}
*/
import "C"

import (
	"fmt"
	"io/fs"
	"os"
	"os/exec"
	"os/signal"
	"sync"
	"syscall"
)

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

func CgoExecSignalMask() {
	if len(os.Args) > 2 && os.Args[2] == "testsigint" {
		if C.SIGINTBlocked() != 0 {
			os.Exit(1)
		}
		os.Exit(0)
	}

	c := make(chan os.Signal, 1)

	t.Parallel()
	// Test issue 13164.
	switch runtime.GOOS {
	case "windows", "plan9":
		t.Skipf("skipping signal mask test on %s", runtime.GOOS)
	}
	got := runTestProg(t, "testprogcgo", "CgoExecSignalMask", "GOTRACEBACK=system")
	want := "OK\n"
	if got != want {
		t.Errorf("expected %q, got %v", want, got)
	}
}

func TestEnsureDropM(t *testing.T) {
	t.Parallel()
	// Test for issue 13881.