Asynchronous drivers

Most of the Actor actions are driven as reaction to an input received from the client. However, Actors can update their own state at regular intervals through timers and reminders. Actors can also post updates to the clients on the progress of operations using events. Let's take a brief look at each of these attributes.

Timers

Reliable Actor timers are modelled on timers available in the system.Timers namespace. The timers are usually used to carry out routine operations in the lifetime of an Actor, for example processing input data at a certain rate. You can declare and register a timer in your application using the following code, usually in the OnActivateAsync method:

private IActorTimer _updateTimer; 
protected override Task OnActivateAsync() 
    { 
        ... 

         _updateTimer = RegisterTimer( 
            CallBackMethod,                     // Callback method 
            ObjectParameter,                   // Parameter to pass to 
                        ...