this.andx.setFlags(getFlags());
            this.andx.setFlags2(getFlags2());
            this.andx.setTid(getTid());
            this.andx.setPid(getPid());
            this.andx.setUid(getUid());
            this.andx.setMid(getMid());
            this.andx.setUseUnicode(this.isUseUnicode());

            if ( this.andx instanceof AndXServerMessageBlock ) {

	// we can't test that it does anything.
	// Instead we're testing that the conditions are good
	// for how it is used in init (must be on main thread).
	pid, tid = syscall.Getpid(), syscall.Gettid()
	LockOSThread()

	sysNanosleep = func(d time.Duration) {
		// Invoke a blocking syscall directly; calling time.Sleep()
		// would deschedule the goroutine instead.

var getwdCache struct {
	sync.Mutex
	dir string
}

// Getwd returns a rooted path name corresponding to the
// current directory. If the current directory can be
// reached via multiple paths (due to symbolic links),
// Getwd may return any one of them.
func Getwd() (dir string, err error) {
	if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
		return syscall.Getwd()
	}

	// Clumsy but widespread kludge:

        // Look for 'our' daemon among the busy daemons - a daemon will start in busy state so that nobody else will grab it.
        for (DaemonInfo daemonInfo : daemonRegistry.getNotIdle()) {
            if (daemonInfo.getUid().equals(daemon.getUid())) {
                try {
                    if (!constraint.isSatisfiedBy(daemonInfo.getContext())) {

func forkx(flags uintptr) (pid uintptr, err Errno)
func getpid() (pid uintptr, err Errno)
func ioctl(fd uintptr, req uintptr, arg uintptr) (err Errno)
func setgid(gid uintptr) (err Errno)
func setgroups1(ngid uintptr, gid uintptr) (err Errno)
func setrlimit1(which uintptr, lim unsafe.Pointer) (err Errno)
func setsid() (pid uintptr, err Errno)
func setuid(uid uintptr) (err Errno)
func setpgid(pid uintptr, pgid uintptr) (err Errno)

     */
    @Override
    public final long getMid () {
        return this.mid;
    }


    /**
     * @param mid
     *            the mid to set
     */
    @Override
    public final void setMid ( long mid ) {
        this.mid = (int) mid;
    }


    /**
     * @return the tid
     */
    public final int getTid () {
        return this.tid;
    }

		filter, expect string
	}{
		{call: "Setegid(1)", fn: func() error { return syscall.Setegid(1) }, filter: "Gid:", expect: "\t0\t1\t0\t1"},
		{call: "Setegid(0)", fn: func() error { return syscall.Setegid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

		{call: "Seteuid(1)", fn: func() error { return syscall.Seteuid(1) }, filter: "Uid:", expect: "\t0\t1\t0\t1"},

        failure.assertHasDescription(DaemonDisappearedException.MESSAGE)

        and:
        daemons.daemon.stops()
    }

    String getSid(Long pid) {
        return file("getSid/build/install/getSid/lib/getSid").exec(pid as String).out.trim()
    }

    String getConsole(Long pid) {
        return file("attachConsole/build/install/attachConsole/attachConsole.bat").exec(pid as String).out.trim()

	defer Stop(c)

	// Send this process a hangup
	t.Logf("hangup...")
	postNote(syscall.Getpid(), "hangup")
	waitSig(t, c, syscall.Note("hangup"))

	// Ask for everything we can get.
	c1 := make(chan os.Signal, 1)
	Notify(c1)

	// Send this process an alarm
	t.Logf("alarm...")
	postNote(syscall.Getpid(), "alarm")
	waitSig(t, c1, syscall.Note("alarm"))

	// Send two more hangups, to make sure that

// Test that setgid does not hang on Linux.
// See https://golang.org/issue/3871 for details.

package cgotest

/*
#include <sys/types.h>
#include <unistd.h>
*/
import "C"

import (
	"os"
	"os/signal"
	"syscall"
	"testing"
	"time"
)

func runTestSetgid() bool {
	c := make(chan bool)
	go func() {
		C.setgid(0)
		c <- true
	}()
	select {
	case <-c: