package tcplisten

import "github.com/valyala/fasthttp/tcplisten"

Package tcplisten provides customizable TCP net.Listener with various performance-related options:

• SO_REUSEPORT. This option allows linear scaling server performance on multi-CPU servers. See https://www.nginx.com/blog/socket-sharding-nginx-release-1-9-1/ for details.

• TCP_DEFER_ACCEPT. This option expects the server reads from the accepted connection before writing to them.

• TCP_FASTOPEN. See https://lwn.net/Articles/508865/ for details.

The package is derived from https://github.com/valyala/tcplisten

Index ¶

• type Config
• func (cfg *Config) NewListener(network, addr string) (net.Listener, error)

Types ¶

type Config ¶

type Config struct {
	// ReusePort enables SO_REUSEPORT.
	ReusePort bool

	// DeferAccept enables TCP_DEFER_ACCEPT.
	DeferAccept bool

	// FastOpen enables TCP_FASTOPEN.
	FastOpen bool

	// Backlog is the maximum number of pending TCP connections the listener
	// may queue before passing them to Accept.
	// See man 2 listen for details.
	//
	// By default system-level backlog value is used.
	Backlog int
}

Config provides options to enable on the returned listener.

func (*Config) NewListener ¶

func (cfg *Config) NewListener(network, addr string) (net.Listener, error)

NewListener returns TCP listener with options set in the Config.

The function may be called many times for creating distinct listeners with the given config.

Only tcp4 and tcp6 networks are supported.

Source Files ¶

socket.go socket_other.go tcplisten.go tcplisten_linux.go