X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftdb2%2Fprivate.h;h=63354a43dd829c52f82d0a933783f6c67ce8782b;hb=f6067e4cbd7b7415571f12438aec00faec5657fb;hp=4e7fc8ffeccaba5e2ab13348cf02a23bcbbb15bf;hpb=bb4d59ee1e914df9f8066e59a9c9a6604e581c40;p=ccan

diff --git a/ccan/tdb2/private.h b/ccan/tdb2/private.h
index 4e7fc8ff..63354a43 100644
--- a/ccan/tdb2/private.h
+++ b/ccan/tdb2/private.h
@@ -246,7 +246,9 @@ struct tdb_header {
 	uint64_t features_used; /* Features all writers understand */
 	uint64_t features_offered; /* Features offered */
 
-	tdb_off_t reserved[24];
+	uint64_t seqnum; /* Sequence number for TDB_SEQNUM */
+
+	tdb_off_t reserved[23];
 
 	/* Top level hash table. */
 	tdb_off_t hashtable[1ULL << TDB_TOPLEVEL_HASH_BITS];
@@ -388,6 +390,9 @@ struct tdb_context {
 	/* Direct access information */
 	struct tdb_access_hdr *access;
 
+	/* Last error we returned. */
+	enum TDB_ERROR last_error;
+
 	/* The actual file information */
 	struct tdb_file *file;
 };
@@ -523,6 +528,9 @@ enum TDB_ERROR tdb_write_convert(struct tdb_context *tdb, tdb_off_t off,
 enum TDB_ERROR tdb_read_convert(struct tdb_context *tdb, tdb_off_t off,
 				void *rec, size_t len);
 
+/* Bump the seqnum (caller checks for tdb->flags & TDB_SEQNUM) */
+void tdb_inc_seqnum(struct tdb_context *tdb);
+
 /* Adds a stat, if it's in range. */
 void add_stat_(struct tdb_context *tdb, uint64_t *stat, size_t val);
 #define add_stat(tdb, statname, val)					\