X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb%2Ftdb.h;h=b84e20560021d45034bb4f29df78da30fb4cba30;hp=93ac25241b880ad1233978732b2e29e13bb75f96;hb=b3804e47471640f1f8c15f5013a78bdbeb12f69d;hpb=1bc7c4367132a36c05ac1b3afcbec70a6e26540d

diff --git a/ccan/tdb/tdb.h b/ccan/tdb/tdb.h
index 93ac2524..b84e2056 100644
--- a/ccan/tdb/tdb.h
+++ b/ccan/tdb/tdb.h
@@ -56,6 +56,7 @@ extern "C" {
 #define TDB_SEQNUM   128 /* maintain a sequence number */
 #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 */
 
 /* error codes */
 enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK, 
@@ -148,6 +149,9 @@ 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);
+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);