tdb: TDB_INCOMPATIBLE_HASH, to allow safe changing of default hash.

[ccan] / ccan / tdb / tdb.h

diff --git a/ccan/tdb/tdb.h b/ccan/tdb/tdb.h
index 455cde4369951ec5642c14175d56aac563e4741a..020cf050b803cd02db67d7d34aaa7cd8e042da33 100644 (file)
--- a/ccan/tdb/tdb.h
+++ b/ccan/tdb/tdb.h
@@ -57,6 +57,7 @@ extern "C" {
 #define TDB_VOLATILE   256 /* Activate the per-hashchain freelist, default 5 */
 #define TDB_ALLOW_NESTING 512 /* Allow transactions to nest */
 #define TDB_DISALLOW_NESTING 1024 /* Disallow transactions to nest */
 #define TDB_VOLATILE   256 /* Activate the per-hashchain freelist, default 5 */
 #define TDB_ALLOW_NESTING 512 /* Allow transactions to nest */
 #define TDB_DISALLOW_NESTING 1024 /* Disallow transactions to nest */

+#define TDB_INCOMPATIBLE_HASH 2048 /* Better hashing: can't be opened by older tdb versions. */

 
 /* error codes */
 enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK, 
 
 /* error codes */
 enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK,