We can now name the current VM using the service protocol.

runtime/vm/service_event.cc

 // Copyright (c) 2015, 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/service_event.h"
 
 #include "vm/message_handler.h"
 
 namespace dart {
 
@@ skipping 73 matching lines @@
     set_top_frame(debugger_event->top_frame());
   }
   if (debugger_event->timestamp() != -1) {
     timestamp_ = debugger_event->timestamp();
   }
 }
 
 
 const char* ServiceEvent::KindAsCString() const {
   switch (kind()) {
+    case kVMUpdate:
+      return "VMUpdate";
     case kIsolateStart:
       return "IsolateStart";
     case kIsolateRunnable:
       return "IsolateRunnable";
     case kIsolateExit:
       return "IsolateExit";
     case kIsolateUpdate:
       return "IsolateUpdate";
     case kPauseStart:
       return "PauseStart";
@@ skipping 27 matching lines @@
       return "Illegal";
     default:
       UNREACHABLE();
       return "Unknown";
   }
 }
 
 
 const char* ServiceEvent::stream_id() const {
   switch (kind()) {
+    case kVMUpdate:
+      return Service::vm_stream.id();
+
     case kIsolateStart:
     case kIsolateRunnable:
     case kIsolateExit:
     case kIsolateUpdate:
       return Service::isolate_stream.id();
 
     case kPauseStart:
     case kPauseExit:
     case kPauseBreakpoint:
     case kPauseInterrupted:
@@ skipping 76 matching lines @@
     logRecord.AddProperty("error", *(log_record_.error));
     logRecord.AddProperty("stackTrace", *(log_record_.stack_trace));
   }
 }
 
 
 void ServiceEvent::PrintJSONHeader(JSONObject* jsobj) const {
   ASSERT(jsobj != NULL);
   jsobj->AddProperty("type", "Event");
   jsobj->AddProperty("kind", KindAsCString());
-  jsobj->AddProperty("isolate", isolate());
+  if (kind() == kVMUpdate) {
+    jsobj->AddPropertyVM("vm");
+  } else {
+    jsobj->AddProperty("isolate", isolate());
+  }
   ASSERT(timestamp_ != -1);
   jsobj->AddPropertyTimeMillis("timestamp", timestamp_);
 }
 
 }  // namespace dart