Support piping log data over the service protocol

runtime/vm/timeline.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 <cstdlib>
 
 #include "vm/isolate.h"
 #include "vm/json_stream.h"
 #include "vm/object.h"
 #include "vm/thread.h"
@@ skipping 179 matching lines @@
 
 
 void TimelineEvent::PrintJSON(JSONStream* stream) const {
   JSONObject obj(stream);
   int64_t pid = GetPid(Isolate::Current());
   int64_t tid = GetTid(thread_);
   obj.AddProperty("name", label_);
   obj.AddProperty("cat", stream_->name());
   obj.AddProperty64("tid", tid);
   obj.AddProperty64("pid", pid);
-  obj.AddProperty("ts", static_cast<double>(TimeOrigin()));
+  obj.AddPropertyTimeMillis("ts", TimeOrigin());
 
   switch (event_type()) {
     case kDuration: {
       obj.AddProperty("ph", "X");
-      obj.AddProperty("dur", static_cast<double>(TimeDuration()));
+      obj.AddPropertyTimeMillis("dur", TimeDuration());
     }
     break;
     case kInstant: {
       obj.AddProperty("ph", "i");
       obj.AddProperty("s", "p");
     }
     break;
     case kAsyncBegin: {
       obj.AddProperty("ph", "b");
       obj.AddPropertyF("id", "%" Px64 "", AsyncId());
@@ skipping 292 matching lines @@
   return event;
 }
 
 
 void TimelineEventStreamingRecorder::CompleteEvent(TimelineEvent* event) {
   StreamEvent(event);
   delete event;
 }
 
 }  // namespace dart