X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb%2Ftdb.h;h=020cf050b803cd02db67d7d34aaa7cd8e042da33;hp=5ab724031dc5bebeccc920bfc6142a542bb39bc0;hb=95bf6d3f652c031e1bf4a2ef5df187b6f34a4c01;hpb=bcf7916c5d694858766869dfd570e525127154a6

diff --git a/ccan/tdb/tdb.h b/ccan/tdb/tdb.h
index 5ab72403..020cf050 100644
--- a/ccan/tdb/tdb.h
+++ b/ccan/tdb/tdb.h
@@ -55,12 +55,15 @@ extern "C" {
 #define TDB_NOSYNC   64 /* don't use synchronous transactions */
 #define TDB_SEQNUM   128 /* maintain a sequence number */
 #define TDB_VOLATILE   256 /* Activate the per-hashchain freelist, default 5 */
-#define TDB_NO_NESTING 512 /* Dont allow transaction nesting */
+#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, 
 		TDB_ERR_OOM, TDB_ERR_EXISTS, TDB_ERR_NOLOCK, TDB_ERR_LOCK_TIMEOUT,
-		TDB_ERR_NOEXIST, TDB_ERR_EINVAL, TDB_ERR_RDONLY};
+		TDB_ERR_NOEXIST, TDB_ERR_EINVAL, TDB_ERR_RDONLY,
+		TDB_ERR_NESTING};
 
 /* debugging uses one of the following levels */
 enum tdb_debug_level {TDB_DEBUG_FATAL = 0, TDB_DEBUG_ERROR, 
@@ -147,6 +150,10 @@ void tdb_add_flags(struct tdb_context *tdb, unsigned flag);
 void tdb_remove_flags(struct tdb_context *tdb, unsigned flag);
 void tdb_enable_seqnum(struct tdb_context *tdb);
 void tdb_increment_seqnum_nonblock(struct tdb_context *tdb);
+unsigned int tdb_jenkins_hash(TDB_DATA *key);
+int tdb_check(struct tdb_context *tdb,
+	      int (*check)(TDB_DATA key, TDB_DATA data, void *private),
+	      void *private);
 
 /* Low level locking functions: use with care */
 int tdb_chainlock(struct tdb_context *tdb, TDB_DATA key);