Server : LiteSpeed System : Linux in-mum-web1333.main-hosting.eu 4.18.0-553.37.1.lve.el8.x86_64 #1 SMP Mon Feb 10 22:45:17 UTC 2025 x86_64 User : u141265441 ( 141265441) PHP Version : 8.4.3 Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail Directory :  /proc/self/root/opt/golang/1.19.4/misc/cgo/test/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package cgotest

/*
typedef void *HANDLE;

struct HWND__{int unused;}; typedef struct HWND__ *HWND;
*/
import "C"

import (
	"testing"
	"unsafe"
)

func test42018(t *testing.T) {
	// Test that Windows handles are marked go:notinheap, by growing the
	// stack and checking for pointer adjustments. Trick from
	// test/fixedbugs/issue40954.go.
	var i int
	handle := C.HANDLE(unsafe.Pointer(uintptr(unsafe.Pointer(&i))))
	recurseHANDLE(100, handle, uintptr(unsafe.Pointer(&i)))
	hwnd := C.HWND(unsafe.Pointer(uintptr(unsafe.Pointer(&i))))
	recurseHWND(400, hwnd, uintptr(unsafe.Pointer(&i)))
}

func recurseHANDLE(n int, p C.HANDLE, v uintptr) {
	if n > 0 {
		recurseHANDLE(n-1, p, v)
	}
	if uintptr(unsafe.Pointer(p)) != v {
		panic("adjusted notinheap pointer")
	}
}

func recurseHWND(n int, p C.HWND, v uintptr) {
	if n > 0 {
		recurseHWND(n-1, p, v)
	}
	if uintptr(unsafe.Pointer(p)) != v {
		panic("adjusted notinheap pointer")
	}
}