reuseport

package
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Published: Dec 19, 2023 License: MIT Imports: 6 Imported by: 0

Documentation

Overview

Package reuseport provides Listen and Dial functions that set socket options in order to be able to reuse ports. You should only use this package if you know what SO_REUSEADDR and SO_REUSEPORT are.

For example:

// listen on the same port. oh yeah.
l1, _ := reuse.Listen("tcp", "127.0.0.1:1234")
l2, _ := reuse.Listen("tcp", "127.0.0.1:1234")

// dial from the same port. oh yeah.
l1, _ := reuse.Listen("tcp", "127.0.0.1:1234")
l2, _ := reuse.Listen("tcp", "127.0.0.1:1235")
c, _ := reuse.Dial("tcp", "127.0.0.1:1234", "127.0.0.1:1235")

Note: cant dial self because tcp/ip stacks use 4-tuples to identify connections, and doing so would clash.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Available

func Available() bool

Available returns whether or not SO_REUSEPORT or equivalent behaviour is available in the OS.

func Control

func Control(network, address string, c syscall.RawConn) (err error)

func Dial

func Dial(network, laddr, raddr string) (net.Conn, error)

Dial dials the given network and address. see net.Dial Returns a net.Conn created from a file descriptor for a socket with SO_REUSEPORT and SO_REUSEADDR option set.

func DialTimeout

func DialTimeout(network, laddr, raddr string, timeout time.Duration) (net.Conn, error)

Dial dials the given network and address, with the given timeout. see net.DialTimeout Returns a net.Conn created from a file descriptor for a socket with SO_REUSEPORT and SO_REUSEADDR option set.

func Listen

func Listen(network, address string) (net.Listener, error)

Listen listens at the given network and address. see net.Listen Returns a net.Listener created from a file discriptor for a socket with SO_REUSEPORT and SO_REUSEADDR option set.

func ListenPacket

func ListenPacket(network, address string) (net.PacketConn, error)

ListenPacket listens at the given network and address. see net.ListenPacket Returns a net.Listener created from a file discriptor for a socket with SO_REUSEPORT and SO_REUSEADDR option set.

func ResolveAddr

func ResolveAddr(network, address string) (net.Addr, error)

Types

This section is empty.

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