add confirm related info keys

Added the following info_keys:
  - confirm :: The type of the channel.  Is one of none, single,
               multiple.
  - unconfirmed :: The number of unconfirmed messages.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl
index 4bb1f13b..b558a0cc 100644
--- a/src/rabbit_channel.erl
+++ b/src/rabbit_channel.erl
@@ -57,8 +57,10 @@
 -define(STATISTICS_KEYS,
         [pid,
          transactional,
+         confirm,
          consumer_count,
          messages_unacknowledged,
+         unconfirmed,
          acks_uncommitted,
          prefetch_count]).
 
@@ -1288,8 +1290,16 @@ i(number,         #ch{channel          = Channel})   -> Channel;
 i(user,           #ch{username         = Username})  -> Username;
 i(vhost,          #ch{virtual_host     = VHost})     -> VHost;
 i(transactional,  #ch{transaction_id   = TxnKey})    -> TxnKey =/= none;
+i(confirm,        #ch{confirm_enabled  = CE,
+                      confirm_multiple = CM})        -> case {CE, CM} of
+                                                            {false, _} -> none;
+                                                            {_, false} -> single;
+                                                            {_, true}  -> multiple
+                                                        end;
 i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) ->
     dict:size(ConsumerMapping);
+i(unconfirmed,   #ch{need_confirming = NC}) ->
+    gb_sets:size(NC);
 i(messages_unacknowledged, #ch{unacked_message_q = UAMQ,
                                uncommitted_ack_q = UAQ}) ->
     queue:len(UAMQ) + queue:len(UAQ);