//                           _       _
// __      _____  __ ___   ___  __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
//  \ V  V /  __/ (_| |\ V /| | (_| | ||  __/
//   \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
//  Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
//  CONTACT: hello@weaviate.io
//

package utils

import "net"

func MustGetFreeTCPPort() (port int) {
	lAddr, err := net.ResolveTCPAddr("tcp", "localhost:0")
	if err != nil {
		panic(err)
	}
	l, err := net.ListenTCP("tcp", lAddr)
	if err != nil {
		panic(err)
	}
	defer l.Close()
	return l.Addr().(*net.TCPAddr).Port
}
