src: trace_event: secondary storage for metadata

Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

PR-URL: https://github.com/nodejs/node/pull/20900
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

1 files changed, 9 insertions, 5 deletions

diff --git a/src/tracing/trace_event.cc b/src/tracing/trace_event.cc
index f661dd5c69..9232c34c4c 100644
--- a/src/tracing/trace_event.cc
+++ b/src/tracing/trace_event.cc
@@ -3,14 +3,18 @@
 namespace node {
 namespace tracing {
 
-v8::TracingController* g_controller = nullptr;
+Agent* g_agent = nullptr;
 
-void TraceEventHelper::SetTracingController(v8::TracingController* controller) {
-  g_controller = controller;
+void TraceEventHelper::SetAgent(Agent* agent) {
+  g_agent = agent;
 }
 
-v8::TracingController* TraceEventHelper::GetTracingController() {
-  return g_controller;
+Agent* TraceEventHelper::GetAgent() {
+  return g_agent;
+}
+
+TracingController* TraceEventHelper::GetTracingController() {
+  return g_agent->GetTracingController();
 }
 
 }  // namespace tracing