func (self *comm) await_cmd_ack(cmd link.Command) (bool, link.Arguments) {
msg := self.recv()
proc := func(ack bool) (bool, link.Arguments) {
acked := link.MakeCommand(msg.Args[0])
if acked == cmd {
if ack == true {
return ack, msg.Args
} else {
return ack, nil
}
} else {
var s string
if ack {
s = fmt.Sprintf("Acked incorrect cmd (expected %s) %s", cmd, msg)
} else {
s = fmt.Sprintf("Ncked incorrect cmd (expected %s) %s", cmd, msg)
}
panic(s)
}
panic("unreachable")
}
if msg.Cmd == link.Commands["Ack"] && len(msg.Args) >= 1 {
return proc(true)
} else if msg.Cmd == link.Commands["Nak"] && len(msg.Args) == 1 {
return proc(false)
}
s := fmt.Sprintf("Unexpected Message %s", msg)
panic(s)
}
func (self *AgentProxy) await_cmd_ack(cmd link.Command) bool {
if ok, msg := self.recv(); ok {
if msg.Cmd == link.Commands["Ack"] && len(msg.Args) == 1 {
if acked := link.MakeCommand(msg.Args[0]); acked == cmd {
return true
}
}
}
return false
}