// license that can be found in the LICENSE file.

// Test that a program can survive SIGCHLD.

package main

import "syscall"

func main() {
	syscall.Kill(syscall.Getpid(), syscall.SIGCHLD)
	println("survived SIGCHLD")

    private final File pidFileInitScript = createPidFileInitScript(pidFile)

    List<String> getGradleArgs() {
        ["--init-script", pidFileInitScript.absolutePath]
    }

    String getPid() {
        pidFile.text
    }

    private static File createPidFile() {
        def pidFile = File.createTempFile("build-under-test", ".pid")
        pidFile.deleteOnExit()
        pidFile
    }

	register("Segv", Segv)
}

var Sum int

func Segv() {
	c := make(chan bool)
	go func() {
		close(c)
		for i := 0; ; i++ {
			Sum += i
		}
	}()

	<-c

	syscall.Kill(syscall.Getpid(), syscall.SIGSEGV)

	// Wait for the OS to deliver the signal.
	select {}

package org.gradle.launcher.daemon.context;

import org.gradle.internal.remote.Address;

/**
 * Data to identify and connect to a daemon.
 */
public interface DaemonConnectDetails {
    String getUid();

    Long getPid();

    Address getAddress();

    byte[] getToken();

//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb	Getuid() (uid int)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Listen(s int, n int) (err error)
//sys	Pause() (err error)

import (
	"os/signal"
	"syscall"
)

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

func SignalIgnoreSIGTRAP() {
	signal.Ignore(syscall.SIGTRAP)
	syscall.Kill(syscall.Getpid(), syscall.SIGTRAP)
	println("OK")

//sys	fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
//sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getuid() (uid int)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Listen(s int, n int) (err error)
//sys	Pause() (err error)

func FuzzFast(f *testing.F) {
	f.Fuzz(func (*testing.T, []byte) {})
}
-- fuzz_count_test.go --
package fuzz

import (
	"fmt"
	"os"
	"testing"
)

func FuzzTestCount(f *testing.F) {
	pid := os.Getpid()
	n := 0
	f.Fuzz(func(t *testing.T, _ []byte) {
		name := fmt.Sprintf("count/%v.%d", pid, n)
		if err := os.WriteFile(name, nil, 0666); err != nil {
			t.Fatal(err)
		}
		n++
	})
}

// it should abandon its work after a signal is received.
func ExampleNotifyContext() {
	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
	defer stop()

	p, err := os.FindProcess(os.Getpid())
	if err != nil {
		log.Fatal(err)
	}

	// On a Unix-like system, pressing Ctrl+C on a keyboard sends a
	// SIGINT signal to the process of the program in execution.
	//

	// validating that time elapses when the process calls time.Sleep than
	// skipping the test altogether.
	if runtime.GOOS != "wasip1" {
		syscall.Kill(syscall.Getpid(), syscall.SIGCHLD)
	}
}

func open(name string) (uintptr, error) {
	fd, err := syscall.Open(name, syscall.O_RDONLY, 0)
	if err != nil {
		return 0, err
	}
	return uintptr(fd), nil
}