\end_layout
\begin_layout Standard
+
+\change_deleted 0 1298979572
Incomplete; nesting flag is still defined as per tdb1.
+\change_inserted 0 1298979584
+Complete; the nesting flag has been removed.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1300360559
Incomplete.
TDB_VOLATILE still defined, but implementation should fail on unknown flags
to be future-proof.
+\change_inserted 0 1300360588
+Complete.
+ Unknown flags cause tdb_open() to fail as well, so they can be detected
+ at runtime.
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1300360823
Incomplete.
+\change_inserted 0 1300360824
+Complete.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\begin_layout Standard
Reachitecting the API to include a tdb_errcode pointer would be a great
- deal of churn; we are better to guarantee that the tdb_errcode is per-thread
- so the current programming model can be maintained.
+ deal of churn
+\change_inserted 0 1298979557
+, but fortunately most functions return 0 on success and -1 on error: we
+ can change these to return 0 on success and a negative error code on error,
+ and the API remains similar to previous.
+ The tdb_fetch, tdb_firstkey and tdb_nextkey functions need to take a TDB_DATA
+ pointer and return an error code.
+ It is also simpler to have tdb_nextkey replace its key argument in place,
+ freeing up any old .dptr.
+\end_layout
+
+\begin_layout Standard
+
+\change_deleted 0 1298979438
+; we are better to guarantee that the tdb_errcode is per-thread so the current
+ programming model can be maintained.
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1298979438
This requires dynamic per-thread allocations, which is awkward with POSIX
threads (pthread_key_create space is limited and we cannot simply allocate
a key for every TDB).
+\change_unchanged
+
\end_layout
\begin_layout Standard
\end_layout
\begin_layout Standard
-Incomplete.
+Incomplete
+\change_inserted 0 1298979681
+; API has been changed but thread safety has not been implemented.
+\change_deleted 0 1298979669
+.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1300360712
Incomplete.
+\change_inserted 0 1300360716
+Complete.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1298979699
Incomplete, TDB_CLEAR_IF_FIRST still defined, but not implemented.
+\change_inserted 0 1298979700
+Complete.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1300360753
Incomplete.
+\change_inserted 0 1300360754
+Complete.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1300360766
Incomplete.
+\change_inserted 0 1300360767
+Complete.
+\change_unchanged
+
\end_layout
\begin_layout Subsection
\end_layout
\begin_layout Standard
+
+\change_deleted 0 1298979837
Incomplete; TDB_CLEAR_IF_FIRST still defined, but does nothing.
+\change_inserted 0 1298979837
+Complete.
+\change_unchanged
+
\end_layout
\begin_layout Subsection