emitEvent
Emits the #GFileMonitor::changed signal if a change has taken place. Should be called from file monitor implementations only.
Implementations are responsible to call this method from the g-main-context-push-thread-default of the thread that the monitor was created in.
Parameters
child
a #GFile.
otherFile
a #GFile.
eventType
a set of #GFileMonitorEvent flags.