daemon: switch to batch mode when available

latest targetcli daemon approach set interactive mode as default to make it
appear similar to cli approach, hence to use previous batch mode we need
some global settings.

Depends on:
open-iscsi/targetcli-fb#167

Reviewed-by: Xiubo Li <[email protected]>
Signed-off-by: Prasanna Kumar Kalever <[email protected]>

Author: Prasanna Kumar Kalever

daemon/gluster-blockd.c

@@ -539,9 +539,17 @@ blockNodeSanityCheck(void)
         return ENOMEM;
       }
     } else {
-      if (GB_ASPRINTF(&global_opts, "%s auto_use_daemon=true", tmp) == -1) {
-        GB_FREE(tmp);
-        return ENOMEM;
+      ret = gbRunner("targetcli set global | grep daemon_use_batch_mode");
+      if (!ret) {
+        if (GB_ASPRINTF(&global_opts, "%s auto_use_daemon=true daemon_use_batch_mode=true", tmp) == -1) {
+          GB_FREE(tmp);
+          return ENOMEM;
+        }
+      } else {
+        if (GB_ASPRINTF(&global_opts, "%s auto_use_daemon=true", tmp) == -1) {
+          GB_FREE(tmp);
+          return ENOMEM;
+        }
       }
     }
     GB_FREE(tmp);