widget/WidgetTraceEvent.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef WIDGET_PUBLIC_WIDGETTRACEEVENT_H_
   6 #define WIDGET_PUBLIC_WIDGETTRACEEVENT_H_
   7
   8 namespace mozilla {
   9
  10 // Perform any required initialization in the widget backend for
  11 // event tracing. Return true if initialization was successful.
  12 bool InitWidgetTracing();
  13
  14 // Perform any required cleanup in the widget backend for event tracing.
  15 void CleanUpWidgetTracing();
  16
  17 // Fire a tracer event at the UI-thread event loop, and block until
  18 // the event is processed. This should only be called by
  19 // a thread that's not the UI thread.
  20 bool FireAndWaitForTracerEvent();
  21
  22 // Signal that the event has been received by the event loop.
  23 void SignalTracerThread();
  24
  25 }  // namespace mozilla
  26
  27 #endif  // WIDGET_PUBLIC_WIDGETTRACEEVENT_H_