Increment csrt ioq called

Related PR: ioq 28

Author: chewbranca

src/ioq.erl

@@ -53,12 +53,14 @@ call(Pid, {prompt, _} = Msg, Priority) ->
 call(Pid, {data, _} = Msg, Priority) ->
     ioq_osq:call(Pid, Msg, Priority);
 call(Fd, Msg, Priority) ->
+    couch_srt:ioq_called(),
     case ioq2_enabled() of
         false -> ioq_server:call(Fd, Msg, Priority);
         true  -> ioq_server2:call(Fd, Msg, Priority)
     end.
 
 call_search(Fd, Msg, Priority) ->
+    couch_srt:ioq_called(),
     case ioq2_enabled() of
         false -> ioq_server:call(Fd, Msg, Priority);
         true  -> ioq_server2:call_search(Fd, Msg, Priority)