英文:
Golang, net.TCPConn, SetReadTimeout?
问题
我在Mac上创建了一个简单的Go应用程序，用于在TCP连接上读写数据。我使用了GAE Go版本。后来，我将该程序移植到Windows上，然后出现了这个错误：
Connection.SetReadTimeout undefined (type *net.TCPConn has no field or method SetReadTimeout)
我猜测Golang网站上的net包信息只描述了GAE版本的包。在非GAE Go版本中，我应该如何正确设置超时时间？
英文:
I've created a simple Go application on a Mac for writing and reading data to and from a TCP connection. I've used the GAE Go version. Later, I ported that program to Windows, and I got this error :
Connection.SetReadTimeout undefined (type *net.TCPConn has no field or method SetReadTimeout)
I guess the net package information on the Golang website describes the package only for the GAE version. How would I properly set the timeout in a non-GAE Go version?
答案1
得分: 1
使用最新的每周版本（也称为Go 1 RC2），需要使用net.Conn类型的各种Set*Deadline方法。请注意，旧的超时是相对于某个事件的，而截止时间是绝对时间。这个更改的背景大致是：在某些情况下，设置一个相对超时时间为1秒似乎是一个好主意，但它适用于每个事件，比如接收一个字节，因此允许精心设计的传输永远避免超时（附近的DOS攻击）。
英文:
With latest weekly (aka Go 1 RC2) one has to use the various Set*Deadline methods of the net.Conn type. Note that the old timeouts were relative to some event, deadlines are absolute times. The background for this change is roughly: setting a [relative] timeout of 1 s seems like a good idea in some scenario, but it applied to every event, like receiving a single byte, thus allowing crafted transfers to avoid timeouts forever (with the respective DOS nearby).
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