Implement processing rate limits

example/daemons/number_printer.go

@@ -20,6 +20,7 @@ func (n *NumberPrinter) Startup() {
 	})
 
 	n.SystemProcess("Random Number Generator", n.generateNumbers)
+	n.LimitRate(1, 2*time.Second)
 }
 
 // Shutdown is empty due to the lack of cleanup.
@@ -33,9 +34,6 @@ func (n *NumberPrinter) generateNumbers() {
 		// Generate a random number between 1000 and 9999 and print it
 		num := 1000 + rand.Intn(9000)
 		n.Process(n.makeActor(num))
-
-		// Sleep for a second or less
-		time.Sleep(time.Duration(rand.Intn(1000)) * time.Millisecond)
 	}
 }
 

example/daemons/price_consumer.go

@@ -22,6 +22,7 @@ func (p *PriceConsumer) Startup() {
 	b.Subscribe("ProductPriceUpdates", func(u PriceUpdate) {
 		log.Printf("Price for %q is now $%.2f", u.Product, u.Amount)
 	})
+	p.LimitRate(1, 500*time.Millisecond)
 }
 
 // Shutdown is empty because PriceConsumer requires no cleanup upon exiting.