mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
package transport
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import (
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"syscall"
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)
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type Controls []func(network, addr string, conn syscall.RawConn) error
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func (ctls Controls) Control(network, addr string, conn syscall.RawConn) error {
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for _, s := range ctls {
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if err := s(network, addr, conn); err != nil {
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return err
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}
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}
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return nil
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}
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type SocketOpts struct {
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// ReusePort enables socket option SO_REUSEPORT [1] which allows rebind of
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// a port already in use. User should keep in mind that flock can fail
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// in which case lock on data file could result in unexpected
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// condition. User should take caution to protect against lock race.
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// [1] https://man7.org/linux/man-pages/man7/socket.7.html
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ReusePort bool
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// ReuseAddress enables a socket option SO_REUSEADDR which allows
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// binding to an address in `TIME_WAIT` state. Useful to improve MTTR
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// in cases where etcd slow to restart due to excessive `TIME_WAIT`.
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// [1] https://man7.org/linux/man-pages/man7/socket.7.html
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ReuseAddress bool
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}
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func getControls(sopts *SocketOpts) Controls {
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ctls := Controls{}
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if sopts.ReuseAddress {
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ctls = append(ctls, setReuseAddress)
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}
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if sopts.ReusePort {
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ctls = append(ctls, setReusePort)
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}
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return ctls
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}
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func (sopts *SocketOpts) Empty() bool {
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return sopts.ReuseAddress == false && sopts.ReusePort == false
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}
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