return false
	}

}

func testSetgid(t *testing.T) {
	if !runTestSetgid() {
		t.Error("setgid hung")
	}

	// Now try it again after using signal.Notify.
	signal.Notify(make(chan os.Signal, 1), syscall.SIGINT)
	if !runTestSetgid() {
		t.Error("setgid hung after signal.Notify")
	}

extern int RunSigThread();
extern int CheckBlocked();
*/
import "C"
import (
	"os"
	"os/signal"
	"syscall"
	"testing"
)

var blocked bool

//export IntoGoAndBack
func IntoGoAndBack() {
	// Verify that SIGIO stays blocked on the C thread
	// even when unblocked for signal.Notify().
	signal.Notify(make(chan os.Signal), syscall.SIGIO)
	blocked = C.CheckBlocked() != 0
}

func testSigprocmask(t *testing.T) {

			if (verbose) {
				printf("attempting external signal test\n");
			}

			fprintf(stderr, "OK\n");
			fflush(stderr);

			// The program should be interrupted before
			// this sleep finishes. We use select rather
			// than sleep because in older versions of
			// glibc the sleep function does some signal
			// fiddling to handle SIGCHLD.  If this
			// program is fiddling signals just when the

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test installing a signal handler before the Go code starts.
// This is a lot like ../testcshared/main4.c.

#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

pkg syscall (freebsd-riscv64), const SIGCHLD Signal #53466
pkg syscall (freebsd-riscv64), const SIGCONT = 19 #53466
pkg syscall (freebsd-riscv64), const SIGCONT Signal #53466
pkg syscall (freebsd-riscv64), const SIGEMT = 7 #53466
pkg syscall (freebsd-riscv64), const SIGEMT Signal #53466
pkg syscall (freebsd-riscv64), const SIGINFO = 29 #53466
pkg syscall (freebsd-riscv64), const SIGINFO Signal #53466

pkg net/url, method (*URL) EscapedPath() string
pkg net/url, type URL struct, RawPath string
pkg os, func LookupEnv(string) (string, bool)
pkg os/signal, func Ignore(...os.Signal)
pkg os/signal, func Reset(...os.Signal)
pkg reflect, func ArrayOf(int, Type) Type
pkg reflect, func FuncOf([]Type, []Type, bool) Type
pkg runtime, func ReadTrace() []uint8
pkg runtime, func StartTrace() error

		if sig2 == 0 {
			t.Errorf("got %q; expected signal %q", ee, sig1)
		} else {
			t.Errorf("got %q; expected signal %q or %q", ee, sig1, sig2)
		}
	} else {
		return true
	}
	return false
}

func TestOsSignal(t *testing.T) {
	switch GOOS {
	case "windows":
		t.Skip("skipping signal test on Windows")
	}
	globalSkip(t)
	testenv.MustHaveGoBuild(t)

pkg os, const ModeIrregular = 524288
pkg os, const ModeIrregular FileMode
pkg os, const ModeType = 2399666176
pkg os, func UserCacheDir() (string, error)
pkg os/signal, func Ignored(os.Signal) bool
pkg regexp/syntax, method (Op) String() string
pkg runtime/trace, func IsEnabled() bool
pkg runtime/trace, func Log(context.Context, string, string)

package main

import "C"

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

// The channel used to read SIGIO signals.
var sigioChan chan os.Signal

// CatchSIGIO starts catching SIGIO signals.
//
//export CatchSIGIO
func CatchSIGIO() {
	sigioChan = make(chan os.Signal, 1)
	signal.Notify(sigioChan, syscall.SIGIO)
}

// ResetSIGIO stops catching SIGIO signals.
//
//export ResetSIGIO
func ResetSIGIO() {

package main

import "C"

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

// The channel used to read SIGIO signals.
var sigioChan chan os.Signal

// CatchSIGIO starts catching SIGIO signals.
//
//export CatchSIGIO
func CatchSIGIO() {
	sigioChan = make(chan os.Signal, 1)
	signal.Notify(sigioChan, syscall.SIGIO)
}

// ResetSIGIO stops catching SIGIO signals.
//
//export ResetSIGIO
func ResetSIGIO() {