// gui runs f in the main GUI thread and waits for f to return.
func gui(f func()) {
if tref.Ref() == guiLoopRef {
// Already within the GUI thread. Attempting to wait would deadlock.
f()
return
}
// Tell Qt we're waiting for the idle hook to be called.
if atomic.AddInt32((*int32)(unsafe.Pointer(&hookWaiting)), 1) == 1 {
C.idleTimerStart()
}
// Send f to be executed by the idle hook in the main GUI thread.
guiFunc <- f
// Wait until f is done executing.
<-guiDone
}
// RunMain runs f in the main QML thread and waits for f to return.
//
// This is meant to be used by extensions that integrate directly with the
// underlying QML logic.
func RunMain(f func()) {
ref := cdata.Ref()
if ref == guiMainRef || ref == atomic.LoadUintptr(&guiPaintRef) {
// Already within the GUI or render threads. Attempting to wait would deadlock.
f()
return
}
// Tell Qt we're waiting for the idle hook to be called.
if atomic.AddInt32(&guiIdleRun, 1) == 1 {
C.idleTimerStart()
}
// Send f to be executed by the idle hook in the main GUI thread.
guiFunc <- f
// Wait until f is done executing.
<-guiDone
}