RPC是否有超时机制？ [英] Does RPC have a timeout mechanism?

问题描述

如果RPC没有超时机制，如果它试图调用关闭的服务器的RPC方法，我该如何杀死RPC调用？

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?

推荐答案

您可以使用渠道实施超时模式：

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
}

选择会阻塞，直到 client.Call 返回或 timeoutNanoseconds 已过。

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

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