grace

Documentation

Index

• Variables
• func CreateListener(proto string, addr string) (net.Listener, error)
• func CreateUDPConn(addr string) (*net.UDPConn, error)
• func GetAllListenFiles() map[string]*os.File
• func GraceHandler(userFunc, stopFunc handlerFunc)
• func SignalUSR2(pid int)

Variables

var (
	// InheritFdPrefix marks the fd inherited from parent process
	InheritFdPrefix = "LISTEN_FD_INHERIT"
)

Functions

func CreateListener

func CreateListener(proto string, addr string) (net.Listener, error)

CreateListener creates a listener from inherited fd if there is no inherited fd, create a now one.

func CreateUDPConn

func CreateUDPConn(addr string) (*net.UDPConn, error)

CreateUDPConn creates a udp connection from inherited fd if there is no inherited fd, create a now one.

func GetAllListenFiles

func GetAllListenFiles() map[string]*os.File

GetAllListenFiles returns all listen files

func GraceHandler

func GraceHandler(userFunc, stopFunc handlerFunc)

GraceHandler set the signal handler for grace restart

func SignalUSR2

func SignalUSR2(pid int)

SignalUSR2 send signal USR2 to pid