//
// Signatures generated by this package are not deterministic, but entropy is
// mixed with the private key and the message, achieving the same level of
// security in case of randomness source failure.
//
// Operations involving private keys are implemented using constant-time
// algorithms, as long as an [elliptic.Curve] returned by [elliptic.P224],
// [elliptic.P256], [elliptic.P384], or [elliptic.P521] is used.

	{14, "SIGALRM", "alarm clock"},
	{15, "SIGTERM", "terminated"},
	{16, "SIGUSR1", "user defined signal 1"},
	{17, "SIGUSR2", "user defined signal 2"},
	{18, "SIGCHLD", "child exited"},
	{19, "SIGPWR", "power failure"},
	{20, "SIGWINCH", "window changed"},
	{21, "SIGURG", "urgent I/O condition"},
	{22, "SIGIO", "I/O possible"},
	{23, "SIGSTOP", "stopped (signal)"},
	{24, "SIGTSTP", "stopped"},
	{25, "SIGCONT", "continued"},

	if runtime.GOOS == "plan9" {
		t.Skipf("no pthreads on %s", runtime.GOOS)
	}
	got := runTestProg(t, "testprogcgo", "CgoExternalThreadPanic")
	want := "panic: BOOM"
	if !strings.Contains(got, want) {
		t.Fatalf("want failure containing %q. output:\n%s\n", want, got)
	}
}

func TestCgoExternalThreadSIGPROF(t *testing.T) {
	t.Parallel()
	// issue 9456.
	switch runtime.GOOS {
	case "plan9", "windows":

			if e.Err != tt.err {
				t.Errorf("SplitHostPort(%q) = _, _, %q; want %q", tt.hostPort, e.Err, tt.err)
			}
			if host != "" || port != "" {
				t.Errorf("SplitHostPort(%q) = %q, %q, err; want %q, %q, err on failure", tt.hostPort, host, port, "", "")
			}
		}
	}
}

func TestJoinHostPort(t *testing.T) {
	for _, tt := range []struct {
		host     string
		port     string
		hostPort string
	}{

	// stack shrinking) but before the goroutine has fully parked on a
	// channel. See issue 40641 for more details on the problem.
	//
	// The way we try to induce this failure is to set up two
	// goroutines: a sender and a receiver that communicate across
	// a channel. We try to set up a situation where the sender
	// grows its stack temporarily then *fully* blocks on a channel

	{25, "SIGXFSZ", "file size limit exceeded"},
	{26, "SIGVTALRM", "virtual timer expired"},
	{27, "SIGPROF", "profiling timer expired"},
	{28, "SIGWINCH", "window changed"},
	{29, "SIGLOST", "power failure"},
	{30, "SIGUSR1", "user defined signal 1"},
	{31, "SIGUSR2", "user defined signal 2"},

	{26, "SIGVTALRM", "virtual timer expired"},
	{27, "SIGPROF", "profiling timer expired"},
	{28, "SIGWINCH", "window changed"},
	{29, "SIGIO", "I/O possible"},
	{30, "SIGPWR", "power failure"},
	{31, "SIGSYS", "bad system call"},

		if out, err := testenv.Command(t, os.Args[0], "-test.run=^TestDetectNohup$", "-check_sighup_ignored").CombinedOutput(); err == nil {
			t.Errorf("ran test with -check_sighup_ignored and it succeeded: expected failure.\nOutput:\n%s", out)
		}
		Stop(c)

		// Again, this time with nohup, assuming we can find it.
		_, err := os.Stat("/usr/bin/nohup")
		if err != nil {

			check.errorf(x, Test, "internal error: value of %s should be a boolean constant", x)
			return
		}
		if !constant.BoolVal(x.val) {
			check.errorf(call, Test, "%v failed", call)
			// compile-time assertion failure - safe to continue
		}
		// result is constant - no need to record signature

	case _Trace:
		// trace(x, y, z, ...) dumps the positions, expressions, and

		mast := mustParse(main)
		conf := Config{Importer: importHelper{pkg: bpkg}}
		_, err := conf.Check(mast.PkgName.Value, []*syntax.File{mast}, nil)
		if err == nil {
			t.Error("Expected failure, but it did not")
		} else if got := err.Error(); !re.MatchString(got) {
			t.Errorf("Wanted match for\n\t%s\n but got\n\t%s", want, got)
		} else if testing.Verbose() {
			t.Logf("Saw expected\n\t%s", err.Error())
		}