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set linger to 0 for both inbound and outbound connections #36
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ghost
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Stebalien
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Apr 4, 2019
We should do this from go-tcp-transport (libp2p/go-tcp-transport#36), not here, as setting linger to 0 will cause us to send RST packets instead of nicely closing connections. Also, document why we need the fallback dialer.
vyzo
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Apr 4, 2019
| func tryLinger(conn net.Conn, sec int) { | ||
| if lingerConn, ok := conn.(interface { | ||
| SetLinger(int) error | ||
| }); ok { |
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this is a handful, maybe worth naming the linger interface.
This causes us to send RST packets instead of FIN packets when closing connections and means connections immediately enter the "reset" state instead of entering the TIME-WAIT state. Importantly, this means we can immediately reuse the 5-tuple and reconnect.
vyzo
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Apr 4, 2019
anacrolix
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Apr 4, 2019
marten-seemann
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Apr 26, 2022
We should do this from go-tcp-transport (libp2p/go-tcp-transport#36), not here, as setting linger to 0 will cause us to send RST packets instead of nicely closing connections. Also, document why we need the fallback dialer.
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This causes us to send RST packets instead of FIN packets when closing connections and means connections immediately enter the "reset" state instead of entering the TIME-WAIT state.
Importantly, this means we can immediately reuse the 5-tuple and reconnect.
(blocked on a go-reuseport-transport release: libp2p/go-reuseport-transport#14)