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_
28