utils

func CopyBuffer ¶

func CopyBuffer(dst io.Writer, src io.Reader, buf []byte) (written int64, err error)

CopyBuffer is the actual implementation of Copy and CopyBuffer. if buf is nil, one is allocated. Note that this is a copy function of io from the built-in, the only changes is let preset buffer size respect the transport settings.

func ExtractDomain ¶

func ExtractDomain(s string) string

func ForceClose ¶

func ForceClose(closer io.Closer)

ForceClose forces close the closer

func ForceCloseAll ¶

func ForceCloseAll(closers ...io.Closer)

ForceCloseAll force close all closers

func LoadProxy ¶

func LoadProxy(p string) (proxy.Dialer, error)

func PathExist ¶

func PathExist(path string) bool

func PrintErrorIfCritical ¶

func PrintErrorIfCritical(err error, msg string)

PrintErrorIfCritical prints only error that critical

func SplitHostPort ¶

func SplitHostPort(s string) (string, uint16, error)

SplitHostPort uses net.SplitHostPort but converts port to uint16 format