History

Andrea Maria Piana 4d15ae8a85 Upgrade to go 1.18		2022-05-11 12:39:54 +01:00
..
LICENSE	Add rendezvous implementation for discovery interface	2018-07-25 15:10:57 +03:00
README.md	go-waku integration (#2247 )	2021-06-16 16:19:45 -04:00
addr.go	Add rendezvous implementation for discovery interface	2018-07-25 15:10:57 +03:00
codecov.yml	migrate to go 1.12 and go modules	2019-06-12 13:12:00 +02:00
control_plan9.go	go-waku integration (#2247 )	2021-06-16 16:19:45 -04:00
control_unix.go	chore: bump go-waku	2022-04-06 10:36:06 -04:00
control_wasm.go	chore: bump go-waku	2022-04-06 10:36:06 -04:00
control_windows.go	migrate to go 1.12 and go modules	2019-06-12 13:12:00 +02:00
interface.go	chore: bump go-waku	2022-04-06 10:36:06 -04:00

README.md

go-reuseport

NOTE: This package REQUIRES go >= 1.11.

This package enables listening and dialing from the same TCP or UDP port. This means that the following sockopts may be set:

SO_REUSEADDR
SO_REUSEPORT

godoc: https://godoc.org/github.com/libp2p/go-reuseport

This is a simple package to help with address reuse. This is particularly important when attempting to do TCP NAT holepunching, which requires a process to both Listen and Dial on the same TCP port. This package provides some utilities around enabling this behaviour on various OS.

Examples

// 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.

Tested

Tested on darwin, linux, and windows.

The last gx published version of this module was: 0.2.2: Qme8kdM7thoCqLqd7GYCRqipoZJS64rhJo5MBcTpyWfsL9