/
server.go
59 lines (50 loc) · 1.4 KB
/
server.go
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package echoserver
import (
"fmt"
"io"
"net"
)
// Server is an echo implementation of the
// caddy.Server interface type
type Server struct {
TCPPort string
listener net.Listener
}
// NewServer returns a new echo server
func NewServer(p string) (*Server, error) {
return &Server{
TCPPort: p,
}, nil
}
// Listen starts listening by creating a new listener
// and returning it. It does not start accepting
// connections.
func (s *Server) Listen() (net.Listener, error) {
return net.Listen("tcp", fmt.Sprintf(":%s", s.TCPPort))
}
// Serve starts serving using the provided listener.
// Serve blocks indefinitely, or in other
// words, until the server is stopped.
func (s *Server) Serve(ln net.Listener) error {
for {
conn, err := ln.Accept()
if err != nil {
return err
}
go func(c net.Conn) {
// Echo all incoming data.
io.Copy(c, c)
// Shut down the connection.
c.Close()
}(conn)
}
}
// ListenPacket is a no-op to satisfy caddy.Server interface
func (s *Server) ListenPacket() (net.PacketConn, error) { return nil, nil }
// ServePacket is a no-op to satisfy caddy.Server interface
func (s *Server) ServePacket(net.PacketConn) error { return nil }
// OnStartupComplete lists the sites served by this server
// and any relevant information
func (s *Server) OnStartupComplete() {
fmt.Println("OnStartupComplete:", s.TCPPort)
}