that transaction nesting is allowed. + Note: this default may change in future versions of tdb. Beware. when transactions are nested a transaction successfully completed with tdb_transaction_commit() can be silently unrolled later. + + - if TDB_DISALLOW_NESTING is passed to flags in tdb open, or added using + tdb_add_flags() transaction nesting is disabled. + It resets the TDB_ALLOW_NESTING flag, as both cannot be used together. + An attempt create a nested transaction will fail with TDB_ERR_NESTING. + The default is that transaction nesting is allowed. + Note: this default may change in future versions of tdb. */ |