如何在Golang网络包中关闭TCP连接? [英] How to know TCP connection is closed in Golang net package?
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问题描述
我正在实施一个小型TCP服务器,并且如何知道我的某个客户是否已关闭?我应该只是尝试读取或写入并检查err是否为零?
该线程可靠检测TCP的最佳方式连接已关闭,使用 net.Conn
作为' c
'(也见于 utils / ping.go
或 locale-backend / server.go
或许多其他实例):
one:= [] byte {}
c.SetReadDeadline(time.Now())
if _,err := c.Read(one); err == io.EOF {
l.Printf(logger.LevelDebug,%s detected closed LAN connection,id)
c.Close()
c = nil
} else {
var 0 time.Time
c.SetReadDeadline(time.Now().Add(10 * time.Millisecond))
}
为了检测超时,它建议:
如果neterr,ok:= err。(net.Error);好的&& neterr.Timeout(){
...
I'm new to Golang.
I'm implementing a small TCP server, and how do I know if one of my clients closed? Should I just try to read or write and check if err is nil?
解决方案That thread "Best way to reliably detect that a TCP connection is closed", using
net.Conn
for 'c
' (also seen inutils/ping.go
orlocale-backend/server.go
or many other instances):one := []byte{} c.SetReadDeadline(time.Now()) if _, err := c.Read(one); err == io.EOF { l.Printf(logger.LevelDebug, "%s detected closed LAN connection", id) c.Close() c = nil } else { var zero time.Time c.SetReadDeadline(time.Now().Add(10 * time.Millisecond)) }
For detecting a timeout, it suggests:
if neterr, ok := err.(net.Error); ok && neterr.Timeout() { ...
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