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

package main

// #include <unistd.h>
// static void nop() {}
import "C"

import "syscall"

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

func TgkillSegvInCgo() {
	c := make(chan bool)
	go func() {
		close(c)
		for {
			C.nop()
		}
	}()

	<-c

	syscall.Tgkill(syscall.Getpid(), syscall.Gettid(), syscall.SIGSEGV)

}

func TestSegv(t *testing.T) {
	switch runtime.GOOS {
	case "plan9", "windows":
		t.Skipf("no signals on %s", runtime.GOOS)
	}

	for _, test := range []string{"Segv", "SegvInCgo", "TgkillSegv", "TgkillSegvInCgo"} {
		test := test

		// The tgkill variants only run on Linux.
		if runtime.GOOS != "linux" && strings.HasPrefix(test, "Tgkill") {
			continue
		}

		t.Run(test, func(t *testing.T) {