src/runtime/testdata/testgoroutineleakprofile/goker/moby7559.go

// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a MIT
// license that can be found in the LICENSE file.

/*
 * Project: moby
 * Issue or PR  : https://github.com/moby/moby/pull/7559
 * Buggy version: 64579f51fcb439c36377c0068ccc9a007b368b5a
 * fix commit-id: 6cbb8e070d6c3a66bf48fbe5cbf689557eee23db
 * Flaky: 100/100
 */
package main

import (
	"net"
	"os"
	"runtime/pprof"
	"sync"
	"time"
)

func init() {
	register("Moby7559", Moby7559)
}

type UDPProxy_moby7559 struct {
	connTrackLock sync.Mutex
}

func (proxy *UDPProxy_moby7559) Run() {
	for i := 0; i < 2; i++ {
		proxy.connTrackLock.Lock()
		_, err := net.DialUDP("udp", nil, nil)
		if err != nil {
			continue
			/// Missing unlock here
		}
		if i == 0 {
			break
		}
	}
	proxy.connTrackLock.Unlock()
}

func Moby7559() {
	prof := pprof.Lookup("goroutineleak")
	defer func() {
		time.Sleep(100 * time.Millisecond)
		prof.WriteTo(os.Stdout, 2)
	}()

	for i := 0; i < 20; i++ {
		go (&UDPProxy_moby7559{}).Run()
	}
}