[corelib] dart:developer timeline flow events

runtime/lib/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 "vm/bootstrap_natives.h"
 
 #include "include/dart_api.h"
 
 #include "vm/native_entry.h"
 #include "vm/object.h"
@@ skipping 92 matching lines @@
     return Object::null();
   }
 
   DartTimelineEventHelpers::ReportCompleteEvent(
       thread, zone, event, start.AsInt64Value(), start_cpu.AsInt64Value(),
       category.ToCString(), name.ToCString(), args.ToCString());
 #endif  // !defined(PRODUCT)
   return Object::null();
 }
 
+DEFINE_NATIVE_ENTRY(Timeline_reportFlowEvent, 7) {
+#ifndef PRODUCT
+  if (!FLAG_support_timeline) {
+    return Object::null();
+  }
+  GET_NON_NULL_NATIVE_ARGUMENT(Integer, start, arguments->NativeArgAt(0));
+  GET_NON_NULL_NATIVE_ARGUMENT(Integer, start_cpu, arguments->NativeArgAt(1));
+  GET_NON_NULL_NATIVE_ARGUMENT(String, category, arguments->NativeArgAt(2));
+  GET_NON_NULL_NATIVE_ARGUMENT(String, name, arguments->NativeArgAt(3));
+  GET_NON_NULL_NATIVE_ARGUMENT(Integer, type, arguments->NativeArgAt(4));
+  GET_NON_NULL_NATIVE_ARGUMENT(Integer, flow_id, arguments->NativeArgAt(5));
+  GET_NON_NULL_NATIVE_ARGUMENT(String, args, arguments->NativeArgAt(6));
+
+  TimelineEventRecorder* recorder = Timeline::recorder();
+  if (recorder == NULL) {
+    return Object::null();
+  }
+
+  TimelineEvent* event = Timeline::GetDartStream()->StartEvent();
+  if (event == NULL) {
+    // Stream was turned off.
+    return Object::null();
+  }
+
+  DartTimelineEventHelpers::ReportFlowEvent(
+      thread, zone, event, start.AsInt64Value(), start_cpu.AsInt64Value(),
+      category.ToCString(), name.ToCString(), type.AsInt64Value(),
+      flow_id.AsInt64Value(), args.ToCString());
+#endif  // !defined(PRODUCT)
+  return Object::null();
+}
+
 DEFINE_NATIVE_ENTRY(Timeline_reportInstantEvent, 4) {
 #ifndef PRODUCT
   if (!FLAG_support_timeline) {
     return Object::null();
   }
   GET_NON_NULL_NATIVE_ARGUMENT(Integer, start, arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(String, category, arguments->NativeArgAt(1));
   GET_NON_NULL_NATIVE_ARGUMENT(String, name, arguments->NativeArgAt(2));
   GET_NON_NULL_NATIVE_ARGUMENT(String, args, arguments->NativeArgAt(3));
 
   TimelineEventRecorder* recorder = Timeline::recorder();
   if (recorder == NULL) {
     return Object::null();
   }
 
   TimelineEvent* event = Timeline::GetDartStream()->StartEvent();
   if (event == NULL) {
     // Stream was turned off.
     return Object::null();
   }
 
   DartTimelineEventHelpers::ReportInstantEvent(
       thread, zone, event, start.AsInt64Value(), category.ToCString(),
       name.ToCString(), args.ToCString());
 #endif
   return Object::null();
 }
 
 }  // namespace dart