Make a separate application module for Mnesia

To separate concerns and reduce confusion, avoid implementing two
behaviours in a single module. Make a single start_link() helper in
mnesia_sup and remove the unused mnesia_sup:start() utility function.

1 files changed, 41 insertions, 0 deletions

diff --git a/lib/mnesia/src/mnesia_app.erl b/lib/mnesia/src/mnesia_app.erl
new file mode 100644
index 0000000000..4d89011db2
--- /dev/null
+++ b/lib/mnesia/src/mnesia_app.erl
@@ -0,0 +1,41 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% 
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+-module(mnesia_app).
+
+-behaviour(application).
+
+-export([start/2, stop/1]).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% application callback functions
+
+start(normal, Args) ->
+    case mnesia_sup:start_link(Args) of
+	{ok, Pid} ->
+	    {ok, Pid, {normal, Args}};
+	Error ->
+	    Error
+    end;
+start(_, _) ->
+    {error, badarg}.
+
+stop(_StartArgs) ->
+    ok.