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server.go
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server.go
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package main
import (
"bufio"
"fmt"
"net"
"os"
"time"
)
func main() {
message("Launching server...")
ln, err := net.Listen("tcp", ":4956")
exitOnError(err)
for {
message("Wait for connection...")
conn, err := ln.Accept()
exitOnError(err)
go handleConnection(conn)
}
message("Done")
}
func handleConnection(conn net.Conn) {
message("")
message("Handle connection...")
str, err := bufio.NewReader(conn).ReadString('\n')
exitOnError(err)
if len(str) > 0 {
t := time.Now()
conn.Write([]byte(t.Format(time.RFC3339Nano) + "\n"))
received, err := time.Parse(time.RFC3339Nano, str[:len(str)-1])
exitOnError(err)
message("Received:", received)
message("Sent: ", t)
}
conn.Close()
}
func message(a ...interface{}) (n int, err error) {
return fmt.Print("[S] ", fmt.Sprintln(a...))
}
func exitOnError(err error) {
if err != nil {
message("ERR:", err)
os.Exit(1)
}
}