backlog

Documentation

Index

• func Set(l net.Listener, backlog int) error

Functions

func Set

func Set(l net.Listener, backlog int) error

backlog.Set() will attempt to reset the TCP connection backlog queue to the given value. Works on MacOS and Linux. On linux seems to allow n+1 connections to be queued (one in userland 1 in kernel maybe? despite no accept). To test

• run the server go run sampleServer.go -b 3
• run the client with -n 5 only first 3 (or 4) will connect go run sampleClient.go -n 5

On linux `ss -ltn6` will show the backlog as SendQ column.

PS: none of this meant to work according to POSIX, it just happens to seem to do so pending https://github.com/golang/go/issues/39000