- Make ports be less predictable.

runtime/vm/message_handler.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/message_handler.h"
 #include "vm/port.h"
 #include "vm/dart.h"
 
 namespace dart {
 
@@ skipping 233 matching lines @@
     // The handler may have been deleted after this point.
   }
 }
 
 
 void MessageHandler::ClosePort(Dart_Port port) {
   MonitorLocker ml(&monitor_);
   if (FLAG_trace_isolates) {
     OS::Print("[-] Closing port:\n"
               "\thandler:    %s\n"
-              "\tport:       %" Pd64 "\n",
-              name(), port);
+              "\tport:       %" Pd64 "\n"
+              "\tports:      control(%" Pd ") live(%" Pd ")\n",
+              name(), port, control_ports_, live_ports_);
   }
 }
 
 
 void MessageHandler::CloseAllPorts() {
   MonitorLocker ml(&monitor_);
   if (FLAG_trace_isolates) {
     OS::Print("[-] Closing all ports:\n"
               "\thandler:    %s\n",
               name());
@@ skipping 32 matching lines @@
 
 void MessageHandler::decrement_control_ports() {
   MonitorLocker ml(&monitor_);
 #if defined(DEBUG)
   CheckAccess();
 #endif
   control_ports_--;
 }
 
 }  // namespace dart