gfwproxyshadowsocksdocker-imagegogolanggvisornatnetworksocks4socks5tcpip-stacktortun-devicetun2sockstunneludpwireguard
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25 lines
437 B
25 lines
437 B
package proxy
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import (
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"net"
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"time"
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)
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const (
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tcpKeepAlivePeriod = 30 * time.Second
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)
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// setKeepAlive sets tcp keepalive option for tcp connection.
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func setKeepAlive(c net.Conn) {
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if tcp, ok := c.(*net.TCPConn); ok {
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tcp.SetKeepAlive(true)
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tcp.SetKeepAlivePeriod(tcpKeepAlivePeriod)
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}
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}
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// safeConnClose closes tcp connection safely.
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func safeConnClose(c net.Conn, err error) {
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if c != nil && err != nil {
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c.Close()
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}
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}
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