1 files changed, 86 insertions, 0 deletions
diff --git a/toolkit/components/startup/StartupTimeline.h b/toolkit/components/startup/StartupTimeline.h
new file mode 100644
index 0000000000..f7d5ae5db4
--- /dev/null
+++ b/toolkit/components/startup/StartupTimeline.h
@@ -0,0 +1,86 @@
+/* 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/. */
+
+#ifdef mozilla_StartupTimeline_Event
+// clang-format off
+  mozilla_StartupTimeline_Event(PROCESS_CREATION, "process")
+  mozilla_StartupTimeline_Event(START, "start")
+  mozilla_StartupTimeline_Event(MAIN, "main")
+  mozilla_StartupTimeline_Event(SELECT_PROFILE, "selectProfile")
+  mozilla_StartupTimeline_Event(AFTER_PROFILE_LOCKED, "afterProfileLocked")
+
+  // Record the beginning and end of startup crash detection to compare with
+  // crash stats to know whether detection should be improved to start or end
+  // sooner.
+  mozilla_StartupTimeline_Event(STARTUP_CRASH_DETECTION_BEGIN, "startupCrashDetectionBegin")
+  mozilla_StartupTimeline_Event(STARTUP_CRASH_DETECTION_END,"startupCrashDetectionEnd")
+  mozilla_StartupTimeline_Event(FIRST_PAINT, "firstPaint")
+  mozilla_StartupTimeline_Event(FIRST_PAINT2, "firstPaint2")
+  mozilla_StartupTimeline_Event(SESSION_RESTORE_INIT, "sessionRestoreInit")
+  mozilla_StartupTimeline_Event(SESSION_RESTORED, "sessionRestored")
+  mozilla_StartupTimeline_Event(CREATE_TOP_LEVEL_WINDOW, "createTopLevelWindow")
+  mozilla_StartupTimeline_Event(LINKER_INITIALIZED, "linkerInitialized")
+  mozilla_StartupTimeline_Event(LIBRARIES_LOADED, "librariesLoaded")
+  mozilla_StartupTimeline_Event(FIRST_LOAD_URI, "firstLoadURI")
+
+  // The following are actually shutdown events, used to monitor the duration
+  // of shutdown
+  mozilla_StartupTimeline_Event(QUIT_APPLICATION, "quitApplication")
+  mozilla_StartupTimeline_Event(PROFILE_BEFORE_CHANGE, "profileBeforeChange")
+// clang-format on
+#else
+
+#  ifndef mozilla_StartupTimeline
+#    define mozilla_StartupTimeline
+
+#    include "mozilla/TimeStamp.h"
+#    include "nscore.h"
+
+#    ifdef MOZILLA_INTERNAL_API
+#      include "mozilla/ProfilerMarkers.h"
+#    endif
+
+namespace mozilla {
+
+void RecordShutdownEndTimeStamp();
+void RecordShutdownStartTimeStamp();
+
+class StartupTimeline {
+ public:
+  enum Event {
+#    define mozilla_StartupTimeline_Event(ev, z) ev,
+#    include "StartupTimeline.h"
+#    undef mozilla_StartupTimeline_Event
+    MAX_EVENT_ID
+  };
+
+  static TimeStamp Get(Event ev) { return sStartupTimeline[ev]; }
+
+  static const char* Describe(Event ev) { return sStartupTimelineDesc[ev]; }
+
+#    ifdef MOZILLA_INTERNAL_API
+  static void Record(Event ev) {
+    PROFILER_MARKER_UNTYPED(
+        ProfilerString8View::WrapNullTerminatedString(Describe(ev)), OTHER);
+    Record(ev, TimeStamp::Now());
+  }
+
+  static void Record(Event ev, TimeStamp when) { sStartupTimeline[ev] = when; }
+
+  static void RecordOnce(Event ev, const TimeStamp& aWhen);
+  static void RecordOnce(Event ev);
+#    endif
+
+  static bool HasRecord(Event ev) { return !sStartupTimeline[ev].IsNull(); }
+
+ private:
+  static TimeStamp sStartupTimeline[MAX_EVENT_ID];
+  static const char* sStartupTimelineDesc[MAX_EVENT_ID];
+};
+
+}  // namespace mozilla
+
+#  endif /* mozilla_StartupTimeline */
+
+#endif /* mozilla_StartupTimeline_Event */