Added new 'root' supervisor, and mnesia as child to this supervisor

ebin/ggs.app

@@ -3,8 +3,7 @@
     {vsn, "0.1.0"},
     {modules, [
         ggs_app,
-        ggs_sup,
+        ggs_sup
-        ggs_server
             ]},
     {registered, [ggs_sup]},
     {applications, [kernel, stdlib]},

src/ggs_mnesia_controller_server.erl

@@ -0,0 +1,63 @@
+-module(ggs_mnesia_controller_server).
+-behaviour(gen_server).
+
+%% API
+-export([start_link/0,
+         stop/0
+         ]).
+
+%% gen_server callbacks
+-export([init/1, handle_call/3, handle_cast/2, 
+         handle_info/2, terminate/2, code_change/3]).
+
+
+-define(SERVER, ?MODULE).
+
+-record(state, {}).
+
+%%%====================================================
+%%% API
+%%%====================================================
+
+%%-----------------------------------------------------
+%% @doc Starts the server
+%% @end
+%%-----------------------------------------------------
+start_link() ->
+    gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
+
+%%-----------------------------------------------------
+%% @doc     Stops the server.
+%% @spec    stop() -> ok
+%% @end
+%%-----------------------------------------------------
+stop() ->
+    gen_server:cast(?SERVER, stop).
+
+%%-----------------------------------------------------
+%% gen_server callbacks
+%%-----------------------------------------------------
+
+init([]) ->
+    mnesia:create_schema([node()]),
+    mnesia:start(),
+    {ok, {}, 0}.
+
+handle_cast(a, State) ->
+    {noreply, State}.
+
+handle_call({getValue, Key},_From,State) ->
+    {reply,value_of_key_requested_goes_here, State}.
+
+handle_info(timeout, State) ->
+    {noreply, State}.
+
+terminate(_Reason, _State) ->
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%-----------------------------------------------------
+%% Internal functions
+%%-----------------------------------------------------

src/ggs_server.erl

@@ -109,6 +109,7 @@ do_JSCall(Socket, Data, State) ->
         {hello} ->
             Client = getRef(),
             send(Socket, Client, "__ok_hello"),
+            %gen_server:call(ggs_mnesia_controller_server, {hello, "Someone said hello!"}),
             {Client, JSVM};
         {echo, RefID, _, MSG} ->
             send(Socket, RefID, "Your VM is ", getJSVM(RefID, State)),

src/ggs_server_sup.erl

@@ -0,0 +1,41 @@
+-module(ggs_server_sup).
+-behaviour(supervisor).
+
+%% API
+-export([start/1, start_link/1]).
+
+%% Supervisor callbacks
+-export([init/1]).
+-define(SERVER, ?MODULE).
+
+start(Port) ->
+    [FirstArg] = Port, 
+    {IntPort, _} = string:to_integer(FirstArg),
+    start_link(IntPort).
+
+start_link(Port) ->
+    supervisor:start_link({local, ?SERVER}, ?MODULE, [Port]).
+
+init([Port]) ->
+    GGSServer =    {ggs_server, 
+                    {ggs_server, start_link, [Port]},
+                    permanent, 
+                    2000, 
+                    worker, 
+                    [ggs_server]
+                },
+    MnesiaServer = {ggs_mnesia_controller_server,
+                    {ggs_mnesia_controller_server, start_link, []},
+                    permanent,
+                    2000,
+                    worker,
+                    [ggs_mnesia_controller_server]
+                },
+    Children = [MnesiaServer, GGSServer],
+
+    RestartStrategy = { one_for_one, % Restart only crashing child
+                        10,          % Allow ten crashes per..
+                        1            % 1 second, then crash supervisor.
+                      },
+    {ok, {RestartStrategy, Children}}.
+

src/ggs_sup.erl

@@ -17,12 +17,12 @@ start_link(Port) ->
     supervisor:start_link({local, ?SERVER}, ?MODULE, [Port]).
 
 init([Port]) ->
-    Server =    {ggs_server, 
+    Server =    {ggs_server_sup, 
-                    {ggs_server, start_link, [Port]},
+                    {ggs_server_sup, start_link, [Port]},
                     permanent, 
                     2000, 
                     worker, 
-                    [ggs_server]
+                    [ggs_server_sup]
                 },
     Children = [Server],
 

start

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-erl -boot start_sasl -pa erlang_js/ebin/ -pa ebin -pa src -s start_ggs
+erl -mnesia -boot start_sasl -pa erlang_js/ebin/ -pa ebin -pa src -s start_ggs