statemachine

go/statemachine.go

@@ -0,0 +1,33 @@
+package main
+
+// Ways To Do Things - Peter Bourgon - Release Party #GoSF
+// from https://www.youtube.com/watch?v=LHe1Cb_Ud_M&t=259s
+
+type fooReq struct{}
+type barReq struct{}
+
+type stateMachine struct {
+    state string
+    fooc chan fooReq
+    barc chan barReq
+    quitc chan struct{}
+}
+
+func (sm *stateMachine) foo() int {
+    c := make(chan int)
+    sm.fooc <- fooReq{c}
+    return <-c
+}
+
+func (sm *stateMachine) loop() {
+    for {
+	select {
+	case r := <-sm.fooc:
+	    sm.handleFoo(r)
+	case r := <-sm.barc:
+	    sm.handleBar(r)
+	case: <-sm.quitc:
+	    return
+	}
+    }
+}