use new term file helpers

1 files changed, 5 insertions, 15 deletions

diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl
index 7b0eed1353..8a1dd3843b 100644
--- a/src/rabbit_guid.erl
+++ b/src/rabbit_guid.erl
@@ -65,24 +65,14 @@ start_link() ->
 
 update_disk_serial() ->
     Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME),
-    Serial = case file:consult(Filename) of
+    Serial = case rabbit_misc:read_term_file(Filename) of
                  {ok, [Num]} -> Num;
                  {error, _} -> rabbit_persister:serial()
              end,
-    Handle = case file:open(Filename, [write]) of
-                 {ok, Device} -> Device;
-                 {error, Reason} ->
-                     throw({error, {cannot_create_guid_file, Filename, Reason}})
-             end,
-    try
-        ok = io:write(Handle, Serial + 1),
-        ok = io:put_chars(Handle, [$.])
-    after
-        case file:close(Handle) of
-            ok -> ok;
-            {error, Reason1} ->
-                throw({error, {cannot_close_guid_file, Filename, Reason1}})
-        end
+    case rabbit_misc:write_term_file(Filename, [Serial + 1]) of
+        ok -> ok;
+        {error, Reason} ->
+            throw({error, {cannot_write_guid_file, Filename, Reason}})
     end,
     Serial.