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)

	SYS_SCHED_SETPARAM           = 327 // { int sched_setparam (pid_t pid, const struct sched_param *param); }
	SYS_SCHED_GETPARAM           = 328 // { int sched_getparam (pid_t pid, struct sched_param *param); }
	SYS_SCHED_SETSCHEDULER       = 329 // { int sched_setscheduler (pid_t pid, int policy, const struct sched_param *param); }
	SYS_SCHED_GETSCHEDULER       = 330 // { int sched_getscheduler (pid_t pid); }

	var output bytes.Buffer
	cmd.Stdout = &output // for test logging
	cmd.Stderr = &output

	if err := cmd.Start(); err != nil {
		t.Fatalf("error starting test binary: %v", err)
	}
	w.Close()

	pid := cmd.Process.Pid

	// Wait for child to be ready.
	var buf [1]byte
	if _, err := r.Read(buf[:]); err != io.EOF {
		t.Fatalf("control pipe read get err %v want io.EOF", err)
	}

	// 💥

        def canceledDaemon2 = daemons.daemons.find { it.context.pid != canceledDaemon1.context.pid }

        // 1 daemon we can reuse
        def build3 = executer.withTasks("help").start()

        when:
        build3.waitForFinish()

        then:
        daemons.daemons.size() == 3
        def idleDaemon = daemons.daemons.find { ! (it.context.pid in [ canceledDaemon1.context.pid, canceledDaemon2.context.pid ]) }

	SYS__SCHED_SETPARAM      = 346 // { int|sys||_sched_setparam(pid_t pid, lwpid_t lid, int policy, const struct sched_param *params); }
	SYS__SCHED_GETPARAM      = 347 // { int|sys||_sched_getparam(pid_t pid, lwpid_t lid, int *policy, struct sched_param *params); }
	SYS__SCHED_SETAFFINITY   = 348 // { int|sys||_sched_setaffinity(pid_t pid, lwpid_t lid, size_t size, const cpuset_t *cpuset); }

        stdout.reset()
        stderr.reset()
        return executionOutput
    }

    def requestJstackForBuildProcess() {
        def pidFile = file("build/build.pid")
        if (pidFile.exists()) {
            def pid = pidFile.text
            def jdkBinDir = new File(System.getProperty("java.home"), "../bin").canonicalFile
            if (jdkBinDir.isDirectory() && new File(jdkBinDir, "jstack").exists()) {

     */
    boolean maybeSetProcessDir(File processDir);

    /**
     * Returns the OS level PID for the current process.
     *
     * @throws NativeIntegrationException If the pid is not available.
     */
    Long getPid() throws NativeIntegrationException;

    /**
     * Returns the OS level PID for the current process, or null if not available.
     */
    Long maybeGetPid();

    /**

	SYS__SCHED_SETPARAM      = 346 // { int|sys||_sched_setparam(pid_t pid, lwpid_t lid, int policy, const struct sched_param *params); }
	SYS__SCHED_GETPARAM      = 347 // { int|sys||_sched_getparam(pid_t pid, lwpid_t lid, int *policy, struct sched_param *params); }
	SYS__SCHED_SETAFFINITY   = 348 // { int|sys||_sched_setaffinity(pid_t pid, lwpid_t lid, size_t size, const cpuset_t *cpuset); }

	SYS_SCHED_SETPARAM           = 327 // { int sched_setparam (pid_t pid, const struct sched_param *param); }
	SYS_SCHED_GETPARAM           = 328 // { int sched_getparam (pid_t pid, struct sched_param *param); }
	SYS_SCHED_SETSCHEDULER       = 329 // { int sched_setscheduler (pid_t pid, int policy, const struct sched_param *param); }
	SYS_SCHED_GETSCHEDULER       = 330 // { int sched_getscheduler (pid_t pid); }

	SYS_SCHED_SETPARAM           = 327 // { int sched_setparam (pid_t pid, const struct sched_param *param); }
	SYS_SCHED_GETPARAM           = 328 // { int sched_getparam (pid_t pid, struct sched_param *param); }
	SYS_SCHED_SETSCHEDULER       = 329 // { int sched_setscheduler (pid_t pid, int policy, const struct sched_param *param); }
	SYS_SCHED_GETSCHEDULER       = 330 // { int sched_getscheduler (pid_t pid); }