1 files changed, 42 insertions, 0 deletions
diff --git a/system/docshell/base/timeline/AutoGlobalTimelineMarker.cpp b/system/docshell/base/timeline/AutoGlobalTimelineMarker.cpp
new file mode 100644
index 000000000..5e894b970
--- /dev/null
+++ b/system/docshell/base/timeline/AutoGlobalTimelineMarker.cpp
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "AutoGlobalTimelineMarker.h"
+
+#include "TimelineConsumers.h"
+#include "MainThreadUtils.h"
+
+namespace mozilla {
+
+AutoGlobalTimelineMarker::AutoGlobalTimelineMarker(const char* aName,
+                                                   MarkerStackRequest aStackRequest /* = STACK */
+                                                   MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)
+  : mName(aName)
+  , mStackRequest(aStackRequest)
+{
+  MOZ_GUARD_OBJECT_NOTIFIER_INIT;
+  MOZ_ASSERT(NS_IsMainThread());
+
+  RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
+  if (!timelines || timelines->IsEmpty()) {
+    return;
+  }
+
+  timelines->AddMarkerForAllObservedDocShells(mName, MarkerTracingType::START, mStackRequest);
+}
+
+AutoGlobalTimelineMarker::~AutoGlobalTimelineMarker()
+{
+  MOZ_ASSERT(NS_IsMainThread());
+
+  RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
+  if (!timelines || timelines->IsEmpty()) {
+    return;
+  }
+
+  timelines->AddMarkerForAllObservedDocShells(mName, MarkerTracingType::END, mStackRequest);
+}
+
+} // namespace mozilla