introduce channel registry

1 files changed, 15 insertions, 8 deletions

diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl
index f8e100979d..ab4fc6e3e0 100644
--- a/src/rabbit_channel.erl
+++ b/src/rabbit_channel.erl
@@ -37,6 +37,7 @@
 
 -export([start_link/5, do/2, do/3, shutdown/1]).
 -export([send_command/2, deliver/4, conserve_memory/2]).
+-export([all/0]).
 
 -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]).
 
@@ -62,6 +63,7 @@
 -spec(send_command/2 :: (pid(), amqp_method()) -> 'ok').
 -spec(deliver/4 :: (pid(), ctag(), boolean(), msg()) -> 'ok').
 -spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok').
+-spec(all/0 :: () -> [pid()]).
 
 -endif.
 
@@ -91,12 +93,16 @@ deliver(Pid, ConsumerTag, AckRequired, Msg) ->
 conserve_memory(Pid, Conserve) ->
     gen_server2:pcast(Pid, 9, {conserve_memory, Conserve}).
 
+all() ->
+    pg_local:get_members(rabbit_channels).
+
 %%---------------------------------------------------------------------------
 
 init([Channel, ReaderPid, WriterPid, Username, VHost]) ->
     process_flag(trap_exit, true),
     link(WriterPid),
     rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}),
+    ok = pg_local:join(rabbit_channels, self()),
     {ok, #ch{state                   = starting,
              channel                 = Channel,
              reader_pid              = ReaderPid,
@@ -168,20 +174,16 @@ handle_info(timeout, State) ->
     ok = clear_permission_cache(),
     {noreply, State, hibernate}.
 
-terminate(_Reason, #ch{writer_pid = WriterPid, limiter_pid = LimiterPid,
-                       state = terminating}) ->
-    rabbit_writer:shutdown(WriterPid),
-    rabbit_limiter:shutdown(LimiterPid);
+terminate(_Reason, State = #ch{state = terminating}) ->
+    terminate(State);
 
-terminate(Reason, State = #ch{writer_pid = WriterPid,
-                              limiter_pid = LimiterPid}) ->
+terminate(Reason, State) ->
     Res = rollback_and_notify(State),
     case Reason of
         normal -> ok = Res;
         _      -> ok
     end,
-    rabbit_writer:shutdown(WriterPid),
-    rabbit_limiter:shutdown(LimiterPid).
+    terminate(State).
 
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
@@ -951,3 +953,8 @@ internal_deliver(WriterPid, Notify, ConsumerTag, DeliveryTag,
                         WriterPid, QPid, self(), M, Content);
              false -> rabbit_writer:send_command(WriterPid, M, Content)
          end.
+
+terminate(#ch{writer_pid = WriterPid, limiter_pid = LimiterPid}) ->
+    pg_local:leave(rabbit_channels, self()),
+    rabbit_writer:shutdown(WriterPid),
+    rabbit_limiter:shutdown(LimiterPid).