activateOnCurrentIsolate<TFromCaller> method
void
activateOnCurrentIsolate<TFromCaller>(
- void messageHandler(
- TFromCaller message
- void cancel(
- CancelMessage cancelMessage
Activates the current configuration on the current isolate.
In the entry-point of the isolate this method should be called to set up the SendPort and ReceivePort.
Implementation
void activateOnCurrentIsolate<TFromCaller>(
void Function(TFromCaller message) messageHandler,
void Function(CancelMessage cancelMessage) cancel,
) {
final fromCaller = ReceivePort();
final toIsolate = fromCaller.sendPort;
late final StreamSubscription subscription;
subscription = fromCaller.listen((message) {
if (message is CancelMessage) {
subscription.cancel();
cancel(message);
} else if (message is TFromCaller) {
messageHandler(message);
}
});
toCaller.send(toIsolate);
}