Merge pull request #73 from grisp/sylane/reboot-callback

Add reboot callback

Author: sylane

src/grisp_connect.app.src

@@ -24,6 +24,7 @@
         {ws_request_timeout, 5_000},
         {ws_ping_timeout, 60_000},
         {ws_max_retries, infinity},
+        {reboot_cb, undefined},
         {allow_expired_certs, false},
         % Must be writable and match the cacertfile in ssl_dist_opts.rel
         {board_certificate, "/etc/board.pem"},

src/grisp_connect_client.erl

@@ -267,7 +267,7 @@ handle_common(cast, {notify, _Method, _Type, _Params}, _State, _Data) ->
     % We ignore notifications sent while disconnected
     keep_state_and_data;
 handle_common(info, reboot, _, _) ->
-    init:stop(),
+    grisp_connect_utils:reboot(),
     keep_state_and_data;
 handle_common(info, {'EXIT', Conn, Reason}, _State, Data = #data{conn = Conn}) ->
     RealReason = case Reason of

src/grisp_connect_utils.erl

@@ -5,6 +5,7 @@
 
 % API functions
 -export([using_grisp_netman/0]).
+-export([reboot/0]).
 -export([retry_delay/1]).
 -export([check_inet_ipv4/0]).
 
@@ -15,6 +16,19 @@ using_grisp_netman() ->
     RunningApps = application:which_applications(),
     lists:keymember(grisp_netman, 1, RunningApps).
 
+reboot() ->
+    case application:get_env(grisp_connect, reboot_cb) of
+        undefined ->
+            init:stop();
+        {ok, undefined} ->
+            init:stop();
+        {ok, {Module, Function}}
+          when is_atom(Module), is_atom(Function) ->
+            Module:Function();
+        {ok, Value} ->
+            error({invalid_env, reboot_cb, Value})
+    end.
+
 check_inet_ipv4() ->
     case get_ip_of_valid_interfaces() of
         {ok, {IP1, _, _, _} = IP} when IP1 =/= 127 -> {ok, IP};