File bitcask-2.0.8-fileop.patch of Package bitcask

diff -Ndurp bitcask-2.0.8/src/bitcask.erl bitcask-2.0.8-fileop/src/bitcask.erl
--- bitcask-2.0.8/src/bitcask.erl	2017-03-04 01:37:58.000000000 +0200
+++ bitcask-2.0.8-fileop/src/bitcask.erl	2019-07-07 02:08:51.586710621 +0300
@@ -3081,11 +3081,6 @@ efile_error_test() ->
     B = bitcask:open(Dir, [read_write]),
     ok = bitcask:put(B, <<"k">>, <<"v">>),
     ok = bitcask:close(B),
-    Port = get(bitcask_efile_port),
-    % If this fails, we stopped using the efile port trick to list
-    % dir contents, so remove this test
-    ?assert(is_port(Port)),
-    true = erlang:port_close(Port),
     case bitcask:open(Dir) of
         {error, _} = Err ->
             ?assertEqual(ok, Err);
diff -Ndurp bitcask-2.0.8/src/bitcask_fileops.erl bitcask-2.0.8-fileop/src/bitcask_fileops.erl
--- bitcask-2.0.8/src/bitcask_fileops.erl	2017-03-04 01:37:58.000000000 +0200
+++ bitcask-2.0.8-fileop/src/bitcask_fileops.erl	2019-07-07 02:08:33.668130995 +0300
@@ -838,46 +838,7 @@ ensure_dir(F) ->
     end.
 
 list_dir(Dir) ->
-    list_dir(Dir, 1).
-
-list_dir(_, 0) ->
-    {error, efile_driver_unavailable};
-list_dir(Directory, Retries) when is_integer(Retries), Retries > 0 ->
-    Port = get_efile_port(),
-    case prim_file:list_dir(Port, Directory) of
-        {error, einval} ->
-            clear_efile_port(),
-            list_dir(Directory, Retries-1);
-        Result ->
-            Result
-    end.
-
-get_efile_port() ->
-    Key = bitcask_efile_port,
-    case get(Key) of
-        undefined ->
-            case prim_file_drv_open("efile", [binary]) of
-                {ok, Port} ->
-                    put(Key, Port),
-                    get_efile_port();
-                Err ->
-                    error_logger:error_msg("get_efile_port: ~p\n", [Err]),
-                    timer:sleep(1000),
-                    get_efile_port()
-            end;
-        Port ->
-            Port
-    end.
-
-clear_efile_port() ->
-    erase(bitcask_efile_port).
-
-prim_file_drv_open(Driver, Portopts) ->
-    try erlang:open_port({spawn, Driver}, Portopts) of
-        Port ->
-            {ok, Port}
-    catch
-        error:Reason ->
-            {error, Reason}
+    case prim_file:list_dir(Dir) of
+        {ok, _} = Result -> Result;
+        _ -> {error, efile_driver_unavailable}
     end.
-