// If not, -1 and false.
func terminationSignal(err error) (os.Signal, bool) {
	exitErr, ok := err.(*exec.ExitError)
	if !ok || exitErr.ExitCode() >= 0 {
		return syscall.Signal(-1), false
	}
	status := exitErr.Sys().(syscall.WaitStatus)
	return status.Signal(), status.Signaled()
}

// isCrashSignal returns whether a signal was likely to have been caused by an
// error in the program that received it, triggered by a fuzz input. For

*/

package api

import (
	"time"

	"k8s.io/apimachinery/pkg/api/resource"
)

// Signal defines a signal that can trigger eviction of pods on a node.
type Signal string

const (
	// SignalMemoryAvailable is memory available (i.e. capacity - workingSet), in bytes.
	SignalMemoryAvailable Signal = "memory.available"

		rusage: &rusage,
	}, nil
}

func (p *Process) signal(sig Signal) error {
	s, ok := sig.(syscall.Signal)
	if !ok {
		return errors.New("os: unsupported signal type")
	}

	// Which type of Process do we have?
	switch p.mode {
	case modeHandle:
		// pidfd
		return p.pidfdSendSignal(s)
	case modePID:
		// Regular PID
		return p.pidSignal(s)
	default:
		panic("unreachable")
	}
}

package main

/*
#include <signal.h>
#include <pthread.h>

// Raise SIGIO.
static void CRaiseSIGIO(pthread_t* p) {
	pthread_kill(*p, SIGIO);
}
*/
import "C"

import (
	"os"
	"os/signal"
	"sync/atomic"
	"syscall"
)

var sigioCount int32

// Catch SIGIO.
//
//export GoCatchSIGIO
func GoCatchSIGIO() {
	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGIO)

*/
import "C"

func main() {
	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGUSR1)
	defer signal.Stop(c)
	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
	<-c

			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

	}
}

// signalWaitUntilIdle waits until the signal delivery mechanism is idle.
// This is used to ensure that we do not drop a signal notification due
// to a race between disabling a signal and receiving a signal.
// This assumes that signal delivery has already been disabled for
// the signal(s) in question, and here we are just waiting to make sure
// that all the signals have been delivered to the user channels

	pool.SetConnMaxLifetime(0)
	pool.SetMaxIdleConns(3)
	pool.SetMaxOpenConns(3)

	ctx, stop := context.WithCancel(context.Background())
	defer stop()

	appSignal := make(chan os.Signal, 3)
	signal.Notify(appSignal, os.Interrupt)

	go func() {
		<-appSignal
		stop()
	}()

	Ping(ctx)

	Query(ctx, *id)
}

// Ping the database to verify DSN provided by the user is valid and the

		// first call on an M, until that libcCall instance
		// returns.  Reentrance only matters for signals, as
		// libc never calls back into Go.  The tricky case is
		// where we call libcX from an M and record g/pc/sp.
		// Before that call returns, a signal arrives on the
		// same M and the signal handling code calls another
		// libc function.  We don't want that second libcCall

}

// A Signal is a number describing a process signal.
// It implements the [os.Signal] interface.
type Signal int

const (
	_ Signal = iota
	SIGCHLD
	SIGINT
	SIGKILL
	SIGTRAP
	SIGQUIT
	SIGTERM
)

func (s Signal) Signal() {}

func (s Signal) String() string {
	if 0 <= s && int(s) < len(signals) {
		str := signals[s]
		if str != "" {
			return str
		}