misc fix

apps/emqtt/include/emqtt_frame.hrl

@@ -25,8 +25,6 @@
 -define(MQTT_PROTO_MAJOR, 3).
 -define(MQTT_PROTO_MINOR, 1).
 
--define(CLIENT_ID_MAXLEN, 23).
-
 %% frame types
 
 -define(CONNECT,      1).

apps/emqtt/src/emqtt.erl

@@ -29,7 +29,7 @@
 	{packet,    raw},
 	{reuseaddr, true},
 	{backlog,   512},
-	{nodelay,   false}
+	{nodelay,   true}
 ]).
 
 listen(Listeners) when is_list(Listeners) ->

apps/emqtt/src/emqtt_client.erl

@@ -173,9 +173,9 @@ handle_info(Info, State) ->
 	?ERROR("badinfo :~p",[Info]),
 	{stop, {badinfo, Info}, State}.
 
-terminate(_Reason, #state{keep_alive=KeepAlive}) ->
+terminate(_Reason, #state{client_id = ClientId, keep_alive=KeepAlive}) ->
 	emqtt_keep_alive:cancel(KeepAlive),
-    emqtt_cm:destroy(self()),
+    emqtt_cm:destroy(ClientId, self()),
 	ok.
 
 code_change(_OldVsn, State, _Extra) ->

apps/emqtt/src/emqtt_cm.erl

@@ -29,15 +29,15 @@
 
 -define(SERVER, ?MODULE).
 
+-define(TAB, emqtt_client).
+
 %% ------------------------------------------------------------------
 %% API Function Exports
 %% ------------------------------------------------------------------
 
 -export([start_link/0]).
 
--export([create/2,
-		 destroy/1,
-		 lookup/1]).
+-export([lookup/1, create/2, destroy/2]).
 
 %% ------------------------------------------------------------------
 %% gen_server Function Exports
@@ -59,28 +59,17 @@ start_link() ->
 -spec lookup(ClientId :: binary()) -> pid() | undefined.
 lookup(ClientId) ->
 	case ets:lookup(emqtt_client, ClientId) of
-	[{_, Pid}] -> Pid;
+	[{_, Pid, _}] -> Pid;
 	[] -> undefined
 	end.
 
 -spec create(ClientId :: binary(), Pid :: pid()) -> ok.
 create(ClientId, Pid) ->
-	case lookup(ClientId) of
-        Pid ->
-            ignore;
-		OldPid when is_pid(OldPid) ->
-			OldPid ! {stop, duplicate_id},
-            ets:insert(emqtt_client, {ClientId, Pid});
-		undefined -> 
-            ets:insert(emqtt_client, {ClientId, Pid})
-	end.
+	gen_server:call(?SERVER, {create, ClientId, Pid}).
 
--spec destroy(binary() | pid()) -> ok.
-destroy(ClientId) when is_binary(ClientId) ->
-	ets:delete(emqtt_client, ClientId);
-
-destroy(Pid) when is_pid(Pid) ->
-	ets:match_delete(emqtt_client, {{'_', Pid}}).
+-spec destroy(ClientId :: binary(), Pid :: pid()) -> ok.
+destroy(ClientId, Pid) when is_binary(ClientId) ->
+	gen_server:cast(?SERVER, {destroy, ClientId, Pid});
 
 %% ------------------------------------------------------------------
 %% gen_server Function Definitions
@@ -88,15 +77,45 @@ destroy(Pid) when is_pid(Pid) ->
 
 init(Args) ->
 	%on one node
-	ets:new(emqtt_client, [named_table, public]),
+	ets:new(?TAB, [set, named_table, protected]),
     {ok, Args}.
 
+handle_call({create, ClientId, Pid}, _From, State) ->
+	case ets:lookup(?TAB, ClientId) of
+        [{_, Pid, _}] ->
+			?ERROR("client '~s' has been registered with ~p", [ClientId, Pid]),
+            ignore;
+		[{_, OldPid, MRef}] ->
+			OldPid ! {stop, duplicate_id},
+			erlang:demonitor(MRef),
+            ets:insert(emqtt_client, {ClientId, Pid, erlang:monitor(process, Pid)});
+		[] -> 
+            ets:insert(emqtt_client, {ClientId, Pid, erlang:monitor(process, Pid)})
+	end.
+	{reply, ok, State};
+
 handle_call(_Request, _From, State) ->
     {reply, ok, State}.
 
+handle_cast({destroy, ClientId, Pid}, State) when is_binary(ClientId) ->
+	case ets:lookup(?TAB, ClientId) of
+	[{_, Pid, MRef}] ->
+		erlang:demonitor(MRef),
+		ets:delete(?TAB, ClientId);
+	[_] ->
+		ignore;
+	[] ->
+		?ERROR("cannot find client '~s' with ~p", [ClientId, Pid])
+	end
+	{noreply, State};
+
 handle_cast(_Msg, State) ->
     {noreply, State}.
 
+handle_info({'DOWN', MRef, process, DownPid, _Reason}, State) ->
+	ets:match_delete(emqtt_client, {{'_', DownPid, MRef}}),
+    {noreply, State}.
+
 handle_info(_Info, State) ->
     {noreply, State}.
 

apps/emqtt/src/emqtt_router.erl

@@ -0,0 +1,28 @@
+%%-----------------------------------------------------------------------------
+%% Copyright (c) 2014, Feng Lee <feng@slimchat.io>
+%% 
+%% Permission is hereby granted, free of charge, to any person obtaining a copy
+%% of this software and associated documentation files (the "Software"), to deal
+%% in the Software without restriction, including without limitation the rights
+%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+%% copies of the Software, and to permit persons to whom the Software is
+%% furnished to do so, subject to the following conditions:
+%% 
+%% The above copyright notice and this permission notice shall be included in all
+%% copies or substantial portions of the Software.
+%% 
+%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+%% SOFTWARE.
+%%------------------------------------------------------------------------------
+
+-module(emqtt_router).
+
+%%Router Chain-->
+%%--->In
+%%Out<---
+