Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/toolkit/components/startup/StartupTimeline.cpp b/toolkit/components/startup/StartupTimeline.cpp
new file mode 100644
index 0000000000..689437b043
--- /dev/null
+++ b/toolkit/components/startup/StartupTimeline.cpp
@@ -0,0 +1,55 @@
+/* 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 "StartupTimeline.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/TimeStamp.h"
+#include "nsXULAppAPI.h"
+
+namespace mozilla {
+
+TimeStamp StartupTimeline::sStartupTimeline[StartupTimeline::MAX_EVENT_ID];
+const char*
+    StartupTimeline::sStartupTimelineDesc[StartupTimeline::MAX_EVENT_ID] = {
+#define mozilla_StartupTimeline_Event(ev, desc) desc,
+#include "StartupTimeline.h"
+#undef mozilla_StartupTimeline_Event
+};
+
+} /* namespace mozilla */
+
+using mozilla::StartupTimeline;
+using mozilla::TimeStamp;
+
+/**
+ * The XRE_StartupTimeline_Record function is to be used by embedding
+ * applications that can't use mozilla::StartupTimeline::Record() directly.
+ *
+ * @param aEvent The event to be recorded, must correspond to an element of the
+ *               mozilla::StartupTimeline::Event enumartion
+ * @param aWhen  The time at which the event happened
+ */
+void XRE_StartupTimelineRecord(int aEvent, TimeStamp aWhen) {
+  StartupTimeline::Record((StartupTimeline::Event)aEvent, aWhen);
+}
+
+void StartupTimeline::RecordOnce(Event ev) { RecordOnce(ev, TimeStamp::Now()); }
+
+void StartupTimeline::RecordOnce(Event ev, const TimeStamp& aWhen) {
+  if (HasRecord(ev)) {
+    return;
+  }
+
+  Record(ev, aWhen);
+
+  // Record first paint timestamp as a scalar.
+  if (ev == FIRST_PAINT || ev == FIRST_PAINT2) {
+    uint32_t firstPaintTime =
+        (uint32_t)(aWhen - TimeStamp::ProcessCreation()).ToMilliseconds();
+    Telemetry::ScalarSet(ev == FIRST_PAINT
+                             ? Telemetry::ScalarID::TIMESTAMPS_FIRST_PAINT
+                             : Telemetry::ScalarID::TIMESTAMPS_FIRST_PAINT_TWO,
+                         firstPaintTime);
+  }
+}