tile38/vendor/github.com/tidwall/evio/examples/echo-server/main.go

60 lines
1.3 KiB
Go

// Copyright 2017 Joshua J Baker. All rights reserved.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"log"
"strings"
"github.com/tidwall/evio"
)
func main() {
var port int
var loops int
var udp bool
var trace bool
var reuseport bool
var stdlib bool
flag.IntVar(&port, "port", 5000, "server port")
flag.BoolVar(&udp, "udp", false, "listen on udp")
flag.BoolVar(&reuseport, "reuseport", false, "reuseport (SO_REUSEPORT)")
flag.BoolVar(&trace, "trace", false, "print packets to console")
flag.IntVar(&loops, "loops", 0, "num loops")
flag.BoolVar(&stdlib, "stdlib", false, "use stdlib")
flag.Parse()
var events evio.Events
events.NumLoops = loops
events.Serving = func(srv evio.Server) (action evio.Action) {
log.Printf("echo server started on port %d (loops: %d)", port, srv.NumLoops)
if reuseport {
log.Printf("reuseport")
}
if stdlib {
log.Printf("stdlib")
}
return
}
events.Data = func(c evio.Conn, in []byte) (out []byte, action evio.Action) {
if trace {
log.Printf("%s", strings.TrimSpace(string(in)))
}
out = in
return
}
scheme := "tcp"
if udp {
scheme = "udp"
}
if stdlib {
scheme += "-net"
}
log.Fatal(evio.Serve(events, fmt.Sprintf("%s://:%d?reuseport=%t", scheme, port, reuseport)))
}