Initial Timeline Events

runtime/vm/isolate.h

Index: runtime/vm/isolate.h
diff --git a/runtime/vm/isolate.h b/runtime/vm/isolate.h
index a3758a2ec19664cb362eefbf8f9c9506d9516767..204bdcaceca3fab175dad5445fbc426a0c0f53a0 100644
--- a/runtime/vm/isolate.h
+++ b/runtime/vm/isolate.h
@@ -18,8 +18,9 @@
 #include "vm/tags.h"
 #include "vm/thread.h"
 #include "vm/os_thread.h"
-#include "vm/trace_buffer.h"
+#include "vm/timeline.h"
 #include "vm/timer.h"
+#include "vm/trace_buffer.h"
 
 namespace dart {
 
@@ -555,6 +556,14 @@ class Isolate : public BaseIsolate {
     return trace_buffer_;
   }
 
+  void SetTimelineEventBuffer(TimelineEventBuffer* timeline_event_buffer);
+
+  TimelineEventBuffer* timeline_event_buffer() const {
+    return timeline_event_buffer_;
+  }
+
+  void RemoveTimelineEventBuffer();
+
   DeoptContext* deopt_context() const { return deopt_context_; }
   void set_deopt_context(DeoptContext* value) {
     ASSERT(value == NULL || deopt_context_ == NULL);
@@ -654,6 +663,11 @@ class Isolate : public BaseIsolate {
   ISOLATE_METRIC_LIST(ISOLATE_METRIC_ACCESSOR);
 #undef ISOLATE_METRIC_ACCESSOR
 
+#define ISOLATE_TIMELINE_STREAM_ACCESSOR(name, enabled_by_default)             \
+  TimelineStream* Get##name##Stream() { return &stream_##name##_; }
+  ISOLATE_TIMELINE_STREAM_LIST(ISOLATE_TIMELINE_STREAM_ACCESSOR)
+#undef ISOLATE_TIMELINE_STREAM_ACCESSOR
+
   static intptr_t IsolateListLength();
 
   RawGrowableObjectArray* tag_table() const { return tag_table_; }
@@ -790,6 +804,9 @@ class Isolate : public BaseIsolate {
   // Trace buffer support.
   TraceBuffer* trace_buffer_;
 
+  // TimelineEvent buffer.
+  TimelineEventBuffer* timeline_event_buffer_;
+
   IsolateProfilerData* profiler_data_;
   Mutex profiler_data_mutex_;
   InterruptableThreadState* thread_state_;
@@ -832,6 +849,11 @@ class Isolate : public BaseIsolate {
   ISOLATE_METRIC_LIST(ISOLATE_METRIC_VARIABLE);
 #undef ISOLATE_METRIC_VARIABLE
 
+#define ISOLATE_TIMELINE_STREAM_VARIABLE(name, enabled_by_default)             \
+  TimelineStream stream_##name##_;
+  ISOLATE_TIMELINE_STREAM_LIST(ISOLATE_TIMELINE_STREAM_VARIABLE)
+#undef ISOLATE_TIMELINE_STREAM_VARIABLE
+
   VMHandles reusable_handles_;
 
   static Dart_IsolateCreateCallback create_callback_;