Quelle  StartupTimeline.h

/* 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 */