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693 B

//go:build !windows
// +build !windows
package localchat
import (
"encoding/json"
"fmt"
"log"
"net"
)
func StartServiceDiscovery() {
conn, err := net.ListenPacket("udp", broadcastAddr)
if err != nil {
fmt.Println(err)
return
}
defer conn.Close()
buffer := make([]byte, 1024)
for {
n, addr, err := conn.ReadFrom(buffer)
if err != nil {
fmt.Println(err)
continue
}
fmt.Printf("Received message: %s from %s\n", buffer[:n], addr)
var udpMsg UdpMessage
err = json.Unmarshal(buffer[:n], &udpMsg)
if err != nil {
fmt.Printf("Error unmarshalling JSON: %v\n", err)
continue
}
log.Printf("Get message: %+v", udpMsg)
OnlineUsers[udpMsg.IP] = udpMsg
}
}