RPC是否具有超时机制？

Question

If RPC does not have a timeout mechanism, how do I "kill" an RPC call if it is trying to call an RPC method of a server that is closed?

Answer 1

You can use channels to implement a timeout pattern:

import "time"

c := make(chan error, 1)
go func() { c <- client.Call("Service", args, &result) } ()
select {
  case err := <-c:
    // use err and result
  case <-time.After(timeoutNanoseconds):
    // call timed out
}

The select will block until either client.Call returns or timeoutNanoseconds elapsed.