added a builtin fetch function to support samba3 unlocked fetch

[vlendec/samba-autobuild/.git] / ctdb / common / ctdb_ltdb.c

diff --git a/ctdb/common/ctdb_ltdb.c b/ctdb/common/ctdb_ltdb.c
index 979d506b0b3e41cc743c18e647c23947e1cece03..f8141180f2f3655c6a7babdbe01309f10d5d9d22 100644 (file)
--- a/ctdb/common/ctdb_ltdb.c
+++ b/ctdb/common/ctdb_ltdb.c
@@ -50,6 +50,15 @@ static int ctdb_null_func(struct ctdb_call_info *call)
        return 0;
 }
 
+/*
+  this is a plain fetch procedure that all databases support
+*/
+static int ctdb_fetch_func(struct ctdb_call_info *call)
+{
+       call->reply_data = &call->record_data;
+       return 0;
+}
+
 
 /*
   return the lmaster given a key
@@ -366,6 +375,17 @@ int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
                talloc_free(ctdb_db);
                return -1;
        }
+
+       /* 
+          all databases support the "fetch" function. we need this
+          for efficient Samba3 ctdb fetch
+       */
+       ret = ctdb_daemon_set_call(ctdb, ctdb_db->db_id, ctdb_fetch_func, CTDB_FETCH_FUNC);
+       if (ret != 0) {
+               DEBUG(0,("Failed to setup fetch function for '%s'\n", ctdb_db->db_name));
+               talloc_free(ctdb_db);
+               return -1;
+       }
        
        /* tell all the other nodes about this database */
        ctdb_daemon_send_control(ctdb, CTDB_BROADCAST_VNN, 0,