package main
import (
"fmt"
"net"
"os"
"time"
)
const rateLimit = 100 // Packets per second
const serverCount = 3 // Number of servers to load balance
func main() {
// Listen to incoming UDP packets
ln, err := net.ListenPacket("udp", ":8080")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer ln.Close()
// Create a buffer to hold incoming data
buf := make([]byte, 1024)
servers := []string{
"server1.example.com:8080",
"server2.example.com:8080",
"server3.example.com:8080",
}
for {
// Read incoming data
n, addr, err := ln.ReadFrom(buf)
if err != nil {
fmt.Println(err)
continue
}
// Load balance the incoming data to different servers
go func(n int, buf []byte, addr net.Addr) {
for i, server := range servers {
// Connect to the remote server
conn, err := net.Dial("udp", server)
if err != nil {
fmt.Println(err)
continue
}
defer conn.Close()
// Write the incoming data to the remote server with rate limit
for i := 0; i < n; i += rateLimit {
_, err = conn.Write(buf[i : i+rateLimit])
if err != nil {
fmt.Println(err)
return
}
time.Sleep(time.Second / rateLimit / serverCount)
}
}
}(n, buf, addr)
}
}