}

func waitSig(t *testing.T, c <-chan os.Signal, sig os.Signal) {
	t.Helper()
	waitSig1(t, c, sig, false)
}
func waitSigAll(t *testing.T, c <-chan os.Signal, sig os.Signal) {
	t.Helper()
	waitSig1(t, c, sig, true)
}

func waitSig1(t *testing.T, c <-chan os.Signal, sig os.Signal, all bool) {
	t.Helper()

	// Sleep multiple times to give the kernel more tries to
	// deliver the signal.
	start := time.Now()

	SIGKILL   = syscall.Signal(0x9)
	SIGPIPE   = syscall.Signal(0xd)
	SIGPROF   = syscall.Signal(0x1b)
	SIGQUIT   = syscall.Signal(0x3)
	SIGSEGV   = syscall.Signal(0xb)
	SIGSTOP   = syscall.Signal(0x11)
	SIGSYS    = syscall.Signal(0xc)
	SIGTERM   = syscall.Signal(0xf)
	SIGTHR    = syscall.Signal(0x20)
	SIGTRAP   = syscall.Signal(0x5)
	SIGTSTP   = syscall.Signal(0x12)
	SIGTTIN   = syscall.Signal(0x15)

	SIGKILL   = syscall.Signal(0x9)
	SIGPIPE   = syscall.Signal(0xd)
	SIGPROF   = syscall.Signal(0x1b)
	SIGPWR    = syscall.Signal(0x20)
	SIGQUIT   = syscall.Signal(0x3)
	SIGSEGV   = syscall.Signal(0xb)
	SIGSTOP   = syscall.Signal(0x11)
	SIGSYS    = syscall.Signal(0xc)
	SIGTERM   = syscall.Signal(0xf)
	SIGTRAP   = syscall.Signal(0x5)
	SIGTSTP   = syscall.Signal(0x12)
	SIGTTIN   = syscall.Signal(0x15)

	SIGPOLL   = Signal(0x16)
	SIGPROF   = Signal(0x1d)
	SIGPWR    = Signal(0x13)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTOP   = Signal(0x17)
	SIGSYS    = Signal(0xc)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x18)
	SIGTTIN   = Signal(0x1a)
	SIGTTOU   = Signal(0x1b)
	SIGURG    = Signal(0x15)
	SIGUSR1   = Signal(0x10)
	SIGUSR2   = Signal(0x11)

	SIGPOLL   = Signal(0x16)
	SIGPROF   = Signal(0x1d)
	SIGPWR    = Signal(0x13)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTOP   = Signal(0x17)
	SIGSYS    = Signal(0xc)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x18)
	SIGTTIN   = Signal(0x1a)
	SIGTTOU   = Signal(0x1b)
	SIGURG    = Signal(0x15)
	SIGUSR1   = Signal(0x10)
	SIGUSR2   = Signal(0x11)

	SIGPOLL   = Signal(0x16)
	SIGPROF   = Signal(0x1d)
	SIGPWR    = Signal(0x13)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTOP   = Signal(0x17)
	SIGSYS    = Signal(0xc)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x18)
	SIGTTIN   = Signal(0x1a)
	SIGTTOU   = Signal(0x1b)
	SIGURG    = Signal(0x15)
	SIGUSR1   = Signal(0x10)
	SIGUSR2   = Signal(0x11)

	SIGPOLL   = Signal(0x16)
	SIGPROF   = Signal(0x1d)
	SIGPWR    = Signal(0x13)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTOP   = Signal(0x17)
	SIGSYS    = Signal(0xc)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x18)
	SIGTTIN   = Signal(0x1a)
	SIGTTOU   = Signal(0x1b)
	SIGURG    = Signal(0x15)
	SIGUSR1   = Signal(0x10)
	SIGUSR2   = Signal(0x11)

	}

	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)
	defer signal.Stop(c)

	p := &os.Process{Pid: os.Getpid()}
	if err := p.Signal(os.Interrupt); err != nil {
		t.Fatalf("Signal got err %v, want nil", err)
	}

	// Verify we actually received the signal.
	select {
	case <-time.After(1 * time.Second):
		t.Error("timeout waiting for signal")
	case <-c:
		// Good
	}
}

	SIGIOT    = syscall.Signal(0x6)
	SIGKILL   = syscall.Signal(0x9)
	SIGLIBRT  = syscall.Signal(0x21)
	SIGLWP    = syscall.Signal(0x20)
	SIGPIPE   = syscall.Signal(0xd)
	SIGPROF   = syscall.Signal(0x1b)
	SIGQUIT   = syscall.Signal(0x3)
	SIGSEGV   = syscall.Signal(0xb)
	SIGSTOP   = syscall.Signal(0x11)
	SIGSYS    = syscall.Signal(0xc)
	SIGTERM   = syscall.Signal(0xf)
	SIGTHR    = syscall.Signal(0x20)

	SIGIOT    = syscall.Signal(0x6)
	SIGKILL   = syscall.Signal(0x9)
	SIGLIBRT  = syscall.Signal(0x21)
	SIGLWP    = syscall.Signal(0x20)
	SIGPIPE   = syscall.Signal(0xd)
	SIGPROF   = syscall.Signal(0x1b)
	SIGQUIT   = syscall.Signal(0x3)
	SIGSEGV   = syscall.Signal(0xb)
	SIGSTOP   = syscall.Signal(0x11)
	SIGSYS    = syscall.Signal(0xc)
	SIGTERM   = syscall.Signal(0xf)
	SIGTHR    = syscall.Signal(0x20)