loopback

Documentation

Overview

Package loopback defines a net.PacketConn implementation where sent messages are echoed back on the same connection.

Index

• Constants
• type Addr
  • func (a *Addr) Network() string
  • func (a *Addr) String() string
• type Conn
  • func New() *Conn
  • func (c *Conn) Close() error
  • func (c *Conn) LocalAddr() net.Addr
  • func (c *Conn) ReadFrom(b []byte) (int, net.Addr, error)
  • func (c *Conn) SetDeadline(t time.Time) error
  • func (c *Conn) SetReadDeadline(t time.Time) error
  • func (c *Conn) SetWriteDeadline(t time.Time) error
  • func (c *Conn) WriteTo(b []byte, a net.Addr) (int, error)

Constants

const (
	// Number of packets that can fit into Conn buffers until the writer blocks
	PktBufferSize = 16
)

Types

type Addr

type Addr struct{}

Addr implements net.Addr. It always returns the same constant strings.

func (*Addr) Network

func (a *Addr) Network() string

Network always returns "loopback".

func (*Addr) String

func (a *Addr) String() string

String always returns "loopback address".

type Conn

type Conn struct {
	// contains filtered or unexported fields
}

Connects a client-server app to itself to simplify testing.

func New

func New() *Conn

New creates a new loopback connection with capacity PktBufferSize.

func (*Conn) Close

func (c *Conn) Close() error

func (*Conn) LocalAddr

func (c *Conn) LocalAddr() net.Addr

LocalAddr always returns nil.

func (*Conn) ReadFrom

func (c *Conn) ReadFrom(b []byte) (int, net.Addr, error)

func (*Conn) SetDeadline

func (c *Conn) SetDeadline(t time.Time) error

SetDeadline is a NOP.

func (*Conn) SetReadDeadline

func (c *Conn) SetReadDeadline(t time.Time) error

SetReadDeadline is a NOP.

func (*Conn) SetWriteDeadline

func (c *Conn) SetWriteDeadline(t time.Time) error

SetWriteDeadline is a NOP.

func (*Conn) WriteTo

func (c *Conn) WriteTo(b []byte, a net.Addr) (int, error)