Add API to set thread name

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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 "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "lib/stacktrace.h"
@@ skipping 5940 matching lines @@
                                     Dart_Timeline_Event_Type type,
                                     intptr_t argument_count,
                                     const char** argument_names,
                                     const char** argument_values) {
   if (!FLAG_support_timeline) {
     return;
   }
   if (type < Dart_Timeline_Event_Begin) {
     return;
   }
-  if (type > Dart_Timeline_Event_Metadata) {
+  if (type > Dart_Timeline_Event_Counter) {
     return;
   }
   TimelineStream* stream = Timeline::GetEmbedderStream();
   ASSERT(stream != NULL);
   TimelineEvent* event = stream->StartEvent();
   if (event == NULL) {
     return;
   }
   switch (type) {
     case Dart_Timeline_Event_Begin:
@@ skipping 13 matching lines @@
     break;
     case Dart_Timeline_Event_Async_End:
       event->AsyncEnd(label, timestamp1_or_async_id, timestamp0);
     break;
     case Dart_Timeline_Event_Async_Instant:
       event->AsyncInstant(label, timestamp1_or_async_id, timestamp0);
     break;
     case Dart_Timeline_Event_Counter:
       event->Counter(label, timestamp0);
     break;
-    case Dart_Timeline_Event_Metadata:
-      event->Metadata(label, timestamp0);
-    break;
     default:
       FATAL("Unknown Dart_Timeline_Event_Type");
   }
   event->SetNumArguments(argument_count);
   for (intptr_t i = 0; i < argument_count; i++) {
     event->CopyArgument(i, argument_names[i], argument_values[i]);
   }
   event->Complete();
 }
 
 
+DART_EXPORT void Dart_SetThreadName(const char* name) {
+  OSThread* thread = OSThread::Current();
+  if (thread == NULL) {
+    // VM is shutting down.
+    return;
+  }
+  thread->SetName(name);
+}
+
+
 // The precompiler is included in dart_bootstrap and dart_noopt, and
 // excluded from dart and dart_precompiled_runtime.
 #if !defined(DART_PRECOMPILER)
 
 DART_EXPORT Dart_Handle Dart_Precompile(
     Dart_QualifiedFunctionName entry_points[],
     bool reset_fields) {
   UNREACHABLE();
   return 0;
 }
@@ skipping 85 matching lines @@
   return Api::Success();
 }
 #endif  // DART_PRECOMPILER
 
 
 DART_EXPORT bool Dart_IsRunningPrecompiledCode() {
   return Dart::IsRunningPrecompiledCode();
 }
 
 }  // namespace dart