tdb2: add tdb_errorstr(), clean up error codes.

[ccan-lca-2011.git] / ccan / tdb2 / tdb.c

diff --git a/ccan/tdb2/tdb.c b/ccan/tdb2/tdb.c
index 7dc5aafbfc254c7d865813e34172e0b29893423d..659d39b23b1ccefc99060c76d6196fa6be77df8e 100644 (file)
--- a/ccan/tdb2/tdb.c
+++ b/ccan/tdb2/tdb.c
@@ -659,3 +659,21 @@ enum TDB_ERROR tdb_error(struct tdb_context *tdb)
 {
        return tdb->ecode;
 }
+
+const char *tdb_errorstr(struct tdb_context *tdb)
+{
+       /* Gcc warns if you miss a case in the switch, so use that. */
+       switch (tdb->ecode) {
+       case TDB_SUCCESS: return "Success";
+       case TDB_ERR_CORRUPT: return "Corrupt database";
+       case TDB_ERR_IO: return "IO Error";
+       case TDB_ERR_LOCK: return "Locking error";
+       case TDB_ERR_OOM: return "Out of memory";
+       case TDB_ERR_EXISTS: return "Record exists";
+       case TDB_ERR_NESTING: return "Transaction already started";
+       case TDB_ERR_EINVAL: return "Invalid parameter";
+       case TDB_ERR_NOEXIST: return "Record does not exist";
+       case TDB_ERR_RDONLY: return "write not permitted";
+       }
+       return "Invalid error code";
+}